MGC3130 Hillstar Development Kit User’s Guide 2013 Microchip Technology Inc.
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Object of Declaration: MGC3130 Hillstar Development Kit User’s Guide 2013 Microchip Technology Inc.
MGC3130 Hillstar Development Kit User’s Guide NOTES: DS40001721A-page 4 2013 Microchip Technology Inc.
MGC3130 HILLSTAR DEVELOPMENT KIT USER’S GUIDE Table of Contents Preface ........................................................................................................................... 7 Introduction............................................................................................................ 7 Document Layout .................................................................................................. 7 Conventions Used in this Guide ..........................................
MGC3130 Hillstar Development Kit User’s Guide Appendix A. Schematics A.1 Introduction .................................................................................................. 35 A.2 Bill of Materials ............................................................................................. 35 A.3 Board – Schematics and Layout .................................................................. 37 Appendix B. Sensitivity Profile and Capacitances B.1 Introduction ..................................
MGC3130 HILLSTAR DEVELOPMENT KIT USER’S GUIDE Preface NOTICE TO CUSTOMERS All documentation becomes dated, and this manual is no exception. Microchip tools and documentation are constantly evolving to meet customer needs, so some actual dialogs and/or tool descriptions may differ from those in this document. Please refer to our web site (www.microchip.com) to obtain the latest documentation available. Documents are identified with a “DS” number.
MGC3130 Hillstar Development Kit User’s Guide CONVENTIONS USED IN THIS GUIDE This manual uses the following documentation conventions: DOCUMENTATION CONVENTIONS Description Arial font: Italic characters Initial caps Quotes Underlined, italic text with right angle bracket Bold characters N‘Rnnnn Text in angle brackets < > Courier New font: Plain Courier New Represents Referenced books Emphasized text A window A dialog A menu selection A field name in a window or dialog A menu path MPLAB® IDE User’s Guide
Preface WARRANTY REGISTRATION Please complete the enclosed Warranty Registration Card and mail it promptly. Sending in the Warranty Registration Card entitles users to receive new product updates. Interim software releases are available at the Microchip web site. RECOMMENDED READING This user's guide describes how to use the Hillstar Development Kit. Other useful documents are listed below. The following Microchip documents are available and recommended as supplemental reference resources.
MGC3130 Hillstar Development Kit User’s Guide THE MICROCHIP WEB SITE Microchip provides online support via our web site at www.microchip.com. This web site is used as a means to make files and information easily available to customers.
Preface CUSTOMER SUPPORT Users of Microchip products can receive assistance through several channels: • • • • Distributor or Representative Local Sales Office Field Application Engineer (FAE) Technical Support Customers should contact their distributor, representative or field application engineer (FAE) for support. Local sales offices are also available to help customers. A listing of sales offices and locations is included in the back of this document.
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MGC3130 HILLSTAR DEVELOPMENT KIT USER’S GUIDE Chapter 1. Overview 1.1 INTRODUCTION The MGC3130 is the first product based on Microchip’s GestIC® technology. It is developed as a mixed-signal controller. The MGC3130 has one transmit and five very sensitive receive channels that are capable to detect changes of a transmitted electrical field (E-field) corresponding to capacitive changes in the femtofarad (1 fF = 10-15F) range.
MGC3130 Hillstar Development Kit User’s Guide The Hillstar Development Kit provides an artificial test hand, further called hand brick, helping to stimulate the human hand operating the GestIC application. The hand brick has to be used during the design-in process to parametrize and evaluate customer’s applications. The hand brick’s surface is conductive and connected to GND via cable in order to reproduce the grounding conditions of the human body. 1.
Overview 1.4 HILLSTAR DEVELOPMENT KIT REFERENCE ELECTRODES The Hillstar development kit includes a collection of layout references (Gerber files) for electrode designs and ready-to-use sensor modules with MGC3130 backside assembly.
MGC3130 Hillstar Development Kit User’s Guide TABLE 1-1: ELECTRODE DIMENSIONS Sensitive Area 140x90 mm 95x60 mm(1) 80x80 mm 100x50 mm 50x30 mm 30x30 mm(2) Version 1.0 1.0 1.0 1.0 1.0 1.0 Layer 2 2 2 2 2 2 Aspect Ratio approx. 3:2 approx. 3:2 1:1 approx. 2:1 5:3 1:1 A 168 mm 120 mm 104 mm 128 mm 63 mm 49 mm B 119 mm 85 mm 104 mm 72 mm 47 mm 49 mm C 138 mm 95,7 mm 79.8 mm 103,6 mm 50 mm 31.8 mm D 88,7 mm 60,5 mm 79.
Overview ELECTRODE DIMENSIONS Rx C Tx F H D A B FIGURE 1-3: G F E The Gerber data of all electrode reference designs are included in the MGC3130 Hillstar Hardware Reference package and can be downloaded from Microchip’s web site www.microchip.com/GestICGettingStarted. 1.5 MGC3130 SOFTWARE PACKAGE – AUREA GUI AND GestIC LIBRARY The MGC3130 Software Package contains all relevant system software and documentation. Hillstar Development Kit is supported by MGC3130 Software Package 0.
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MGC3130 HILLSTAR DEVELOPMENT KIT USER’S GUIDE Chapter 2. Getting Started Hillstar Development Kit can be used as a stand-alone GestIC system and evaluated in conjunction with the Aurea PC software. This section describes how to get started. 2.
MGC3130 Hillstar Development Kit User’s Guide FIGURE 2-2: HILLSTAR DEVELOPMENT KIT ASSEMBLING I2C™ to USB Bridge 2.3 STEP 2: CONNECTING HILLSTAR DEVELOPMENT KIT WITH YOUR PC Use the supplied USB cable to connect the Hillstar Development Kit to your PC. The Power LEDs on both, I2C to USB Bridge and MGC3130 Unit will illuminate. Furthermore, LED 1 on the I2C to USB Bridge will flash very fast (~10 Hz). In case LED 1 is flashing slow (~1 Hz), the Windows CDC driver is already installed on your PC.
Getting Started FIGURE 2-3: AUREA GRAPHICAL USER INTERFACE Evaluate Colibri Suite Discover Signals Setup MGC3130 1. Positions Tracking 1. View signals 1. AFE parameterisation 2. Gesture Recognition 2. Write log file 2. Colibri Suite parameterization 3. Demo applications 3. Advanced features 3. Update GestIC Library 4. Measure Electrode capacitances 2013 Microchip Technology Inc.
MGC3130 Hillstar Development Kit User’s Guide NOTES: DS40001721A-page 22 2013 Microchip Technology Inc.
MGC3130 HILLSTAR DEVELOPMENT KIT USER’S GUIDE Chapter 3. Hillstar Boards – Hardware Description 3.1 OVERVIEW The Hillstar key components are listed below and highlighted in Figure 3-1. FIGURE 3-1: HILLSTAR DEVELOPMENT KIT OVERVIEW 11 1 2 5 4 8 6 10 7 12 13 9 3 I2C™ to USB Bridge 3.1.1 1. 2. 3. 4. 5. Reference Electrode PCB I2C™ to USB Bridge PIC18F14K50 USB microcontroller USB mini-B connector MCP1801T LDO voltage regulator (converts 5V USB to 3.
MGC3130 Hillstar Development Kit User’s Guide The Gerber data of all Hillstar Development Kit components are included in the MGC3130 Hillstar Hardware Reference package and can be downloaded from Microchip’s web site www.microchio.com/GestICGettingStarting. 3.2 MGC3130 UNIT The key element of the MGC3130 Unit is Microchip’s MGC3130 3D Tracking and Gesture Controller. The layout print of the unit is shown in Figure 3-2.
Hillstar Boards – Hardware Description 3.3 HILLSTAR 95x60 mm REFERENCE ELECTRODE The 95x60 mm Reference Electrode provided with the Hillstar Development Kit consists of one Tx and a set of five Rx electrodes (north, east, south, west, center), which are placed in two different layers. An additional ground layer is placed underneath the Tx electrode and shields the electrode’s back from external influences.
MGC3130 Hillstar Development Kit User’s Guide FIGURE 3-4: TABLE 3-2: ELECTRODE LAYOUT HILLSTAR ELECTRODE DIMENSIONS Length Width 5 mm Design Horizontal Electrodes (Rx) 91.7 mm solid Vertical Electrodes (Rx) 70.5 mm 5 mm solid Center Electrode (Rx) 85.7 mm 50.5 mm 3% cross-hatched Tx Electrode (refer to Figure 3-4) Part I (under center electrode) Part II (outside Part I) 120 mm 85.7 mm 120 mm 85 mm 50.
Hillstar Boards – Hardware Description FIGURE 3-5: PCB LAYER STACK 935 µm Top layer 2nd layer Not Used: 35 µm 0.15 mm Tx: 35 µm Tx 540 µm 1.546 mm Rx : 18 µm 3rd layer 0.25 mm Bottom layer GND: 18 µm Rx feeding line In a target system design the GND layer is not required. It is added for the Hillstar sensing electrode as a shielding layer and shall simulate the presence of static components which are placed in a target device underneath the sensing electrodes.
MGC3130 Hillstar Development Kit User’s Guide The I2C to USB Bridge is powered via the USB port. Microchip’s Low Dropout (LDO) Voltage Regulator MCP1801 is used to transform the 5V USB power to 3.3V required for the PIC18F14K50. By default, 3.3V are also routed to the MGC3130 Unit via the I2C interface. The 3.3V power supply towards the MGC3130 Unit can be cut by removing the 0 resistor R7. The LEDs indicate the following: • POWER – signals that the I2C to USB Bridge is powered (3.
MGC3130 HILLSTAR DEVELOPMENT KIT USER’S GUIDE Chapter 4. Design In: Hillstar In Target Application 4.1 INTRODUCTION The Hillstar Development Kit is designed to support an easy integration of Microchip’s MGC3130 3D Tracking and Gesture Controller into customer’s applications. The three Hillstar PCBs can be plugged to a PC via USB cable and used for evaluation of MGC3130 chip and GestIC technology. During the customer’s design-in process the individual boards can be combined according to the customers need.
MGC3130 Hillstar Development Kit User’s Guide FIGURE 4-1: MGC3130 PARAMETERIZATION CIRCUIT WITH INTERNAL SWITCH AU USB cable A TS I²C SDA I²C SCL Reset I²C to USB Bridge USB Bridge USB to I²C (HID) RE For debugging and parametetrization purposes Customer application TS I²C SDA I²C SCL Reset Application Processor MGC 3130 To electrodes FIGURE 4-2: High Z for bridge access I2C client MGC3130 PARAMETERIZATION CIRCUIT WITH EXTERNAL SWITCH AU USB cable A TS I²C SDA I²C SCL Reset I²C to USB
Design In: Hillstar In Target Application FIGURE 4-3: MGC3130 PARAMETERIZATION CIRCUIT FOR USB BASED APPLICATIONS AU RE A USB cable For debugging and parametetrization purposes Customer application Application Processor TS I²C SDA I²C SCL Reset MGC 3130 I2C client To electrodes TABLE 4-1: USB to I²C (CDC/HID) MGC3130 PARAMETERIZATION CIRCUITS COMPARISON Parameterization Circuit With Internal Switch Advantages Drawbacks Easy Approach Processor pins need to be switchable to high Z Low hardwa
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MGC3130 HILLSTAR DEVELOPMENT KIT USER’S GUIDE Chapter 5. Troubleshooting Troubleshooting Information Power LED does not illuminate In case the power LED does not illuminate it is likely that the board is not powered. Possible Solutions: • Check the board is connected to your PC’s USB port. • Change the USB cable or use a different USB port on your PC. • Check if the PC is switched on. LED 1 blinks fast When LED 1 blinks fast (~10 Hz) the USB connection is not established towards the PC.
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MGC3130 HILLSTAR DEVELOPMENT KIT USER’S GUIDE Appendix A. Schematics A.1 INTRODUCTION This appendix contains the MGC3130 Hillstar Development Kit schematic and Bill of Materials. A.2 BILL OF MATERIALS TABLE A-1: I2C™ TO USB BRIDGE BILL OF MATERIALS Qty. Description Name 1 Connector, Mini USB 5-pin Type B, SMD 1 Connector, 2 mm socket 6-pin, SMD BU2 1 Capacitor, 100 nF, 10%, X7R, SMD 0402 C1 3 Capacitor, 1 µF, 10%, X5R, 10 V, SMD 0402 C2, C3, C5 1 Capacitor, 10 µF, 20%, X5R, 6.
MGC3130 Hillstar Development Kit User’s Guide TABLE A-3: HILLSTAR – MGC3130 UNIT BILL OF MATERIALS Qty. 1 Description Connector, 2 mm socket 7-pin, SMD BU1 1 Connector, 2 mm header 6-pin, SMD ST1 1 Capacitor, 100 nF, 10%, X7R, SMD 0402 C1 2 Capacitor, 4,7 µF, 20%, X5R, 6.
Schematics A.3 BOARD – SCHEMATICS AND LAYOUT FIGURE A-1: HILLSTAR GestIC® UNIT SCHEMATIC ™ 2013 Microchip Technology Inc.
MGC3130 Hillstar Development Kit User’s Guide FIGURE A-2: ASSEMBLY OF MGC3130 UNIT Top View Bottom View FIGURE A-3: HILLSTAR I2C™ TO USB BRIDGE SCHEMATIC ™ DS40001721A-page 38 2013 Microchip Technology Inc.
Schematics FIGURE A-4: ASSEMBLY OF HILLSTAR I2C™ TO USB BRIDGE ™ Top View Bottom View 2013 Microchip Technology Inc.
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MGC3130 HILLSTAR DEVELOPMENT KIT USER’S GUIDE Appendix B. Sensitivity Profile and Capacitances B.1 INTRODUCTION This appendix contains the sensitivity profile and the electrode capacitances of the Hillstar Development Kit hardware. The measurement procedure of both, the sensitivity profile and the electrode capacitances are outlined in “MGC3130 GestIC® Design Guide”. B.2 SENSITIVITY PROFILES The sensitivity profiles were conducted using a 40x40x70 mm hand brick and a 30 mm spacer brick.
MGC3130 Hillstar Development Kit User’s Guide FIGURE B-2: SENSITIVITY PROFILE FROM NORTH TO SOUTH North -> South 500 450 signal deviation / digits 400 339 320 350 375 382 382 354 355 353 329 250 207 200 90 78 100 363 334 319 292 283 266 255 300 150 350 227 SD North 193 171 SD East 150 135 110 SD South 131 103 SD West 84 SD Center 64 50 0 distance to North SD: Signal Deviation B.
MGC3130 HILLSTAR DEVELOPMENT KIT USER’S GUIDE Appendix C. Parameterization Support C.1 HOW TO BUILD A HAND BRICK For parameterization and performance evaluation of the customer’s electrode design, the Hillstar Development Kit contains a set of hand and spacer bricks. The hand brick is a conductive block of 40x40x70 mm and represents a human hand. It must be connected to ground via cable in order to simulate the grounding conditions of the human body.
MGC3130 Hillstar Development Kit User’s Guide 3. Place the Styrofoam block on the copper layer exactly on the middle. Be careful to be accurate! Fold the copper. Follow along the inside lines, and fold the copper inward. Start with right, left sides and then with middle part. Align the folds. 4. Finish up your box. Tape all of the sides together, and you’re done. DS40001721A-page 44 2013 Microchip Technology Inc.
Parameterization Support 5. Solder a thin wire (approx. 50 cm) on the top of the brick which will be connected later to ground. Thin wire for grounding (e.g. 0,15mm diameter, 50cm length) 6. Finished. C.2 USAGE OF THE HAND BRICK AS ARTIFICIAL HAND For parameterization and performance evaluation purposes of the customer’s electrode design, the kit contains a set of hand and spacer bricks.
MGC3130 Hillstar Development Kit User’s Guide FIGURE C-1: DS40001721A-page 46 USAGE OF ARTIFICIAL HAND 2013 Microchip Technology Inc.
MGC3130 HILLSTAR DEVELOPMENT KIT USER’S GUIDE Appendix D. Driver Installation Manual Go through the following steps to manually install the Windows CDC Driver on your PC. D.1 OPEN DEVICE MANAGER While the Hillstar Development Board is connected to your PC press Start, right-click on Computers and select Manage. This will bring up the Computer Management window shown in Figure D-1. On the left sidebar select Device Manager. FIGURE D-1: D.2 COMPUTER MANAGEMENT SELECT DEVICE 1.
MGC3130 Hillstar Development Kit User’s Guide FIGURE D-2: D.3 Update Driver Software LOCATE DRIVER 1. Click Browse and navigate to the driver files on your local drive (refer to Figure D-3). 2. Press Next and the driver will be installed. FIGURE D-3: D.4 Browse for Driver Software VERIFY COMMUNICATION The driver is properly installed and the communication between the PC and the Hillstar Development Board is successfully established when LED 1 and LED 2 blink alternatively.
MGC3130 HILLSTAR DEVELOPMENT KIT USER’S GUIDE Appendix E.
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