Agilent InfiniiVision 5000/6000/7000 Series Oscilloscopes User’s Guide Agilent Technologies
Notices © Agilent Technologies, Inc. 2000-2011 Warranty No part of this manual may be reproduced in any form or by any means (including electronic storage and retrieval or translation into a foreign language) without prior agreement and written consent from Agilent Technologies, Inc. as governed by United States and international copyright laws. The material contained in this document is provided “as is,” and is subject to being changed, without notice, in future editions.
Book Map Click the text to jump to a chapter Navigate to a step in your workflow Initial Setup Connecting to the Device Under Test Triggering Displaying Measurements and Math Functions Printing and Saving Acquisition Modes Web Interface Serial Decode/Lister Mask Test Controls and Connectors Digital Channels Navigate to a topic Reference InfiniiVision Oscilloscopes User’s Guide Index 3
In This User’s Guide… This guide shows you how to use the InfiniiVision 5000/6000/7000 Series oscilloscopes. It contains the following chapters and topics: 1 Introduction Model numbers, options, where to find specifications. 2 Initial Setup Unpacking and setting up your oscilloscope. Using the Quick Help system. Using the analog channels, setting up the timebase. 3 Connecting to the Device Under Test Connect the oscilloscope to the device under test using passive or active probes or 50-ohm BNC cables.
9 Web Interface Setting up the I/O port, establishing LAN connection, using the oscilloscope’s web interface. 10 Serial Decode/Lister Serial decode of I2C, I2S, SPI, CAN, LIN, RS232 (UART), FlexRay, and MIL-STD 1553 serial buses. 11 Mask Test Using mask test to identify signal excursions beyond set limits. 12 Controls and Connectors Click on a control or connector to find out how to use it. 13 Digital Channels Using the digital channels of a mixed-signal oscilloscope (MSO).
InfiniiVision Oscilloscopes User’s Guide
Contents Book Map 3 In This User’s Guide… 1 Introduction 4 21 Models Covered in this Manual Specifications and Characteristics Licensed Options Notes 2 Initial Setup 22 23 24 26 27 Package Contents 28 5000 Series Oscilloscope Package Contents 29 6000A Series Oscilloscope Package Contents 30 6000A Option BAT Oscilloscope Package Contents 6000L Series Oscilloscope Package Contents 32 7000A Series Oscilloscope Package Contents 33 Accessories Available 31 34 Tilt the oscilloscope up for easy viewing
Contents To mount the oscilloscope in a rack 43 To mount the 5000 or 6000 Series oscilloscope in a rack To mount the 6000L Series oscilloscope in a rack 43 To mount the 7000 Series oscilloscope in a rack 46 Ventilation Requirements 47 5000 and 6000A Series Ventilation Requirements 6000L Series Ventilation Requirements 47 7000 Series Ventilation Requirements 47 Power Requirements 47 48 Power-on the 5000/6000/7000 Series Oscilloscope 49 Power-on the Battery-Powered 6000A Series Oscilloscope Caution indi
Contents AutoProbe Interface Passive Probes Active Probes 72 73 74 Active Probes for 6000 Series 100 MHz Bandwidth Models Connect the Probes to the Oscilloscope 75 Maximum input voltage at analog inputs Do not float the oscilloscope chassis Compensating Passive Probes Calibrating Probes 76 76 77 78 Manually Setting the Probe Attenuation Factor Digital Probes 4 Triggering 75 80 80 81 Triggering - General Information Trigger Mode and Coupling Menu 83 84 Auto and Normal Trigger modes 84 Choos
Contents Trigger Holdoff 90 Trigger Holdoff Operating Hints To set holdoff 90 90 External Trigger Input 92 2-Channel Oscilloscope External Trigger Input 92 Maximum voltage at 2-channel oscilloscope external trigger input 93 4-Channel Oscilloscope External Trigger Input 94 Maximum voltage at 4-channel oscilloscope external trigger input 94 Trigger Output 95 Triggers 95 Source Frequency 95 Source Frequency/8 95 Trigger Types CAN Trigger 96 98 Duration Trigger 102 < qualifier time set softkey > qualifie
Contents LIN Trigger 128 MIL-STD 1553 Setup and Triggering 131 Probing MIL-STD 1553 Signals 131 Setup for MIL-STD 1553 Signals 132 MIL-STD 1553 Triggering 133 Nth Edge Burst Trigger 135 Pattern Trigger 137 Hex Bus Pattern Trigger Pulse Width Trigger 140 < qualifier time set softkey > qualifier time set softkey 139 141 142 Sequence Trigger 143 Define the “Find” Stage 145 Define the “Trigger on” Stage 146 Define the Optional “Reset on” Stage Adjust the Trigger Level 149 147 SPI Trigger 150 Assign Osc
Contents 5 Displaying 173 Tips for Displaying Waveforms Stabilizing the Display 174 174 Interpreting the Display 175 Graphic Symbols in Softkey Menus 176 AutoScale 177 How AutoScale works 177 Undo AutoScale 177 Enabling Fast Debug AutoScale 178 Specifying the Channels Displayed After AutoScale Preserving the Acquisition Mode During AutoScale Pan and Zoom 179 Waveform Intensity and Signal Detail Grid Intensity 182 183 Waveform Expansion Reference Point Vectors (Connect the Dots) Freeze Display
Contents Measurement Definitions 199 Time Measurements 199 Delay and Phase Measurements 203 Voltage Measurements 205 Overshoot and Preshoot Measurements Cursor Measurements 214 To make cursor measurements Cursor Examples 217 XY Horizontal Mode 211 215 220 Math Functions 224 To use waveform math 224 To perform a math function upon an arithmetic operation Math scale and offset 225 Units 226 Multiply 225 227 Add or Subtract Differentiate Integrate Square Root 228 230 232 234 FFT Measurement 236 FFT
Contents Saving Oscilloscope Data 247 Selecting a Destination for Your Saved Data 248 Selecting a File Name 249 Saving Waveform Trace and Oscilloscope Setup 250 Display Image and Waveform Data File Formats 250 Choosing Save Settings 251 To save a waveform and/or setup to a USB mass storage device 255 To save a waveform and/or setup to the oscilloscope’s internal memory 256 To recall waveform trace and/or oscilloscope setup 256 File Explorer 257 8 Acquisition Modes 261 To start and stop an acquisition To
Contents Accessing the Web Interface 280 Browser Web Control 281 Remote Front Panel 281 Remote Programming 283 Remote Programming with Agilent IO Libraries Get Image 285 Identification Function 10 286 Instrument Utilities 287 Setting a Password 288 Serial Decode/Lister 291 Serial Decode Lister 284 292 293 CAN Serial Decode 295 Interpreting CAN Decode 298 CAN Totalizer 299 Interpreting CAN Lister Data 301 FlexRay Serial Decode 302 Interpreting FlexRay Frame Decode 303 FlexRay Totalizer 304
Contents LIN Serial Decode 314 Interpreting LIN Decode 317 Interpreting LIN Lister Data 319 MIL-STD 1553 Serial Decode 320 Interpreting MIL-STD 1553 Decode 321 Viewing MIL-STD 1553 Data in the Lister 322 SPI Serial Decode 323 Interpreting SPI Decode 327 Interpreting SPI Lister Data 328 UART/RS232 Serial Decode 329 Interpreting UART/RS232 Decode 333 UART/RS232 Totalizer 334 Interpreting UART/RS232 Lister Data 335 11 Mask Test 337 To create a mask from a “golden” waveform (Automask) Troubleshooting Mask Se
Contents 12 Controls and Connectors 351 Front Panel 352 5000/6000 Series Front Panel (4-channel) 352 5000/6000 Series Front Panel (2-Channel, differences only) 353 6000L Series Front and Rear Panel 354 7000 Series Front Panel (4-Channel) 355 7000 Series Front Panel (2-Channel, differences only) Front Panel Control and Connector Descriptions 356 357 Do not connect a host computer to the oscilloscope’s USB host port 357 Rear Panel 362 5000 Series Rear Panel (4-Channel) 362 5000 Series Rear Panel (2-Cha
Contents To change the displayed size of the digital channels To switch a single channel on or off 379 To switch all digital channels on or off 379 To switch groups of channels on or off 379 To change the logic threshold for digital channels To reposition a digital channel 379 380 380 To display digital channels as a bus 381 Digital channel signal fidelity: Probe impedance and grounding 385 Input Impedance 385 Probe Grounding 387 Best Probing Practices 388 To replace digital probe leads 14 Uti
Contents Measurement Category 403 Measurement Category 403 Measurement Category Definitions 403 Transient Withstand Capability 404 Maximum input voltage at analog inputs and 2-channel external trigger input 404 Maximum input voltage at digital channels Environmental Conditions 404 405 Using the 10 MHz reference clock 406 Sample clock and frequency counter accuracy 406 Supplying an external timebase reference 406 To supply a sample clock to the oscilloscope 406 Maximum input voltage at 10 MHz REF connect
Contents 20 InfiniiVision Oscilloscopes User’s Guide
Agilent InfiniiVision 5000/6000/7000 Series Oscilloscope User’s Guide 1 Introduction Models Covered in this Manual 22 Specifications and Characteristics 23 Licensed Options 24 Notes 26 The Agilent InfiniiVision 5000, 6000, and 7000 Series oscilloscopes deliver powerful features and high performance: • 100 MHz, 300 MHz, 350 MHz, 500 MHz, and 1 GHz bandwidth models. • Up to 4 GSa/s sample rate. • 6.3 inch or 12.1 inch XGA display.
1 Introduction Agilent InfiniiVision oscilloscopes feature MegaZoom III technology: • Most responsive deep memory. • High definition color display. • Largest display in its class (7000 Series, 12.1 inches). • Fastest waveform update rates, uncompromised. For more information about InfiniiVision oscilloscopes, see: www.agilent.
Introduction 1 7000 SERIES MODEL NUMBERS, BANDWIDTHS, AND SAMPLING RATES Bandwidth 100 MHz 350 MHz 500 MHz 1 GHz Maximum Sample Rate 2 GSa/s 2 GSa/s 4 GSa/s 4 GSa/s 2-Channel + 16 Logic Channels MSO MSO7012A MSO7032A MSO7052A 4-Channel + 16 Logic Channels MSO MSO7014A MSO7034A MSO7054A 2-Channel DSO DSO7012A DSO7032A DSO7052A 4-Channel DSO DSO7014A DSO7034A DSO7054A MSO7104A DSO7104A Specifications and Characteristics Please see the InfiniiVision oscilloscope data sheets for co
1 Introduction Licensed Options Many of the following licensed options can be easily installed without returning the oscilloscope to a Service Center. Not all options can be installed on all models. See data sheets for details. To see the list of options installed on your oscilloscope, press [Utility]&Options&Licenses&Show license information.
Introduction 1 UPGRADE OPTIONS (CONTINUED) Option Description Order LSS I2C/SPI serial decode option (for 4 Order N5423A after purchase (Option LSS at channel or 4+16 channel models only) time of purchase). You can easily install this option yourself. MSO Mixed Signal Oscilloscope (MSO). Upgrade a DSO to an MSO. Order N2735, N2736A, or N2737A. You can easily install this option yourself. The logic cable kit is supplied with the MSO license. PWR U1881A Power Application Order U1881A.
1 Introduction Notes Built-in Quick Help A Quick Help system is built into the oscilloscope. Press and hold any key to display Quick Help. Complete instructions for using the quick help system are given on page 55. Digital Channels Because all of the oscilloscopes in the Agilent InfiniiVision Series have analog channels, the analog channel topics in this book apply to all instruments.
Agilent InfiniiVision 5000/6000/7000 Series Oscilloscope User’s Guide 2 Initial Setup Package Contents 28 5000 Series Oscilloscope Package Contents 29 6000A Series Oscilloscope Package Contents 30 6000A Option BAT Oscilloscope Package Contents 31 6000L Series Oscilloscope Package Contents 32 7000A Series Oscilloscope Package Contents 33 Accessories Available 34 Tilt the oscilloscope up for easy viewing 36 To install the optional front panel overlay 40 To mount the oscilloscope in a rack 43 Ventilation Requ
2 Initial Setup Package Contents ✔ Inspect the shipping container for damage. If your shipping container appears to be damaged, keep the shipping container or cushioning material until you have inspected the contents of the shipment for completeness and have checked the oscilloscope mechanically and electrically.
Initial Setup 2 5000 Series Oscilloscope Package Contents Front-panel cover InfiniiVision 5000 Series Oscilloscope Oscilloscope probes N2863A or 10073C (Qty 2 or 4) Documentation CD Automation-Ready CD Power cord (Based on country of origin) InfiniiVision Oscilloscopes User’s Guide 29
2 Initial Setup 6000A Series Oscilloscope Package Contents Front-panel cover 6000A Series Oscilloscope Oscilloscope probes 10073C or 10074C (Qty 2 or 4) Documentation CD Digital Probe Kit* (MSO models only) Automation-Ready CD Power cord (Based on country of origin) *Digital Probe Kit contains: 54620-61801 16-channel cable (qty 1) 5959-9334 2-inch probe ground leads (qty 5) 5090-4833 Grabber (qty 20) Digital probe replacement parts are listed on page 389 30 Digital cable guide (MSO models only)
Initial Setup 2 6000A Option BAT Oscilloscope Package Contents Front-panel cover 6000A Series Option BAT Oscilloscope Oscilloscope probes 10073C or 10074C (Qty 2 or 4) Ground wire Digital Probe Kit* (MSO models only) AC/DC power adapter Power cord (see Power Cords table) Digital cable guide (MSO models only) Documentation CD Automation-Ready CD InfiniiVision Oscilloscopes User’s Guide *Digital Probe Kit contains: 54620-61801 16-channel cable (qty 1) 5959-9334 2-inch probe ground leads (qty 5) 5
2 Initial Setup 6000L Series Oscilloscope Package Contents 6000L Series Oscilloscope 50 ohm feedthrough termination adapter P/N 0960-0301, Qty. 4 GPIB cable extender P/N 5183-0803 Oscilloscope Probes 10073C or 10074C Qty.
Initial Setup 2 7000A Series Oscilloscope Package Contents Front-panel cover and accessory pouch (not shown) InfiniiVision 7000 Series oscilloscope 10073C or 1165A probes (Qty 2 or 4) Documentation CD Automation-Ready CD Digital Probe Kit* (MSO models only) Power cord (Based on country of origin) *Digital Probe Kit contains: 54620-61801 16-channel cable (qty 1) 5959-9334 2-inch probe ground leads (qty 5) 5090-4833 Grabber (qty 20) Digital probe replacement parts are listed on page 389.
2 Initial Setup Accessories Available Model N2918A N2916B N2732A 54684-44101 54913-44101 various N2760A N2717B N2733A N2734A 1180CZ N2919A N2605A-097 10833A 5061-0701 54620-68701 54684-42301 01650-61607 0960-0301 10070C 10074C 10073C 1165A 10076A N2863A N2771A N2790A N2786A N2784A N2785A N2880A N2881A N2882A 34 Description 6000/7000 Series Oscilloscope Evaluation Kit 5000/6000 Series Oscilloscope Rackmount Kit 7000 Series Oscilloscope Rackmount Kit 5000/6000 Front Panel Cover 7000 Front-Panel Cover Fron
Initial Setup Model W2637A W2638A W2639A N5450A N2791A N2792A N2793A 1156A 1144A 1145A† 1130A† N2772A 1141A 1146A 1147A† N2780A N2781A N2782A N2783A 10072A 10075A 10076A E2613B E2614A E2615B E2616A E2643A E2644A 2 Description LPDDR BGA probe, x16, 404 MHz, 100 ohm input impedance LPDDR BGA probe, x32, 404 MHz , 100 ohm input impedance Oscilloscope Adapter Board, 1.
2 Initial Setup You can find these items at www.agilent.com or at www.parts.agilent.com. For information on more probes and accessories see “5989-6162EN Probes and Accessories Selection Guide” and “5968-8153EN 5000 and 6000 Series Oscilloscope Probes and Accessories Data Sheet,” available at www.agilent.com. Tilt the oscilloscope up for easy viewing The oscilloscope can be tilted up for easier viewing. To tilt the 5000 Series oscilloscope up for easy viewing The oscilloscope’s handle affects the tilt.
2 Initial Setup The tilt tabs (underneath the oscilloscope) can be positioned as shown in the center picture below. The handle can be used as a stand when placing the oscilloscope on a floor, as shown in the picture on the right. To tilt the 6000 Series oscilloscope up for easy viewing You can use the oscilloscope’s handle for carrying the instrument, or you can use it as a stand to tilt the instrument up for easier viewing of its display.
2 Initial Setup 2 Without releasing the hubs, rotate the handle to the desired position. Then release the hubs. Continue rotating the handle until it clicks into a set position. To tilt the 7000 Series oscilloscope up for easy viewing 1 Tilt the oscilloscope forward. Rotate the foot down and toward the rear of the oscilloscope. The foot will lock into place. 2 Repeat for the other foot.
Initial Setup 2 3 Rock the oscilloscope back so that it rests securely on its feet. To retract the feet 1 Tilt the oscilloscope forward. Press the foot release button and rotate the foot up and toward the front of the oscilloscope. 2 Repeat for the other foot.
2 Initial Setup To install the optional front panel overlay 5000 Series Overlay When Option AB0 (Traditional Chinese localization) or Option AB2 (Simplified Chinese localization) is chosen at time of purchase, front panel overlays with Traditional Chinese or Simplified Chinese text are provided. When Option ABJ (Japanese localization) is ordered, a Japanese front panel overlay is provided.
2 Initial Setup 6000 Series Overlay Large label: Remove the protective backing to expose the adhesive, align the label with the top and left edge of the front panel, and press the overlay into place. Small Label: Remove the protective backing, and affix over existing label. Note: the cut-outs at the top of the label are for indicators on battery operated units. Removal Tab To remove the label, carefully pull it away using the tab at the lower right corner. The overlays will be available at www.parts.
2 Initial Setup 7000 Series Overlay A front panel overlay which labels the controls is available in Simplified Chinese, Traditional Chinese, and Japanese. The overlay is included when the localization option is chosen at time of purchase. Remove the protective backing to expose the adhesive, align the label with the top and left edge of the front panel, and press the overlay into place. Removal Tab To remove the label, carefully pull it away using the tab at the lower right corner.
2 Initial Setup To mount the oscilloscope in a rack The InfiniiVision oscilloscopes can be mounted in an Electronic Industries Association (EIA) standard 19-inch (487-mm) rack cabinet. To mount the 5000 or 6000 Series oscilloscope in a rack To mount the oscilloscope in a rack, purchase and install the N2916B rack mount kit. Instructions are included in the kit. For details search for N2916B at www.agilent.com.
2 Initial Setup Step 4 If needed Step 1, step 5 Step 2 Step 3 If needed 1 Loosely attach the Front Extender Supports to the Rear Extender Supports with four (4) clip-nuts and four (4) of the 10-32 x 0.375 Rail Screws. (The screws require a Torx T20 driver.) Choose the correct set of slots in the supports such that their overall length is approximately correct for the depth of your cabinet.
2 Initial Setup NOTE The sets of holes in the Rack Mount Extenders are slightly offset. This was done to ensure that the Rack Mount Extenders are attached to the oscilloscope at the correct points so that the oscilloscope’s ventilation area is not obscured. The holes in the Rack Mount Extenders will align with the correct holes in the oscilloscope and the screws will go in easily. Do not force the screws into the wrong holes.
2 Initial Setup 6000L Mounting Bracket Dimensions The following information is provided in case you want to design custom mounting brackets for the 6000L. Dimensions are in mm. To mount the 7000 Series oscilloscope in a rack To mount the oscilloscope in a rack, purchase and install the N2732A rack mount kit. Instructions are included in the kit. For details search for N2732A at www.agilent.com.
2 Initial Setup Ventilation Requirements The air intake and exhaust areas must be free from obstructions. Unrestricted air flow is required for proper cooling. Always ensure that the air intake and exhaust areas are free from obstructions. 5000 and 6000A Series Ventilation Requirements The fan draws air in from underneath the oscilloscope and pushes it out behind the oscilloscope.
2 Initial Setup Power Requirements 5000, 6000A (without Option BAT), and 7000 Line voltage, frequency, and power ~Line 100-120 Vac, 50/60/400 Hz 100-240 Vac, 50/60 Hz 120 W max 6000A with Option BAT AC power supply/charger line voltage, frequency, and power ~Line 100-240 Vac, 50/60 Hz 120 W max 6000A with Option BAT DC input voltage and power consumption using N5429A automotive adapter 12 Vdc nominal, (10-18 Vdc) 67-75 W External ground connection required. See warning on page 51.
2 Initial Setup Power-on the 5000/6000/7000 Series Oscilloscope 1 Connect the power cord to the rear of the oscilloscope, then to a suitable AC voltage source. Route the power cord so the oscilloscope’s feet and legs do not pinch the cord. The oscilloscope automatically adjusts for input line voltages in the range 100 to 240 VAC. The line cord provided is matched to the country of origin. WA R N I N G Always use a grounded power cord. Do not defeat the power cord ground. 2 Press the power switch.
2 Initial Setup Caution indicator. Illuminates (amber) when running on the internal battery. See “Operating” below. Battery power indicator. Turns from green to red when there is 15 to 20 minutes of battery power remaining. Charging indicator. Illuminates when the battery is charging. Turns off when the battery is fully charged or when the charger is disconnected. The battery will last approximately 1.75 hours before requiring recharging. Operating time depends on the oscilloscope configuration.
2 Initial Setup 2 Always connect the supplied ground wire from the ground post on the back of the instrument to earth ground (even when connected to an AC or DC adapter for charging/operating the instrument). WA R N I N G Maintain oscilloscope ground connection. Do not negate the protective action of the ground connection to the oscilloscope.
2 Initial Setup Charging the Battery When charging the battery, the operating temperature should be in the range from 0C to 45C, 80% relative humidity. 1 Connect the supplied AC adapter to the back of the oscilloscope, and connect the adapter’s power cord to a suitable AC voltage source. CAUTION AC adapter for battery-powered oscilloscopes: Use only the supplied adapter. Damage to the equipment could result if an improper AC adapter is used.
2 Initial Setup Keys, Softkeys, and the Entry Knob On the front panel, “key” refers to any key (button) you can press. “Softkey” specifically refers to the six keys that are directly below the display. The legend for these keys is directly above them, on the display. Their functions change as you navigate through the oscilloscope’s menus. In this manual, instructions for pressing a series of keys are written in an abbreviated manner.
2 Initial Setup Verifying Basic Oscilloscope Operation If you have a 6000L Series oscilloscope, you need to start a Web control session, as described in “Accessing the Web Interface” on page 280. 1 Press the [Save/Recall] key on the front panel, then press the Default Setup softkey ([Save/Recall]&Default Setup). The oscilloscope is now configured to its default settings (configuration details on page 392). 2 Connect an oscilloscope probe from channel 1 to the Probe Comp terminal on the front panel.
Initial Setup 2 Quick Help To view Quick Help 1 Press and hold the key or softkey for which you would like to view help. Quick Help Message Press and Hold Front Panel Key or Softkey (or Right-Click Softkey when using Web browser control) By default, Quick Help remains on the screen until another key is pressed or a knob is turned. You can set Quick Help to close when you release the key.
2 Initial Setup Quick Help Languages To choose a Quick Help language in the oscilloscope: 1 Press [Utility], then press the Language softkey. 2 Repeatedly press and release the Language softkey or rotate the Entry knob until the desired language is selected. Graphical User Interface Languages When Quick Help is set to one of the following languages, the Graphical User Interface (GUI) will be displayed in the language chosen.
Initial Setup 2 To set the clock The Clock Menu lets you set the current date and time of day (24-hour format). This time/date stamp will appear on hardcopy prints and directory information on the USB mass storage device. To set the date and time, or to view the current date and time: 1 Press [Utility]&Options&Clock. Year set Month set Day set Hour set Minute set Return to previous menu 2 Press the Year, Month, Day, Hour or Minute softkey and rotate the Entry knob to set to the desired number.
2 Initial Setup To set up the screen saver The oscilloscope can be configured to turn on a display screen saver when the oscilloscope has been idle for a specified length of time. 1 Press [Utility]&Options&Preferences&Screen Saver to display the Screen Saver Menu. Screen saver Screen saver image time delay Preview Return to previous menu 2 Press the Saver softkey to select the screen saver type.
Initial Setup 2 4 Press the Preview softkey to preview the screen saver you have selected with the Saver softkey. 5 To view the normal display after the screen saver has started, press any key or turn any knob. Using the Analog Channels 1 Connect the oscilloscope probes for channels 1 and 2 to the Probe Comp output on the front panel of the instrument. 2 Press the [1] key in the Analog section of the oscilloscope’s front panel to display the Channel 1 Menu.
2 Initial Setup Pressing an analog channel key displays the channel’s menu and turns the display of the channel on or off. The channel is displayed when the key is illuminated. Turning channels off You must be viewing the menu for a channel before you can turn it off. For example, if channel 1 and channel 2 are turned on and the menu for channel 2 is being displayed, to turn channel 1 off, press [1] to display channel 1 menu, then press [1] again to turn channel 1 off.
2 Initial Setup Channel Coupling and Input Impedance Selection Measurement Hints If the channel is DC coupled, you can quickly measure the DC component of the signal by simply noting its distance from the ground symbol. If the channel is AC coupled, the DC component of the signal is removed, allowing you to use greater sensitivity to display the AC component of the signal. 3 Press the channel’s on/off key, then press the Coupling softkey to select the input channel coupling.
2 Initial Setup • 1M Ohm mode is for use with many passive probes and for general-purpose measurements. The higher impedance minimizes the loading effect of the oscilloscope on the device under test. 5 Press the BW Limit softkey to turn on bandwidth limiting. Pressing the BW Limit softkey turns the bandwidth limit on or off for the selected channel. When bandwidth limit is on, the maximum bandwidth for the channel is approximately 25 MHz.
2 Initial Setup • Probe Attenuation Factor— This is set automatically if the oscilloscope can identify the connected probe. See “AutoProbe Interface” on page 72 and “Manually Setting the Probe Attenuation Factor” on page 80. • Skew — When measuring time intervals in the ns range, small differences in cable length can affect the measurement. Use Skew to remove cable-delay errors between any two channels.
2 Initial Setup To set up the Horizontal time base 1 Press the [Menu/Zoom] key (or [Main/Delayed] key on some oscilloscopes) in the Horizontal section of the front panel. Trigger point Time reference Delay time Sweep speed Trigger source Trigger level or threshold Normal sweep mode XY or Roll mode Sample rate Zoom sweep mode Horiz.
Initial Setup 2 3 Press the Fine softkey to turn on the time base fine adjustment. The Fine softkey lets you change the sweep speed in smaller increments with the time/division knob. The sweep speed remains fully calibrated when Fine is on. The value is displayed in the status line at the top of the display. When Fine is turned off, the Horizontal sweep speed knob changes the time base sweep speed in a 1-2-5 step sequence. 4 Note the setting of the Time Ref (time reference) softkey.
2 Initial Setup delay time set to 400 s. The delay time number tells you how far the time reference point is located from the trigger point. When delay time is set to zero, the delay time indicator overlays the time reference indicator. All events displayed left of the trigger point happened before the trigger occurred, and these events are called pre-trigger information. You will find this feature very useful because you can now see the events that led up to the trigger point.
Initial Setup These markers define the beginning and end of the Zoom window Time/div for Zoom window Time/div for normal sweep 2 Delay time momentarily displays when the Horizontal Position knob is turned Normal sweep window Signal anomaly expanded in zoom window Zoom window Select Normal sweep or Zoom When the horizontal mode is set to Normal, the horizontal position control (delay control) positions the normal sweep relative to the trigger. This delay is a fixed number.
2 Initial Setup To specify the measurement window for Zoom mode When the zoomed time base is displayed, you can specify whether the upper, Main window or the lower, Zoom window is used as the measurement window. 1 Press [Utility] > Options > Preferences > More. 2 Press Window to select from these measurement window options: • Auto Select – The measurement is attempted in the lower, Zoom window; if it cannot be made there, the upper, Main window is used.
2 Initial Setup XY mode XY mode changes the display from a volts-versus-time display to a volts-versus-volts display. The time base is turned off. Channel 1 amplitude is plotted on the X-axis and Channel 2 amplitude is plotted on the Y-axis. You can use XY mode to compare frequency and phase relationships between two signals. XY mode can also be used with transducers to display strain versus displacement, flow versus pressure, volts versus current, or voltage versus frequency.
2 70 Initial Setup InfiniiVision Oscilloscopes User’s Guide
Agilent InfiniiVision 5000/6000/7000 Series Oscilloscope User’s Guide 3 Connecting to the Device Under Test Analog Input Impedance (50 Ohm or 1 MOhm) 72 AutoProbe Interface 72 Passive Probes 73 Active Probes 74 Active Probes for 6000 Series 100 MHz Bandwidth Models 75 Connect the Probes to the Oscilloscope 75 Compensating Passive Probes 77 Calibrating Probes 78 Manually Setting the Probe Attenuation Factor 80 Digital Probes 80 This chapter explains how to connect the oscilloscope to your device under test
3 Connecting to the Device Under Test Analog Input Impedance (50 Ohm or 1 MOhm) The input impedance of most InfiniiVision oscilloscope analog channels can be set to either 50 or 1 M . (The input impedance of 6000 Series 100 MHz bandwidth models is fixed at 1 M .) The 50 mode matches 50 cables and many active probes commonly used in making high frequency measurements. This impedance matching gives you the most accurate measurements because reflections are minimized along the signal path.
Connecting to the Device Under Test 3 Passive Probes All InfiniiVision oscilloscopes recognize passive probes such as the 10073C, 10074C and 1165A. These probes have a pin on their connector that connects to the ring around the oscilloscope’s BNC connector. Therefore, the oscilloscope will automatically set the attenuation factor for recognized Agilent passive probes.
3 Connecting to the Device Under Test Active Probes Most Agilent active probes are compatible with the AutoProbe interface. Active probes that do not have their own external power supply require substantial power from the AutoProbe interface. “Quantity Supported” indicates the maximum number of each type of active probe that can be connected to the oscilloscope.
Connecting to the Device Under Test 3 Active Probes for 6000 Series 100 MHz Bandwidth Models The following active probes use their own power supply. Therefore, they can be used on all 6000 Series oscilloscopes, including the 100 MHz bandwidth models. Many active probes have a 50 output impedance. The input impedance of 6000 Series 100 MHz bandwidth models is fixed at 1 M.
3 Connecting to the Device Under Test CAUTION Maximum input voltage at analog inputs: CAT I 300 Vrms, 400 Vpk; transient overvoltage 1.6 kVpk CAT II 100 Vrms, 400 Vpk 50 input: 5 Vrms Input protection is enabled in 50 mode and the 50 load will disconnect if greater than 5 Vrms is detected. However the inputs could still be damaged, depending on the time constant of the signal. The 50 input protection only functions when the oscilloscope is powered on.
Connecting to the Device Under Test 3 Compensating Passive Probes Each oscilloscope passive probe must be compensated to match the input characteristics of the oscilloscope channel to which it is connected. A poorly compensated probe can introduce significant measurement errors. 1 Perform the procedure “Verifying Basic Oscilloscope Operation” on page 54. 2 Use a nonmetallic tool (supplied with the probe) to adjust the trimmer capacitor on the probe for the flattest pulse possible.
3 Connecting to the Device Under Test Calibrating Probes Some probes, such as the 10073C, 10074C, and 1165A passive probes, do not require calibration. When one of these probes is connected, the Calibrate Probe softkey in the Channel Probe Menu is grayed-out (displayed in faint text). However, for certain active probes, such as InfiniiMax probes, the oscilloscope can accurately calibrate its analog channels for the probe.
Connecting to the Device Under Test 3 • 10:1 (+20 dB Atten) single-ended browser • 10:1 (+20 dB Atten) differential browser 6 Press the Calibrate Probe softkey and follow the instructions on the display. For more information on InfiniiMax probes and accessories, see the probe’s User’s Guide.
3 Connecting to the Device Under Test Manually Setting the Probe Attenuation Factor The probe attenuation factor must be set properly for accurate measurement results. If you connect a probe that is not automatically identified by the oscilloscope, you can manually set the attenuation factor as follows: 1 Press the channel key. 2 Press the Probe softkey until you have selected how you want to specify the attenuation factor, choosing either Ratio or Decibels.
Agilent InfiniiVision 5000/6000/7000 Series Oscilloscope User’s Guide 4 Triggering Triggering - General Information 83 Trigger Mode and Coupling Menu 84 Auto and Normal Trigger modes 84 Trigger Level Adjustment 86 Trigger Coupling 87 Trigger Noise Rejection 87 Trigger Holdoff 90 External Trigger Input 92 Trigger Output 95 Trigger Types 96 CAN Trigger 98 Duration Trigger 102 Edge Trigger 105 FlexRay Setup and Triggering 107 Glitch or Narrow Pulse Capture 112 I2C Trigger 115 I2S Trigger 121 LIN Trigger 128 M
4 Triggering This chapter provides instructions for setting up triggers for various signal types. Setups can be saved if desired (see “Saving Oscilloscope Data” on page 247). The easiest way to trigger on a waveform is to use AutoScale. Simply press the [AutoScale] key and the oscilloscope will attempt to trigger on the waveform using a simple Edge Trigger type. For AutoScale details see “AutoScale” on page 177. Complex waveforms may require specific trigger setups as described in this chapter.
4 Triggering Triggering - General Information A triggered waveform is one in which the oscilloscope begins tracing (displaying) the waveform, from the left side of the display to the right, each time a particular trigger condition is met. This provides stable display of periodic signals such as sine waves and square waves, as well as nonperiodic signals such as serial data streams. The figure below shows the conceptual representation of acquisition memory.
4 Triggering Trigger Mode and Coupling Menu • Press the [Mode/Coupling] key in the Trigger section of the front panel. 2-channel models only Auto and Normal Trigger modes Choosing Auto Trigger Mode or Normal Trigger Mode If you press [Run] when the oscilloscope is in Normal trigger mode, a trigger must be detected before an acquisition can complete. No waveform will be displayed unless the trigger condition is met.
4 Triggering Auto Mode Use the auto trigger modes for signals other than low-repetitive-rate signals and for unknown signal levels. To display a DC signal, you must use auto trigger mode since there are no edges on which to trigger. When you select [Run], the oscilloscope operates by first filling the pre-trigger buffer. It starts searching for a trigger after the pre-trigger buffer is filled, and continues to flow data through this buffer while it searches for the trigger.
4 Triggering pre-trigger buffer, the trigger will not be found. If you use Normal mode and wait for the trigger condition indicator to flash before causing the action in the circuit, the oscilloscope will always find the trigger condition. Some measurements you want to make will require you to take some action in the device under test to cause the trigger event. Usually, these are single-shot acquisitions, where you will use the [Single] key.
Triggering 4 Trigger Coupling 1 Press the [Mode/Coupling] key. 2 Press the Coupling softkey, then select DC, AC, or LF Reject coupling. • DC coupling allows DC and AC signals into the trigger path. • AC coupling places a 10 Hz high-pass filter in the trigger path removing any DC offset voltage from the trigger waveform. The high-pass filter in the External Trigger input path is 3.5 Hz for all models. Use AC coupling to get a stable edge trigger when your waveform has a large DC offset.
4 Triggering HF Reject HF Reject adds a 50 kHz low-pass filter in the trigger path to remove high frequency components from the trigger waveform. You can use HF Reject to remove high-frequency noise, such as AM or FM broadcast stations or noise from fast system clocks, from the trigger path. 1 Press [Mode/Coupling]&HF Reject.
4 Triggering LF Reject Low-frequency reject (LF reject) adds a high-pass filter with the 3-dB point at 50 kHz. LF reject removes low-frequency signals, such as power line noise, from the trigger path. 1 Press [Mode/Coupling]&Coupling&LF Reject. 0 dB 3 dB down point Pass Band DC 50 kHz Noise Rejection Noise Rej adds additional hysteresis to the trigger circuitry. By increasing the trigger hysteresis band, you reduce the possibility of triggering on noise.
4 Triggering Trigger Holdoff Trigger Holdoff Operating Hints Holdoff keeps a trigger from occurring until after a certain amount of time has passed since the last trigger. This feature is valuable when a waveform crosses the trigger level multiple times during one period of the waveform. Without holdoff, the oscilloscope could trigger on each of the crossings, producing a confusing waveform. With holdoff set correctly, the oscilloscope always triggers on the same crossing.
Triggering 4 By setting the Holdoff, you can synchronize triggers. The oscilloscope will trigger on one edge of the waveform, and ignore further edges until the holdoff time expires. The oscilloscope will then re-arm the trigger circuit to search for the next edge trigger. This allows the oscilloscope to trigger on a repeating pattern in a waveform.
4 Triggering External Trigger Input The External Trigger input can be used as a source in several of the trigger types. On 2-channel oscilloscopes, the external trigger BNC input is on the front panel and is labeled Ext Trigger. On 4-channel oscilloscopes, the external trigger BNC input is on the rear panel and is labeled Ext Trig. 2-Channel Oscilloscope External Trigger Input External Trigger Probe Settings You can set external trigger probe parameters as described below.
4 Triggering CAUTION Maximum voltage at 2-channel oscilloscope external trigger input: CAT I 300 Vrms, 400 Vpk; transient overvoltage 1.6 kVpk CAT II 100 Vrms, 400 Vpk 50 input: 5 Vrms Input protection is enabled in 50 mode and the 50 load will disconnect if greater than 5 Vrms is detected. However the inputs could still be damaged, depending on the time constant of the signal. The 50 input protection only functions when the oscilloscope is powered on.
4 Triggering 4-Channel Oscilloscope External Trigger Input Input Impedance The external trigger input impedance for the 4-channel oscilloscope is approximately 2.14 k. Input Voltage The input voltage sensitivity is 500 mV, from DC to 500 MHz. The input voltage range is ±15 V. CAUTION Maximum voltage at 4-channel oscilloscope external trigger input: 15 Vrms. Do not exceed 15 Vrms at rear panel External Trigger input or damage to the oscilloscope may occur.
4 Triggering Trigger Output You can select one of the following signals to be output at the TRIG OUT connector on the rear panel of the oscilloscope: • Triggers • Source frequency • Source frequency/8 • Mask test pass/fail (see “Mask Test Trigger Output” on page 342.) Triggers This is the default selection. In this mode, a rising edge is output each time the oscilloscope triggers. This rising edge is delayed 17 ns from the oscilloscope’s trigger point.
4 Triggering Trigger Types The oscilloscope lets you synchronize the display to the actions of the device under test by defining a trigger condition. You can use any input channel or the External Trigger Input BNC as the source for most trigger types. MegaZoom Technology Simplifies Triggering With the built-in MegaZoom technology, you can simply AutoScale the waveforms, then stop the oscilloscope to capture a waveform.
Triggering 4 Changes to the trigger specification are applied when you make them. If the oscilloscope is stopped when you change a trigger specification, the oscilloscope will use the new specification when you press [Run/Stop] or [Single]. If the oscilloscope is running when you change a triggering specification, it uses the new trigger definition when it starts the next acquisition.
4 Triggering CAN Trigger The Controller Area Network (CAN) trigger allows triggering on CAN version 2.0A and 2.0B signals. Setup consists of connecting the oscilloscope to a CAN signal, using the Signals Menu to specify the signal source, baud rate, and sample point, and using the Settings Menu to specify the event to trigger upon. If the AMS license is not installed on the oscilloscope, you can still trigger on the Start of Frame (SOF) bit of a CAN data frame.
Triggering 4 5 Press the Settings softkey to display CAN Trigger Menu. Signals Menu Trigger condition Bits Selector Return to previous menu 6 Repeatedly press and release the Trigger: softkey or rotate the Entry knob to select the trigger condition. • SOF - Start of Frame — The oscilloscope triggers at the start of a frame. • Remote Frame ID (RTR) — The oscilloscope triggers on remote frames with the specified ID. Press the Bits softkey to select the ID.
4 Triggering 7 Press the Signals softkey to enter the CAN Signals Menu. Signals source Baud Rate Userdefined Baud Rate Sample Point CAN Signal Selection Return to previous menu 8 Press the Source softkey to select the channel connected to the CAN signal line. As you repeatedly press the Source softkey (or rotate the Entry knob), the CAN label for the source channel is automatically set and the channel you select is shown in the upper-right corner of the display next to “CAN”.
4 Triggering The CAN baud rate can be set to: 10 kb/s 50 kb/s 20 kb/s 62.5 kb/s 33.3 kb/s 83.3 kb/s User Defined 100 kb/s 125 kb/s 250 kb/s 500 kb/s 800 kb/s 1 Mb/s The default baud rate is 1 Mb/s. If the desired baud rate is not shown in the table, select User Defined. You can set the CAN baud rate from 10.0 kb/s to 1.000 Mb/s in increments of 100 b/s. Press the User Baud softkey and rotate the Entry knob to make your selection.
4 Triggering Duration Trigger Duration trigger lets you define a pattern, then trigger on a specified time duration of this logical AND combination of the channels. 1 Press the [More] key in the Trigger section of the front panel, rotate the Entry knob until Duration is displayed in the Trigger softkey, then press the Settings softkey to display the Duration Trigger Menu.
4 Triggering • X sets the pattern to don't care on the selected channel. Any channel set to don't care is ignored and is not used as part of the pattern. If all channels in the pattern are set to don't care, the oscilloscope will not trigger. 4 Press the Qualifier softkey to set the time duration qualifier for the pattern.
4 Triggering When the duration trigger occurs The timer starts on the last edge that makes the pattern (logical AND) true. The trigger will occur on the first edge that makes the pattern false if the time qualifier criteria of the pattern has been met, except in Timeout mode. In Timeout, the trigger occurs when the timeout value is reached while the pattern is true.
4 Triggering Edge Trigger The Edge trigger type identifies a trigger by looking for a specified edge (slope) and voltage level on a waveform. You can define the trigger source and slope in this menu. The slope can be set to rising edge or falling edge, and can be set to alternating edges or either edge on all sources except Line. The trigger type, source, and level are displayed in the upper-right corner of the display.
4 Triggering You can select analog channel 1 or 2, Ext, or Line as the trigger source on any Agilent InfiniiVision oscilloscope. The trigger source can also be set to channel 3 and 4 on the 4-channel oscilloscopes, or digital channels D15 through D0 on the mixed-signal oscilloscopes. You can choose a channel that is turned off (not displayed) as the source for the edge trigger.
4 Triggering FlexRay Setup and Triggering The N5432C FlexRay triggering and decode option (Option FLX) requires a four-channel InfiniiVision Series oscilloscope. Option FLX lets you: • Trigger on FlexRay bus frames, error conditions, or events. • Display decoded FlexRay bus data.
4 Triggering It is important to specify the correct bus because this setting affects CRC error detection. 8 Press Auto Setup to perform the following actions: • Set the selected source channel’s impedance to 50 Ohms. • Set the selected source channel’s probe attenuation to 10:1. • Set the trigger level (on the selected source channel) to -300 mV. • Turns on trigger Noise Reject. • Turns on Serial Decode. • Sets the trigger type to FlexRay.
4 Triggering 5 Press the Frames softkey to access the FlexRay Frame Trigger Menu. 6 Press the Frame ID softkey, and use the Entry knob to select the frame ID value from All or 1 to 2047. 7 Press the Frame Type softkey to select the frame type: • All Frames • Startup Frames • NULL Frames • Sync Frames • Normal Frames • NOT Startup Frames • NOT NULL Frames • NOT Sync Frames 8 Press the Cyc Ct Rep softkey, and use the Entry knob to select the cycle count repetition factor (2, 4, 8, 16, 32, or 64, or All).
4 Triggering Triggering on FlexRay Errors 1 In the front panel Trigger section, press [More]. 2 In the More Trigger Menu, press Trigger; then, select the FlexRay trigger type. 3 Press Settings. 4 In the FlexRay Trigger Menu, press Trigger; then, select Error. 5 Press the Errors softkey; then, select the error type: • All Errors • Header CRC Error — cyclic redundancy check error in the header. • Frame CRC Error — cyclic redundancy check error in the frame.
Triggering 4 4 In the FlexRay Trigger Menu, press Trigger; then, select Event. 5 Press Event; then, select the event type: • Wake-up • TSS - Transmission Start Sequence • BSS - ByteStart Sequence • FES/DTS - Frame End or Dynamic Trailing Sequence 6 Press Auto Setup for Event. This automatically configures oscilloscope settings (as shown on the display) for the selected event trigger.
4 Triggering Glitch or Narrow Pulse Capture A glitch is a rapid change in the waveform that is usually narrow as compared to the waveform. Peak detect mode can be used to more easily view glitches or narrow pulses. In peak detect mode, narrow glitches and sharp edges are displayed more brightly than when in Normal acquire mode, making them easier to see. To characterize the glitch, use the cursors or the automatic measurement capabilities of the oscilloscope.
4 Triggering 15 ns Narrow Pulse, 20 ms/div, Peak Detect Mode Using Peak Detect Mode to Find a Glitch 1 Connect a signal to the oscilloscope and obtain a stable display. 2 To find the glitch, press the [Acquire] key, then, press the Acq Mode softkey until Peak Detect is selected. 3 Press the [Display] key then press the Persist (infinite persistence) softkey. Infinite persistence updates the display with new acquisitions but does not erase previous acquisitions.
4 Triggering 4 Characterize the glitch with Zoom mode: a Press the [Menu/Zoom] key (or [Main/Delayed] key on some oscilloscopes), then press the Zoom softkey. b To obtain a better resolution of the glitch, expand the time base. Use the horizontal position knob ( ) to pan through the waveform to set the expanded portion of the normal sweep around the glitch.
4 Triggering I2C Trigger An I2C (Inter-IC bus) trigger setup consists of connecting the oscilloscope to the serial data (SDA) line and the serial clock (SCL) line, then triggering on a stop/start condition, a restart, a missing acknowledge, an EEPROM data read, or on a read/write frame with a specific device address and data value. 1 Press [Save/Recall]&Default Setup. 2 Press the [Label] key to switch labels on. 3 Turn on any analog or digital channels that you will be using for the I2C signals.
4 Triggering As you press the SCL softkey (or rotate the Entry knob), the SCL label for the source channel is automatically set and the channel you select is shown in the upper-right corner of the display next to “I2C”. 7 Set the trigger levels for the SCL and SDA signals to the middle of the signals: • If your I2C signals are connected to analog channels, press the SCL softkey and rotate the Trigger Level knob, then press the SDA softkey and rotate the Trigger Level knob.
4 Triggering • Stop Condition — The oscilloscope triggers when data (SDA) transitions from low to high while the clock (SCL) is high. SDA SCL Start Address Condition Ack R/ Data Ack Stop Condition • Missing Acknowledge — The oscilloscope triggers when SDA data is high during any Ack SCL clock bit. • Address with no Ack — The oscilloscope triggers when the acknowledge of the selected address field is false. The R/W bit is ignored.
4 Triggering • Frame (Start: Addr7: Read: Ack: Data) or Frame (Start: Addr7: Write: Ack: Data) — The oscilloscope triggers on a read or write frame in 7-bit addressing mode on the 17th clock edge if all bits in the pattern match. For triggering purposes, a restart is treated as a start condition.
4 Triggering For triggering purposes, a restart is treated as a start condition. Write SDA SCL Start or Restart Condition Address 1st byte R/ Ack1 Address Ack2 2nd byte Data Ack Stop Condition Trigger point 26th clock edge 12 If you have set the oscilloscope to trigger on an EEPROM Data Read condition: Press the Data is softkey to set the oscilloscope to trigger when data is = (equal to), (not equal to), < (less than), or > (greater than) the data value set in the Data softkey.
4 Triggering If don't care (0xXX) is selected for data, the data will be ignored. The trigger will always occur on the 17th clock for 7-bit addressing or 26th clock for 10-bit addressing. c If you have selected a three-byte trigger, press the Data2 value softkey and turn the Entry knob to select the 8-bit data pattern on which to trigger. NOTE 120 To display I2C serial decode, see page 310.
4 Triggering I2S Trigger The N5468A (Option SND) I²S trigger and serial decode option adds the ability to decode serial data to 4-channel or 4+16 channel oscilloscopes. To control serial decode press the [Acquire] key. An I2S (Inter-IC Sound or Integrated Interchip Sound) trigger setup consists of connecting the oscilloscope to the serial clock, word select, and serial data lines and then triggering on a data value. 1 Press [Save/Recall]&Default Setup. 2 Press the [Label] key to switch labels on.
4 Triggering 6 Press the Signals softkey to display the I2S Signals Menu. A diagram appears showing WS, SCLK, and SDATA signals for the currently specified bus configuration. Serial clock channel Word Select channel Serial data channel Return to previous menu 7 Connect an oscilloscope channel to the SCLK (serial clock) line in the device under test. (If the channel is not already switched on, switch it on now, and return to this menu by pressing [More]&Settings& Signals.
4 Triggering 10 Set the trigger levels for the SCLK, WS, and SDATA signals to the middle of the signals: • If your I2S signals are connected to analog channels, press the SCLK softkey and rotate the Trigger Level knob (not the Entry knob). Repeat for the WS and SDATA softkeys.
4 Triggering 14 Press the Alignment softkey and rotate the Entry knob to select the desired alignment of the data signal (SDATA). The on-screen diagram changes with your selection. Standard Alignment: MSB of data for each sample is sent first, LSB is sent last. The MSB appears on the SDATA line one bit clock after the edge of the WS transition.
4 Triggering 15 Press the WS Low softkey to select whether WS Low indicates Left or Right channel data. The on-screen diagram changes with your selection. WS Low = Left Channel: Left-channel data corresponds to WS=low; right-channel data corresponds to WS=high. WS Low=Left is the oscilloscope’s default WS setting.
4 Triggering 20 Press the Trigger softkey and choose a qualifier: • Equal — triggers on the specified audio channel’s data word when it equals the specified word. • Not equal — triggers on any word other than the specified word. • Less than — triggers when the channel’s data word is less than the specified value. • Greater than — triggers when the channel’s data word is greater than the specified value. • In Range — enter upper and lower values to specify the range in which to trigger.
Triggering 4 • Decreasing value — similar to the description above except the trigger occurs on a descreasing data word value, and the “Armed” value is the value to which the data must rise in order to re-arm the trigger. 21 Press the Base softkey and select a number base for entering data values: • Binary (2’s complement). When Binary is selected, the Bits softkey appears. This softkey opens the I2S Bits Menu for entering data values.
4 Triggering LIN Trigger LIN (Local Interconnect Network) trigger setup consists of connecting the oscilloscope to a serial LIN signal. LIN triggering will trigger on the rising edge at the Sync Break exit of the LIN single-wire bus signal that marks the beginning of the message frame. If the N5424A CAN/LIN Automotive Triggering and Decode option is installed on your oscilloscope, the Frame ID and Frame ID and Data trigger types are also available.
4 Triggering 5 Press the Signals softkey. The LIN Signals Menu will be displayed. Source Menu Signal baud rate Sample Point Standard Selector Define Sync Break Return to previous menu 6 Press the Source softkey to select the channel connected to the LIN signal line. If you have connected one of the oscilloscope’s analog source channels to the LIN signal: Adjust the trigger level for the selected analog channel to the middle of the waveform by turning the Trigger Level knob.
4 Triggering 10 Press the Sync Break softkey and select the minimum number of clocks that define a sync break in your LIN signal. 11 Press the up-arrow softkey to return to the LIN Trigger Menu. 12 Press the Trigger: softkey and choose the type of trigger: • Sync (Sync Break) — The oscilloscope triggers on the rising edge at the Sync Break exit of the LIN single-wire bus signal that marks the beginning the message frame.
Triggering 4 MIL-STD 1553 Setup and Triggering The N5469A MIL-STD 1553 triggering and decode option (Option 553) requires a four-channel InfiniiVision Series oscilloscope. The MIL-STD 1553 triggering and decode solution supports bi-phase MIL-STD 1553 signaling. the standard 1553 Manchester II encoding, data rate of 1 Mb/s, and word length of 20 bits. Probing MIL-STD 1553 Signals The MIL-STD 1553 differential bus must be probed with a differential active probe.
4 Triggering Setup for MIL-STD 1553 Signals To set up the oscilloscope for MIL-STD 1553 signals: 1 In the front panel Trigger section, press [More]. 2 In the More Trigger Menu, press Trigger; then, select the MIL-1553 trigger type. 3 Press Settings. 4 In the MIL-STD-1553 Trigger Settings Menu: • Upper Ch — selects the channel used for the upper threshold.
4 Triggering MIL-STD 1553 Triggering To set up the oscilloscope to capture MIL-STD 1553 signals, see “Setup for MIL-STD 1553 Signals” on page 132. To set up a MIL-STD 1553 trigger: 1 In the front panel Trigger section, press [More]. 2 In the More Trigger Menu, press Trigger; then, select the MIL-1553 trigger type. 3 Press Settings.
4 Triggering • The Bit Time softkey lets you select the bit time position. • The 0 1 X softkey lets you set the bit time position value as a 1, 0, or X (don't care). • Parity Error – triggers if the (odd) parity bit is incorrect for the data in the word. • Manchester Error – triggers if a Manchester encoding error is detected. • Sync Error – triggers if an invalid Sync pulse is found. NOTE 134 To display MIL-STD-1553 serial decode, see “MIL-STD 1553 Serial Decode” on page 320.
4 Triggering Nth Edge Burst Trigger The Nth Edge Burst trigger lets you trigger on the Nth edge of a burst that occurs after an idle time. Idle Time Trigger Nth Edge Burst trigger set up consists of selecting the source, the slope of the edge, the idle time, and the number of the edge: 1 Press the [More] key in the Trigger section of the front panel, rotate the Entry knob until Nth Edge Burst is displayed in the Trigger softkey. 2 Press the Settings softkey to display the Nth Edge Burst Trigger Menu.
4 Triggering Assign channels Slope of edge Currently selected Clock, Framing, or Data channel Nth Edge Burst trigger Trigger level or threshold Nth edge select Return to previous menu Idle time select 3 Press the Slope softkey to specify the slope of the edge. 4 Press the Idle softkey; then, turn the Entry knob to specify the idle time. 5 Press the Edge softkey; then, turn the Entry knob to which edge to trigger on.
4 Triggering Pattern Trigger The Pattern trigger identifies a trigger condition by looking for a specified pattern. This pattern is a logical AND combination of the channels. Each channel can have a value of 0 (low), 1 (high), or don't care (X). A rising or falling edge can be specified for one channel included in the pattern. You can also trigger on a hex bus value as described on page 139. 1 Press the [Pattern] key in the Trigger section of the front panel to display the PatternTrigger Menu.
4 Triggering • 0 sets the pattern to zero (low) on the selected channel. A low is a voltage level that is less than the channel's trigger level or threshold level. • 1 sets the pattern to 1 (high) on the selected channel. A high is a voltage level that is greater than the channel's trigger level or threshold level. • X sets the pattern to don't care on the selected channel. Any channel set to don't care is ignored and is not used as part of the pattern.
Triggering 4 Hex Bus Pattern Trigger You can specify a bus value on which to trigger. To do this, first define the bus. See “To display digital channels as a bus” on page 381 for details. You can trigger on a bus value whether you are displaying the bus or not. To trigger on a bus value: 1 Press the [Pattern] key on the front panel. 2 Press the Channel softkey and rotate the Entry knob to select Bus1 or Bus2. 3 Press the Digit softkey and rotate the Entry knob to select a digit of the selected bus.
4 Triggering Pulse Width Trigger Pulse Width (glitch) triggering sets the oscilloscope to trigger on a positive or negative pulse of a specified width. If you want to trigger on a specific timeout value, use Duration trigger in the Trigger More Menu (see “Duration Trigger” on page 102). 1 Press the [Pulse Width] key in the Trigger section of the front panel to display the Pulse Width Trigger Menu.
4 Triggering When triggering on a positive pulse, the trigger will occur on the high to low transition of the pulse if the qualifying condition is true. When triggering on a negative pulse, the trigger will occur on the low to high transition of the pulse if the qualifying condition is true. 4 Press the qualifier softkey (< > ><) to select the time qualifier. The Qualifier softkey can set the oscilloscope to trigger on a pulse width that is: • less than a time value (<).
4 Triggering • When the time range (><) qualifier is selected, the Entry knob sets the upper time range value. > qualifier time set softkey • When the greater than (>) qualifier is selected, the Entry knob sets the oscilloscope to trigger on a pulse width greater than the time value displayed on the softkey. • When the time range (><) qualifier is selected, the Entry knob sets the lower time range value.
4 Triggering Sequence Trigger Sequence trigger lets you trigger the oscilloscope after finding a sequence of events. Defining a sequence trigger requires three steps: 1 Define an event to find before you search for the trigger. The “find” event can be a pattern, an edge from a single channel, or the combination of a pattern and a channel edge. 2 Define the trigger event.
4 Triggering Sequence trigger Selected Trigger level channel or threshold Sequence stage definitions Term definitions Channel select Stage select Find, Trigger on, or Reset condition Select term Define term Return to previous menu As you set stage, term, and channel definitions for the sequence trigger, these settings will be shown in the waveform area of the display.
4 Triggering Define the “Find” Stage 1 Press the Stage softkey and select Find:. Find: is the first stage in the trigger sequence. When you select the Stage Find softkey, the next softkey to the right will display Find: and give you a list of the terms you can define for the Find stage. The Find stage can be set to one of the following conditions: • Pattern 1 Entered — A pattern is entered on the last edge that makes the pattern true (logical AND).
4 Triggering 5 If you select an edge term, one channel must be set to a rising edge or a falling edge. All other channel edges will be set to don’t care (X). a Press the Channel softkey (or rotate the Entry knob) to select the channel. As you select a channel, the channel is highlighted in the selected pattern list shown in the waveform area. b Then press the X softkey to select rising edge or falling edge. All other channels will be defaulted to don’t care (X).
4 Triggering 4 If you select a pattern term, each channel in the pattern must be set to a 1 (high), 0 (low), or X (don't care). a Press the Channel softkey (or rotate the Entry knob) to select the channel. b Press the 0 1 X softkey to set a level for the channel. c Repeat for all channels in the pattern. 5 If you select an edge term, one channel must be set to a rising edge or a falling edge. All other channel edges will be set to don’t care (X).
4 Triggering • No Reset — Resets on the find condition. • Pattern 1 (or 2) Entered — A pattern is entered on the last edge that makes the pattern true (logical AND). • Pattern 1 (or 2) Exited — A pattern is exited on the first edge that makes the pattern false (logic NAND). • Edge 1 (or 2) • Pattern 1 and Edge 1 • Timeout Terms that are grayed-out are not valid in the reset stage. 2 Press the Reset: softkey and select a term to reset on.
Triggering 4 Adjust the Trigger Level • For analog channels, adjust the trigger level for the selected analog channel by turning the Trigger Level knob. • To set the threshold level for digital channels, press the [D15-D0] key and select Thresholds. The value of the trigger level or digital threshold is displayed in the upper-right corner of the display.
4 Triggering SPI Trigger Serial Peripheral Interface (SPI) trigger setup consists of connecting the oscilloscope to a clock, data, and framing signal. You can then trigger on a data pattern that occurs at the start of a frame. The serial data string can be specified to be from 4 to 32 bits long. When you press the Settings softkey, a graphic will be displayed showing the current state of the frame signal, clock slope, number of data bits, and data bit values.
4 Triggering Currently selected Clock, Framing, or Data channel SPI trigger Trigger level or threshold Graphic showing current state of the SPI trigger setup Data string values Assign channels # data bits in string Data bit select Data bit value Set all data bits to value Return to previous menu Assign Oscilloscope Channels to SPI Signals This explains how to assign oscilloscope channesl to the SPI clock, data, and frame signals.
4 Triggering 6 Press the Clock softkey or turn the Entry knob to select the channel connected to the SPI serial clock line. As you press the Clock softkey (or rotate the Entry knob), the CLK label for the source channel is automatically set and the channel you select is shown in the upper-right corner of the display next to “SPI”.
4 Triggering Labels automatically set for clock, data, and chip select signals Graphic showing current state of SPI trigger clock slope and chip select polarity or timeout selection 8 Press the Data softkey or turn the Entry knob to select the channel that is connected to the SPI serial data line. (If the channel you selected is off, switch it on.
4 Triggering • If the framing signal is set to CS (or ~CS), the first clock edge as defined, rising or falling, seen after the CS (or ~CS) signal transitions from low to high (or high to low) is the first clock in the serial stream. Chip Select — Press the CS or ~CS softkey or turn the Entry knob to select the channel that is connected to the SPI frame line. The label (~CS or CS) for the source channel is automatically set.
Triggering 4 Set Up the Bits in the Serial Data String This explains how to set up the number of bits in the serial data string and set values for those data bits 1 Press the #Bits softkey, and turn the Entry knob to set the number of bits (#Bits) in the serial data string. The number of bits in the string can be set anywhere from 4 bits to 32 bits. The data values for the serial string are displayed in the Data string in the waveform area.
4 Triggering TV Trigger TV triggering can be used to capture the complicated waveforms of most standard and high-definition analog video signals. The trigger circuitry detects the vertical and horizontal interval of the waveform and produces triggers based on the TV trigger settings you have selected. The oscilloscope’s MegaZoom III technology gives you bright, easily viewed displays of any part of the video waveform.
Triggering TV trigger Source channel Sync polarity TV Standard TV mode Selected channel Line # 4 TV Mode Return to previous menu 2 Press the Source softkey and select any analog channel as the TV trigger source. The selected trigger source is displayed in the upper-right corner of the display. Turning the Trigger Level knob does not change the trigger level because the trigger level is automatically set to the sync pulse.
4 Triggering 4 Press the Standard softkey to set the TV standard. The oscilloscope supports triggering on the following television (TV) and video standards.
Triggering 4 6 If you select a line # mode, press the Line # softkey, then rotate the Entry knob to select the line number on which you want to trigger. 7 When using the Generic standard and you select a line # mode or Count:Vertical, press the Count # softkey and rotate the Entry knob to select the desired count number. Listed below are the line (or count) numbers per field for each non-HDTV/EDTV video standard.
4 Triggering To trigger on a specific line of video TV triggering requires greater than 1/2 division of sync amplitude with any analog channel as the trigger source. Turning the trigger Level knob in TV trigger does not change the trigger level because the trigger level is automatically set to the sync pulse tips. One example of triggering on a specific line of video is looking at the vertical interval test signals (VITS), which are typically in line 18.
Triggering 4 To trigger on all sync pulses To quickly find maximum video levels, you could trigger on all sync pulses. When All Lines is selected as the TV trigger mode, the oscilloscope will trigger on all horizontal sync pulses. 1 Press the Trigger [More] key, then press the TV softkey. 2 Press the Settings softkey, then press the Standard softkey to select the appropriate TV standard. 3 Press the Mode softkey and select All Lines.
4 Triggering 3 Press the Mode softkey and select Field1 or Field2. TRIGGERING ON FIELD 1 To trigger on all fields of the video signal To quickly and easily view transitions between fields, or to find the amplitude differences between the fields, use the All Fields trigger mode. 1 Press the Trigger [More] key, then press the TV softkey. 2 Press the Settings softkey, then press the Standard softkey to select the appropriate TV standard. 3 Press the Mode softkey and select All Fields.
Triggering 4 TRIGGERING ON ALL FIELDS To trigger on odd or even fields To check the envelope of your video signals, or to measure worst case distortion, trigger on the odd or even fields. When Field 1 is selected, the oscilloscope triggers on color fields 1 or 3. When Field 2 is selected, the oscilloscope triggers on color fields 2 or 4. 1 Press the Trigger [More] key, then press the TV softkey. 2 Press the Settings softkey, then press the Standard softkey to select the appropriate TV standard.
4 Triggering TRIGGERING ON COLOR FIELD 1 ALTERNATING WITH COLOR FIELD 3 If a more detailed analysis is required, then only one color field should be selected to be the trigger. You can do this by using the TV Holdoff softkey in the trigger More Trigger Menu when the trigger type is set to TV. Press the TV Holdoff softkey and use the Entry knob to adjust the holdoff in half-field increments until the oscilloscope triggers on only one phase of the color burst.
Triggering 4 HALF-FIELD HOLDOFF TIME Standard Time NTSC 8.35 ms PAL 10 ms PAL-M 10 ms SECAM 10 ms Generic 8.35 ms EDTV 480p/60 8.35 ms HDTV 720p/60 8.35 ms HDTV 1080p/24 20.835 ms HDTV 1080p/25 20 ms HDTV 1080i/50 10 ms HDTV 1080i/60 8.
4 Triggering UART/RS232 Trigger To trigger on a UART (Universal Asynchronous Receiver/Transmitter) signal connect the oscilloscope to the Rx and Tx lines and set up a trigger condition. RS232 (Recommended Standard 232) is one example of a UART protocol. 1 Press [Save/Recall]&Default Setup. 2 Press the [Label] key to switch labels on. 3 Turn on any analog or digital channels that you will be using for the UART/RS232 signals. 4 Press the [More] key in the Trigger section of the front panel.
4 Triggering 6 Press the Signals softkey to display the UART/RS232 Signals Menu. Rx channel Tx channel Return to previous menu 7 Connect an oscilloscope channel to the Rx signal in the device under test, then press the Rx softkey and rotate the Entry knob to select the channel. As you press the Rx softkey (or rotate the Entry knob), the channel you select is shown in the upper-right corner of the display next to “URT”.
4 Triggering 12 Press the up arrow softkey to return to the previous menu. 13 Press the Base softkey to select Hex or ASCII as the base displayed on the Data softkey in the UART/RS232 Trigger Setup Menu. Note that the setting of this softkey does not affect the selected base of the decode display. 14 Press the Trigger Setup softkey and set up the desired trigger condition: • Rx Start Bit — The oscilloscope triggers when a start bit occurs on Rx. • Rx Stop Bit — Triggers when a stop bit occurs on Rx.
Triggering 4 18 If Burst is selected, an idle time (1 s to 10 s) can be specified so that the oscilloscope will look for a trigger condition only after the idle time has past. Press the Idle softkey and rotate the Entry knob to set an idle time. 19 Remember to set the trigger mode to Normal (press [Mode/Coupling]&Mode&Normal) to prevent Auto Triggering. NOTE To display UART/RS232 serial decode, see page 329.
4 Triggering USB Trigger USB trigger will trigger on a Start of Packet (SOP), End of Packet (EOP) signal, Reset Complete (RC), Enter Suspend (Suspend), or Exit Suspend (Exit Sus) on the differential USB data lines (D+ and D-). USB Low Speed and Full Speed are supported by this trigger. End of packet trigger D+,– Bus Idle D–,+ SOP SE0 portion of EOP 1 Press [Save/Recall]&Default Setup. 2 Press the [Label] key to switch labels on.
4 Triggering As you press the D+ or D– softkey (or rotate the Entry knob), the D+ and D– label for the source channel is automatically set and the channel you select is shown in the upper-right corner of the display next to “USB”. If you have connected the oscilloscope’s analog source channels to the D+ and Dsignals: Adjust the trigger level for each connected analog channel to the middle of the waveform by pressing the D+ or D- softkey, then turning the Trigger Level knob.
4 172 Triggering InfiniiVision Oscilloscopes User’s Guide
Agilent InfiniiVision 5000/6000/7000 Series Oscilloscope User’s Guide 5 Displaying Tips for Displaying Waveforms 174 Stabilizing the Display 174 Interpreting the Display 175 Graphic Symbols in Softkey Menus 176 AutoScale 177 Pan and Zoom 179 Waveform Intensity and Signal Detail 180 Grid Intensity 181 Infinite Persistence 182 Using Labels 183 Waveform Expansion Reference Point 187 Vectors (Connect the Dots) 187 Freeze Display 188 Antialiasing 189 XGA Video Output 189 The topics in this chapter pertain to a
5 Displaying Tips for Displaying Waveforms The easiest way to display waveforms is to connect the probes to the signals and press [AutoScale]. When selecting a particular trigger type, it is helpful to consider whether to use Auto or Normal trigger mode. See “Auto and Normal Trigger modes” on page 84.
5 Displaying Interpreting the Display The oscilloscope display contains acquired waveforms, setup information, measurement results, and the softkey definitions.
5 Displaying Graphic Symbols in Softkey Menus Softkeys are the six keys directly below the display. The are called Softkeys because software determines the function assigned to each key in any given menu. The following graphic symbols appear in the oscilloscope’s softkey menus. The softkey menus appear at the bottom of the display, just above the six softkeys. Rotate the Entry knob to adjust the parameter. The Entry knob is located on the front panel.
5 Displaying AutoScale Press the [AutoScale] key to quickly display the input signals. How AutoScale works AutoScale automatically configures the oscilloscope to best display the input signals by analyzing any waveforms present at each channel and at the external trigger input. This includes the digital channels on MSO models. AutoScale finds, turns on, and scales any channel with a repetitive waveform that has a frequency of at least 50 Hz, a duty cycle greater than 0.
5 Displaying Enabling Fast Debug AutoScale The Fast Debug option changes the behavior of [AutoScale] to let you make quick visual comparisons to determine whether the signal being probed is a DC voltage, ground, or an active AC signal. Channel coupling is maintained for easy viewing of oscillating signals. 1 Press [Utility] > Options > Preferences > AutoScale. 2 In the AutoScale Preferences Menu, press Fast Debug to enable or disable the option.
5 Displaying Pan and Zoom The ability to pan (move horizontally) and zoom (expand or compress horizontally) an acquired waveform is important because of the additional insight it can reveal about the captured waveform. This additional insight is often gained from seeing the waveform at different levels of abstraction. You may want to view both the big picture and the specific little picture details.
5 Displaying 3 Turn the Horizontal Position (Delay Time) knob ( ) to pan horizontally and turn the channel’s vertical position knob ( ) to pan vertically. The stopped display may contain several triggers worth of information, but only the last trigger acquisition is available for pan and zoom. Waveform Intensity and Signal Detail The Intensity knob lets you adjust the displayed waveforms to account for various signal characteristics, such as fast sweep speeds and low trigger rates.
5 Displaying Amplitude Modulation with Noise Shown at 40% Intensity Grid Intensity To adjust the grid (graticule) intensity, press [Display]&Grid and use the Entry knob to adjust the intensity. To adjust the display grid (graticule) intensity 1 Press the [Display] key. 2 Turn the Entry knob to change the intensity of the displayed grid. The intensity level is shown in the Grid softkey and is adjustable from 0 to 100%.
5 Displaying Infinite Persistence With infinite persistence, the oscilloscope updates the display with new acquisitions, but does not erase the results of previous acquisitions. All previous acquisitions are displayed in gray with reduced intensity. New acquisitions are shown in their normal color with normal intensity. Waveform persistence is kept only for the current display area; you cannot pan and zoom the infinite persistence display.
Displaying 5 Using Labels You can define labels and assign them to each analog input channel, or you can turn labels off to increase the waveform display area. Labels can also be applied to digital channels on MSO models. To turn the label display on or off 1 Press the [Label] key on the front panel. This turns on display labels for the analog and digital channels. When the [Label] key is illuminated, the labels for displayed channels are displayed at the left edge of the displayed traces.
5 Displaying To assign a predefined label to a channel 1 Press the [Label] key. 2 Press the Channel softkey, then turn the Entry knob or successively press the Channel softkey to select a channel for label assignment. The figure above shows the list of channels and their default labels. The channel does not have to be turned on to have a label assigned to it. 3 Press the Library softkey, then turn the Entry knob or successively press the Library softkey to select a predefined label from the library.
Displaying 5 The channel does not have to be turned on to have a label assigned to it. If the channel is turned on, its current label will be highlighted. 3 Press the Spell softkey, then turn the Entry knob to select the first character in the new label. Turning the Entry knob selects a character to enter into the highlighted position shown in the “New label =” line above the softkeys and in the Spell softkey. Labels can be up to ten characters in length.
5 Displaying To load labels from a text file into the oscilloscope: 1 Use a text editor to create each label. Each label can be up to ten characters in length. Separate each label with a line feed. 2 Name the file labellist.txt and save it on a USB mass storage device such as a thumb drive. 3 Load the list into the oscilloscope using the File Explorer (press [Utility]& File Explorer). Label List Management When you press the Library softkey, you will see a list of the last 75 labels used.
5 Displaying This will delete all user-defined labels from the library and set the labels in the library back to the factory default. However, this does not default the labels currently assigned to the channels (those labels that appear in the waveform area). Defaulting labels without erasing the default library. Selecting Default Setup in the Save/Recall Menu will set all channel labels back to the default labels but does not erase the list of user-defined labels in the library.
5 Displaying The oscilloscope turns vectors on whenever the acquisition system stops. Digital channels on the mixed-signal oscilloscope are not affected by the Display Menu. They are always displayed with vectors on. They also only contain one trigger worth of information. Using Vectors (Display Menu) One of the most fundamental choices you must make about your display is whether to draw vectors (connect the dots) between the samples, or simply let the samples fill in the waveform.
Displaying 5 Antialiasing At slower sweep speeds, the sample rate is reduced and a proprietary display algorithm is used to minimize the likelihood of aliasing. By default, Antialiasing is enabled. You should leave Antialiasing enabled unless there is a specific reason to switch it off. If you need to switch Antialiasing off, press [Utility]&Options&Preferences and press the Antialiasing softkey to switch the feature off. The displayed waveforms will be more susceptible to aliasing.
5 190 Displaying InfiniiVision Oscilloscopes User’s Guide
Agilent InfiniiVision 5000/6000/7000 Series Oscilloscope User’s Guide 6 Measurements and Math Functions List of Automatic Measurements 192 Making Automatic Measurements 193 Measurement Statistics 194 Measurement Thresholds 197 Measurement Definitions 199 Time Measurements 199 Delay and Phase Measurements 203 Voltage Measurements 205 Overshoot and Preshoot Measurements 211 Cursor Measurements 214 XY Horizontal Mode 220 Math Functions 224 Multiply 227 Add or Subtract 228 Differentiate 230 Integrate 232 Squar
6 Measurements and Math Functions List of Automatic Measurements You can press the [Quick Meas] key and select an automatic measurement. Follow the link or go to the page for details. Time Measurements • • • • • • • • • • “Counter” on page 199. “Duty Cycle” on page 200. “Frequency” on page 200. “Period” on page 201. “Rise Time” on page 201. “Fall Time” on page 201. “+ Width” on page 202. “– Width” on page 202. “X at Max Y” on page 202. “X at Min Y” on page 202. Phase and Delay • “Phase” on page 204.
6 Measurements and Math Functions Preshoot and Overshoot • “Preshoot” on page 211. • “Overshoot” on page 212. Making Automatic Measurements [Quick Meas] makes automatic measurements on a channel or any running math function. Some measurements can only be made on analog source channels (see list on page 194). The results of the last four selected measurements are displayed above the softkeys, or in the display area when certain menus are selected.
6 Measurements and Math Functions 3 Press the Select softkey then rotate the Entry knob to select a measurement to be made. 4 The Settings softkey will be available to make additional measurement settings on some measurements. 5 Press the Measure softkey to make the measurement. (By default, measurement statistics are displayed. See page 194.) 6 To turn off Quick Meas, press the [Quick Meas] key again. The key will no longer be illuminated and the measurements will be erased from the display.
Measurements and Math Functions 6 Source channel (color coded) The following statistics are shown: Name of the measurement, current measured value, mean, minimum measured value, maximum measured value, standard deviation, and the number of times the measurement has been made (count). Statistics are based on the total number of captured waveforms (count). The standard deviation shown in Statistics is calculated using the same formula used for calculating the standard deviation Quick Measurement.
6 Measurements and Math Functions To reset the statistics measurements, press the Reset Statistics softkey. This resets all statistics and begins recording statistical data again. Each time a new measurement (for example: frequency, period, or amplitude) is added the statistics are reset and accumulation of statistical data begins again. When the [Single] key is pressed, statistics are reset and a single measurement is done (count = 1).
6 Measurements and Math Functions Measurement Thresholds Setting measurement thresholds defines the vertical levels where measurements will be taken on an analog channel or math waveform. Changing default thresholds may change measurement results The default lower, middle, and upper threshold values are 10%, 50%, and 90% of the value between Top and Base.
6 Measurements and Math Functions Increasing the lower value beyond the set middle value will automatically increase the middle value to be more than the lower value. The default lower threshold is 10% or 800 mV. If threshold Type is set to %, the lower threshold value can be set from 5% to 93%. 5 Press the Middle softkey, then turn the Entry knob to set the middle measurement threshold value. The middle value is bounded by the values set for lower and upper thresholds.
6 Measurements and Math Functions Measurement Definitions Time Measurements FFT measurements When you make an X at Max Y or X at Min Y measurement on a math FFT function, the resultant units will be in Hertz. No other time related automatic measurement can be made on the FFT math function. Use the cursors to make other measurements on FFT. The default lower, middle, and upper measurement thresholds are 10%, 50%, and 90% between Top and Base values.
6 Measurements and Math Functions The measured frequency is normally displayed in 5 digits, but can be displayed in 8 digits when an external 10 MHz frequency reference is provided at the 10 MHz REF rear panel BNC and the gate time is 1 second (50 ms/div sweep speed or greater). See (“To supply a sample clock to the oscilloscope” on page 406.) The hardware counter uses the trigger comparator output. Therefore, the counted channel’s trigger level (or threshold for digital channels) must be set correctly.
Measurements and Math Functions 6 ISOLATING AN EVENT FOR FREQUENCY MEASUREMENT Period Period is the time period of the complete waveform cycle. The time is measured between the middle threshold points of two consecutive, like-polarity edges. A middle threshold crossing must also travel through the lower and upper threshold levels which eliminates runt pulses. The X cursors show what portion of the waveform is being measured. The Y cursor shows the middle threshold point.
6 Measurements and Math Functions + Width + Width is the time from the middle threshold of the rising edge to the middle threshold of the next falling edge. The X cursors show the pulse being measured. The Y cursor shows the middle threshold point. – Width – Width is the time from the middle threshold of the falling edge to the middle threshold of the next rising edge. The X cursors show the pulse being measured. The Y cursor shows the middle threshold point.
Measurements and Math Functions 6 Delay and Phase Measurements Digital channel measurements Automatic measurements Phase, and Delay are not valid for digital channels on the mixed-signal oscilloscope or for the math FFT function. The two sources defined in the phase and delay measurement must be turned on. Delay Delay measures the time difference from the selected edge on source 1 and the selected edge on source 2 closest to the trigger reference point at the middle threshold points on the waveforms.
6 Measurements and Math Functions The example below shows a delay measurement between the rising edge of channel 1 and the rising edge of channel 2. Phase Phase is the calculated phase shift from source 1 to source 2, expressed in degrees. Negative phase shift values indicate that the rising edge of source 1 occurred after the rising edge of source 2.
6 Measurements and Math Functions The example below shows a phase measurement between the channel 1 and the math d/dt function on channel 1. Voltage Measurements Measurement units for each input channel can be set to Volts or Amps using the channel Probe Units softkey. A scale unit of U (undefined) will be displayed for math function 1-2 and for d/dt, and dt when 1-2 or 1+2 is the selected source if channel 1 and channel 2 are set to dissimilar units in the channel Probe Units softkey.
6 Measurements and Math Functions Math Measurements and Units Only Peak-Peak, Maximum, Minimum, Average, X at Min Y, and X at Max Y automatic measurements may be made on a math FFT function. See “Making time measurements automatically” for the FFT X at Max Y and X at Min Y measurement. Use the cursors to make other measurements on FFT. All voltage measurements may be made on other math functions.
6 Measurements and Math Functions Average Average is the sum of the waveform samples divided by the number of samples. xi Average = --------n where xi = value at ith point being measured n = number of points in measurement interval Which samples are measured depends on the Interval setting: • N Cycles — the average value is measured on an integral number of periods of the displayed signal. If less than three edges are present, the measurement shows “No edges”.
6 Measurements and Math Functions Peak-Peak The peak-to-peak value is the difference between Maximum and Minimum values. The Y cursors show the values being measured. Ratio The Ratio measurement displays the ratio of the AC RMS voltages of two sources, expressed in dB. Press the Settings softkey to select the source channels for the measurement. RMS RMS (DC) is the root-mean-square value of the waveform.
Measurements and Math Functions 6 The following figure graphically shows the mean and standard deviation. Standard deviation is represented by the Greek letter sigma: . For a Gaussian distribution, two sigma (± 1) from the mean, is where 68.3 percent of the measurement results reside. Six sigma (± 3) from is where 99.7 percent of the measurement results reside. mean -3s -2s -1s 0 1s 2s 3s 68.3% 95.4% 99.7% The mean is calculated as follows: N xi =1 x = i------------N where: x = the mean.
6 Measurements and Math Functions where: = the standard deviation. N = the number of measurements taken. xi = the ith measurement result. x = the mean. Top The Top of a waveform is the mode (most common value) of the upper part of the waveform, or if the mode is not well defined, the top is the same as Maximum. The Y cursor shows the value being measured. To isolate a pulse for Top measurement The following figure shows how to use Zoom mode to isolate a pulse for a Top measurement.
Measurements and Math Functions 6 Overshoot and Preshoot Measurements Digital channel time measurements Automatic measurements Preshoot and Overshoot are not valid measurements for the math FFT function or for digital channels on the mixed-signal oscilloscope. Preshoot Preshoot is distortion that precedes a major edge transition expressed as a percentage of Amplitude. The X cursors show which edge is being measured (edge closest to the trigger reference point).
6 Measurements and Math Functions Overshoot Overshoot is distortion that follows a major edge transition expressed as a percentage of Amplitude. The X cursors show which edge is being measured (edge closest to the trigger reference point).
Measurements and Math Functions 6 Post Acquisition Processing In addition to changing display parameters after the acquisition, you can perform all of the measurements and math functions after the acquisition. Measurements and math functions will be recalculated as you pan and zoom and turn channels on and off. As you zoom in and out on a signal using the horizontal sweep speed knob and vertical volts/division knob, you affect the resolution of the display.
6 Measurements and Math Functions Cursor Measurements Cursors are horizontal and vertical markers that indicate X-axis values (usually time) and Y-axis values (usually voltage) on a selected waveform source. You can use cursors to make custom voltage or time measurements on oscilloscope signals, and timing measurements on digital channels. Cursor information is displayed on the line above the softkeys. Cursors are not always limited to the visible display.
6 Measurements and Math Functions To make cursor measurements NOTE If you intend to make cursor measurements on a trace that you recall from memory, be sure to recall both setup and trace. See “To recall waveform trace and/or oscilloscope setup” on page 256. 1 Connect a signal to the oscilloscope and obtain a stable display. 2 Press the [Cursors] key. The key will illuminate, indicating that cursors are “on”. (Press the key again when you want to turn cursors off.
6 Measurements and Math Functions Manual and Track Waveform modes can be used on waveforms that are displayed on the analog input channels (including math functions). Binary and Hex modes apply to digital signals (of MSO oscilloscope models). In Hex and Binary modes, a level can be displayed as 1 (higher than trigger level), 0 (lower than trigger level), indeterminate state ( ), or X (don't care). In Binary mode, X is displayed if the channel is turned off.
Measurements and Math Functions 6 Cursor Examples CURSORS USED TO MEASURE PULSE WIDTHS OTHER THAN MIDDLE THRESHOLD POINTS CURSORS MEASURE FREQUENCY OF PULSE RINGING InfiniiVision Oscilloscopes User’s Guide 217
6 Measurements and Math Functions Expand the display with Zoom mode, then characterize the event of interest with the cursors. CURSORS TRACK ZOOM SWEEP Put the X1 cursor on one side of a pulse and the X2 cursor on the other side of the pulse.
Measurements and Math Functions 6 Press the X1 X2 softkey and move the cursors together to check for pulse width variations in a pulse train.
6 Measurements and Math Functions XY Horizontal Mode The XY horizontal mode converts the oscilloscope from a volts-versus-time display to a volts-versus-volts display using two input channels. Channel 1 is the X-axis input, channel 2 is the Y-axis input. You can use various transducers so the display could show strain versus displacement, flow versus pressure, volts versus current, or voltage versus frequency.
Measurements and Math Functions 6 SIGNAL CENTERED ON THE DISPLAY 4 Press the [Cursors] key. 5 Set the Y2 cursor to the top of the signal, and set Y1 to the bottom of the signal. Note the Y value at the bottom of the display. In this example, we are using the Y cursors, but you could have used the X cursors instead.
6 Measurements and Math Functions 6 Move the Y1 and Y2 cursors to the intersection of the signal and the Y axis. Again, note the Y value. CURSORS SET TO CENTER OF SIGNAL 7 Calculate the phase difference using the formula below. second Y 1.031 sin = -------------------------- = ------------- ; = 37.65 degrees of phase shift first Y 1.688 Z-Axis Input in XY Display Mode (Blanking) When you select the XY display mode, the time base is turned off.
Measurements and Math Functions 6 SIGNALS ARE 90 OUT OF PHASE SIGNALS ARE IN PHASE InfiniiVision Oscilloscopes User’s Guide 223
6 Measurements and Math Functions Math Functions Math functions can be performed on analog channels. The resulting math waveform is displayed in light purple. You can use a math function on a channel even if you choose not to display the channel on-screen. You can: • Perform an arithmetic operation (add, subtract, or multiply) on channels 1 and 2 or on channels 3 and 4. • Perform a function (differentiate, integrate, FFT, or square root) on the signal acquired on an analog channel.
6 Measurements and Math Functions To perform a math function upon an arithmetic operation To perform a function (differentiate, integrate, FFT, or square root) on an arithmetic operation (add, subtract, or multiply): 1 Press the Function softkey and select g(t): Internal. 2 Use the Operator, Source 1, and Source 2 softkeys to set up an arithmetic operation. 3 Press the Function softkey and select f(t): Displayed.
6 Measurements and Math Functions Units Units for each input channel can be set to Volts or Amps using the Units softkey in the channel’s Probe Menu.
6 Measurements and Math Functions Multiply When you select the multiply math function, the voltage values of the channel chosen in Source 1 are multiplied point by point by the voltage values of the channel chosen in Source 2, and the result is displayed. Multiply is useful for seeing power relationships when one of the channels is proportional to the current.
6 Measurements and Math Functions Add or Subtract When you select add or subtract, the Source 1 and Source 2 channel voltage values are added or subtracted point by point, and the result is displayed. You can use subtract to make a differential measurement or to compare two waveforms. If your waveforms’ DC offsets are larger than the dynamic range of the oscilloscope's input channels you will need to use a differential probe instead.
Measurements and Math Functions 6 EXAMPLE OF SUBTRACT Channel 1 Channel 2 1 – 2 waveform Displayed Subtraction operator function selected InfiniiVision Oscilloscopes User’s Guide First operand Second operand Math waveform scale Math waveform offset 229
6 Measurements and Math Functions Differentiate d/dt (differentiate) calculates the discrete time derivative of the selected source. You can use differentiate to measure the instantaneous slope of a waveform. For example, the slew rate of an operational amplifier may be measured using the differentiate function. Because differentiation is very sensitive to noise, it is helpful to set acquisition mode to Averaging in the Acquire Menu.
6 Measurements and Math Functions EXAMPLE OF DIFFERENTIATE FUNCTION d/dt waveform Channel 1 Displayed Differentiate operator function selected InfiniiVision Oscilloscopes User’s Guide Source Math waveform scale Math waveform offset 231
6 Measurements and Math Functions Integrate dt (integrate) calculates the integral of the selected source. You can use integrate to calculate the energy of a pulse in volt-seconds or measure the area under a waveform. dt plots the integral of the source using the “Trapezoidal Rule”.
Measurements and Math Functions 6 INTEGRATE AND SIGNAL OFFSET Channel 1 0V dt waveform Channel 1 0V dt waveform Displayed Integrate function operator selected InfiniiVision Oscilloscopes User’s Guide Source Math Math waveform waveform scale offset 233
6 Measurements and Math Functions Square Root Square root () calculates the square root of the selected source. 1 Press the [Math] key, press the press the Function softkey and select f(t), press the Operator softkey and select (square root). Press the Source 1, Scale, or Offset sofkeys if you want to change the source, scaling, or offset for the square root function. • Source 1 — selects the source for (square root). (See page 225 for information about using g(t) as the source.
Measurements and Math Functions 6 EXAMPLE OF (SQUARE ROOT).
6 Measurements and Math Functions FFT Measurement FFT is used to compute the fast Fourier transform using analog input channels or an arithmetic operation g(t). FFT takes the digitized time record of the specified source and transforms it to the frequency domain. When the FFT function is selected, the FFT spectrum is plotted on the oscilloscope display as magnitude in dBV versus frequency.
Measurements and Math Functions 6 The following figure illustrates aliasing. This is the spectrum of a 990 Hz square wave, which has many harmonics. The FFT sample rate is set to 100 kSa/s, and the oscilloscope displays the spectrum. The displayed waveform shows the components of the input signal above the Nyquist frequency to be mirrored (aliased) on the display and reflected off the right edge.
6 Measurements and Math Functions FFT Operation 1 Press the [Math] key, press the Function softkey and select f(t), press the Operator softkey and select FFT. Sample rate Displayed function selected Preset Span and Center frequencies Source select Vertical and Window FFT controls • Source 1 — selects the source for the FFT. (See page 225 for information about using g(t) as the source.
6 Measurements and Math Functions • Rectangular — good frequency resolution and amplitude accuracy, but use only where there will be no leakage effects. Use on self-windowing waveforms such as pseudo-random noise, impulses, sine bursts, and decaying sinusoids. • Blackman Harris — window reduces time resolution compared to a rectangular window, but improves the capacity to detect smaller impulses due to lower secondary lobes.
6 Measurements and Math Functions You can make peak-to-peak, maximum, minimum, and average dB measurements on the FFT waveform. You can also find the frequency value at the first occurrence of the waveform maximum by using the X at Max Y measurement. The following FFT spectrum was obtained by connecting the front panel Probe Comp signal (approximately 1.2 kHz square wave) to channel 1. Set sweep speed to 5 ms/div, vertical sensitivity to 500 mV/div, Units/div to 10 dBV, Offset to -34.
6 Measurements and Math Functions number of points in the FFT. The actual resolution of the display will not be this fine as the shape of the window will be the actual limiting factor in the FFTs ability to resolve two closely space frequencies. A good way to test the ability of the FFT to resolve two closely spaced frequencies is to examine the sidebands of an amplitude modulated sine wave. For the best vertical accuracy on peak measurements: • Make sure the probe attenuation is set correctly.
6 Measurements and Math Functions Enabling Precision Measurements and Math Normally, after pressing [Save/Recall] > Default Setup, the oscilloscope performs measurements and generates math waveforms using a 1000-point (maximum) measurement record. This measurement record is purposely small in order to provide high waveform update rates and minimal “dead time” between acquisitions to improve the probability of capturing infrequent events.
Agilent InfiniiVision 5000/6000/7000 Series Oscilloscope User’s Guide 7 Printing and Saving Printing the Oscilloscope’s Display 244 Quick Print 244 To print the oscilloscope’s display 245 Options 245 Palette 246 Saving Oscilloscope Data 247 Selecting a Destination for Your Saved Data 248 Selecting a File Name 249 Saving Waveform Trace and Oscilloscope Setup 250 Display Image and Waveform Data File Formats 250 Choosing Save Settings 251 To save a waveform and/or setup to a USB mass storage device 255 To sav
7 Printing and Saving Printing the Oscilloscope’s Display You can print the complete display, including the status line and softkeys, to a USB printer. The Print Configuration Menu is displayed when you press the [Print] key. The print option softkeys and the Press to Print softkey are ghosted (not available) until a printer is connected.
7 Printing and Saving To print the oscilloscope’s display 1 Connect a USB printer to either the USB port on the front panel or the rectangular USB host port on the rear panel. For the most up-to-date listing of printers that are compatible with the InfiniiVision 5000/6000/7000 Series oscilloscopes, please visit www.agilent.com/find/InfiniiVision-printers. 2 Press the [Print] key on the front panel. 3 Press the Press to Print softkey. You can stop printing by pressing the Cancel Print softkey.
7 Printing and Saving • Form Feed — The Form Feed option can be selected to send a form feed command to the printer after the waveform is printed and before the setup information is printed. Switch Form Feed off if you want setup information printed on the same sheet of paper with the waveform. This option only has an effect when the Setup Information option is selected.
7 Printing and Saving Saving Oscilloscope Data Here are a few points about saving oscilloscope data: • You can save a waveform trace and recall it later. The recalled trace appears in cyan (blue). • You can save oscilloscope setup parameters and recall them later. The setup file stores settings such as horizontal timebase, vertical sensitivity, trigger mode, trigger level, measurements, cursors, and math functions.
7 Printing and Saving Selecting a Destination for Your Saved Data Press [Save/Recall]&Save to access the Save Menu and select a destination for saving your data. Press to go/Location/Save to softkey (Using the oscilloscope’s File Explorer) The second softkey from the left in the Save Menu is the file explorer softkey. If no USB mass storage device is connected to the oscilloscope, you will only be able to save Trace and Setup files to the oscilloscope’s internal memory.
7 Printing and Saving If one or more USB mass storage devices are connected to the oscilloscope, you can navigate to the USB device using the same method. The following display image shows an image ready to be saved to a subfolder called “Rise time” on a USB mass storage device. Push the Entry knob to save the image. Selecting a File Name Overwriting a file You can choose to overwrite an existing file name by browsing to that file and selecting it, then choosing Press to Save.
7 Printing and Saving 4 You can press the Delete Character softkey to delete the current character and shift the rest of the characters to the left. 5 When you select the Auto Increment option, the oscilloscope will add a numeric suffix to your file name, and increment the number with each successive save. It will truncate characters as necessary when the file name length is at maximum and more digits are required for the numeric portion of the file name.
7 Printing and Saving • ASCII XY data file— This creates a file of comma-separated variables for each displayed channel (including serial decode waveforms). If the oscilloscope acquisition is stopped, then data records greater than 1000 points can be written. This format is also suitable for spreadsheets. • BIN data file — This creates a binary file with a header, and data in the form of time and voltage pairs. This file is much smaller than the ASCII XY data file.
7 Printing and Saving The Invert Graticule Colors option can be used to reduce the amount of black ink it takes to print oscilloscope images by changing the black background to white. Invert Graticule Colors is the default mode. Invert Graticule Colors is available when the BMP and PNG formats are selected. Graticule Not Inverted Graticule Inverted Palette Press the Palette softkey to change the following options. The Palette options are available when the BMP and PNG formats are selected.
7 Printing and Saving The length control has no effect on the amount of Serial Decode data saved; all serial decode data will be output. The Length control will perform a “1 of n” decimation of the data when necessary. For example: if the Length is set to 1000, and you are displaying a record that is 5000 data points in length, four of each five data points will be decimated, creating an output file 1000 data points in length. However, if serial decode is on, no decimation will occur.
7 Printing and Saving Format (ALB data file format settings in Save Menu) You can acquire data from the oscilloscope in ALB format, then analyze it offline (on a PC) using the Agilent B4610A Data Import Tool for Offline Viewing and Analysis. See Agilent publication number 5989-7834EN at www.Agilent.com. When you choose any ALB format other than Default, waveforms from the analog channels (if displayed) are also digitized and displayed as digital waveforms.
7 Printing and Saving RECOMMENDED SIGNAL MAPPING Label Signal Scope Channel Maps to Logic Analyzer Channel TxRS232 Tx Ch1 D0 RxRS232 Rx Ch2 D1 I2C Data Ch1 D0 I2C Clk Ch2 D1 SPI2 (2-wire) Clk Ch1 D0 SPI2 Data Ch2 D1 SPI3 (3-wire) ~Chip Select Ch1 D0 SPI3 Clk Ch2 D1 SPI3 Data Ch3 D2 SPI4 (4-wire) ~Chip Select Ch1 D0 SPI4 Clk Ch2 D1 SPI4 DataIn Ch3 D2 SPI4 DataOut Ch4 D3 CAN Data Ch1 D0 LIN Data Ch1 D0 To save a waveform and/or setup to a USB m
7 Printing and Saving NOTE When saving display image files, the oscilloscope will save an image using the last menu you visited before pressing the [Print] key. Therefore, if you have measurements (Amplitude, Frequency, etc.) showing on the display before you select Save, the measurements will be shown in the display image file. To save an image of the display showing the Save/Recall Menu at the bottom, press the [Save/Recall] key twice, then press the Press to Save softkey.
7 Printing and Saving File Explorer The File Explorer lets you navigate the file system. Using the File Explorer you can save, recall, load, and delete files. File system The user-accessible file system consists of ten internal memory locations, plus external USB mass storage devices you connect to the USB device ports on the oscilloscope. Internal memory The ten internal nonvolatile memory locations are located on the oscilloscope at C:\setups and are named intern_0 through intern_9.
7 Printing and Saving NOTE Regarding USB Ports: The USB port on the front panel, and the USB port on the rear panel labeled “HOST” are USB Series A receptacles. These are the receptacles to which you can connect USB mass storage devices and printers. The square receptacle on the rear panel labeled “DEVICE” is provided for controlling the oscilloscope over USB. See the Programmer’s Guide for more information. To access these documents online, direct your web browser to: • www.agilent.
Printing and Saving Navigate Load selected using Entry file knob, select using this key or push Entry knob InfiniiVision Oscilloscopes User’s Guide Delete selected file 7 Return to previous menu 259
7 260 Printing and Saving InfiniiVision Oscilloscopes User’s Guide
Agilent InfiniiVision 5000/6000/7000 Series Oscilloscope User’s Guide 8 Acquisition Modes To start and stop an acquisition 262 To make a single acquisition 264 Acquisition Modes 265 Normal Mode 265 Peak Detect Mode 266 High Resolution Mode 266 Averaging Mode 267 Realtime Sampling Option 269 Segmented Memory 271 This chapter describes various acquisition modes. See Also • “Mask Test” on page 337. • “Glitch or Narrow Pulse Capture” on page 112.
8 Acquisition Modes To start and stop an acquisition • When you press the [Run/Stop] key, it illuminates in green and the oscilloscope is in run mode. The oscilloscope examines the input voltage at each probe, and updates the display whenever the trigger conditions are met. Trigger processing and screen update rate are optimized based on the oscilloscope settings. The oscilloscope displays multiple acquisitions of the same signal similar to the way an analog oscilloscope displays waveforms.
Acquisition Modes 8 Memory Depth/Record Length [Run/Stop] versus [Single] When the oscilloscope is running, the trigger processing and update rate are optimized over the memory depth. Single Single acquisitions always use the maximum memory available—at least twice as much memory as acquisitions captured in Run mode—and the oscilloscope stores at least twice as many samples.
8 Acquisition Modes To make a single acquisition When you press the [Single] key it illuminates in yellow and the oscilloscope starts the acquisition system, searching for the trigger condition. When the trigger condition is met, the captured waveform is displayed, the [Single] key is extinguished and the [Run/Stop] key illuminates in red. • Use the [Single] key to view single-shot events without subsequent waveform data overwriting the display.
8 Acquisition Modes Acquisition Modes The InfiniiVision oscilloscopes have the following acquisition modes: • Normal — for most waveforms (with normal decimating at slower sweep speeds, no averaging). • Peak Detect — for displaying narrow pulses that occur infrequently (at slower sweep speeds). • Averaging — for reducing noise and increasing resolution (at all sweep speeds, without bandwidth or rise time degradation). • High Resolution — for reducing random noise (at slower sweep speeds).
8 Acquisition Modes Peak Detect Mode In Peak Detect mode at slower sweep speeds, minimum and maximum samples are kept in order to capture infrequent and narrow events (at the expense of exaggerating any noise). This mode displays all pulses that are at least as wide as the sample period (see Table 1).
8 Acquisition Modes 2 GSa/s Sample Rate 4 GSa/s Sample Rate Bits of resolution 50 ns/div 50 ns/div 8 200 ns/div 100 ns/div 9 1 us/div 500 ns/div 10 5 us/div 2 us/div 11 20 us/div 10 us/div 12 Averaging Mode The Averaging mode lets you average multiple acquisitions together to reduce noise and increase vertical resolution (at all sweep speeds). Averaging requires a stable trigger. The number of averages can be set from 2 to 65536 in powers-of-2 increments.
8 Acquisition Modes RANDOM NOISE ON THE DISPLAYED WAVEFORM 128 AVERAGES USED TO REDUCE RANDOM NOISE See also “Trigger Noise Rejection” on page 87 268 InfiniiVision Oscilloscopes User’s Guide
8 Acquisition Modes Realtime Sampling Option Realtime sampling specifies that the oscilloscope produce the waveform display from samples collected during one trigger event (that is, one acquisition). Use Realtime sampling to capture infrequent triggers, unstable triggers, or complex changing waveforms, such as eye diagrams. Realtime sampling can be turned on in Normal, Peak Detect, or High Resolution acquisition modes. It cannot be turned on when the acquisition mode is Averaging.
8 Acquisition Modes To see the sample rate, press the [Acquire] key on the front panel. The sample rate is displayed in the line just above the softkeys.
8 Acquisition Modes Segmented Memory You can purchase the oscilloscope with the segmented memory option factory-installed (Option SGM) or you can easily install it yourself (order model number N5454A “Segmented Memory”). When capturing multiple infrequent trigger events it is advantageous to divide the oscilloscope’s memory into segments. This lets you capture signal activity without capturing long periods of signal “dead time.
8 Acquisition Modes If the signal you are measuring has more than about 1 s of “dead time” (inactivity), consider selecting Normal trigger mode to prevent AutoTriggering. Press the [Mode/Coupling] key, then press the Mode softkey and select Normal. Progress indicator Sample rate Navigating segments Press the Current Seg softkey and turn the Entry knob to display to the desired segment along with a time tag indicating the time from the first trigger event.
8 Acquisition Modes Measurements, statistics, and infinite persistence To perform measurements and view statistical information, press [Quick Meas] and set up your desired measurements. (See “List of Automatic Measurements” on page 192.) Then press Analyze Segments. Statistical data will be accumulated for the measurements you have chosen. The Analyze Segments softkey only appears when the acquisition is stopped and the optional segmented memory feature is on.
8 Acquisition Modes Time (in seconds) since the first trigger Displayed segment number and number of segments acquired Switch segmented on/off Select segment to display Select number of segments Choose positioning mode Sample rate Saving data from segmented memory You can save either the currently displayed segment (Save Segment - Current), or all segments (Save Segment - All) in the following data formats: CSV, ASCII XY, and BIN.
Agilent InfiniiVision 5000/6000/7000 Series Oscilloscope User’s Guide 9 Web Interface Setting up the Oscilloscope’s LAN Connection 276 Accessing the Web Interface 280 Browser Web Control 281 Get Image 285 Identification Function 286 Instrument Utilities 287 Setting a Password 288 The Agilent InfiniiVision oscilloscopes have a LAN interface and a built-in web server; these let you use a Java™-enabled web browser remotely to: • View information about the oscilloscope like its model number, serial number, ho
9 Web Interface Microsoft Internet Explorer is the recommended Web browser for communication and control of the oscilloscope. Other Web browsers may work but are not guaranteed to work with the oscilloscope. The Web browser must be Java-enabled with Sun Microsystems™ Java Plug-in. Before you can use the web interface, you must place the oscilloscope on the network and set up its LAN connection.
9 Web Interface To connect to the network using Manual mode 1 Get the oscilloscope’s network parameters (hostname, domain, IP address, subnet mask, gateway IP, DNS IP, etc.) from your network administrator. 2 Connect the oscilloscope to the local area network (LAN) by inserting the LAN cable into the “LAN” port on the rear panel of the oscilloscope. 3 On the oscilloscope, ensure the controller interface is enabled: a Press [Utility]&I/O&Control. b Ensure that LAN is selected.
9 Web Interface 4 Open a web browser and enter the oscilloscope’s hostname in the address field. The oscilloscope’s Web page will be displayed. Hostname If you do not know the oscilloscope’s hostname you can reset the hostname as follows: 1 Press and release the Reset button (see page 354) on the front panel of the 6000L Series oscilloscope. This will reset the hostname to that which is printed on the label near the oscilloscope’s power cord connection.
9 Web Interface After the LAN connection is configured, you can find the oscilloscope’s IP address and use it to access the instrument’s Web interface: • On an oscilloscope that has a display, you can find the IP address assigned to the oscilloscope in the [Utility]&I/O screen. • On a 6000L Series oscilloscope without a display, you can use the Agilent Connection Expert to find the oscilloscope’s IP address.
9 Web Interface Accessing the Web Interface To access the oscilloscope’s web interface: 1 Connect the oscilloscope to your LAN (see page 276) or establish a point-to-point connection (see page 278). It is possible to use a point-to-point connection, but using a normal LAN connection is the preferred method. 2 Type the oscilloscope’s hostname or IP address in the web browser. The oscilloscope’s web interface Welcome Page is displayed.
Web Interface 9 Browser Web Control The web interface’s Browser Web Control page gives you access to the Remote Front Panel and the SCPI Command window applet for Remote Programming. NOTE If Java is not installed on your PC, you will be prompted to install the Sun Microsystems Java Plug-in. This plug-in must be installed on the controlling PC for the web interface’s Remote Front Panel or Remote Programming operations.
9 Web Interface Main Menu Function Keys Hint appears when you roll over with mouse Softkeys (Left-click to select, Rightclick for Quick Help Scrolling and Monitor Resolution When using a monitor resolution of 1024 x 768 or less on the remote computer, you need to scroll to access the full remote front panel. To display the remote front panel without scroll bars, use a monitor resolution greater than 1024 x 768 on your computer’s display.
Web Interface 9 Remote Programming To send remote programming commands to the oscilloscope via the SCPI Commands applet window: 1 Access the oscilloscope’s web interface (see “Accessing the Web Interface” on page 280). 2 When the oscilloscope’s web interface is displayed, select Browser Web Control, then select Remote Programming. 3 On the Remote Programming page, click SCPI Commands.... The SCPI Commands applet window appears.
9 Web Interface If you get the “Unable to connect to the instrument. You may need to set the instrument’s controller type to LAN.” message: a On the oscilloscope’s front panel, press [Utility]&I/O. b In the I/O Menu, press Control. c Use the Entry knob to point to LAN; then, press Control again to enable the LAN controller type. Multiple controller types may be enabled.
Web Interface 9 Get Image To save (or print) the oscilloscope’s display from the web interface: 1 Access the oscilloscope’s web interface (see “Accessing the Web Interface” on page 280). 2 When the oscilloscope’s web interface is displayed, select the Get Image tab from the left side of the Welcome screen. After a delay of several seconds, the oscilloscope’s screen image will be displayed. 3 Right-click on the image and select “Save Picture As...” (or “Print Picture...”).
9 Web Interface Identification Function The Identification web interface feature is useful when trying to locate a specific instrument in a rack of equipment. 1 Access the oscilloscope’s web interface (see “Accessing the Web Interface” on page 280). 2 When the oscilloscope’s web interface Welcome Page is displayed, select the Identification on radio button.
Web Interface 9 Instrument Utilities The Instrument Utilities page of the web interface lets you: • View installed options. • View firmware versions. • Install firmware upgrade files. • View calibration status. You can select these cababilities via a drop-down menu.
9 Web Interface Setting a Password Whenever you connect the oscilloscope to a LAN, it is good practice to set a password. The password prevents someone from remotely accessing the oscilloscope via a Web browser and changing parameters. Remote users can still view the Welcome screen, view network status, etc., but they can’t operate the instrument or change its setup without the password. To set a password: 1 Access the oscilloscope’s web interface (see “Accessing the Web Interface” on page 280).
Web Interface 9 4 Enter your desired password, and click Apply Changes. Step 3 When accessing the password protected oscilloscope, the user name is the IP address of the oscilloscope. To reset the password Do one of these things to reset the password: • Using the keys on the front panel of the oscilloscope, press [Utility]&I/O&LAN Reset • On 6000L Series oscilloscopes, press the LAN RESET button on the front panel.
9 290 Web Interface InfiniiVision Oscilloscopes User’s Guide
Agilent InfiniiVision 5000/6000/7000 Series Oscilloscope User’s Guide 10 Serial Decode/Lister Serial Decode 292 Lister 293 CAN Serial Decode 295 FlexRay Serial Decode 302 I2C Serial Decode 306 I2S Serial Decode 310 LIN Serial Decode 314 MIL-STD 1553 Serial Decode 320 SPI Serial Decode 323 UART/RS232 Serial Decode 329 Triggering on Serial Data In some cases, such as when triggering on a slow serial signal (for example, I2C, SPI, CAN, LIN, etc.
10 Serial Decode/Lister Serial Decode Agilent’s hardware accelerated serial decode options can be installed when the oscilloscope is manufactured, or added later. The following serial decode licenses are available: • The N5424A (Option AMS) license provides the ability to decode CAN (Controller Area Network) and LIN (Local Interconnect Network) serial buses. Requires a 4-channel oscilloscope.
Serial Decode/Lister 10 Lister Lister is a powerful tool for investigating protocol failures. You can use Lister to view large amounts of packet level serial data in a tabular format, including time tags and specific decoded values. After pressing the [Single] key, you can rotate the Entry knob to select an event and press the Zoom to Selection softkey to jump to the event. To use the Lister: 1 Set up trigger and decode on the serial data signals to be analyzed.
10 Serial Decode/Lister 4 Press the [Single] key (in the Run Control group on the front panel) to stop the acquisition. Pressing [Single] instead of [Stop] fills the maximum memory depth. When zoomed out and viewing a large number of packets, the Lister may not be able to display information for all packets. However, when you press the [Single] key the Lister will contain all on-screen serial decode information. 5 Press the Scroll Lister softkey and use the Entry knob to scroll through the data.
10 Serial Decode/Lister CAN Serial Decode NOTE For CAN triggering set up see page 98. 1 Connect the CAN signal to one of the oscilloscope’s input channels. 2 Set up the trigger mode as described in “Triggering” on page 81. You can use CAN trigger or another trigger type. 3 Select the CAN serial decode mode: a Press the [Acquire] key. b Press the Serial Decode softkey.
10 Serial Decode/Lister 4 Specify the CAN signal: a Press the Settings softkey to access the CAN Signals Menu. Currently selected channel Signal Source Baud rate Sample Point Trigger level Return to previous menu 5 Press the Source softkey, and use the Entry knob to select the channel for the CAN signal.
Serial Decode/Lister 10 The value of the trigger level or digital threshold is displayed in the upper-right corner of the display. 6 Repeatedly press and release the Baud softkey to set the CAN signal baud rate to match your CAN bus signal. The CAN baud rate can be set to: 10 kb/s 50 kb/s 20 kb/s 62.5 kb/s 33.3 kb/s 83.3 kb/s User Defined 100 kb/s 125 kb/s 250 kb/s 500 kb/s 800 kb/s 1 Mb/s The default baud rate is 1 Mb/s If the desired baud rate is not shown in the table, select User Defined.
10 Serial Decode/Lister 10 If the decode line does not appear on the display, press the Decode softkey to turn it on. 11 If the oscilloscope is stopped, press the [Run/Stop] key to acquire and decode data. NOTE If the setup does not produce a stable trigger, the CAN signal may be slow enough that the oscilloscope is AutoTriggering. Press the [Mode/Coupling] key, then press the Mode softkey to set the trigger mode from Auto to Normal.
10 Serial Decode/Lister • Data length code (DLC) appears in blue for data frames and green for remote frames. • Data bytes appear in hex digits in white for data frames. • Cyclic redundancy check (CRC) appears in hex digits in blue when valid, or in red to indicate that the oscilloscope’s hardware decode calculated a CRC that is different from the incoming CRC data stream. • Angled waveforms show an active bus (inside a packet/frame). • Mid-level blue lines show an idle bus.
10 Serial Decode/Lister Counters • The FRAMES counter gives the total number of completed remote, data, overload, and active error frames. • The OVLD counter gives the total number of completed overload frames and their percentage of the total number of frames. • The ERR counter gives the total number of completed active error frames and their percentage of the total number of frames. • The UTIL (bus load) indicator measures the percentage of time the bus is active.
Serial Decode/Lister 10 Interpreting CAN Lister Data In addition to the standard Time column, the CAN Lister contains these columns: • ID — frame ID. • Type — frame type (RMT remote frame, Data, etc.). • DLC — data length code. • Data — data bytes. • CRC — cyclic redundancy check. • Errors — highlighted in red. Errors can be Acknowledge (Ack, A), Form (Fo), or Frame (Fr). Different kinds of errors can be combined like “Fo,Fr” in the above example.
10 Serial Decode/Lister FlexRay Serial Decode To set up the oscilloscope to capture FlexRay signals, see “Setup for FlexRay Signals” on page 107. NOTE While decoding FlexRay data, you can use FlexRay trigger or another trigger type, such as duration, I2C, Nth edge burst, sequence, SPI, or USB. When the oscilloscope is in FlexRay trigger mode, only FlexRay decode is available. NOTE For FlexRay triggering setup see “FlexRay Triggering” on page 108.
Serial Decode/Lister 10 Interpreting FlexRay Frame Decode Payload data Cycle Number Header CRC (blue) Payload Length (green) Frame ID (yellow) Frame Type (blue) The FlexRay decode display shows frame decoding. • Frame type (NORM, SYNC, SUP, NULL in blue). • Frame ID (decimal digits in yellow). • Payload-length (decimal number of words in green). • Header CRC (hex digits in blue plus red HCRC error message if invalid). • Cycle number (decimal digits in yellow). • Data bytes (HEX digits in white).
10 Serial Decode/Lister FlexRay Totalizer The FlexRay totalizer consists of counters that provide a direct measure of bus quality and efficiency. The totalizer appears on screen whenever FlexRay Decode is ON in the Serial Decode Menu. • The FRAMES counter gives a real-time count of all captured frames. • The NULL counter gives the number and percentage of null frames. • The SYNC counter gives the number and percentage of sync frames.
Serial Decode/Lister 10 Interpreting FlexRay Lister Data In addition to the standard Time column, the FlexRay Lister contains these columns: • FID — frame ID. • Len — payload length. • HCRC — header CRC. • CYC — cycle number. • Data. • FCRC — frame CRC. • Frames with errors are highlighted in red.
10 Serial Decode/Lister I2C Serial Decode NOTE NOTE Because of oscilloscope hardware resource limitations, you cannot decode I2C data while LIN triggering is selected. For I2C triggering setup see page 121. 1 Select the I2C serial decode mode: a Press the [Acquire] key. b Press the Serial Decode softkey. Display decode Decode mode Display decode in Lister Signal setup menu Return to previous menu c In the Serial Decode Menu, press the Mode softkey.
10 Serial Decode/Lister a Press the Settings softkey to access the I2C Signals Menu. I2C clock channel I2C data channel Return to previous menu b Press the SCL softkey, and use the Entry knob to select the channel probing the clock signal. c Press the SDA softkey, and use the Entry knob to select the channel probing the data signal.
10 Serial Decode/Lister Interpreting I2C Decode • Angled waveforms show an active bus (inside a packet/frame). • Mid-level blue lines show an idle bus. • In the decoded hexadecimal data: • Address values appear at the start of a frame. • Write addresses appear in light-blue along with the “W” character. • Read addresses appear in yellow along with the “R” character. • Restart addresses appear in green along with the “S” character. • Data values appear in white.
Serial Decode/Lister 10 • Aliased bus values (undersampled or indeterminate) are drawn in red. • Unknown bus values (undefined or error conditions) are drawn in red. Interpreting I2C Lister Data In addition to the standard Time column, the I2C Lister contains these columns: • Restart — indicated with an “X”. • Address — colored blue for writes, yellow for reads. • Data — data bytes. • Missing Ack — highlighted in red, error if it has an “X”.
10 Serial Decode/Lister I2S Serial Decode NOTE NOTE When triggering is set to CAN, LIN, Flexray, or UART/RS232 mode, decoding in I2S is not allowed. When triggering in I2C or SPI modes, or any non-serial trigger mode, I2S is available for decoding. When I2S is selected as the trigger mode, only I2S decode is available. For I2S triggering setup see page 121. 1 Select the I2S serial decode mode: a Press the [Acquire] key. b Press the Serial Decode softkey.
Serial Decode/Lister 10 2 Press the Settings softkey to open the I2S Settings Menu. Signals menu Bus Number configuration base for menu decode Return to previous menu a Press the Signals softkey to open the I2S Signals Menu. This menu is where you select the oscilloscope channels that probe the serial clock, Word Select, and serial data lines. It is the same menu you use when setting up I2S triggers. For more information about the options in this menu, see step 6 on page 122.
10 Serial Decode/Lister Interpreting I2S Decode • Angled waveforms show an active bus (inside a packet/frame). • Mid-level blue lines show an idle bus. • In the decoded data: • Right channel data values appear in green along with the “R:” characters. • Left channel data values appear in white along with the “L:” characters. • Decoded text is truncated at the end of the associated frame when there is insufficient space within frame boundaries.
Serial Decode/Lister NOTE 10 When the receiver word size is greater than the transmit word size, the decoder fills the least significant bits with zeros and the decoded value does not match the trigger value. Interpreting I2S Lister Data In addition to the standard Time column, the I2S Lister contains these columns: • Left Channel — displays the left channel data. • Right Channel — displays the right channel data. • Errors — highlighted in red and marked with an “X”.
10 Serial Decode/Lister LIN Serial Decode NOTE For LIN triggering setup see page 128. 1 Select the LIN serial decode mode: a Press the [Acquire] key. b Press the Serial Decode softkey. Display decode Decode mode Signal setup menu Show parity bits Display decode in Lister Return to previous menu c In the Serial Decode Menu, press the Mode softkey. d Use the Entry knob (or repeatedly press and release the Mode softkey) to select the LIN serial decode mode.
Serial Decode/Lister 10 3 Specify the LIN signal: a Press the Settings softkey to access the LIN Signals Menu. Currently selected channel LIN trigger Trigger level or threshold Decoded LIN data LIN signal source LIN baud rate Signal sample point LIN standard selection Sync Break selection Return to previous menu b Press the Source softkey, and use the Entry knob to select the channel probing the LIN signal.
10 Serial Decode/Lister If the desired baud rate is not shown in the list, select User Defined. You can set the LIN baud rate from 2.4 kb/s to 625 kb/s in increments of 100 b/s. Press the User Baud softkey and rotate the Entry knob to make your selection. d Repeatedly press and release the Smpl Pt softkey to select the sample point. This controls the point within the bit’s time where the bit value is captured.
Serial Decode/Lister 10 5 If the oscilloscope is stopped, press the [Run/Stop] key to acquire and decode data. NOTE If the setup does not produce a stable trigger, the LIN signal may be slow enough that the oscilloscope is AutoTriggering. Press the [Mode/Coupling] key, then press the Mode softkey to set the trigger mode from Auto to Normal. You can use the Zoom horizontal sweep mode for easier navigation of the decoded data.
10 Serial Decode/Lister • For LIN 1.3, the checksum appears in blue if correct, or red if incorrect. The checksum always appears in white for LIN 2.0. • Decoded text is truncated at the end of the associated frame when there is insufficient space within frame boundaries. • Red dots in the decode line indicate that there is data that is not being displayed. Scroll or expand the horizontal scale to view the information. • Unknown bus values (undefined or error conditions) are drawn in red.
Serial Decode/Lister 10 Interpreting LIN Lister Data In addition to the standard Time column, the LIN Lister contains these columns: • ID — frame ID. • Data — (LIN 1.3 only) data bytes. • Checksum — (LIN 1.3 only). • Data and Checksum — (LIN 2.0 only). • Errors — highlighted in red.
10 Serial Decode/Lister MIL-STD 1553 Serial Decode To probe MIL-STD 1553 signals, see “Probing MIL-STD 1553 Signals” on page 131. To set up the oscilloscope to capture MIL-STD 1553 signals, see “Setup for MIL-STD 1553 Signals” on page 132. NOTE Before you can select serial decode of MIL-STD 1553 signals, the trigger type must be set to MIL-STD-1553 or one of the non-serial triggering modes. See “MIL-STD 1553 Triggering” on page 133.
Serial Decode/Lister 10 Interpreting MIL-STD 1553 Decode To display serial decode information, you must press Run or Single after switching on serial decode. The MIL-STD 1553 decode display is color coded as follows: • Command and Status decoded data is colored green, with the Remote Terminal Address (5 bits of data) being displayed first, then the text "C/S:", followed by the value of the remaining 11 bits of a Command/Status word. • Data word decoded data is colored white, preceded by the text "D:".
10 Serial Decode/Lister Viewing MIL-STD 1553 Data in the Lister 1 In the Serial Decode Menu (when serial decode is being displayed), press Lister. 2 In the Lister Menu, press Lister Display to turn it on. In addition to the standard Time column, the MIL-STD 1553 Lister contains these columns: • RTA – displays the Remote Terminal Address for Command/Status words, nothing for Data words. • Word Type – “Cmd/Status” for Command/Status words, “Data” for Data words.
Serial Decode/Lister 10 SPI Serial Decode NOTE Because of oscilloscope hardware resource limitations, you cannot decode SPI data while CAN or LIN triggering is selected. NOTE For SPI triggering setup see page 150. 1 Select the SPI serial decode mode: a Press the [Acquire] key. b Press the Serial Decode softkey. Display decode Decode mode Signal setup menu SPI word size Display decode in Lister Return to previous menu c In the Serial Decode Menu, press the Mode softkey.
10 Serial Decode/Lister 2 Specify the SPI signals: NOTE If you have already set up an SPI trigger, the signals and their trigger or threshold levels have already been specified, and you can continue on with step 3. Changing SPI signals in the Serial Decode setup also changes them in the Trigger setup. a Press the Settings softkey to access the SPI Settings Menu. b Press the Signals softkey to access the SPI Signals Menu.
Serial Decode/Lister Currently selected Clock, Framing, or Data channel SPI trigger 10 Trigger level or threshold Graphic showing SPI signals setup Clock signal Clock edge Data signal Frame by option Frame signal/ value Return to previous menu c Press the Clock softkey, and use the Entry knob to select the channel probing the clock signal.
10 Serial Decode/Lister If you have connected one of the oscilloscope’s digital source channels to the Clock signal (this applies to MSO model oscilloscopes only): Press the [D15-D0] key and select Thresholds to set an appropriate threshold level for digital channels. e Press the rising or falling edge softkey to specify the edge that the clock occurs on. f Press the Data softkey, and use the Entry knob to select the channel probing the data signal.
10 Serial Decode/Lister NOTE If the setup does not produce a stable trigger, the SPI signal may be slow enough that the oscilloscope is AutoTriggering. Press the [Mode/Coupling] key, then press the Mode softkey to set the trigger mode from Auto to Normal. You can use the Zoom horizontal sweep mode for easier navigation of the acquired data. Interpreting SPI Decode • Angled waveforms show an active bus (inside a packet/frame). • Mid-level blue lines show an idle bus.
10 Serial Decode/Lister • Red dots in the decode line indicate that there is data that is not being displayed. Scroll or expand the horizontal scale to view the information. • Aliased bus values (undersampled or indeterminate) are drawn in red. • Unknown bus values (undefined or error conditions) are drawn in red. Interpreting SPI Lister Data In addition to the standard Time column, the SPI Lister contains these columns: • Data — data bytes (MISO or MOSI).
Serial Decode/Lister 10 UART/RS232 Serial Decode NOTE Because of oscilloscope hardware resource limitations, you cannot decode UART/RS232 data while CAN, LIN, or FlexRay triggering is selected. NOTE For UART/RS232 triggering setup see page 166. 1 Select the UART/RS232 serial decode mode: a Press the [Acquire] key. b Press the Serial Decode softkey.
10 Serial Decode/Lister NOTE Changing UART/RS232 signals in the Serial Decode setup also changes them in the Trigger setup. 2 Specify the UART/RS232 signals: a Press the Settings softkey to access the UART/RS232 decode settings menu.
Serial Decode/Lister 10 b Press the Signals softkey, and select the oscilloscope channels that you have connected to the Rx and Tx signals. Set the trigger levels. See “UART/RS232 Trigger” on page 166 for detailed instructions. 3 Press the “Return to previous menu” (up arrow) softkey. NOTE Changing the Bus Configuration settings in the Serial Decode setup also changes them in the Trigger setup. 4 Press the Bus Config softkey.
10 Serial Decode/Lister 8 Make sure the trigger or threshold levels are set to the middle of the signals: • For analog channels, turn the Trigger Level knob. • For digital channels, press the [D15-D0] key and the Thresholds softkey to access the threshold level setting softkeys. 9 If the decode line does not appear on the display, press the up arrow softkey to return to the previous menu, then press the Decode softkey to turn on serial decode.
Serial Decode/Lister 10 Interpreting UART/RS232 Decode • Angled waveforms show an active bus (inside a packet/frame). • Mid-level blue lines show an idle bus. • When using 5-8 bit formats, the decoded data is displayed in white (in binary, hex, or ASCII). • When using the 9 bit format, all data words are displayed in green, including the 9th bit. The 9th bit is displayed on the left. • When a data word value is selected for framing, it is displayed in light blue.
10 Serial Decode/Lister • A parity error will cause the associated data word to be shown in red, which includes the 5-8 data bits and the optional 9th bit. UART/RS232 Totalizer The UART/RS232 totalizer consists of counters that provide a direct measure of bus quality and efficiency. The totalizer appears on screen whenever UART/RS232 Decode is ON in the Serial Decode Menu.
Serial Decode/Lister 10 Interpreting UART/RS232 Lister Data In addition to the standard Time column, the UART/RS232 Lister contains these columns: • Rx — receive data. • Tx — transmit data. • Errors — highlighted in red, Parity Error or Unknown Error.
10 Serial Decode/Lister 336 InfiniiVision Oscilloscopes User’s Guide
Agilent InfiniiVision 5000/6000/7000 Series Oscilloscope User’s Guide 11 Mask Test To create a mask from a “golden” waveform (Automask) 338 Setup Options 340 Mask Statistics 343 To manually modify a mask file 345 Building a Mask File 348 One way to verify a waveform's compliance to a particular set of parameters is to use mask testing. A mask defines a region of the oscilloscope's display in which the waveform must remain in order to comply with chosen parameters.
11 Mask Test To create a mask from a “golden” waveform (Automask) A golden waveform meets all chosen parameters, and it is the waveform to which all others will be compared. 1 Configure the oscilloscope to display the golden waveform. 2 Press the [Acquire] key. 3 Press the Mask Test softkey (in the Acquire Menu) to enter the Mask Test Menu. Mask test 4 Press the Automask softkey. Automask 5 Press the Source softkey and ensure the analog channel from which to create the mask is selected.
Mask Test 11 7 Press the Create Mask softkey. The mask is created and testing begins. Whenever the Create Mask softkey is pressed the old mask is erased and a new mask is created. 8 To clear the mask and switch off mask testing, press the up arrow softkey to return to the Mask Test Menu, then press the Clear Mask softkey. If infinite persistence display mode (see “Infinite Persistence” on page 182) is “on” when mask test is enabled, it stays on.
11 Mask Test Setup Options Run Until The Run Until softkey lets you specify a condition on which to terminate testing. Forever The oscilloscope runs continuously. However, if an error occurs the action specified using the On Error softkey will occur. Minimum # of Tests Choose this option and then use the # of Tests softkey to select the number of times the oscilloscope will trigger, display the waveform(s), and compare them to the mask.
11 Mask Test Save The oscilloscope will save the screen image based on the settings you have chosen. See “Saving Oscilloscope Data” on page 247. Print The oscilloscope will print the waveform display when the first error is detected. This option is only available when a printer is connected as described in “To print the oscilloscope’s display” on page 245. Measure Measurements and measurement statistics run only on waveforms that contain a mask violation and are not affected by passing waveforms.
11 Mask Test Mask Test Trigger Output The oscilloscope’s trigger output (located on the rear panel) can be activated by mask test results. Press [Utility]&Options&Rear Panel&Trig Out and select Mask. Use the Mask Out softkey to select the desired mode. Run mode Mask Out setting Trigger Output (rear panel) Single Pass A pulse is produced if the mask test passed. Single Fail A pulse is produced if the mask test failed.
Mask Test 11 Mask Statistics From the Mask Test Menu, press the Statistics softkey to enter the Mask Statistics Menu. When you enable Show Statistics the following information is displayed: • Current mask, name of mask, Channel number, date and time. • # of Tests (total number of mask tests executed). • Status (Passing, Failing, or Untested). • Accumulated test time (in hours, minutes, seconds, and tenths of seconds).
11 Mask Test Reset Statistics Press this softkey to reset the statistics counters to zero. Note that statistics are also reset when: • Mask Test is switched on after being switched off. • Clear Mask softkey is pressed. • An Automask is created. Additionally, the accumulated time counter is reset whenever the oscilloscope is run after the acquisition was stopped. Transparent Enable Transparent mode to write measurement values and statistics on the screen without a background.
Mask Test 11 To manually modify a mask file You can manually modify a mask file that you created using the Automask function. 1 Follow the steps 1-7 in “To create a mask from a “golden” waveform (Automask)” on page 338. Do not clear the mask after creating it. 2 Attach a USB mass storage device to the oscilloscope. 3 Press the [Save/Recall] key. 4 Press the Save softkey. 5 Press the Format softkey and select Mask. 6 Press the second softkey and select a destination folder on your USB mass storage device.
11 Mask Test Mask Violation Regions Region 1 Region 2 Up to 8 regions can be defined for a mask. They can be numbered 1-8. They can appear in any order in the .msk file. The numbering of the regions must go from top to bottom, left to right. The lowest numbered region An Automask file contains two special regions: the region “glued” to the top of the display, and the region that is “glued” to the bottom. The top region is indicated by y-values of “MAX” for the first and last points.
11 Mask Test • X • Y1 • Y2 These four parameters are defined in the Oscilloscope Setup portion of the mask file.
11 Mask Test Building a Mask File The following mask uses all eight regions. The most difficult part of creating a mask file is normalizing the X and Y values from the time and voltage values. This example shows an easy way to convert voltage and time to normalized X and Y values in the mask file. The following mask file produced the mask shown above: MASK_FILE_548XX "All Regions" /* Region Number */ 1 /* Number of vertices */ 4 -12.50, MAX -10.00, 1.750 10.00, 1.750 12.
Mask Test 11 -12.50, 1.500 /* Region Number */ 3 /* Number of vertices */ 6 -05.00, 1.000 -02.50, 0.500 02.50, 0.500 05.00, 1.000 02.50, 1.500 -02.50, 1.500 /* Region Number */ 4 /* Number of vertices */ 5 10.00, 1.000 12.50, 0.500 15.00, 0.500 15.00, 1.500 12.50, 1.500 /* Region Number */ 5 /* Number of vertices */ 5 -10.00, -1.000 -12.50, -0.500 -15.00, -0.500 -15.00, -1.500 -12.50, -1.500 /* Region Number */ 6 /* Number of vertices */ 6 -05.00, -1.000 -02.50, -0.500 02.50, -0.500 05.00, -1.000 02.
11 Mask Test /* Number of vertices */ 4 -12.50, MIN -10.00, -1.750 10.00, -1.750 12.50, MIN setup :MTES:ENAB 1 :CHAN1:RANG +4.00E+00;OFFS +0.0E+00;COUP DC;IMP ONEM;DISP 1;BWL 0;INV 0 :CHAN1:LAB "1";UNIT VOLT;PROB +1.0E+00;PROB:SKEW +0.0E+00;STYP SING :CHAN2:RANG +16.0E+00;OFFS +1.62400E+00;COUP DC;IMP FIFT;DISP 0;BWL 0;INV 0 :CHAN2:LAB "2";UNIT VOLT;PROB +1.0E+00;PROB:SKEW +0.0E+00;STYP SING :CHAN3:RANG +40.0E+00;OFFS +0.0E+00;COUP DC;IMP ONEM;DISP 0;BWL 0;INV 0 :CHAN3:LAB "3";UNIT VOLT;PROB +1.
Agilent InfiniiVision 5000/6000/7000 Series Oscilloscope User’s Guide 12 Controls and Connectors Front Panel 352 5000/6000 Series Front Panel (4-channel) 352 5000/6000 Series Front Panel (2-Channel, differences only) 353 6000L Series Front and Rear Panel 354 7000 Series Front Panel (4-Channel) 355 7000 Series Front Panel (2-Channel, differences only) 356 Front Panel Control and Connector Descriptions 357 Rear Panel 362 5000 Series Rear Panel (4-Channel) 362 5000 Series Rear Panel (2-Channel) 363 6000 Serie
12 Controls and Connectors Front Panel 5000/6000 Series Front Panel (4-channel) Click the text for the item’s description and operation information. Printed manual: refer to numbered descriptions on the following pages. 22. 19. 24. Battery Display Status Measure Indicators Keys 18. Horizontal Controls 11. Waveform Keys 16. Run Controls 17. Trigger Controls 21. Entry Knob 14. [Utility] Key 20. [AutoScale] Key 15. File Keys 23. Softkeys 7. [Label] Key 4. Channel Input BNC Connector 5.
Controls and Connectors 12 5000/6000 Series Front Panel (2-Channel, differences only) External Trigger Input The differences between the front panel of the 4-channel oscilloscopes and the 2-channel oscilloscopes are: • The 2-channel oscilloscope has two sets of channel controls • The 2-channel oscilloscope’s external trigger input is on the front panel instead of the rear panel. Some trigger features differ. See “External Trigger Input” on page 92.
12 Controls and Connectors 6000L Series Front and Rear Panel Click the text for the item’s description and operation information. Printed manual: refer to numbered descriptions on the following pages. FRONT PANEL 1. Power Switch 25. Power Indicator 26. LAN Status Indicator 27. Reset Switch 12. Intensity Control 2. USB 3. Probe 5. 4. Channel Host Port Compen- AutoProbe Input BNC sation Interface Connector Terminals REAR PANEL 1. 2. 4. 3.
12 Controls and Connectors 7000 Series Front Panel (4-Channel) Click the text for the item’s description and operation information. Printed manual: refer to numbered descriptions on the following pages. 19. Display 18. Horizontal Controls 17. Trigger Controls 16. Run Controls 15. File Keys 14. [Utility] Key 13. Digital Channel Controls 20. [AutoScale] Key 21. Entry Knob 12. Intensity Control 22. Measure Keys 11. Waveform Keys 23. Softkeys 10. Vertical Sensitivity 9. Channel On/Off Key 1.
12 Controls and Connectors 7000 Series Front Panel (2-Channel, differences only) External Trigger Input The differences between the front panel of the 4-channel oscilloscopes and the 2-channel oscilloscopes are: • The 2-channel oscilloscope has two sets of channel controls • The 2-channel oscilloscope’s external trigger input is on the front panel instead of the rear panel. Some trigger features differ. See “External Trigger Input” on page 92.
12 Controls and Connectors Front Panel Control and Connector Descriptions 1. Power Switch Press once to switch power on; press again to switch power off. See page 49. 2. USB Host Port This port is for connecting USB mass storage devices or printers to the oscilloscope. Connect a USB compliant mass storage device (flash drive, disk drive, etc.) to store or recall oscilloscope setup files or waveforms. To print, connect a USB compliant printer.
12 Controls and Connectors 6. [Math] Key The [Math] key provides access to add, subtract, multiply, differentiate, integrate, FFT (Fast Fourier Transform) and square root functions. See “Measurements and Math Functions” on page 191. 7. [Label] Key Press this key to access the Label Menu, which lets you enter labels to identify each trace on the oscilloscope display. See “Using Labels” on page 183. 8. Vertical Position Control Use this knob to change the channel’s vertical position on the display.
Controls and Connectors 12 If a trace is repositioned over an existing trace the indicator at the left edge of the trace will change from Dnn designation (where nn is a one or two digit channel number from 0 to 15) to D*. The “*” indicates that two channels are overlaid. You can rotate the knob to select an overlaid channel, then press the knob to position it just as you would any other channel. For more information on digital channels see Chapter 13, “Digital Channels,” starting on page 371. 14.
12 Controls and Connectors 18. Horizontal Controls Horizontal Sweep Speed Control Turn the knob in the Horizontal section that is marked to adjust the sweep speed. The symbols under the knob indicate that this control has the effect of spreading out or zooming in on the waveform using the horizontal scale. The horizontal sweep speed control changes the time per horizontal division on the display. For more information see “To set up the Horizontal time base” on page 64.
12 Controls and Connectors 22. Measure Keys Press the [Cursors] key to turn on cursors that you can use for making measurements. Press the [Quick Meas] key to access a set of predefined measurements. See Chapter 6, “Measurements and Math Functions,” starting on page 191. 23. Softkeys The functions of these keys change based upon the menus shown on the display directly above the keys. 24. Battery Status Indicators These indicators appear only on 6000A models with option BAT (battery power).
12 Controls and Connectors Rear Panel 5000 Series Rear Panel (4-Channel) Click the text for the item’s description and operation information. Printed manual: refer to numbered descriptions on the following pages. Calibration Protection Switch AC Power Connector 0RODUCT 3ERIAL .UMBER ,ABEL >8:H$CB7"%%& L6GC>CCI6>C 9 :A:8IG>8 H=D8@ 40 :A:8IG>86A :A:8IGDC>8 B:6HJG>C< I:HI>C< :FJ>EB:CI s A>C: &'% L B6M C&%&).
Controls and Connectors 12 5000 Series Rear Panel (2-Channel) The 2-channel model rear panel is the same as the 4-channel model rear panel shown on page 366, except on 2-channel models, the external trigger input is on the front panel instead of the rear panel. AC Power Connector Calibration Protection Switch 0RODUCT 3ERIAL .UMBER ,ABEL >8:H$CB7"%%& L6GC>CCI6>C 9 :A:8IG>8 H=D8@ 40 :A:8IG>86A :A:8IGDC>8 B:6HJG>C< I:HI>C< :FJ>EB:CI s A>C: &'% L B6M C&%&).
12 Controls and Connectors 6000 Series Rear Panel (4-Channel) Click the text for the item’s description and operation information. Printed manual: refer to numbered descriptions on the following pages. 5. Digital Input Connector 4. Calibration 6. XGA Video Protect Output Switch 11.
Controls and Connectors 12 6000 Series Rear Panel (2-Channel) The 2-channel model rear panel is the same as the 4-channel model rear panel shown on page 366, except on 2-channel models, the external trigger input is on the front panel instead of the rear panel.
12 Controls and Connectors 6000 Series Option BAT Rear Panel (4-Channel) Click the text for the item’s description and operation information. Printed manual: refer to numbered descriptions on the following pages. 5. Digital Input Connector 4. Calibration 6. XGA Video Protect Output Switch 11. Power Connector 86A>7G6I>DC JCEGDI:8I:9 :MI IG>< >C &*K B6M 86A>7G6I>DC EGDI:8I:9 IG>< DJI &%B=o G:; &*K B6M M<6 K>9:D DJI =DHI 9:K>8: 10. Kensington Lock L6GC>C< JH7 9><>I6A 9&*"9% 13.
Controls and Connectors 12 7000 Series Rear Panel (4-Channel) Click the text for the item’s description and operation information. Printed manual: refer to numbered descriptions on the following pages. 1. 2. Trigger 3. 10 MHz 4. 5. Digital 6. XGA 7. USB External Output Reference Calibration Input Video Host Port Trigger Connector Protect Connector Output (For saving Input Switch and 8. USB Device Port (For remote control) loading data.) :MI IG>< >C &*K B6M IG>< DJI &%B=o G:; &*K B6M 9.
12 Controls and Connectors 7000 Series Rear Panel (2-Channel) The 2-channel model rear panel is the same as the 4-channel model rear panel shown on page 366, except on 2-channel models, the external trigger input is on the front panel instead of the rear panel. External trigger input is on the front panel IG>< DJI &%B=o G:; &*K B6M *$&4 /.# 9><>I6A 9&*"9% JH: G:8DBB:C9:9 867A: DCAN M<6 K>9:D DJI =DHI 9:K>8: &-&$53*$"- &-&$530/*$ .&"463*/( 5&45*/( &26*1.&/5 A6C -3 $ $ 64 *4.
12 Controls and Connectors Rear Panel Control and Connector Descriptions 1. External Trigger Input See “External Trigger Input” on page 92 for an explanation of this feature. 2. Trigger Output See “Trigger Output” on page 95. 3. 10 MHz Reference Connector See “Using the 10 MHz reference clock” on page 406. 4. Calibration Protect Switch See “User Calibration” on page 394. 5. Digital Input Connector Connect the digital probe cable to this connector (MSO models only). 6.
12 Controls and Connectors 13. Ground Terminal Option BAT oscilloscopes: Connect the oscilloscope to earth ground using this terminal. Maintain oscilloscope ground connection. Do not negate the protective action of the ground connection to the oscilloscope. If the device under test has voltages greater than 30 Vrms, the oscilloscope must be grounded through its ground terminal to prevent electric shock to the user or damage to the oscilloscope.
Agilent InfiniiVision 5000/6000/7000 Series Oscilloscope User’s Guide 13 Digital Channels To connect the digital probes to the device under test 372 Acquiring waveforms using the digital channels 375 To display digital channels using AutoScale 376 Interpreting the digital waveform display 378 To switch all digital channels on or off 379 To switch groups of channels on or off 379 To switch a single channel on or off 379 To change the displayed size of the digital channels 379 To reposition a digital channel
13 Digital Channels To connect the digital probes to the device under test The digital channels are enabled on MSO6000/7000 models and DSO6000/7000 models which have the MSO upgrade license installed. 1 If necessary, turn off the power supply to the device under test. Turning off power to the device under test would only prevent damage that might occur if you accidentally short two lines together while connecting probes. You can leave the oscilloscope powered on because no voltage appears at the probes.
Digital Channels 13 4 Connect the ground lead on each set of channels (each pod), using a probe grabber. The ground lead improves signal fidelity to the oscilloscope, ensuring accurate measurements. Channel Pod Ground Circuit Ground 5 Connect a grabber to one of the probe leads. (Other probe leads are omitted from the figure for clarity.
13 Digital Channels 6 Connect the grabber to a node in the circuit you want to test. 7 For high-speed signals, connect a ground lead to the probe lead, connect a grabber to the ground lead, and attach the grabber to ground in the device under test.
Digital Channels 13 8 Repeat steps 3 through 6 until you have connected all points of interest. Signals Ground Acquiring waveforms using the digital channels When you press [Run/Stop] or [Single] to run the oscilloscope, the oscilloscope examines the input voltage at each input probe. When the trigger conditions are met the oscilloscope triggers and displays the acquisition. For digital channels, each time the oscilloscope takes a sample it compares the input voltage to the logic threshold.
13 Digital Channels To display digital channels using AutoScale When signals are connected to the digital channels, AutoScale quickly configures and displays the digital channels. • To configure the instrument quickly, press the [AutoScale] key. Any digital channel with an active signal will be displayed. Any digital channels without active signals will be turned off. • To undo the effects of AutoScale, press the Undo AutoScale softkey before pressing any other key.
Digital Channels 13 the instrument to the factory default configuration by pressing the [Save/Recall] key, then the Default Setup softkey. Then press the [AutoScale] key. You should see a display similar to the following.
13 Digital Channels Interpreting the digital waveform display The following figure shows a typical display with digital channels.
Digital Channels 13 To change the displayed size of the digital channels 1 Press the [D15-D0] key. 2 Press the size ( ) softkey to select how the digital channels are displayed. The sizing control lets you spread out or compress the digital traces vertically on the display for more convenient viewing. To switch a single channel on or off 1 With the Digital Channel Menu displayed, rotate the Entry knob to select the desired channel from the popup menu.
13 Digital Channels To change the logic threshold for digital channels 1 Press the [D15-D0] key so that the Digital Channel Menu is displayed. 2 Press the Thresholds softkey 3 Press the D15 - D8 or D7 - D0 softkey, then select a logic family preset or select User to define your own threshold. Logic family Threshold Voltage TTL +1.4 V CMOS +2.5 V ECL –1.3 V User Variable from –8 V to +8 V The threshold you set applies to all channels within the selected D15 Thru D8 or D7 Thru D0 group.
13 Digital Channels If a trace is repositioned over an existing trace the indicator at the left edge of the trace will change from Dnn designation (where nn is a one or two digit channel number from 0 to 15) to D*. The “*” indicates that two channels are overlaid. To display digital channels as a bus Digital channels may be grouped and displayed as a bus, with each bus value displayed at the bottom of the display in hex or binary. You can create up to two buses.
13 Digital Channels The buses are shown at the bottom of the display. Bus values can be shown in hex or binary Using cursors to read bus values To read the digital bus value at any point using the cursors: 1 Turn on Cursors (by pressing the [Cursors] key on the front panel) 2 Press the cursor Mode softkey and change the mode to Hex or Binary. 3 Press the Source softkey and select Bus1 or Bus2.
Digital Channels 13 4 Use the Entry knob and the X1 and X2 softkeys to position the cursors where you want to read the bus values. X1 cursor X2 cursor Bus values Bus values at cursors shown here Set mode to Binary or Hex Select Bus1 or Bus2 source When you press the [D15-D0] key to display the Digital Channel Menu, the digital activity indicator is shown where the cursor values were and the bus values at the cursors are displayed in the graticule.
13 Digital Channels Bus values are displayed when using Pattern trigger The bus values are also displayed when using the Pattern trigger function. Press the [Pattern] key on the front panel to display the Pattern Trigger Menu and the bus values will be displayed on the right, above the softkeys. The dollar sign ($) will be displayed in the bus value when the bus value cannot be displayed as a hex value.
Digital Channels 13 Digital channel signal fidelity: Probe impedance and grounding When using the mixed-signal oscilloscope you may encounter problems that are related to probing. These problems fall into two categories: probe loading and probe grounding. Probe loading problems generally affect the device under test, while probe grounding problems affect the accuracy of the data to the measurement instrument.
13 Digital Channels HIGH-FREQUENCY PROBE EQUIVALENT CIRCUIT 7.5 pF 250 W 1 pF 150 W 100 kW The impedance plots for the two models are shown in these figures. By comparing the two plots, you can see that both the series tip resistor and the cable’s characteristic impedance extend the input impedance significantly. The stray tip capacitance, which is generally small (1 pF), sets the final break point on the impedance chart.
Digital Channels 13 Probe Grounding A probe ground is the low-impedance path for current to return to the source from the probe. Increased length in this path will, at high frequencies, create large common mode voltages at the probe input. The voltage generated behaves as if this path were an inductor according to the equation: di V = L ----dt Increasing the ground inductance (L), increasing the current (di) or decreasing the transition time (dt), will all result in increasing the voltage (V).
13 Digital Channels reconstructed waveforms, they do not show ringing and perturbations. You will not find ground problems through examination of the waveform display. In fact, it is likely you will discover the problem through random glitches or inconsistent data measurements. Use the analog channels to view ringing and perturbations. Best Probing Practices Because of the variables L, di, and dt, you may be unsure how much margin is available in your measurement setup.
13 Digital Channels To replace digital probe leads If you need to remove a probe lead from the cable, insert a paper clip or other small pointed object into the side of the cable assembly, and push to release the latch while pulling out the probe lead.
13 Digital Channels 390 InfiniiVision Oscilloscopes User’s Guide
Agilent InfiniiVision 5000/6000/7000 Series Oscilloscope User’s Guide 14 Utilities To restore the oscilloscope to its default configuration 392 To perform service functions 393 User Calibration 394 Self Test 397 This chapter explains oscilloscope utilities.
14 Utilities To restore the oscilloscope to its default configuration • Press the [Save/Recall] key, then press the Default Setup softkey. The default configuration returns the oscilloscope to its default settings. This places the oscilloscope in a known operating condition. The major default settings are: Horizontal normal mode, 100 s/div scale, 0 s delay, center time reference. Vertical (Analog) Channel 1 on, 5 V/div scale, DC coupling, 0 V position, 1 M impedance, probe factor to 1.
Utilities 14 To perform service functions • Press the [Utility]&Service to display the Service Menu. Start User Cal Start Self Test About Oscilloscope User Cal status Return to previous menu The Service Menu lets you: • Perform User Calibration on the oscilloscope. • View User Calibration status. • Perform instrument Self Test. • View information about your oscilloscope model number, code revision information, and User Calibration status.
14 Utilities User Calibration Perform user-calibration: • Each year or after 2000 hours of operation. • If the ambient temperature is >10° C from the calibration temperature. • If you want to maximize the measurement accuracy. The amount of use, environmental conditions, and experience with other instruments help determine if you need shorter User Cal intervals. User Cal performs an internal self-alignment routine to optimize the signal path in the oscilloscope.
Utilities 14 For a 2-channel oscilloscope, connect a BNC tee to the equal length cables. Then connect a BNC(f)-to-BNC(f) (also called a barrel connector) to the tee as shown below. USER CALIBRATION CABLE FOR 2-CHANNEL OSCILLOSCOPE Longer cable to TRIG OUT To Channel 1 To Channel 2 For a 4-channel oscilloscope, connect BNC tees to the equal-length cables as shown below. Then connect a BNC(f)-to-BNC(f) (barrel connector) to the tee as shown below.
14 Utilities 3 Connect a BNC cable (40 inches maximum) from the TRIG OUT connector on the rear panel to the BNC barrel connector. 4 Press the [Utility] key, then press the Service softkey. 5 Begin the Self Cal by pressing the Start User Cal softkey. 6 When the User Cal is completed, set the rear-panel CALIBRATION switch to PROTECTED.
Utilities 14 Self Test Pressing [Utility]&Service&Start Self Test performs a series of internal procedures to verify that the oscilloscope is operating properly. It is recommended you run Self Test: • after experiencing abnormal operation. • for additional information to better describe an oscilloscope failure. • to verify proper operation after the oscilloscope has been repaired. Successfully passing Self Test does not guarantee 100% of the oscilloscope's functionality.
14 Utilities 398 InfiniiVision Oscilloscopes User’s Guide
Agilent InfiniiVision 5000/6000/7000 Series Oscilloscope User’s Guide 15 Reference About Oscilloscope 400 Software and Firmware Updates 400 Installed Licenses 400 Upgrading to an MSO 401 Secure Environment Mode Option 402 Measurement Category 403 Environmental Conditions 405 Using the 10 MHz reference clock 406 To supply a sample clock to the oscilloscope 406 To synchronize the timebase of two or more instruments 408 To clean the oscilloscope 408 Binary Data (.
15 Reference About Oscilloscope Press [Utility]&Service&About Oscilloscope to display information about your oscilloscope model number, serial number, software version, boot version, graphics version, and installed licenses. Software and Firmware Updates From time to time Agilent Technologies releases software and firmware updates for its products. To search for firmware updates for your oscilloscope, direct your web browser to www.agilent.com/find/7000sw.
Reference 15 • LSS — Low Speed Serial Decode. This license provides serial decode of I2C and SPI buses. • mem8M — Memory Upgrade. This license is always provided with 7000 Series oscilloscopes. It shows the total memory depth (8 Mpts interleaved). • MSO — Mixed Signal Oscilloscope. This license adds 16 digital channels. You do not have to install any hardware. A digital probe cable is provided for connection to your device under test.
15 Reference Secure Environment Mode Option Secure environment mode is compliant to National Industrial Security Program Operating Manual (NISPOM) Chapter 8 requirements. Secure environment mode is called option SEC. When secure environment mode is installed, trace and setup data are stored to internal volatile memory (rather than internal non-volatile memory). Oscilloscope setup, waveform, and trace data are erased when the power is shut off.
Reference 15 Measurement Category Measurement Category The InfiniiVision oscilloscopes are intended to be used for measurements in Measurement Category I. WA R N I N G Use this instrument only for measurements within its specified measurement category. Measurement Category Definitions Measurement category I is for measurements performed on circuits not directly connected to MAINS. Examples are measurements on circuits not derived from MAINS, and specially protected (internal) MAINS derived circuits.
15 Reference Transient Withstand Capability CAUTION Maximum input voltage at analog inputs and 2-channel external trigger input: CAT I 300 Vrms, 400 Vpk; transient overvoltage 1.6 kVpk CAT II 100 Vrms, 400 Vpk 50 input: 5 Vrms Input protection is enabled in 50 mode and the 50 load will disconnect if greater than 5 Vrms is detected. However the inputs could still be damaged, depending on the time constant of the signal. The 50 input protection only functions when the oscilloscope is powered on.
15 Reference Environmental Conditions Environment Indoor use only. Ambient temperature Operating –10 °C to +55 °C; non-operating –40 °C to +70 °C Humidity Altitude Operating 95% RH at 40 °C for 24 hr; non-operating 90% RH at 65 °C for 24 hr Operating to 4,570 m (15,000 ft); non-operating to 15,244 m (50,000 ft) Overvoltage Category This product is intended to be powered by MAINS that comply to Overvoltage Category II, which is typical of cord-and-plug connected equipment.
15 Reference Using the 10 MHz reference clock The 10 MHz REF BNC connector on the rear panel is provided so you can: • Supply a more accurate sample clock signal to the oscilloscope, or • Synchronize the timebase of two or more instruments. Sample clock and frequency counter accuracy The oscilloscope’s timebase uses a built-in reference that has an accuracy of 15 ppm. This is sufficient for most uses.
Reference 15 A black locked padlock icon will appear at the top of the display. Reference signal locked 10 MHz input mode selected If the externally supplied sample clock varies greater than 0.5% from 10 MHz a soft unlock will occur. The oscilloscope will continue to acquire data but the lock symbol in the upper right part of the display will become a red unlocked padlock icon. 10 MHz unlock icon If the externally supplied sample clock signal is lost, a hard unlock will occur.
15 Reference To synchronize the timebase of two or more instruments The oscilloscope can output it’s 10 MHz system clock for the purpose of synchronization with other instruments. 1 Connect a BNC cable to the BNC connector labeled 10 MHz REF on the rear panel of the oscilloscope. 2 Connect the other end of the BNC cable to the instrument(s) that will accept the 10 MHz reference signal. Put a 50 termination at the input to the other instrument to terminate the signal.
15 Reference Binary Data (.bin) Format The binary data format stores waveform data in binary format and provides data headers that describe that data. Because the data is in binary format, the size of the file is approximately 5 times smaller than the ASCII XY format. If more than one source is on, all displayed sources will be saved, except math functions. When using segmented memory, each segment is treated as a separate waveform.
15 Reference Agilent provides the .m files, which need to be copied into the work directory for MATLAB. The default work directory is C:\MATLAB7\work. Binary Header Format File Header There is only one file header in a binary file. The file header consists of the following information. Cookie Two byte characters, AG, that indicate the file is in the Agilent Binary Data file format. Version File Size Two bytes that represent the file version.
Reference Number of Waveform Buffers 15 A 32-bit integer that is the number of waveform buffers required to read the data. Points A 32-bit integer that is the number of waveform points in the data. Count A 32-bit integer that is the number of hits at each time bucket in the waveform record when the waveform was created using an acquisition mode like averaging. For example, when averaging, a count of four would mean every waveform data point in the waveform record has been averaged at least four times.
15 Reference Y Units A 32-bit integer that identifies the unit of measure for Y values in the acquired data. The possible values are listed above under “X Units”. Date A 16-byte character array, left blank in InfiniiVision oscilloscopes. Time A 16-byte character array, left blank in the InfiniiVision oscilloscopes. Frame A 24 byte character array that is the model number and serial number of the oscilloscope in the format of: MODEL#:SERIAL#.
Reference 15 Buffer Size A 32-bit integer that is the size of the buffer required to hold the data points. Example Program for Reading Binary Data To find an example program for reading binary data, direct your web browser to www.agilent.com/find/7000sw, and select “Example Program for Reading Binary Data”.
15 Reference Examples of Binary Files Single Acquisition Multiple Analog Channels The following picture shows a binary file of a single acquisition with multiple analog channels.
Reference 15 Single Acquisition All Pods Logic Channels The following picture shows a binary file of a single acquisition with all pods for the logic channels saved.
15 Reference File Header 12 bytes Waveform Header 1 140 bytes Waveform Data Header 1 12 bytes Number of Waveforms = N = Number of Segments Number of Waveform Buffers = 1 Index = 1 Time Tag = 0.
Reference 15 CSV and ASCII XY files CSV and ASCII XY file structure In CSV or ASCII XY format the Length control selects the number of points per segment. All segments are contained in the CSV file or in each ASCII XY data file. For example: If the Length control is set to 1000 points, there will be 1000 points (rows in the spreadsheet) per segment. When saving all segments there are three header rows, so the data for the first segment starts at row 4. The second segment’s data starts at row 1004.
15 Reference Acknowledgements RealVNC is licensed under the GNU General Public License. Copyright (C) 2002-2005 RealVNC Ltd. All Rights Reserved. This is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.
Reference 15 To return the instrument Before shipping the oscilloscope to Agilent Technologies, contact your nearest Agilent Technologies sales or service office for additional details. Information on contacting Agilent Technologies can be found at www.agilent.com/find/contactus. 1 Write the following information on a tag and attach it to the oscilloscope.
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Index Symbols (-)Width measurement, 202 (+)Width measurement, 202 Numerics 1 M ohm input impedance, 61 10 MHz reference clock, 406 1-2 math function, 228 232 Option, 24, 400 50 ohm input impedance, 61 553 Option, 400 A About Oscilloscope, 400 AC adapter, 52 AC channel coupling, 61 accessories, 28, 34, 36 acquire, 261, 267 acquisition mode, 265 averaging, 267 high resolution, 266 normal, 265 peak detect, 266 acquisition modes, 261 acquisition option realtime, 269 active probes, 74 active serial bus, 299, 3
Index calibration protect switch 5000 Series, 362 6000 Series, 364 6000-BAT Series, 364, 366 7000 Series, 367 calibration status, 287 CAN decode source channels, 297 CAN frame counter, 299 CAN serial decode, 295, 302 CAN Signals Menu, 296 CAN totalizer, 299 CAN trigger, 98 CAN trigger types, additional, 98 capture signal bursts, 271 caution indicator, 50 Center, FFT, 239 channel analog, 59 bandwidth limit, 62 coupling, 61 fine adjustment, 60 invert, 62 on/off keys, 358 position, 60 probe units, 62 skew, 63
Index EEPROM data read, I2C trigger, 117 energy of a pulse, 232 Entry knob, 53, 176, 360 event table, 293 expand about, 60, 187 expand about center, 187 expand about ground, 187 exporting waveform, 247 external memory device, 357 external timebase, 406 external trigger, 92 input impedance, 93, 94 probe attenuation, 92 probe settings, 92 probe units, 93 Extinction Ratio measurement, 207 eye diagrams, 269 F f(t), 225 factory default configuration, 392 Fall time measurement, 201 feet, 36 FFT measurements, 23
Index invert, 62 invert graticule colors, 251 IP address, 275, 277 J Japanese GUI, 56 K keys, 53 5000/6000 Series, 352, 353 6000L Series, 354 7000 Series, 355, 356 Knob softkey, 69 knobs 5000/6000 Series, 352, 353 6000L Series, 354 7000 Series, 355, 356 Korean GUI, 56 L label key, 358 label list, 186 label list, loading from text file, 185 labels, 183 auto-increment, 185 default library, 186 LAN connection, 276, 277 LAN reset, 278 LAN Settings softkey, 277 LAN status indicator, 361 landscape mode, 246 l
Index new label, 184 noise high-frequency, 88, 89 low-frequency, 89 noise rejection, 89 normal acquire mode, 265 normal horizontal mode, 64 normal mode, 265 Normal trigger mode, 84, 85, 359 Nth Edge 2, 147 Nth Edge 2 (no re-find), 147 Nth edge burst trigger, 135 Nth edge burst triggering, 135 O option SEC, 402 options, print, 245 output trigger, 95 overlay, localized, 40 Overshoot measurement, 212 overshoot measurements, 193 overvoltage category, 405 P palette, 252 pan and zoom, 179 parts, replacement, 3
Index replacement parts, 389 reset LAN, 278 restart condition, I2C trigger, 117 return instrument for service, 419 Rise time measurement, 201 RMS measurement, 208 roll mode, 68 RS232 trigger, 166 run controls, 359 Run/Stop key, 262 runt pulses, 201 S safety warning, 76 sample clock, 10 MHz, 406 sample rate, 22, 23, 266, 269 current rate displayed, 64 save browse to destination, 248 execution time, 253 settings, 251 save file, 257 save segment, 253 Save to, 248 save trace to scope memory, 256 to USB, 255 s
Index totalizer, UART/rs232, 334 trace save to scope memory, 256 save to USB, 255 tracking cursors, 215 transient withstand capability, 404 Trig’d trigger indicator, 85 Trig’d? trigger indicator, 85 trigger coupling, 87 definition, 83 external, 92 general information, 83 holdoff, 90 list of trigger types, 96 mode - auto or normal, 84 mode/coupling, 84 source, 105 trigger controls, 359 trigger indicator Auto, 85 Auto?, 85 Trig’d, 85 Trig’d?, 85 trigger level, 86 trigger mode auto, 84, 85 normal, 84, 85 Trig
Index waveform cursor tracking, 215 intensity, 180 keys, 358 printing, 244 recall, 256 reference point, 187 save options, 251 save to scope memory, 256 save to USB, 255 saving and exporting, 247 Width - measurement, 202 Width + measurement, 202 Window, FFT, 238 www, 258 X X at Max Y measurement, 202 X at Max Y on FFT, 199 X at Min Y measurement, 202 X at Min Y on FFT, 199 XY mode, 69, 220 Z Z-axis blanking, 69, 222 zoom and pan, 179 Zoom mode, 66 zoomed time base measurement window, 68 428 InfiniiVisio
