PicoScope 6 PC Oscilloscope Software User's Guide psw.en-26 Copyright © 2007-2012 Pico Technology Ltd. All rights reserved.
PicoScope 6 User's Guide I Table of Contents 1 Welcome ....................................................................................................................................1 2 PicoScope 6....................................................................................................................................2 overview 3 Introduction....................................................................................................................................
II Table of Contents 26 Buffer Navigator ........................................................................................................................................33 6 Menus ....................................................................................................................................34 1 File menu ........................................................................................................................................35 1 Save As dialog................
PicoScope 6 User's Guide III ........................................................................................................................................146 10 Zooming and Scrolling toolbar ......................................................................................................................................................................147 1 Zoom Overview 8 How to.................................................................................................................
PicoScope 6 User's Guide 1 1 Welcome Welcome to PicoScope 6, the PC Oscilloscope software from Pico Technology. With a scope device from Pico Technology, PicoScope 9 turns your PC into a powerful PC Oscilloscope 9 with all the features and performance of a bench-top oscilloscope 8 at a fraction of the cost. How to use this manual 5 What's new in this version? 2 Using PicoScope for the first time 7 psw.en-26 : 16.7.12, PicoScope Release 6.6 Copyright © 2007-2012 Pico Technology Ltd.
2 2 PicoScope 6 overview PicoScope 6 overview PicoScope 6 is a major new release of PicoScope, Pico Technology's software for PC Oscilloscopes. Higher performance Faster capture rates, making it easier to see fast-moving signals Faster data processing Better support for the latest PicoScope USB oscilloscopes Improved usability and appearance Clearer graphics and text Tool tips and help messages to explain all features Easy point-and-click tools for panning and zooming New features The latest Windows .
PicoScope 6 User's Guide 3 3 Introduction PicoScope is a comprehensive software application for Pico Technology PC Oscilloscopes. Used with an oscilloscope device from Pico Technology, it creates a virtual oscilloscope, spectrum analyzer and multimeter on your PC. PicoScope 6 supports the devices listed in the Device feature table. 183 It runs on any computer with Windows XP SP2 or later, Windows Vista or Windows 7. (See System requirements 6 for further recommendations.
4 3.1 Introduction Legal statement Grant of license. The material contained in this release is licensed, not sold. Pico Technology Limited ('Pico') grants a license to the person who installs this software, subject to the conditions listed below. Access. The licensee agrees to allow access to this software only to persons who have been informed of and agree to abide by these conditions. Usage. The software in this release is for use only with Pico products or with data collected using Pico products.
PicoScope 6 User's Guide 3.4 3.5 5 Contact information Address: Pico Technology James House Colmworth Business Park ST. NEOTS Cambridgeshire PE19 8YP United Kingdom Phone: Fax: +44 (0) 1480 396395 +44 (0) 1480 396296 Office hours: 09:00 to 17:00 Mon-Fri Technical support email: Sales email: support@picotech.com sales@picotech.com Web site: www.picotech.
6 3.6 Introduction System requirements To ensure that PicoScope operates correctly, you must have a computer with at least the minimum system requirements to run your Windows operating system, which must be one of the versions listed in the following table. The performance of the oscilloscope will be better with a more powerful PC, and will benefit from a multi-core processor.
PicoScope 6 User's Guide 4 7 Using PicoScope for the first time We have designed PicoScope to be as easy as possible to use, even for newcomers to oscilloscopes. Once you have followed the introductory steps listed below, you will soon be on your way to becoming a PicoScope expert. 1. Install the software. Load the CD-ROM that is included with your scope device, then click the "Install Software" link and follow the on-screen instructions. 2. Plug in your scope device.
8 5 PicoScope and oscilloscope primer PicoScope and oscilloscope primer This chapter explains the fundamental concepts that you will need to know before working with the PicoScope software. If you have used an oscilloscope before, then most of these ideas will be familiar to you. You can skip the Oscilloscope basics 8 section and go straight to the PicoScope-specific information 9 .
PicoScope 6 User's Guide 5.2 9 PC Oscilloscope basics A PC Oscilloscope is a measuring instrument that consists of a hardware scope device and an oscilloscope program running on a PC. Oscilloscopes were originally stand-alone instruments with no signal processing or measuring abilities, and with storage only available as an expensive extra. Later oscilloscopes began to use new digital technology to introduce more functions, but they remained highly specialised and expensive instruments.
10 5.3.1 PicoScope and oscilloscope primer Capture modes PicoScope can operate in three capture modes: scope mode, spectrum mode and persistence mode. The mode is selected by buttons in the Capture Setup Toolbar 120 . In scope mode, PicoScope displays a main scope view, 13 optimises its settings for use as a PC Oscilloscope, and allows you to directly set the capture time. You can still display one or more secondary spectrum views.
PicoScope 6 User's Guide 5.3.2 11 How do capture modes work with views? The capture mode 10 tells PicoScope whether you are mainly interested in viewing waveforms (scope mode 10 ) or frequency plots (spectrum mode 10 ). When you select a capture mode, PicoScope sets up the hardware appropriately and then shows you a view that matches the capture mode (a scope view 13 if you selected scope mode or persistence mode 20 , or a spectrum view 19 if you selected spectrum mode).
12 5.4 PicoScope and oscilloscope primer PicoScope window The PicoScope window shows a block of data captured from the scope device 189 . When you first open PicoScope it contains one scope view 13 , but you can add more views by clicking Add view in the Views menu 43 . The screen shot below shows all the main features of the PicoScope window. Click on the underlined labels for more information.
PicoScope 6 User's Guide 5.5 13 Scope view A scope view shows the data captured from the scope as a graph of signal amplitude against time. (See Oscilloscope basics 8 for more on these concepts.) PicoScope opens with a single view, but you can add more views by using the views menu 43 . Similar to the screen of a conventional oscilloscope, a scope view shows you one or more waveforms with a common horizontal time axis, with signal level shown on one or more vertical axes.
14 5.6 PicoScope and oscilloscope primer MSO view Applicability: mixed-signal oscilloscopes (MSOs 188 ) only The MSO view shows mixed analog and digital data on the same timebase. Digital Inputs button 113 : Switches digital view Digital Setup dialog. 113 psw.en 15 on and off, and opens the Analog view: Shows the analog channels. The same as a standard scope view 13 . Digital view: Shows the digital channels and groups.
PicoScope 6 User's Guide 5.6.1 15 Digital view Location: MSO view 14 N ote 1: You can right-click on the d ig ital view to obtain the Digital Context Menu. 16 N ote 2: If the d ig ital view is not visible w hen required, check that (a) the Digital Inputs button 113 is activated and (b) at least one digital channel is selected for display in the Digital Setup dialog 113 . Digital channel: Displayed in the order in which they appear in the Digital Setup dialog 113 , where they can be renamed.
16 5.6.2 PicoScope and oscilloscope primer Digital context menu Location: right-click on digital view 15 Sub View: Analog: View or hide the analog scope view. 13 Digital: View or hide the digital scope view. 15 Also available from the Views menu. Format: The numerical format in which group values are displayed in the digital scope view.
PicoScope 6 User's Guide 5.7 17 XY view An XY view, in its simplest form, shows a graph of one channel plotted against another. XY mode is useful for showing phase relationships between periodic signals (using Lissajous figures) and for plotting I-V (current-voltage) characteristics of electronic components. In the example above, two different periodic signals have been fed into the two input channels. The smooth curvature of the trace tells us that the inputs are roughly or exactly sine waves.
18 5.8 PicoScope and oscilloscope primer Trigger marker The trigger marker shows the level and timing of the trigger point. The height of the marker on the vertical axis shows the level at which the trigger is set, and its position on the time axis shows the time at which it occurs. You can move the trigger marker by dragging it with the mouse or, for more accurate control, by using the buttons on the Triggering toolbar 137 .
PicoScope 6 User's Guide 5.10 19 Spectrum view A spectrum view is one view of the data from a scope device. A spectrum is a diagram of signal level on a vertical axis plotted against frequency on the horizontal axis. PicoScope opens with a scope view, but you can add a spectrum view by using the views menu 43 . Similar to the screen of a conventional spectrum analyser, a spectrum view shows you one or more spectra with a common frequency axis.
20 5.11 PicoScope and oscilloscope primer Persistence mode Persistence mode superimposes multiple waveforms on the same view, with more frequent data or newer waveforms drawn in brighter colors than older ones. This is useful for spotting glitches, when you need to see a rare fault event hidden in a series of repeated normal events. Enable persistence mode by clicking the Persistence Mode button on the Capture Setup toolbar 120 .
PicoScope 6 User's Guide 5.12 21 Measurements table A measurements table displays the results of automatic measurements. Each view 13 can have its own table, and you can add, delete or edit measurements from this table. Measurements table columns Name The name of the measurement that you selected in the Add Measurement 46 or Edit Measurement 46 dialog. An "F" after the name indicates that the statistics for this measurement are filtered 48 .
22 5.13 PicoScope and oscilloscope primer Resolution enhancement Resolution enhancement is a technique for increasing the effective vertical resolution of the scope at the expense of high-frequency detail. Selecting resolution enhancement does not change the scope's sampling rate or the number of samples available.
PicoScope 6 User's Guide 23 Quantifying Resolution Enhancement The table below shows the size of the moving-average filter for each resolution enhancement setting. A bigger filter size requires a higher sampling rate to represent a given signal without significant side-effects (as detailed above). Resolution enhancement e (bits) 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 Number of values n 2 4 8 16 32 64 128 256 Example. Your scope device is a PicoScope 5204 (resolution = 8 bits).
24 5.15 PicoScope and oscilloscope primer Signal rulers The signal rulers (sometimes called cursors) help you measure absolute and relative signal levels on a scope 13 , XY 17 or spectrum view 19 . In the scope view 13 above, the two colored squares to the left of the vertical axis are the ruler drag-handles for channel A. Drag one of these downwards from its resting position in the top left corner, and a signal ruler (a horizontal dashed line) will extend from it.
PicoScope 6 User's Guide 5.16 25 Time rulers The time rulers measure time on a scope view . 13 or frequency on a spectrum view 19 In the scope view 13 above, the two white squares on the time axis are the time ruler handles. When you drag these to the right from the bottom left corner, vertical dashed lines called time rulers appear. The rulers work in the same way on a spectrum view 19 , but the ruler legend shows their horizontal positions in units of frequency rather than time.
26 5.17 PicoScope and oscilloscope primer Ruler legend The ruler legend is a box that displays the positions of all the rulers 24 you have placed on the view 189 . It appears automatically whenever you position a ruler on the view: Editing You can adjust the position of a ruler by editing any value in the first two columns. To insert a Greek µ (the m icro symbol, meaning one millionth or x 10-6), type the letter 'u'.
PicoScope 6 User's Guide 5.19 27 Properties sheet Location: Views > View Properties menu command Purpose: shows a summary of the settings that PicoScope 6 is using The Properties sheet appears on the right-hand side of the PicoScope window. Window. The window function 172 applied to the data before computing the spectrum. This is selected in the Spectrum options dialog 122 . Time gate. The number of samples that PicoScope uses to compute a spectrum is equal to twice the number of bins.
28 5.21 PicoScope and oscilloscope primer Maths channels A maths channel is a mathematical function of one or more input signals. The function can be as simple as "Invert A", replacing the Invert button on a conventional oscilloscope, or a complex function that you define. It can be displayed in a scope 13 , XY 17 or spectrum 19 view in the same way as an input signal, and like an input signal it has its own measurement axis, scaling and offset button 153 and color 71 .
PicoScope 6 User's Guide 5.22 29 Reference waveforms A reference waveform is a stored copy of an input signal. You can create one by right-clicking on the view, selecting the Reference Waveforms command and selecting which channel to copy. It can be displayed in a scope or spectrum view in the same way as an input signal, and like an input signal it has its own measurement axis, scaling and offset button 153 and color 75 .
30 5.23 PicoScope and oscilloscope primer Serial decoding You can use PicoScope to decode data from a serial bus such as I2C or CAN Bus. Unlike a conventional bus analyzer, PicoScope lets you see the high-resolution electrical waveform at the same time as the data. The data is integrated into the scope view, so there's no need to learn a new screen layout. How to use Serial Decoding 1. Select the Tools 49 > Serial Decoding menu command. 2. Complete the Serial Decoding dialog 76 . 3.
PicoScope 6 User's Guide 5.24 31 Mask limit testing Mask limit testing is a feature that tells you when a waveform or spectrum goes outside a specified area, called a mask, drawn on the scope view 13 or spectrum view 19 . PicoScope can draw the mask automatically by tracing a captured waveform, or you can draw it manually. Mask limit testing is useful for spotting intermittent errors during debugging, and for finding faulty units during production testing.
32 5.25 PicoScope and oscilloscope primer Alarms Alarms are actions that PicoScope can be programmed to execute when certain events occur. Use the Tools > Alarms command to open the Alarms dialog 84 , which configures this function. The events that can trigger an alarm are: Capture - when the oscilloscope has captured 10 a complete waveform or block of waveforms. Buffers Full - when the waveform buffer 106 becomes full. Mask(s) Fail - when a waveform fails a mask limit test 31 .
PicoScope 6 User's Guide 5.26 33 Buffer Navigator The PicoScope waveform buffer can hold up to 10,000 waveforms, subject to the amount of available memory in the oscilloscope. The Buffer Navigator helps you to scroll through the buffer quickly to find the waveform you want. To begin, click the Buffer Navigator button in the Buffer Navigation toolbar 106 .
34 6 Menus Menus Menus are the quickest way to get to PicoScope's main features. The Menu bar is always present at the top of the PicoScope main window, just below the window's title bar. You can click any of the menu items, or press the Alt key and then navigate to the menu using the arrow keys, or press the Alt key followed by the underlined letter in one of the menu items. The list of items in the menu bar may vary depending on the windows that you have open in PicoScope. psw.
PicoScope 6 User's Guide 6.1 35 File menu Location: Menu bar Purpose: gives access to file input and output operations 34 > File Connect Device. This command appears only when there is no scope device connected. It opens the Connect Device dialog 102 , which allows you to select the scope device you wish to use. Open. Allows you to select the file you want to open. PicoScope can open . psdata and .psd files, which contain both waveform data and scope device settings, and .pssettings and .
36 Menus Print. Opens a standard Windows Print dialog, which allows you to choose a printer, set printing options and then print the selected view. Recent Files. A list of recently opened or saved files. This list is compiled automatically, but you can clear it using the Files page of the Preferences dialog. 90 Exit. Close PicoScope without saving any data. 6.1.
PicoScope 6 User's Guide 37 CSV (Comma delimited) files (.csv) Stores waveforms as a text file with commaseparated values. This format is suitable for importing into spreadsheets such as Microsoft Excel. The first value on each line is the time stamp, and it is followed by one value for each active channel, including currently displayed math channels. (Details) 38 Text (Tab delimited) files (.txt) Stores waveforms as a text file with tabseparated values.
38 6.1.1.
PicoScope 6 User's Guide 39 Note. CSV files are not the best choice of format if you are working in a language that uses the comma character as the decimal point. Instead, try using the tab-delimited format which works in almost the same way. Tab-delimited Tab-delimited files store data in the following format: Time (µs) 500.004 -500.002 -500 Channel A (V) 5.511 4.724 5.552 Channel B (V) 1.215 2.130 2.
40 Menus The order of the data blocks is not specified, so programs should look at the variable names to decide which variable is currently being loaded. The header The file consists of a number of data blocks preceded by 20-byte headers. Each header contains five 32-bit integers (as described in the table below).
PicoScope 6 User's Guide 6.1.2 41 Startup Settings menu Location: Menu bar Purpose: allows you to load, save and restore the PicoScope 6 startup settings 34 > File 35 > Startup Settings Save Startup Settings. Saves your current settings ready for when you next select Load Startup Settings. These settings are remembered from one session of PicoScope 6 to the next. Load Startup Settings. Returns to the settings you created with the Save Startup Settings command. Reset Startup Settings.
42 6.2 Menus Edit menu Location: Menu bar Purpose: gives access to the clipboard-related and note editing functions 34 > Edit Copy as Image. Copies the active view to the clipboard as a bitmap. You can then paste the image into any application that accepts bitmap images. Copy as Text. Copies the data in the active view to the clipboard as text. You can paste the data into a spreadsheet or other application. The text format is the same as that used by the Save As dialog 36 when you select the .
PicoScope 6 User's Guide 6.3 43 Views menu Location: Menu bar a view 189 Purpose: controls the layout of the current view 189 , which is a rectangular area of the PicoScope window that display scope, spectrum or other kinds of data 34 > Views, or right-click on The contents of the Views menu may vary depending on where you click and how many views are open. If the current view contains a Measurements table 21 , a combined Measurements menu 45 and Views menu will appear.
44 Menus Grid Layout: The grid layout defaults to "Automatic" mode, in which PicoScope automatically arranges views in a grid. You can also select one of the standard grid layouts or create a custom layout, which PicoScope will preserve as you add or remove views. Arrange Grid Layout: Adjust the grid layout to fit the number of views. Moves any tabbed views to empty viewports. Overrides any previous choice of grid layout.
PicoScope 6 User's Guide 6.4 45 Measurements menu Location: Menu bar Purpose: controls the Measurements table 34 > Measurements 21 Add measurement. Adds a row to the measurements table 21 , and opens the Edit Measurement Dialog 46 . You can also find this button on the Measurements toolbar 126 . Edit measurement. This takes you to the Edit Measurement Dialog 46 .
46 6.4.1 Menus Add / Edit Measurement dialog Location: Purpose: Measurements toolbar 126 > Add Measurement or Edit Measurement button Add Measurement or Edit Measurement Views menu 43 > button Double-click a measurement in the measurements table 21 allows you to add a measurement of a waveform to the selected view, or edit an existing measurement 189 PicoScope automatically refreshes the measurement every time it updates the waveform.
PicoScope 6 User's Guide 6.4.2 47 Advanced measurement settings Location: Add Measurement Purpose: adjusts parameters of certain measurements such as filtering and spectrum analysis 19 46 or Edit Measurement dialog > Advanced Threshold Some measurements, such as Rise Time and Fall Time, can be made using different thresholds. Select the appropriate ones here. When comparing rise and fall times with manufacturers' specifications, it is important to use the same thresholds for all measurements.
48 psw.en Menus Filter control PicoScope can low-pass filter the statistics to produce more stable and more accurate numbers. Filtering is not available on all measurement types. Enable Filter - check to enable low-pass filtering, if available. An "F" will appear after the measurement name in the measurements table 21 . Automatic - check to set the low-pass filter characteristics automatically Cutoff Frequency The filter cut-off frequency normalised to the measurement rate. Range: 0 to 0.5.
PicoScope 6 User's Guide 6.5 49 Tools menu Location: Menu bar Purpose: gives access to assorted tools for signal analysis 34 Custom Probes existing ones. > Tools 27 : Define new probes and copy, delete, move and edit Maths Channels 28 : Add or edit a channel that is a mathematical function of one or more other channels. Reference Waveforms existing channel. Serial Decoding such as CAN bus.
50 6.5.1 Menus Custom Probes dialog Location: Tools ( Purpose: 49 > Custom Probes, or click the Channel Options button ) allows you to select predefined probes and set up custom probes 27 The selection of probes shown may vary depending on the version of the PicoScope software that you are using. Understanding the probe list All the probes that PicoScope knows about are listed under three main headings: Built-in, Library and Loaded.
PicoScope 6 User's Guide 51 Adding a new probe to your library There are three ways to create a new probe: 1. Use the Duplicate button as described above. 2. Click New Probe... to define a new probe. 3. Click Import to load a probe definition from a *.psprobe file and add it to your library. These files are normally supplied by Pico, but you can also create your own by defining a new probe and then clicking Export. Methods 2 and 3 open the Custom Probe Wizard definition process. 6.5.1.
52 6.5.1.1.2 Menus Edit Existing Custom Probe dialog Location: Custom Probes dialog Purpose: introduces you to the process for editing an existing custom probe 50 > Edit 27 How to use the dialog Click Next to continue to the Probe Output Units dialog custom probe. 53 , where you can edit the Click Jump forward... if you have already set up the custom probe's basic characteristics and want to add or change a custom range manually. psw.en Copyright © 2007-2012 Pico Technology Ltd.
PicoScope 6 User's Guide 6.5.1.1.3 53 Probe Output Units dialog Location: Create new Custom Probe dialog Purpose: allows you to choose the units that PicoScope will use to display the output of your custom probe 27 51 > Next How to use the dialog To choose a standard SI unit, click Use a standard unit from the list and select one from the list. To enter a custom unit, click Use the custom unit defined below and type the unit name and symbol. Click Next to continue to the Scaling Method dialog 54 .
54 6.5.1.1.4 Menus Scaling Method dialog Location: Probe Output Units dialog Purpose: allows you to define the characteristic that PicoScope will use to convert the custom probe 27 's voltage output to a measurement on the display 53 > Next How to use the dialog If you do not require any scaling or offset, click the Don't apply any scaling button.
PicoScope 6 User's Guide 6.5.1.1.4.1 55 Lookup-table Scaling dialog Location: Purpose: Scaling Method dialog Lookup Table... 54 > Create a Look-up Table or Edit the creates a look-up table to calibrate a custom probe 27 Editing the Look-up Table First, select suitable values in the Input units and Scaled units drop-down boxes.
56 6.5.1.1.5 Menus Range Management dialog Location: Purpose: Scaling Method dialog 54 > Next allows you to override PicoScope's automatic range-creation feature for custom probes. In most cases, the automatic procedure will be sufficient. How to use the dialog If you select Let the software manage my ranges for me automatically, then clicking Next will take you to the Custom Probe Identification dialog 62 . PicoScope's automatic ranges should be ideal for most applications.
PicoScope 6 User's Guide 6.5.1.1.6 57 Manual Ranges Setup dialog Location: Range Management dialog Purpose: creates ranges manually for your custom probe 56 > Advanced > Next 27 How to use the dialog If you wish, you can click Auto Generate Ranges and the program will create a number of ranges for the selected device. This will create the same list of ranges that you would have obtained by selecting Let the software manage my ranges for me automatically in the previous dialog.
58 6.5.1.1.6.1 Menus Edit Range dialog Location: Manual Ranges Setup dialog Purpose: editing a manual range for a custom probe 57 > Edit or New Range 27 Automatic mode If you leave the "Automatic" radio button pressed, the program will automatically determine the best hardware input range for the device as you change the Scaled range limits. This is the best mode to use for almost all ranges.
PicoScope 6 User's Guide 59 The range utilisation bar This diagram at the bottom of the dialog shows how well the input range of the device is matched to the scaled range. Green - The section of the input range that is used by the scaled range. This should be as large as possible, to maximise the use of the scope device's resolution. Blue - Areas of the input range that are not being used. These indicate wasted resolution. Grey - Parts of the scaled range that are not covered by the input range.
60 6.5.1.1.6.2 Menus Edit Range dialog (Advanced tab) Location: Manual Ranges Setup dialog tab Purpose: configuring advanced options for custom probes 57 > Edit or New Range > Advanced 27 These options are for factory use and we recommend that you do not change them. Finishing Clicking OK or Cancel will return you to the Manual Ranges Setup dialog psw.en 57 . Copyright © 2007-2012 Pico Technology Ltd. All rights reserved.
PicoScope 6 User's Guide 6.5.1.1.7 61 Filter Method dialog Location: Manual Ranges Setup dialog Purpose: sets up lowpass filtering for this custom probe 57 > Next This dialog has the same effect as manually enabling the Lowpass Filtering 111 option in the Channel Options dialog 108 . Filtering will only occur if the attached scope device supports filtering. Back: Go to the Manual Range Setup dialog 57 Next: Go to the Custom Probe Identification dialog Copyright © 2007-2012 Pico Technology Ltd.
62 6.5.1.1.8 Menus Custom Probe Identification dialog Location: Range Management dialog Purpose: entering text to identify the custom probe 56 > Next 27 How to use the dialog Click Back to return to the Filter Method dialog 61 . The probe name will appear in the probe list. The description is not used in the present version of the software. Fill in the text fields and click Next to continue to the Custom Probe Finished dialog. 63 psw.en Copyright © 2007-2012 Pico Technology Ltd.
PicoScope 6 User's Guide 6.5.1.1.9 63 Custom Probe Finished dialog Location: Custom Probe Identification dialog 62 Purpose: signals the end of the custom probe setup procedure 27 > Next How to use the dialog Click Back to return to the Custom Probe Identification dialog 62 . Click Finish to accept your custom probe settings and return to the Custom Probes dialog 50 . Copyright © 2007-2012 Pico Technology Ltd. All rights reserved. psw.
64 6.5.2 Menus Math Channels dialog Location: Menu bar Purpose: creating 66 , editing 66 and controlling math channels 28 , which are virtual channels generated by mathematical functions of input channels Math Channel list 34 > Tools 49 > Math Channels 28 The main area of the Math Channels dialog is the Math Channel list, which shows all the built-in, library and loaded maths channels 28 .
PicoScope 6 User's Guide 65 Edit Opens the Math Channel Wizard 66 to allow you to edit the selected maths channel. You must first select a channel in the Library section of the Math Channel list. If the channel you want to edit is in the Built In or Loaded section, first copy it to the Library section by clicking Duplicate, then select it and click Edit. Delete Permanently deletes the selected math channel. Only math channels in the Library section can be deleted.
66 6.5.2.1 Menus Math Channel Wizard Location: Channel Setup toolbar 107 > Math Channels button Purpose: creating, editing and controlling math channels, which are virtual channels generated by mathematical functions of input channels 1. Introduction 2. Equation 67 68 3. Channel name 71 4. Units and range 5. Finished psw.en 72 73 Copyright © 2007-2012 Pico Technology Ltd. All rights reserved.
PicoScope 6 User's Guide 6.5.2.1.1 67 Math Channel Wizard Introduction dialog Location: Math Channels dialog 64 > Create (if you have not ticked the "Don't show me this introduction page again" check box) Purpose: introduces the Math Channel Wizard Copyright © 2007-2012 Pico Technology Ltd. All rights reserved. 66 psw.
68 6.5.2.1.2 Menus Math Channel Wizard Equation dialog Location: Math Channel Wizard Purpose: allows you to enter or edit the equation for a math channel 28 . You can type directly into the equation box, or click the calculator buttons and let the program insert the symbols for you. A red error indicator will appear to the right of the equation box if the equation contains a syntax error.
PicoScope 6 User's Guide 69 Advanced view Clicking the Advanced button reveals more function buttons, including trigonometric functions and logarithms. Maths Channel Wizard Equation dialog, advanced view Advanced buttons Button Equation sqrt() Description Square root ^ Power. Raise x to the power of y. ln() Natural logarithm abs() Absolute value freq() Frequency. Calculated in hertz. norm() Normalise.
70 Menus max() sin() Maximum. Positive peak detect of all previous waveforms. Average. Arithmetic mean of all previous waveforms. Peak detect. Display maximum-to-minimum range of all previous waveforms. Pi. The ratio of a circle's circumference to its diameter. Inverse. Modifies the sin, cos and tan buttons to asin, acos and atan. Sine. The operand is in radians. cos() Cosine. The operand is in radians. tan() Tangent. The operand is in radians. 0..9 0 to 9. The decimal digits. .
PicoScope 6 User's Guide 6.5.2.1.3 71 Math Channel Wizard Name dialog Location: Maths Channel Wizard Purpose: allows you to enter or edit the name and color of a maths channel 66 28 PicoScope initially sets the name to the text of the equation, but you can edit it to anything you like. The name will appear in the channel list in the Maths Channels dialog 64 .
72 6.5.2.1.4 Menus Math Channel Wizard Units and Range dialog Location: Maths Channel Wizard Purpose: allows you to specify the measurement units and the range of values to display for a maths channel 28 66 Units, Long Name: This is for your reference only. Units, Short Name: This will be displayed on the measurement axis in scope spectrum 19 views, in the ruler legend 26 and in the measurements table 21 .
PicoScope 6 User's Guide 6.5.2.1.5 73 Math Channel Wizard Finished dialog Location: Maths Channel Wizard Purpose: shows you the settings for the maths channel created or edited 66 28 that you have just Back. Click this button to return to previous dialogs in the Maths Channel Wizard if you wish to change any of the settings. 66 Finish. Click this button to accept the settings shown and return to the Maths Channels dialog 64 .
74 6.5.3 Menus Reference Waveforms dialog Location: Tools Purpose: enables you to create, edit 75 and control reference waveforms which are stored copies of input channels 49 > Reference Waveforms 29 29 , Reference The main area of the Reference Waveforms dialog is the Waveforms list Reference Waveforms list, which shows all the available input channels and the library and loaded reference waveforms 29 .
PicoScope 6 User's Guide 6.5.3.1 75 Delete Permanently deletes the selected reference waveform. Only reference waveforms in the Library section can be deleted. Duplicate Creates a copy of the selected input channel or reference waveform. The copy is placed in the Library section, from where you can edit it by clicking Edit. A quicker way to do the same thing is to right-click on the view, select Reference Waveforms and then click the channel that you wish to copy. Import Opens a .
76 6.5.4 Menus Serial Decoding dialog Location: Tools Purpose: lets you choose which channels to use for serial decoding other options 49 > Serial Decoding 30 and set The following formats are supported: I²C 179 CAN Bus 175 LIN 177 RS232 (UART) 181 SPI 182 Protocols table This is where you select which channels to decode, and what serial protocol to use for each channel. All the available channels are listed in the Channels column.
PicoScope 6 User's Guide 77 Select the protocol you wish to use. A Settings panel for the selected channel will then appear below the table in the dialog. Settings panel The settings panel shows all the adjustable settings for the selected channel. The options available depend on the protocol selected: see Common settings 77 and Protocol-specific settings 77 . Information panel You do not need to take action on the messages in this panel.
78 Menus Clock Channel. Which channel is connected to the SCL signal. Clock Threshold. The threshold voltage to use for the SCL signal. Data Threshold. The threshold voltage to use for the SDA signal. Settings. Opens the I²C Settings dialog 82 . RS232/UART 181 settings Threshold. A voltage halfway between the high and low logic levels. If you are not sure, set this to halfway between the maximum and minimum voltages that you see on the waveform. Baud Rate.
PicoScope 6 User's Guide 6.5.4.3 79 Serial Data window Location: Channels toolbar 107 > Serial Decoding button > select In Window in the Serial Decoding dialog 76 Purpose: shows decoded serial data 30 in alphanumeric format and allows advanced filtering and searching For more information on the format of the table for each serial protocol, see Serial protocols 175 . If you also selected In View in the Serial Decoding dialog 76 , the data will also appear in graphical form on the scope view.
80 Menus Creates a new link file. Use a text editor to add your own number-string pairs, save the file, and then open it using the drop-down control. psw.en Start from... Use this button to enter a condition that PicoScope will wait for before collecting data. When PicoScope detects a packet that matches this condition, it will collect all subsequent data (subject to filtering, if used - see above) and display it in the table.
PicoScope 6 User's Guide 6.5.4.4 81 UART Settings dialog Location: Serial Decoding dialog Purpose: sets up parameters of your RS232 data format so PicoScope can decode the data Signal Idle State: The state, low or high, of the signal when no data present. Data bits: The number of bits in the word. Parity: The type of error-correction bit, if any, added to each word. Stop bits: The number of extra bits used to indicate the end of a word.
82 6.5.4.5 Menus SPI Settings dialog Location: Serial Decoding dialog Purpose: sets up parameters of your SPI data format so PicoScope can decode the data 76 > select SPI format > Settings Sample Clock on: Which edge of the clock to use. Chip Select State: The polarity of the chip select (CS) signal, if used. Data bits: The number of bits in the word. Choose from the drop-down list or type a number directly into the box.
PicoScope 6 User's Guide 6.5.4.7 83 LIN Settings dialog Location: Serial Decoding dialog Purpose: defines parameters of your LIN Bus data format so that PicoScope can decode the data Signal Idle State: The voltage level that represents the idle state. Checksum: Whether to include the ID data in the checksum (Enhanced method) or not (Classic method). Bit Order: Whether the least-significant or the most-significant bit occurs first.
84 6.5.5 Menus Alarms dialog Location: Tools Purpose: gives access to the alarms feature, which specifies actions to be taken on various events Event: 49 > Alarms Select the event that will trigger the alarm: Capture: when a waveform is captured. If triggering 137 is enabled, this option corresponds to a trigger event. You can therefore use this function to save a file on each trigger event.
PicoScope 6 User's Guide 85 Stop Capture: equivalent to pressing the red Stop button. Restart Capture: equivalent to pressing the green Start button. Use only if the Stop Capture action was used earlier in the list. Run Executable: run the specified EXE, COM or BAT program file. You can type the %file% variable after the program name to pass the name of the last file saved as an argument to the program. PicoScope will stop capturing while the program runs, and resume after the program terminates.
86 6.5.6 6.5.6.1 Menus Masks menu Location: Tools Purpose: gives control over Mask Limit Testing 49 > Masks 31 Add Masks: Add a mask to the display using the Mask Library dialog Clear Mask: Remove the mask from the display. Save Mask: Save the displayed mask to disk as a .mask file. 86 . Mask Library dialog Location: Menu bar Purpose: allows you to create, export and import masks for Mask Limit Testing 34 > Tools 49 > Masks 31 psw.
PicoScope 6 User's Guide 6.5.6.2 87 Apply: Use the selected mask on the selected channel but remain in the Mask Library dialog. OK: Use the selected mask on the selected channel and return to the scope view 13 . Editing a mask To edit a mask in Mask Limit Testing select Edit Mask: 31 mode, right-click on the scope view 13 and A mask is made up of one or more shapes called polygons. Click on the polygon you wish to edit.
88 Menus To add or remove an entire polygon, right-click the scope view and select either the Add Mask Polygon or the Remove Mask Polygon command: 6.5.6.3 Generate Mask Dialog Location: Mask Library dialog Purpose: allows you to set parameters for the automatically generated mask. PicoScope will then create a new mask based on the last captured waveform. Name: PicoScope automatically chooses a name for the new mask. You can edit the name in this box.
PicoScope 6 User's Guide 6.5.7 89 Macro Recorder Location: Tools Purpose: records a sequence of commands to be replayed later 49 > Macro Recorder The Macro Recorder helps when you wish to execute a series of commands repeatedly. It saves all commands to a .psmacro file, which can be modified using an XML editor. Execute in real time: Play back the macro at the same speed as when recorded. Without this option, playback will be as fast as possible. Copyright © 2007-2012 Pico Technology Ltd.
90 6.5.8 psw.en Menus Preferences dialog Location: Menu bar Purpose: Allows you to set options for the PicoScope software. Click one of the tabs in the picture below to learn more. 34 > Tools 49 > Preferences Copyright © 2007-2012 Pico Technology Ltd. All rights reserved.
PicoScope 6 User's Guide 6.5.8.1 91 General page Location: Preferences dialog Purpose: contains general controls for PicoScope 90 Reset 'Don't show this again' dialogs Restore any missing dialogs that you asked PicoScope not to show again. Reset preferences Set all preferences back to their default values. Waveform Buffer Maximum Waveforms: This is the maximum number of waveforms that PicoScope will store in the waveform buffer 106 .
92 6.5.8.2 Menus Power management page Location: Preferences dialog Purpose: controls features of the oscilloscope that affect its power consumption 90 Capture Rate This control limits the speed at which PicoScope captures data from the scope device. The other PicoScope settings, the type of scope device 189 and the speed of the computer will all affect whether this limit can actually be reached.
PicoScope 6 User's Guide 6.5.8.3 93 Sampling page Location: Preferences dialog Purpose: controls the sampling behaviour of the oscilloscope 90 Slow Sampling Transition In normal (fast) sampling mode, PicoScope collects enough data to fill the screen and then redraws the whole view at once. This method is suitable for fast timebases, when the screen is redrawn many times each second, but with slow timebases it can cause a unacceptable delay before the data appears on the screen.
94 Menus Sin(x)/x Interpolation When the number of pixels across the scope view is greater than the number of samples in the waveform buffer, PicoScope interpolates - that is, it fills the space between the samples with estimated data. It can either draw straight lines between the samples (linear interpolation) or connect them with smooth curves (sin(x)/x interpolation).
PicoScope 6 User's Guide 6.5.8.4 95 Keyboard page Location: part of the Preferences dialog Purpose: displays, and allows you to edit, keyboard shortcuts 90 A keyboard shortcut is a combination of keys that can be pressed on the keyboard to activate a PicoScope function. Keyboard Shortcuts All available PicoScope operations and their associated keyboard shortcuts (if defined) are listed. To edit or add a keyboard shortcut: Scroll the list of PicoScope commands until the required command is visible.
96 6.5.8.5 psw.en Menus Regional & Language page Location: part of the Preferences dialog Purpose: lets you select the language and other location-dependent settings for PicoScope's user interface 90 Language Select, from the drop-down box, the language you wish to use for the PicoScope 6 user interface. PicoScope will ask you to restart the program before switching to the new language. Measurement System Select metric or U.S. units. Copyright © 2007-2012 Pico Technology Ltd. All rights reserved.
PicoScope 6 User's Guide 6.5.8.6 97 Printing page Location: part of the Preferences dialog Purpose: lets you enter the details that will appear at the bottom of printed output Default Print Settings 90 When you print a view from the File menu added to the bottom of the page. Copyright © 2007-2012 Pico Technology Ltd. All rights reserved. 35 , these details will be psw.
98 6.5.8.7 Menus Colors page Location: part of the Preferences dialog Purpose: lets you set the colors for various parts of the user interface 90 Custom Colors These controls let you specify the colors for various parts of the PicoScope screen: psw.
PicoScope 6 User's Guide Persistence 99 the three colors to use for each channel in digital color persistence mode 20 . The top color is used for the most frequently hit pixels, the middle and bottom colors for the less and least frequently hit pixels.
100 6.5.8.8 Menus Options page Location: part of the Preferences dialog Purpose: lets you set various options that control the way that PicoScope 6 works 90 Device Startup Settings Remember Last Device. This option is used when PicoScope finds more than one scope device connected to the computer. If the check box is ticked, PicoScope will attempt to use the same device that was used last time. Otherwise it will use the first device available.
PicoScope 6 User's Guide 6.6 101 Help menu Location: Menu bar Purpose: gives access to the PicoScope 6 User's Guide and related information 34 > Help User's Guide This is the main help manual, containing complete information on the program. Contents, Index and Search are shortcuts to various functions of the help viewer. Check for Updates Connect to the Pico Technology website and look for a newer version of the PicoScope software. Requires an internet connection.
102 6.7 Menus Connect Device dialog Location: Menu bar 34 > File 35 > Connect Device or plug in a new device Purpose: when PicoScope finds more than one available scope device 189 , this dialog allows you to select which one to use See "How to change to a different device 149 " if you wish to switch to a different scope device later. Procedure To restrict the selection to a particular series of devices, click on the device dropdown box and select a device series; otherwise, click the Find All button.
PicoScope 6 User's Guide 6.8 103 Converting files in Windows Explorer You can convert PicoScope data files to other formats for use in other applications, or to different forms of data for use with PicoScope. The easiest way to do this conversion is through the context menu in Windows Explorer. The context menu is the menu that pops up when you right-click it with the mouse or activate it with the "menu" button on a Windows keyboard.
104 Menus The .psdata files should now appear as in this picture: Converting to other formats For all of these conversions, you can choose either "All waveforms" or "Current waveform". A .psdata file can contain either a single waveform or the entire contents of the waveform buffer, which can hold a number of waveforms from successive trigger events. If the .psdata file contains more than one waveform, then you can choose to convert all of them or just the one that was last viewed in PicoScope.
PicoScope 6 User's Guide 7 105 Toolbars and buttons A toolbar is a collection of buttons and controls with related functions. PicoScope 6 contains the following toolbars: Buffer Navigation toolbar 106 Channel Setup toolbar 107 Measurements toolbar 126 Capture Setup toolbar 120 Start / Stop toolbar 136 Triggering Toolbar 137 Zooming and Scrolling toolbar 146 Signal Generator button 127 Copyright © 2007-2012 Pico Technology Ltd. All rights reserved. psw.
106 7.1 Toolbars and buttons Buffer Navigation toolbar The Buffer Navigation toolbar allows you to select a waveform from the waveform buffer. What is the waveform buffer? Depending on the settings you have chosen, PicoScope may store more than one waveform in its waveform buffer. When you click the Start 136 button or change a capture setting 120 , PicoScope clears the buffer and then adds a new waveform to it each time the scope device captures data.
PicoScope 6 User's Guide 7.2 107 Channels toolbar The Channels toolbar controls the settings for each vertical input channel 188 . The screen shot below shows the toolbar for a two-channel scope device 189 , but different scope devices may have different numbers of channels. (See also PicoLog 1216 toolbar 115 that is used for the PicoLog 1000 Series.) Each channel has its own set of buttons: Channel Options button.
108 7.2.1 Toolbars and buttons Channel Options menu The Channel Options menu appears when you click the Channel Options button (for example: ) on the Channels toolbar 107 . Probe list. Indicates the probe currently in use and allows you to select a different one. Use it to tell PicoScope what type of probe is connected to a channel. By default, the probe is assumed to be x1, which means that a one-volt signal at the input to the probe will appear as one volt on the display. Expand probe list.
PicoScope 6 User's Guide 109 Analog Options. Options that can be applied to the oscilloscope input hardware, if the oscilloscope hardware supports them. DC Offset: an offset voltage added to the analog input before digitization. For availability, see the Device feature table. 183 Bandwidth Limit: a fixed-frequency single-pole analog filter. This can be useful for rejecting noise and harmonics that would otherwise cause aliasing. For availability, see the Device feature table. 183 Lowpass Filtering.
110 7.2.1.1 Toolbars and buttons Axis scaling controls The axis scaling controls are control boxes that let you change the scale and offset of each vertical axis individually. If the axis belongs to a reference waveform 29 then you can also adjust its delay relative to the live waveforms.
PicoScope 6 User's Guide 7.2.1.2 111 Lowpass filtering The lowpass filtering feature can reject high frequencies from any selected input channel. The filtering control is found in the Advanced Channel Options dialog 108 , which is opened by clicking the Channel Options button ( ) for the relevant channel on the Channels toolbar 107 . The control determines the cut-off frequency of the filter, which must be below half the sampling rate shown in the Properties sheet 27 .
112 Toolbars and buttons Filter details The lowpass filtering algorithm is chosen according to the ratio of the selected cut-off frequency ( fC) to the sampling rate ( fS), as follows: fC / fS Filter type Description 0.0 to 0.1 Moving average A moving average filter is used for low cut-off frequencies. The length of the filter is adjusted to achieve the selected cut-off frequency, which is defined as the first minimum in the frequency response.
PicoScope 6 User's Guide 7.2.2 113 Digital Inputs button Location: Channels toolbar 107 (MSO 188 only) Purpose: controls the settings for the digital inputs of a mixed signal oscilloscope (MSO 188 ) Digital on/off. Switches the digital view 15 on or off. If digital inputs are activated in the Digital Setup dialog, 113 they remain active even when hidden from view. Digital setup. Opens the Digital Setup dialog 113 for channel selection and options. 7.2.2.
114 Toolbars and buttons Set Thresholds Choose the digital threshold voltage from the drop-down list, or select the Custom threshold and set your own voltage using the numeric entry control. The preset thresholds are: TTL: CMOS: ECL: PECL: LVPECL: LVCMOS 1.5 V: LVCMOS 1.8 V: LVCMOS 2.5 V: LVCMOS 3.3 V: LVDS: 0V Differential: 1.5 V 2.5 V -1.3 V 3.7 V 2V 750 mV 0.9 V 1.25 V 1.65 V 100 mV 0V Each port has its own independent threshold. Port 0 contains channels D7... D0 and Port 1 contains channels D15...D8.
PicoScope 6 User's Guide 7.3 115 PicoLog 1000 Series Channels toolbar The Channels toolbar controls the settings for each vertical input channel 188 . The toolbar has a different appearance for PicoLog 1000 Series Data Loggers than for PicoScope oscilloscopes (see Channels toolbar 107 for the standard version). Channel control. This control contains two buttons in one rectangular outline.
116 7.3.1 Toolbars and buttons PicoLog 1000 Series Digital Outputs control Location: Purpose: click the Digital Outputs button on the Channels toolbar 115 controls the data logger 189 's built-in signal generator Digital Outputs dialog for the PicoLog 1216 The range of controls available depends on which model of data logger you have. Basic controls PWM. Some digital outputs on some devices can be set to generate a pulse-width modulated waveform.
PicoScope 6 User's Guide 7.4 117 USB DrDAQ Channels toolbar The Channels toolbar for the USB DrDAQ controls the settings for each input and output channel 188 : Sound waveform sensor control. The small arrow sets options for the sound waveform input (measured in uncalibrated amplitude units) using the on-board microphone. Click the channel name to toggle the channel on or off. Sound level sensor control.
118 7.4.1 psw.en Toolbars and buttons USB DrDAQ RGB LED control Location: USB DrDAQ Channels toolbar 117 > RGB LED button: Purpose: allows you to set the colour of the on-board LED to any one of 16.7 million colours Enable LED Control: Box checked: you can set the on-board RGB LED to any colour Box clear: the LED has its normal function of flashing to indicate data capture on the input channels Other controls: Experiment with these to see what they do! Copyright © 2007-2012 Pico Technology Ltd.
PicoScope 6 User's Guide 7.4.2 119 USB DrDAQ Digital Outputs control Location: USB DrDAQ Channels toolbar 117 > Digital Outputs button: Purpose: allows you to set the characteristics of the four digital outputs on the screw-terminal block. Each output has its own set of controls: PWM/Out Control: Set to Out: you can set the output to either a fixed logic low (near 0 V) or a fixed logic high (near 3.3 V) Set to PWM: the output is a two-level waveform (alternating between 0 V and 3.
120 7.5 Toolbars and buttons Capture Setup toolbar The Capture Setup toolbar controls the time-related or frequency-related settings of your oscilloscope. Scope Mode In scope mode, 10 the toolbar looks like this: (See below for different versions of the toolbar in spectrum mode 121 and persistence mode 20 .) Scope Mode. Sets up PicoScope to operate as an oscilloscope 10 . Use the Auto Setup button to optimise the settings.
PicoScope 6 User's Guide 121 Samples control. Sets the maximum number of samples that will be captured for each channel. If this is larger than the number of pixels across the scope view then you can zoom in to see more detail. The actual number of samples captured is displayed on the Properties sheet, 27 and may be different from the number requested here, depending on which timebase is selected and which scope device is in use.
122 7.5.1 Toolbars and buttons Spectrum Options dialog This dialog appears when you click the Spectrum Options button in the Capture Setup toolbar 120 . It is available only when a spectrum view 19 is open. It contains controls that determine how PicoScope converts the source waveform in the current scope view to a spectrum view. Spectrum Bins The number of frequency bins into which the spectrum is divided.
PicoScope 6 User's Guide 123 Average: the spectrum view shows a rolling average of spectra calculated from all the waveforms in the waveform buffer 106 . This has the effect of reducing the noise visible in the spectrum view. To clear the averaged data, click Stop 136 and then Start, 136 or change from Average mode to Magnitude mode. Peak Hold: the spectrum view shows a rolling maximum of the spectra calculated from all the waveforms in the buffer.
124 7.5.2 Toolbars and buttons Persistence Options dialog in the This dialog appears when you click the Persistence Options button Capture Setup toolbar 120 . It is available only when persistence mode 20 is selected. It controls the colors and fading algorithm used to distinguish new or frequent data from old or intermittent data in the persistence view. Mode Digital Color. This mode uses a range of colors to indicate the frequency of waveform data.
PicoScope 6 User's Guide 125 Custom Options Line DrawingThe type of line drawn between samples that are adjacent in time. Phosphor Emulation. Joins each pair of sample points with a line whose intensity varies inversely with the slew rate. Constant Density. Joins each pair of sample points with a line of uniform color. Scatter. Draws sample points as unconnected dots. Color Scheme Phosphor. Uses a single hue for each channel, with varying intensity. Color.
126 7.6 Toolbars and buttons Measurements toolbar The Measurements toolbar controls the measurements table 21 . It contains the following buttons: Add Measurement Adds a row to the table, and then opens the Add Measurement dialog. 46 Edit Measurement Opens the Edit Measurement dialog 46 for the currently selected measurement. You can also edit a measurement by double-clicking on a row of the measurements table.
PicoScope 6 User's Guide 7.7 127 Signal Generator button The Signal Generator button allows you to set up your scope device's 189 test signal generator, if it has one, or the demo signal settings if PicoScope is in demo mode 188 . If your scope has a built-in signal generator then clicking the Signal Generator button opens the Signal Generator dialog 127 . If PicoScope is in demo mode 188 then clicking the Signal Generator button opens the Demo Signals menu 134 . 7.7.
128 Toolbars and buttons Arbitrary. Opens the Arbitrary Waveform window 131 . This button is available only if your scope has an arbitrary waveform generator 188 . Start Frequency. Type in this box or use the spin buttons to select the frequency. If the scope device has a frequency sweep generator, then this box sets the start frequency of the sweep. Amplitude. The amplitude of the waveform measured from peak to peak.
PicoScope 6 User's Guide 7.7.2 129 Signal Generator dialog (USB DrDAQ) Location: Purpose: click the Signal Generator button 127 Channels toolbar 117 on the USB DrDAQ controls the USB DrDAQ's built-in signal generator Signal generator dialog for the USB DrDAQ Basic controls Signal On. Tick this box to enable the signal generator. Signal Type. Select the shape of the waveform to be generated. Arbitrary. Opens the Arbitrary Waveform window 131 , allowing you to define your own waveform shape.
130 7.7.3 Toolbars and buttons Arbitrary waveform files Some PicoScope PC Oscilloscopes have an arbitrary waveform generator 188 (AWG), which is enabled using the Signal Generator dialog 127 . PicoScope can program the AWG with a standard waveform, such as a sine or square wave, or an arbitrary waveform that you create or import from a text file. A text file for PicoScope 6 is a list of decimal floating-point values, as in this example: 0.0 0.3 0.9 0.6 0.6 0.0 -0.3 0.0 0.0 0.
PicoScope 6 User's Guide 7.7.4 131 Arbitrary Waveform Generator window Location: Signal Generator dialog 127 > Arbitrary Purpose: allows you to import, edit, draw and export arbitrary waveforms to load into your scope's arbitrary waveform generator 188 . You can also import and export the data in CSV format 188 for use in other applications. Once the desired waveform appears in the window, click OK or Apply to start using it. Toolbar buttons Import from channel.
132 Toolbars and buttons Bit stream. Draws a sequence of bits according to binary or hex data that you specify. The logic high and low levels are adjustable. Clear. Deletes the arbitrary waveform. Normalize. Adjusts the waveform vertically so that it occupies the full [-1,+1] range. Undo and Redo. The Undo button reverses the last change made to the arbitrary waveform. The Redo button reverses the last action of the Undo button. Zoom tools.
PicoScope 6 User's Guide 7.7.4.1 133 Import from a Channel dialog Arbitrary Waveform window 131 > Import from a Channel button ( Location: ) Purpose: allows you to copy captured data from a scope channel to the Arbitrary Waveform window 131 Select Channel: You can import the latest waveform from any available channel. Select Samples: By default, the entire capture is imported. This control allows you to specify a subset of the capture, either between specified sample numbers or between rulers.
134 7.7.
PicoScope 6 User's Guide 7.7.6 135 Demo Signals dialog Location: start PicoScope with no scope device plugged in > Connect Device dialog 102 > select "DEMO" device > Signal Generator button 134 ( > select channel Purpose: ) controls one channel of the "demo" signal source, a feature of PicoScope that creates a variety of test signals to simulate a scope device Signal On: Tick this box to enable the demo signal source. Signal type: Select from a list of standard signal types.
136 7.8 Toolbars and buttons Start / Stop toolbar The Start / Stop toolbar allows you to start and stop the scope device 189 . Click anywhere on the toolbar, or press the space bar, to start or stop sampling. Start icon. Highlighted if the oscilloscope is sampling. Stop icon. Highlighted if the oscilloscope is stopped. This toolbar normally resides at the bottom of the program window, but can be moved to the top using the Tools > Preferences > Options 100 > Bottom toolbar at top control. psw.
PicoScope 6 User's Guide 7.9 137 Triggering toolbar The Triggering toolbar tells the scope device when to start capturing data. See also: Trigger. 189 Trigger Mode. The list of available modes varies depending on the type of scope device 189 in use. None: PicoScope acquires waveforms repeatedly without waiting for a signal to trigger on. Auto: PicoScope waits for a trigger event before capturing data. If there is no trigger event within a reasonable time, it captures data anyway.
138 Toolbars and buttons Trigger Level. Sets the trigger 189 level. You can also set the trigger level by dragging the trigger marker 18 up or down on the screen. Pre-trigger Time (0% to 100%). This parameter controls how much of the waveform appears before the trigger point. It defaults to 50%, which puts the trigger marker 18 in the middle of the screen. You can also control this parameter by dragging the trigger marker 18 to the left or right. Post-trigger Delay Enable.
PicoScope 6 User's Guide 7.9.1 139 Advanced Triggering dialog Location: Purpose: Triggering toolbar 137 > Advanced Triggering button ( ) allows you to set up more complex trigger types than simple edgetriggering Advanced trigger types list. This control lists all the available advanced trigger types 140 . Click on the condition you require, and a diagram and description will appear on the right of the dialog.
140 7.9.2 Toolbars and buttons Advanced trigger types The advanced trigger types can be switched on in the Advanced Triggering dialog. 139 For all trigger types except Digital, 143 the first step is to select which signal the scope should use as the trigger; so set Source to either A, B, Ext or AuxIO. These names correspond to the BNC input connectors on the scope device. Then choose one of the trigger types below. Simple Edge.
PicoScope 6 User's Guide 141 Interval. This type lets you search for two successive edges of the same polarity that are separated by a specified interval of time. First, set the Starting edge to either Rising or Falling according to the polarity of the edges you are interested in. Next, select one of the four Condition options: Greater than triggers when the second edge occurs later than Time 1 after the first edge (useful for detecting missing events).
142 7.9.2.1 Toolbars and buttons Hysteresis Hysteresis is a feature of the advanced trigger types 140 in PicoScope 6 that reduces false triggering on noisy signals. When hysteresis is enabled, a second trigger threshold voltage is used in addition to the main trigger threshold. The trigger fires only when the signal crosses the two thresholds in the correct order. The first threshold arms the trigger, and the second causes it to fire. An example will help to illustrate how this works.
PicoScope 6 User's Guide 7.9.2.2 143 Digital trigger dialog Location: Purpose: Advanced triggering dialog 139 > Digital 143 buttons and Logic sets up triggering on digital inputs Applicability: MSO devices 188 only Pattern table Lists all available inputs as selected in the Digital Setup dialog 113 . Each one can be monitored for a low or high level or a rising or falling edge, or ignored. Any number of levels can be specified, but no more than one transition (edge).
144 7.9.2.3 Toolbars and buttons Logic trigger dialog Location: Purpose: Advanced triggering dialog 139 > Logic button sets up triggering on a combination of inputs Applicability: all devices with more than one active input Input controls There is a set of controls for each active input of the oscilloscope. The selection of inputs depends on the model of oscilloscope in use.
PicoScope 6 User's Guide 145 Logic control Specifies the Boolean operation used to combine the input trigger conditions. Only inputs with the 'Used' box checked (see above) are included in the trigger logic.
146 7.10 Toolbars and buttons Zooming and Scrolling toolbar The Zooming and Scrolling toolbar allows you to move around a scope view spectrum view 19 . Each button has a keyboard shortcut, as listed below. 13 or Ctrl+S or Esc Normal Selection tool. Restores the pointer to its normal appearance. You can use this pointer to click buttons, drag rulers 189 and operate any other controls in the PicoScope window. Ctrl+D Hand tool.
PicoScope 6 User's Guide 147 7.10.1 Zoom Overview Whenever you zoom in using the Zooming and Scrolling toolbar 146 , the Zoom Overview window should appear*: The Zoom Overview shows the full waveforms on all enabled channels. The rectangle indicates the area that is visible in the current view. You can move around the waveform by dragging the rectangle. You can also adjust the zoom factor by dragging the edges of the rectangle to resize it.
148 8 How to... How to... This chapter explains how to perform some common tasks. Change to a different scope device 149 Use rulers to measure a signal 150 Measure a time difference 151 Move a view 152 How to scale and offset a signal 153 How to set up the spectrum view 155 Find a glitch using persistence mode 156 Set up a Mask Limit Test 160 Save on trigger 163 psw.en Copyright © 2007-2012 Pico Technology Ltd. All rights reserved.
PicoScope 6 User's Guide 8.1 149 How to change to a different device Unplug the old device 189 . Cancel the Check USB cable dialog. Plug in the new device. PicoScope will detect the new device and begin to use it. Copyright © 2007-2012 Pico Technology Ltd. All rights reserved. psw.
150 8.2 How to... How to use rulers to measure a signal Using a single ruler for signal-to-ground measurements Look at the Channels toolbar 107 to find the color code for the channel 188 you wish to measure: Find the ruler handle (the small colored square in the top-left or top-right corner of the scope view 13 or spectrum view 19 ) of this color: Drag the ruler handle downwards. A signal ruler 24 (horizontal broken line) will appear across the view.
PicoScope 6 User's Guide 8.3 151 How to measure a time difference Find the time ruler handle (the small white square in the bottom left corner of the scope view 13 ). Drag the ruler handle to the right. A time ruler 25 (vertical broken line) will appear on the scope view. Release the ruler handle when the ruler is at the time you wish to use as the reference. Drag the second white ruler handle to the right until its ruler is at the time to be measured.
152 8.4 How to... How to move a view You can easily drag a view 12 from one viewport 190 to another. This example shows four viewports, which contain scope views 13 called "Scope 1" to "Scope 4". Suppose that you wish to move the "Scope 4" view to the top left viewport. 1. Click on the name tab of the "Scope 4" view and hold the mouse button down. 2. Drag the mouse pointer to the new location next to the name tab of the "Scope 1" view. 3.
PicoScope 6 User's Guide 8.5 153 How to scale and offset a signal PicoScope offers several ways to change the size and position of a signal during or after capture. These methods apply equally to scope views 13 and spectrum views 19 . They do not change the stored data, only the way in which it is displayed. These options are provided in addition to the analog offset 109 capability of some scopes (see Device feature table 183 ).
154 How to... Axis scaling and offset Use these tools if Auto-arrange axes (see above) does not give you the results you want. It allows you to position channels individually on the view (unlike the global zooming and scrolling tools, which are applied to all of the channels at the same time). Click the scaling button at the bottom of the axis you wish to modify, and the axis scaling controls 110 will appear.
PicoScope 6 User's Guide 8.6 155 How to set up the spectrum view Creating a spectrum view First, ensure that the trigger mode 137 is not set to ETS 188 , as it is not possible to open a spectrum view in ETS trigger mode. There are three ways to open a spectrum view 19 : Click the Spectrum Mode button in the Capture Setup toolbar 120 . We recommend using this method to get the best spectrum analysis performance from your scope.
156 8.7 How to... How to find a glitch using persistence mode Persistence mode 20 helps you find rare events hidden in otherwise repetitive waveforms. In normal scope mode, such an event may appear on the display for a fraction of a second, too quickly for you to press the space bar to freeze it on the screen. Persistence mode keeps the event on the display for a predetermined time, allowing you to set up the trigger options to capture it more reliably.
PicoScope 6 User's Guide 157 Our original scope view is replaced by a persistence view, as shown below. Immediately, we can see three pulses with different shapes. At this point we have the Saturation control in Persistence Options 124 turned up to maximum to help us spot the various waveforms easily. Copyright © 2007-2012 Pico Technology Ltd. All rights reserved. psw.
158 How to... Now that we have found some glitches, we will turn the Saturation control down to minimum. Click the Persistence options button to open the Persistence Options dialog 124 , and then use the slider to adjust the saturation. The display then appears as below. The waveforms are now darker but have a wider range of colors and shades. The most frequently occurring waveform is shown in red, and is the normal shape of the pulse.
PicoScope 6 User's Guide 159 Persistence mode has done its job. We have found our glitches, and now we want to examine them in more detail. The best way to do this is to switch back to normal scope mode 10 , so that we can use the advanced triggering 140 and automatic measurement 21 functions built in to PicoScope. Click the Scope Mode button. Set up an advanced pulse-width trigger to look for a pulse wider than 60 ns. PicoScope then finds the runt pulse straight away.
160 8.8 How to... How to set up a Mask Limit Test 1. Display a stable waveform in a scope view 13 . Adjust the voltage range and timebase so that the feature of interest fills most of the view. In this example, we are viewing a repetitive pulse as might be found on a data bus. 2. Select the Tools psw.en 49 > Masks 86 > Add Masks command. Copyright © 2007-2012 Pico Technology Ltd. All rights reserved.
PicoScope 6 User's Guide 3. You should now be in the Mask Library dialog 161 86 : Channel A is selected by default. You can change this if you want to apply the mask to a different channel. 4. Click the Generate button to open the Generate Mask dialog Copyright © 2007-2012 Pico Technology Ltd. All rights reserved. 91 : psw.
162 How to... 5. For now, accept the default settings and click Generate. Then click OK in the Mask Library dialog 86 to return to the scope view: You now have a mask drawn around the original waveform. 6. PicoScope stops capturing when you enter the Mask Library dialog 86 , so press the space bar to restart. If any captured waveform fails to fit inside the mask, the offending parts are drawn in a contrasting color. The Measurements table 21 shows the number of failures: 7.
PicoScope 6 User's Guide 8.9 163 How to save on trigger Save-on-trigger is just one of a number of functions that are possible with the Alarms 84 feature. 1. Set up PicoScope to display your waveform, and enable triggering: 2. Select the Tools 49 > Alarms Copyright © 2007-2012 Pico Technology Ltd. All rights reserved. 84 command: psw.
164 How to... 3. You should now be in the Alarms dialog 84 : 4. Set Event to Capture: psw.en Copyright © 2007-2012 Pico Technology Ltd. All rights reserved.
PicoScope 6 User's Guide 165 5. Select the first item in the Actions list, click Edit, and change Action to Save Current Buffer: 6. Click the button to the right of the File box and enter the name and location of the file to save: Copyright © 2007-2012 Pico Technology Ltd. All rights reserved. psw.
166 How to... 7. Ensure that both the Save Current Buffer check box and the Enable Alarm check box are set: 7. Click OK. PicoScope will now save a file on every trigger event. 8. Switch off the alarm when you have finished using it, to avoid creating unwanted files. psw.en Copyright © 2007-2012 Pico Technology Ltd. All rights reserved.
PicoScope 6 User's Guide 9 167 Reference This is where you can find detailed information on the operation of PicoScope. Measurement types 167 Spectrum window functions 172 Serial protocols 175 Trigger timing 173 Command-line syntax 184 Glossary 188 9.1 Measurement types The Edit Measurement dialog 46 allows you to select one of a range of measurements that PicoScope can calculate for the selected view.
168 9.1.1 Reference Scope measurements AC RMS. The root mean square (RMS) value of the waveform m inus the DC Average. It is equivalent to a ripple measurement. Cycle Time. PicoScope will attempt to find a repeated pattern in the waveform and measure the duration of one cycle. DC Average. The mean value of the waveform. Duty Cycle. The amount of time that a signal spends above its mean value, expressed as a percentage of the signal period.
PicoScope 6 User's Guide 9.1.2 169 Spectrum measurements To add a spectrum measurement, open a spectrum view 19 and then click the Add Measurement 126 button. You can use these measurements in either scope mode 10 or spectrum mode 10 . Frequency at peak. The frequency at which the peak signal value appears. Amplitude at peak. The amplitude of the peak signal value. Average amplitude at peak. The amplitude of the peak signal value averaged over a number of captures. Total power.
170 Reference Intermodulation Distortion (IMD). A measure of the distortion caused by the nonlinear mixing of two tones. When multiple signals are injected into a device, modulation or nonlinear mixing of these two signals can occur. For input signals at frequencies f1 and f2, the two second-order distortion signals will be found at frequencies: f3 = (f1 + f2) and f4 = (f1 - f2). IMD is expressed as the dB ratio of the RMS sum of the distortion terms to the RMS sum of the two input tones.
PicoScope 6 User's Guide 9.2 171 Signal generator waveform types The list of waveform types available in the Signal Generator dialog 127 varies according to the type of oscilloscope connected.
172 9.3 Reference Spectrum window functions To create a spectrum view 19 , PicoScope captures a block of sampled data over a finite time interval and then uses a Fast Fourier Transform to compute its spectrum. The algorithm assumes a signal level of zero at all times outside the captured time interval.
PicoScope 6 User's Guide 9.4 173 Trigger timing (part 1) The pre-trigger time control and post-trigger delay control functions are described individually under "Triggering toolbar" 137 , but the interaction between the two controls is also important to understand. Here is a screen shot of a scope view 13 with post-trigger delay enabled: Note 1. The trigger reference point ( ) does not lie on the waveform.
174 9.5 Reference Trigger timing (part 2) "Trigger timing (part 1) 173 " introduced the concepts of pre-trigger delay 137 and the post-trigger delay 137 . This diagram below shows how they are related. The pre-trigger delay positions the scope view 13 in relation to the trigger reference point so that you can choose how much of the waveform should be before the reference point, and how much after it. The post-trigger delay is like the delayed trigger of a conventional oscilloscope.
PicoScope 6 User's Guide 9.6 Serial protocols The serial decoding 9.6.1 175 30 feature of PicoScope understands the following serial protocols. CAN Bus protocol You can decode CAN Bus data using the serial decoding PicoScope. 30 feature built into About CAN Bus CAN (Controller Area Network) Bus is a serial protocol used in automotive and industrial machinery to allow microcontrollers to communicate with each other. The standard was originally developed in 1983 by Robert Bosch GmbH.
176 Reference R0 Reserved bit R1 Reserved bit, extended frames only DLC Data length code. Indicates the number of bytes of data.
PicoScope 6 User's Guide 9.6.2 177 LIN protocol You can decode LIN data using the serial decoding 30 feature built into PicoScope. About LIN LIN (Local Interconnect Network) is a serial protocol used in automotive electronics to allow microcontrollers to communicate with low-speed peripherals. The standard was defined by the LIN Consortium, a group of five vehicle manufacturers. It uses a single wire pair with a master-slave topology.
178 Reference Checksum A cyclic redundancy check of the data (hexadecimal). Calculated Checksum* The checksum expected by PicoScope. Error Set if PicoScope detects an error. Start Time Value of PicoScope timebase at start of frame. End Time Value of PicoScope timebase at end of frame. Packet Time* The duration of the packet (End Time – Start Time). Min Voltage* Minimum voltage. Max Voltage* Maximum voltage. Voltage Delta* Voltage range of the signal (Max Voltage – Min Voltage).
PicoScope 6 User's Guide 9.6.3 179 I²C Bus protocol You can decode I2C Bus data using the serial decoding PicoScope. 30 feature built into About I2C Bus I2C (Inter-Integrated Circuit) Bus is a serial protocol used mainly in consumer electronics for communications between devices on the same circuit board, and between computers and displays. The standard was originally developed in the 1980s by Philips. It uses two signals: clock (SCL) and data (SDA).
180 Reference Max Voltage* Maximum voltage. Voltage Delta* Voltage range of the signal (Max Voltage – Min Voltage). * Display of these items is toggled on and off by the Statistics button. psw.en Copyright © 2007-2012 Pico Technology Ltd. All rights reserved.
PicoScope 6 User's Guide 9.6.4 181 RS232/UART protocol You can decode RS232 (UART) data using the serial decoding PicoScope. 30 feature built into About RS232 RS232 is the serial data standard used by UARTs (Universal Asynchronous Receiver/ Transmitters) in the "serial" or "COM" ports once commonly found on computers. It was developed in the 1960s for connecting modems to terminals. The full standard uses a voltage swing of ±12 V, larger than most other standards.
182 9.6.5 Reference SPI Bus protocol You can decode SPI Bus data using the serial decoding PicoScope. 30 feature built into About SPI Bus SPI (Serial Peripheral Interface) Bus is a serial data standard used for communication between microprocessors and peripheral devices. It was developed by Motorola. The original standard uses a 4-wire link, although 3-wire and 2-wire versions are also used. The in-window view of the data looks like this: The columns in the data table are as follows: Column No.
PicoScope 6 User's Guide 9.7 183 Device feature table Some PicoScope 6 features require special hardware and are not therefore available on all devices. Available features are indicated in the table below. Series / Model DC BW LPF 50Ω FRQ GEN SWP AWG DIN EXT AUX ADV RNT [7] [1] ADC-212 [3] USB DrDAQ PicoLog 1000 [1] PicoScope 2000 [5] [4] PicoScope 3000 PicoScope 3000 A/B PicoScope 4000 [8] [2] [2] [6] PicoScope 5000 PicoScope 6000 PicoScope 6000 A/B 1. 2. 3. 4. 5. 6. 7. 8.
184 9.8 Reference Command-line syntax To display the GUI picoscope Specifies a single .psdata or .pssettings file. Example: picoscope C:\Temp\source.psdata To display help picoscope /? Shows help on all command line options. To convert psdata files picoscope /C,/c Converts a psdata file from one format to another. Cannot be used with /p[rint].
PicoScope 6 User's Guide 185 To print a view picoscope /P,/p Prints a view in the psdata file. Cannot be used with /c[onvert]. Syntax: picoscope /p[rint] [/b [[:]] | all] [/v ] Specifies a list of one or more directories or .psdata files. Wildcards may be used to specify multiple files. If a directory is specified, all .psdata files within that directory will be specified. This is a mandatory argument.
186 9.9 Reference Application Error dialog If there is a problem with PicoScope and the program needs to close, the Application Error dialog appears: It would be very helpful to us if you could send us a report of the problem. All you need to do is click the Send Report button, then save the .zip file in a place where you can easily find it again, such as on your desktop. Then, email the ..zip file to us at support@picotech.com and we will do the rest.
PicoScope 6 User's Guide 187 At this point you can either connect the AC adapter to the DC IN socket on the oscilloscope or choose to use USB power. If you connect the AC adapter, the dialog will automatically close. There are two ways to connect the scope to use USB power: Use the double-headed USB cable supplied to connect to two USB ports on your computer or USB hub. Any powered USB port that meets the USB 2.0 specification is suitable. An unpowered USB hub cannot be used.
188 9.11 Reference Glossary AC coupling. In this mode, the scope device rejects very low signal frequencies below about 1 hertz. This allows you to use the full resolution of the scope to measure a.c. signals accurately, ignoring any d.c. offset. You cannot measure the signal level with respect to ground in this mode. AWG. An arbitrary waveform generator (AWG) is a circuit that can generate a waveform of almost any shape.
PicoScope 6 User's Guide 189 PC Data Logger. A measuring instrument consisting of a hardware interface and the PicoLog software running on a PC. You can also use the device with the PicoScope software to create a multi-channel voltage input oscilloscope. PC Oscilloscope. A measuring instrument consisting of a scope device 189 and the PicoScope software running on a PC. A PC Oscilloscope has the same functions as a traditional bench-top oscilloscope but is more flexible and cost-effective.
190 Reference Viewport. The views in the PicoScope window 12 are arranged in a grid, 188 and each rectangular area in the grid is called a viewport. psw.en Copyright © 2007-2012 Pico Technology Ltd. All rights reserved.
PicoScope 6 User's Guide 191 Index AWG 188 Axis 13, 17, 19, 188 auto-arrange 43 horizontal 13, 17, 19 offset 153 scaling 153 % %buffer% variable 84 %file% variable 84 %time% variable scaling controls vertical 84 110 13, 17, 19 B . Bandwidth limit 183 Bandwidth limiter 108 .bmp files, saving 36 .csv files, saving 36 .gif files, saving 36 .mask files Battery power 86 .png files, saving 36 .
192 Index Contact information 5 Converting data files 103, 184 Digital trigger dialog 143 Digital view 15 context menu 16 Copy as image 42 as text 42 Copyright DrDAQ 117 Dropout trigger 4 Coupling control E 107 Create New Custom Probe dialog CSV files, exporting 38 Cursors (see Rulers) 24, 25, 26 Custom grid layout dialog 51 Edge trigger 44 Custom Probe Manager 49 Custom Probe wizard 51 Create New Custom Probe dialog 51 Edit Existing Custom Probe dialog 52 Edit Range dialog 58 Edit Range d
PicoScope 6 User's Guide Glitches, finding Glossary 188 Graticule 193 140 Lookup-Table Scaling dialog 55 Lowpass filtering 61, 108, 111, 183 13, 17, 19, 188 M Grid 188 layout 43, 44 Groups, digital input Macro Recorder 113 89 Mains power 92 Manual Ranges Setup dialog Marquee Zoom tool 146 H Hand tool 146 Harmonic control for measurements Help menu 101 Horizontal axis 13, 17, 19 House current Hysteresis 47 Mask Limit Testing How To 160 Masks colors 43 editing 87 export 86 generate 86 142 I
194 Index Measurements filtering 21 font size Power Management preferences Power supply 186 45 list of types menu 45 scope 168 spectrum Preferences 49 capture rate 92 colours 98 Default Print Settings 167 169 device selection statistics 21 table 21 toolbar 100, 126 Menus language 34 Mission-critical applications 96 persistence modes 100 power management 92 sampling 93 spectrum modes 4 MSO setup 113 MSO view 14 100 Pre-trigger delay 173 control 137, 173 Printing 35 from command line N 146
PicoScope 6 User's Guide 195 RGB LED on USB DrDAQ Rise time threshold 47 Rising edge button RPM 26, 100 RS232 protocol 181 settings 118 dialog 137 76 link file 79 Serial protocols RS232/UART settings Rulers 13, 17, 19 definition 188 77 Settings saving 101 175 35 Settings dialog 82 Signal difference, how to measure deleting 24, 25 handles 13, 17, 19 legend 26 26 USB DrDAQ 129 Waveform types 171 Signal generator sweep mode Signal rulers 13, 17, 19, 24 140 Sinx(x)/x preferences S Samp
196 Index Statistics 21 filtering 47 Undo zoom 146 Upgrades 4 Support Usage 4 Symbols red warning 13 yellow warning 28 System requirements 4 USB DrDAQ 117 USB power 186 'Used' check box 144 6 V T Valid edges, finding Telephone number 5 Text files, exporting 36, 38 Threshold for measurements Thresholds, digital input Timebase controls 120 Tool tip 188 Toolbars 105 Tools menu 49 Trace Version 1 Version 6 update 2 Version number hardware 101 47 113 Time difference, how to measure Time gate
PicoScope 6 User's Guide Z-ordering 197 110 Copyright © 2007-2012 Pico Technology Ltd. All rights reserved. psw.
PicoScope 6 User's Guide Copyright © 2007-2012 Pico Technology Ltd. All rights reserved. 199 psw.
Pico Technology James House Colmworth Business Park ST. NEOTS Cambridgeshire PE19 8YP United Kingdom Tel: +44 (0) 1480 396 395 Fax: +44 (0) 1480 396 296 www.picotech.com psw.en-26 16.7.12 Copyright © 2007-2012 Pico Technology Ltd. All rights reserved.
