MGC3030 Woodstar Development Kit User’s Guide 2014-2015 Microchip Technology Inc. DS40001777B Note the following details of the code protection feature on Microchip devices: • Microchip products meet the specification contained in their particular Microchip Data Sheet. • Microchip believes that its family of products is one of the most secure families of its kind on the market today, when used in the intended manner and under normal conditions. • There are dishonest and possibly illegal methods used to breach the code protection feature. All of these methods, to our knowledge, require using the Microchip products in a manner outside the operating specifications contained in Microchip’s Data Sheets. Most likely, the person doing so is engaged in theft of intellectual property. • Microchip is willing to work with the customer who is concerned about the integrity of their code. • Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their code. Code protection does not mean that we are guaranteeing the product as “unbreakable.” Code protection is constantly evolving. We at Microchip are committed to continuously improving the code protection features of our products. Attempts to break Microchip’s code protection feature may be a violation of the Digital Millennium Copyright Act. If such acts allow unauthorized access to your software or other copyrighted work, you may have a right to sue for relief under that Act. Information contained in this publication regarding device applications and the like is provided only for your convenience and may be superseded by updates. It is your responsibility to ensure that your application meets with your specifications. MICROCHIP MAKES NO REPRESENTATIONS OR WARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED, WRITTEN OR ORAL, STATUTORY OR OTHERWISE, RELATED TO THE INFORMATION, INCLUDING BUT NOT LIMITED TO ITS CONDITION, QUALITY, PERFORMANCE, MERCHANTABILITY OR FITNESS FOR PURPOSE. Microchip disclaims all liability arising from this information and its use. Use of Microchip devices in life support and/or safety applications is entirely at the buyer’s risk, and the buyer agrees to defend, indemnify and hold harmless Microchip from any and all damages, claims, suits, or expenses resulting from such use. No licenses are conveyed, implicitly or otherwise, under any Microchip intellectual property rights. Trademarks The Microchip name and logo, the Microchip logo, dsPIC, FlashFlex, flexPWR, JukeBlox, KEELOQ, KEELOQ logo, Kleer, LANCheck, MediaLB, MOST, MOST logo, MPLAB, OptoLyzer, PIC, PICSTART, PIC32 logo, RightTouch, SpyNIC, SST, SST Logo, SuperFlash and UNI/O are registered trademarks of Microchip Technology Incorporated in the U.S.A. and other countries. The Embedded Control Solutions Company and mTouch are registered trademarks of Microchip Technology Incorporated in the U.S.A. Analog-for-the-Digital Age, BodyCom, chipKIT, chipKIT logo, CodeGuard, dsPICDEM, dsPICDEM.net, ECAN, In-Circuit Serial Programming, ICSP, Inter-Chip Connectivity, KleerNet, KleerNet logo, MiWi, MPASM, MPF, MPLAB Certified logo, MPLIB, MPLINK, MultiTRAK, NetDetach, Omniscient Code Generation, PICDEM, PICDEM.net, PICkit, PICtail, RightTouch logo, REAL ICE, SQI, Serial Quad I/O, Total Endurance, TSHARC, USBCheck, VariSense, ViewSpan, WiperLock, Wireless DNA, and ZENA are trademarks of Microchip Technology Incorporated in the U.S.A. and other countries. SQTP is a service mark of Microchip Technology Incorporated in the U.S.A. Silicon Storage Technology is a registered trademark of Microchip Technology Inc. in other countries. GestIC is a registered trademarks of Microchip Technology Germany II GmbH & Co. KG, a subsidiary of Microchip Technology Inc., in other countries. All other trademarks mentioned herein are property of their respective companies. © 2014-2015, Microchip Technology Incorporated, Printed in the U.S.A., All Rights Reserved. ISBN: 978-1-63276-971-8 QUALITY MANAGEMENT SYSTEM CERTIFIED BY DNV == ISO/TS 16949 == DS40001777B-page 2 Microchip received ISO/TS-16949:2009 certification for its worldwide headquarters, design and wafer fabrication facilities in Chandler and Tempe, Arizona; Gresham, Oregon and design centers in California and India. The Company’s quality system processes and procedures are for its PIC® MCUs and dsPIC® DSCs, KEELOQ® code hopping devices, Serial EEPROMs, microperipherals, nonvolatile memory and analog products. In addition, Microchip’s quality system for the design and manufacture of development systems is ISO 9001:2000 certified. 2014-2015 Microchip Technology Inc. Object of Declaration: MGC3030 Woodstar Development Kit User’s Guide 2014-2015 Microchip Technology Inc. DS40001777B-page 3 MGC3030 Woodstar Development Kit User’s Guide NOTES: DS40001777B-page 4 2014-2015 Microchip Technology Inc. MGC3030 WOODSTAR DEVELOPMENT KIT USER’S GUIDE Table of Contents Preface ........................................................................................................................... 7 Introduction............................................................................................................ 7 Document Layout .................................................................................................. 7 Conventions Used in this Guide ............................................................................ 8 Warranty Registration............................................................................................ 9 Recommended Reading........................................................................................ 9 The Microchip Web Site ...................................................................................... 10 Development Systems Customer Change Notification Service .......................... 10 Customer Support ............................................................................................... 11 Revision History .................................................................................................. 11 Chapter 1. Overview 1.1 Introduction ................................................................................................... 13 1.2 Woodstar Concept and Deliverables ............................................................ 13 1.3 Woodstar Development Kit Package Content .............................................. 14 1.4 GestIC® Hardware References .................................................................... 15 1.5 Aurea Software Package .............................................................................. 16 1.6 MGC3030/3130 Software Development Kit (SDK) ....................................... 16 Chapter 2. Getting Started 2.1 Prerequisites ................................................................................................ 17 2.2 Step 1: Development Kit Assembly .............................................................. 17 2.3 Step 2: Connecting the Woodstar Development Kit to the PC ..................... 18 2.4 Step 3: Installing Windows® CDC Driver ...................................................... 18 2.5 Step 4: Starting Aurea GUI ........................................................................... 18 Chapter 3. Woodstar Boards – Hardware Description 3.1 Overview ...................................................................................................... 21 3.1.1 I2C™ to USB Bridge .................................................................................. 21 3.1.2 MGC3030 Unit ........................................................................................... 21 3.1.3 95x60 mm Reference Electrode PCB ........................................................ 21 3.2 The MGC3030 Unit ...................................................................................... 22 3.3 95x60 mm Reference Electrode .................................................................. 23 3.4 I2C™ to USB Bridge .................................................................................... 25 Chapter 4. System Integration Using Woodstar 4.1 Introduction ................................................................................................... 27 4.2 Integration Examples .................................................................................... 27 2014-2015 Microchip Technology Inc. DS40001777B-page 5 MGC3030 Woodstar Development Kit User’s Guide Chapter 5. Troubleshooting 5.1 Power LED Does Not Illuminate ................................................................... 31 5.2 LED 1 Blinks Fast ........................................................................................ 31 5.3 Signal Streaming Stops ................................................................................ 31 5.4 Electrode Signals are Zero ........................................................................... 31 5.5 LED 1 and 2 on I2C to USB Bridge are OFF ................................................ 32 Appendix A. Schematics A.1 Introduction .................................................................................................. 33 A.2 Bill of Materials ............................................................................................. 33 A.3 Board Schematics and Layout ..................................................................... 35 Appendix B. Sensitivity Profile and Capacitances B.1 Introduction .................................................................................................. 39 B.2 Sensitivity Profiles ........................................................................................ 39 B.3 Electrode Capacities .................................................................................... 40 Appendix C. Driver Installation Manual C.1 Open Device Manager ................................................................................. 41 C.2 Select Device ............................................................................................... 41 C.3 Locate Driver ............................................................................................... 42 C.4 Verify Communication .................................................................................. 42 Appendix D. Glossary Worldwide Sales and Service .....................................................................................45 DS40001777B-page 6 2014-2015 Microchip Technology Inc. MGC3030 WOODSTAR 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. This number is located on the bottom of each page, in front of the page number. The numbering convention for the DS number is “DSXXXXXA”, where “XXXXX” is the document number and “A” is the revision level of the document. For the most up-to-date information on development tools, see the MPLAB® IDE online help. Select the Help menu, and then Topics to open a list of available online help files. INTRODUCTION This chapter contains general information that will be useful to know before using the MGC3030 Woodstar Development Kit. Items discussed in this chapter include: • • • • • • • • Document Layout Conventions Used in this Guide Warranty Registration Recommended Reading The Microchip Web Site Development Systems Customer Change Notification Service Customer Support Revision History DOCUMENT LAYOUT This document describes the installation and use of the MGC3030 Woodstar Development Kit. The document is organized as follows: • • • • • • • • • Chapter 1. “Overview” Chapter 2. “Getting Started” Chapter 3. “Woodstar Boards – Hardware Description” Chapter 4. “System Integration Using Woodstar” Chapter 5. “Troubleshooting” Appendix A. “Schematics” Appendix B. “Sensitivity Profile and Capacitances” Appendix C. “Driver Installation Manual” Appendix D. “Glossary” 2014-2015 Microchip Technology Inc. DS40001777B-page 7 MGC3030 Woodstar 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 Examples 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 ...is the only compiler... the Output window the Settings dialog select Enable Programmer “Save project before build” A dialog button A tab A number in verilog format, where N is the total number of digits, R is the radix and n is a digit. A key on the keyboard Click OK Click the Power tab 4‘b0010, 2‘hF1 Italic Courier New Sample source code Filenames File paths Keywords Command-line options Bit values Constants A variable argument Square brackets [ ] Optional arguments Curly brackets and pipe character: { | } Ellipses... Choice of mutually exclusive arguments; an OR selection Replaces repeated text Represents code supplied by user DS40001777B-page 8 File>Save Press <Enter>, <F1> #define START autoexec.bat c:\mcc18\h _asm, _endasm, static -Opa+, -Opa0, 1 0xFF, ‘A’ file.o, where file can be any valid filename mcc18 [options] file [options] errorlevel {0|1} var_name [, var_name...] void main (void) { ... } 2014-2015 Microchip Technology Inc. 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 MGC3030 Woodstar Development Kit. Other useful documents are listed below. The following Microchip documents are available and recommended as supplemental reference resources. • “GestIC® Design Guide” (DS40001716). This document describes the MGC3030/MGC3130 system characteristic parameters and the design process. It enables the user to generate a good electrode design and to parameterize the full GestIC® system. • “MGC3030/3130 GestIC® Library Interface Description User’s Guide” (DS40001718). This document is the interface description of the MGC3030/MGC3130 GestIC Library. It outlines the function of the Library’s message interface, and contains the complete message reference to control and operate the MGC3030/MGC3130 system. • “MGC3030/3130 3D Gesture Controller Data Sheet” (DS40001667). Consult this document for information regarding the MGC3030/MGC3130 3D Tracking and Gesture Controller. • “Aurea Graphical User Interface User’s Guide” (DS40001681). This document describes how to use the Aurea Graphical User Interface. 2014-2015 Microchip Technology Inc. DS40001777B-page 9 MGC3030 Woodstar 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. Accessible by using your favorite Internet browser, the web site contains the following information: • Product Support – Data sheets and errata, application notes and sample programs, design resources, user’s guides and hardware support documents, latest software releases and archived software • General Technical Support – Frequently Asked Questions (FAQs), technical support requests, online discussion groups, Microchip consultant program member listing • Business of Microchip – Product selector and ordering guides, latest Microchip press releases, listing of seminars and events, listings of Microchip sales offices, distributors and factory representatives DEVELOPMENT SYSTEMS CUSTOMER CHANGE NOTIFICATION SERVICE Microchip’s customer notification service helps keep customers current on Microchip products. Subscribers will receive e-mail notification whenever there are changes, updates, revisions or errata related to a specified product family or development tool of interest. To register, access the Microchip web site at www.microchip.com, click on Customer Change Notification and follow the registration instructions. The Development Systems product group categories are: • Compilers – The latest information on Microchip C compilers, assemblers, linkers and other language tools. These include all MPLAB® C compilers; all MPLAB assemblers (including MPASM™ assembler); all MPLAB linkers (including MPLINK™ object linker); and all MPLAB librarians (including MPLIB™ object librarian). • Emulators – The latest information on Microchip in-circuit emulators.This includes the MPLAB REAL ICE™ and MPLAB ICE 2000 in-circuit emulators. • In-Circuit Debuggers – The latest information on the Microchip in-circuit debuggers. This includes MPLAB ICD 3 in-circuit debuggers and PICkit™ 3 debug express. • MPLAB® IDE – The latest information on Microchip MPLAB IDE, the Windows® Integrated Development Environment for development systems tools. This list is focused on the MPLAB IDE, MPLAB IDE Project Manager, MPLAB Editor and MPLAB SIM simulator, as well as general editing and debugging features. • Programmers – The latest information on Microchip programmers. These include production programmers such as MPLAB REAL ICE in-circuit emulator, MPLAB ICD 3 in-circuit debugger and MPLAB PM3 device programmers. Also included are nonproduction development programmers such as PICSTART® Plus and PICkit 2 and 3. DS40001777B-page 10 2014-2015 Microchip Technology Inc. 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. Technical support is available through the web site at: http://www.microchip.com/support. REVISION HISTORY Revision A (November, 2014) Initial release of the document. Revision B (January, 2015) Updated the Recommended Reading section; Other minor corrections. 2014-2015 Microchip Technology Inc. DS40001777B-page 11 MGC3030 Woodstar Development Kit User’s Guide NOTES: DS40001777B-page 12 2014-2015 Microchip Technology Inc. MGC3030 WOODSTAR DEVELOPMENT KIT USER’S GUIDE Chapter 1. Overview 1.1 INTRODUCTION MGC3030 is a product based on Microchip’s patented GestIC® technology. It is developed as a mixed-signal controller. MGC3030 has one transmit and five very sensitive receive channels that are capable of detecting changes of a transmitted electrical field (E-field) corresponding to capacitive changes in the femtofarad (1 fF = 10-15F) range. In order to transmit and receive an electrical field, electrodes have to be connected to the transmitting and receiving channels of the MGC3030 controller. The spatial arrangement of the electrodes allows the chip to determine the center of gravity of the electric field distortion, and thus gesture recognition of a user’s hand in the detection space. 1.2 WOODSTAR CONCEPT AND DELIVERABLES The Woodstar Development Kit is designed to support an easy integration of Microchip’s MGC3030 3D Gesture Controller into the customer’s applications. It provides MGC3030 system setup, related hardware and software references: • Aurea Software Package with the Aurea Graphical User Interface and GestIC Library • MGC3030/3130 Software Development Kit (SDK) • MGC3030/3130 PIC18 Host Reference code With the help of these tools, the design-in process can be easily performed in five steps: 1. 2. 3. 4. 5. Feature Definition Electrode Design MGC3030 Parameterization Host Application Programming Verification Tutorial videos for the design-in process can be found on www.microchip.com/videohmidtutorials. Woodstar hardware builds a complete MGC3030 reference system consisting of three individual PCBs: • MGC3030 Unit • I2C™ to USB Bridge • Reference Electrode with a 95x60 mm sensitive area 2014-2015 Microchip Technology Inc. DS40001777B-page 13 MGC3030 Woodstar Development Kit User’s Guide It can be plugged to a PC via a USB cable and used for evaluation of the MGC3030 chip and the GestIC technology. During the customer’s design-in process the individual boards can be combined according to the customer’s needs. Three examples are given below: • Combine the MGC3030 unit and the I2C to USB bridge to evaluate customized electrodes • Use the I2C to USB bridge to parameterize and debug the MGC3030 application circuitry in the customer’s design • Combine the MGC3030 unit and electrodes to develop gesture-driven applications for PC-based or embedded software environments 1.3 WOODSTAR DEVELOPMENT KIT PACKAGE CONTENT The Woodstar Development Kit package content is listed below: • • • • MGC3030 Module I2C to USB Bridge Module Reference Electrode (95x60 mm sensitive area) USB Cable for PC Connection FIGURE 1-1: DS40001777B-page 14 WOODSTAR DEVELOPMENT KIT 2014-2015 Microchip Technology Inc. Overview 1.4 GestIC® HARDWARE REFERENCES The GestIC Hardware References package contains the PCB layouts (Gerber files) for the MGC3030/3130 development kits (Hillstar and Woodstar) and a collection of electrode reference designs fitting both kits. In addition, the package includes designs, parameter files and host code of various demonstrators which represent complete systems for embedded or PC-based applications. New designs will be added to the package once they are available. The GestIC Hardware Reference package can be downloaded from Microchip’s web site via www.microchip.com/gesticresources. TABLE 1-1: PACKAGE CONTENT (BASED ON V1.0.6) Sensitive Area (mm) Outline (mm) PCB Layers Fit to Hillstar MGC3130 Unit — — 2 √ — — — MGC3030 Unit — — 2 — √ — — Module Name 2C™ Host Code — — 2 √ √ — (Note 1) Reference Electrode 30x30 2-Layer 30x30 49x49 2 √ √ — — Reference Electrode 30x30 4-Layer 30x30 49x49 4 √ √ √ — Reference Electrode 50x30 2-Layer 50x30 63x47 2 √ √ — — Reference Electrode 80x80 2-Layer 80x80 104x104 2 √ √ — — Reference Electrode 95x60 2-Layer 95x60 120x85 2 √ √ — — Reference Electrode 95x60 4-Layer 95x60 120x85 4 √ √ √ — Reference Electrode 100x50 2-Layer 100x50 128x72 2 √ √ — — Reference Electrode 100x50 4-Layer 100x50 128x72 4 √ √ √ — Reference Electrode 140x90 2-Layer 140x90 168x119 2 √ √ — — Reference Electrode Ring 95x60 95x60 120x85 2 √ √ √ — Reference Electrode Ring 128x90 112x76 128x90 2 √ √ √ — GestIC® Electrode Prototype Kit 85x85 100x110 N/A — — — — MGC3130 Sensor Module 30x30 30x30 49x49 4 — — √ — MGC3130 Sensor Module 95x60 95x60 120x85 4 — — √ — MGC3130 Embedded Demo 42x75 60x150 2 — — √ √ MGC3130 Gesture Port Demo D = 50 63.5x63.5 4 — — √ — I to USB Bridge Fit to Parameter Woodstar File Note 1: Reference code for the PIC18F14K50 on the I2C to USB bridge can be found in the PIC18F14K50 Reference Code package on the Microchip web page. 2014-2015 Microchip Technology Inc. DS40001777B-page 15 MGC3030 Woodstar Development Kit User’s Guide 1.5 AUREA SOFTWARE PACKAGE The Aurea Software Package contains all relevant system software and documentation. The Woodstar Development Kit is supported by Aurea Software Package V1.2 onwards. The package contains: • • • • • Aurea PC Software GestIC Library (firmware) Binary File GestIC Parameterization Files Windows® CDC Driver Documentation The latest Aurea Software Package can be downloaded from Microchip’s web site via www.microchip.com/gesticresources. Please find a collection of www.microchip.com/videohmidtutorials. 1.6 GestIC/Aurea tutorial videos at MGC3030/3130 SOFTWARE DEVELOPMENT KIT (SDK) The MGC3030/3130 Software Development Kit (SDK) supports the integration of MGC3030 into a software environment. Thus, it includes a C reference code for GestIC API, a precompiled library for Windows operating systems, and a demo application using the GestIC API interface. Woodstar Development Kit is supported by MGC3030/3130 SDK V1.1 onwards. The latest SDK can be downloaded www.microchip.com/gesticresources. DS40001777B-page 16 from Microchip’s web site via 2014-2015 Microchip Technology Inc. MGC3030 WOODSTAR DEVELOPMENT KIT USER’S GUIDE Chapter 2. Getting Started The Woodstar 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. 2.1 PREREQUISITES The following prerequisites have to be fulfilled: • PC with Windows 7 or Windows 8 operating systems, USB port and minimum screen resolution of 1024x768 • Woodstar Development Kit (MGC3030 unit, I2C to USB bridge, 95x60 mm frame electrode) • Aurea Software Package V1.2 onwards The Aurea Software Package is available as .zip file. Unzip the file, run setup.exe and install the package to the PC. The folder structure is as shown in Figure 2-1. FIGURE 2-1: 2.2 FOLDER STRUCTURE STEP 1: DEVELOPMENT KIT ASSEMBLY Connect the electrodes, the MGC3030 unit and the I2C to USB bridge as shown in Figure 2-2. Note: Make sure the MGC3030 unit and the I2C to USB bridge are already connected before plugging in the USB connection. 2014-2015 Microchip Technology Inc. DS40001777B-page 17 MGC3030 Woodstar Development Kit User’s Guide FIGURE 2-2: WOODSTAR DEVELOPMENT KIT ASSEMBLY I²CTM to USB Bridge MGC3030 Unit Electrode Module 2.3 STEP 2: CONNECTING THE WOODSTAR DEVELOPMENT KIT TO THE PC Use the supplied USB cable to connect the Woodstar Development Kit to your PC. The power LEDs on both the I2C to USB bridge and the MGC3030 unit will illuminate. Furthermore, LED 1 on the I2C to USB bridge will flash very fast (~10 Hz). If LED 1 is flashing slow (~1 Hz), the Windows CDC driver is already installed on your PC. Please skip the next step and go to Section 2.5 “Step 4: Starting Aurea GUI”. 2.4 STEP 3: INSTALLING WINDOWS® CDC DRIVER The Windows CDC driver can be found in the Aurea Software Package in folder 04_Driver. When the Woodstar Development Kit is connected to the PC for the first time, Windows requests the appropriate device driver and guides the user through the installation process. Alternatively, the driver can be installed manually, for example, by using the device manager. An example for Windows 7 is given in Appendix C. “Driver Installation Manual”. 2.5 STEP 4: STARTING AUREA GUI Aurea Graphical User Interface, shown in Figure 2-3, is included in the Aurea Software Package in folder 02_Aurea. Open Aurea.exe. Aurea automatically detects the connected device and is ready for use. DS40001777B-page 18 2014-2015 Microchip Technology Inc. Getting Started FIGURE 2-3: AUREA GRAPHICAL USER INTERFACE Evaluate Colibri Suite Discover Signals Setup MGC3030 1. View signals 1. AFE parameterisation 2. Write log file 2. Colibri Suite parameterization 3. Advanced features 3. Update GestIC Library 1. Gesture Recognition 2. Demo applications ® 4. Measure Electrode capacitances 2014-2015 Microchip Technology Inc. DS40001777B-page 19 MGC3030 Woodstar Development Kit User’s Guide NOTES: DS40001777B-page 20 2014-2015 Microchip Technology Inc. MGC3030 WOODSTAR DEVELOPMENT KIT USER’S GUIDE Chapter 3. Woodstar Boards – Hardware Description 3.1 OVERVIEW The Woodstar key components are listed below and highlighted in Figure 3-1. FIGURE 3-1: WOODSTAR DEVELOPMENT KIT OVERVIEW 12 2 5 1 8 6 11 10 7 4 13 14 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 micro-B connector MCP1801T LDO voltage regulator (converts 5V USB to 3.3V board supply) Status LEDs (power, communication status) Data interface: 6-pin socket for data communication and power supply 3.1.2 6. 7. 8. 9. 10. 11. MGC3030 Unit MGC3030 Unit MGC3030 3D Gesture Controller Data interface: 6-pin header for data communication and power supply Status LED (power) Interface select Electrode interface: 7-pin socket Gesture Port Header 3.1.3 95x60 mm Reference Electrode PCB 12. Receive electrodes 13. Acrylic cover glass (120 x 85 x 2 mm) 14. Electrode interface: 7-pin header (mounted on backside) The Gerber data of all Woodstar Development Kit components are included in the GestIC Reference Design package and can be downloaded from Microchip’s web site via www.microchip.com/gesticresources. 2014-2015 Microchip Technology Inc. DS40001777B-page 21 MGC3030 Woodstar Development Kit User’s Guide 3.2 THE MGC3030 UNIT The key element of the MGC3030 unit is Microchip’s MGC3030 3D Gesture Controller. The layout print of the unit is shown in Figure 3-2. FIGURE 3-2: THE MGC3030 UNIT TM The unit provides a 2 mm 7-pin board-to-board connector (socket) to connect the electrode. The interface includes the following signals: GND, Rx4, Rx3, Tx, Rx2, Rx1, and Rx0. Alternatively, the board-to-board connector can be replaced by a 1 mm Flexible Printed Circuitry (FPC) connector which is prepared as a design option. The five Rx channels of the MGC3030 (Rx0…Rx4) are connected to the receive electrodes via 10 k resistors in order to suppress irradiated high-frequency signals (R11, R12, R13, R14, and R15). The MGC3030 signal generator is connected via the Tx signal to the transmit electrode. The access to the MGC3030 Gesture Port pins is provided by six pads at the side of the board (EIO1, EIO2, EIO6, EIO7, EIO3, and GND). The data connection to the Woodstar I2C to USB bridge is done by a 2 mm 6-pin board-to-board connector (header). The interface includes the following signals: EIO0, 3.3V, GND, SDA0, SCL0, and MCLR. Alternatively, it is possible to use a 1 mm FPC connector which can be assembled to the bottom side. The MGC3030 unit acts as an I2C slave device. Table 3-1 shows the configuration of the MGC3030 interface selection pins (IS1, IS2), which can be pulled to VDD or to GND via resistors (R3, R4, R5, and R6) to select the I2C slave address. The I2C device address 0x42 is set as default. TABLE 3-1: MGC3030 UNIT I2C™ INTERFACE SELECTION MGC3030 Interface Selection Pins IS2 0 1 Assembly Option Mode (Address) IS1 0 0 2 I C™0 Slave Address = 0x42 (default) I 2C™0 Slave Address = 0x43 R3 R4 R5 R6 n.p. 10 k n.p. 10 k 10 k n.p. n.p. 10 k For schematics, layout and bill of material of the MGC3030 unit, please refer to Appendix A. “Schematics”. DS40001777B-page 22 2014-2015 Microchip Technology Inc. Woodstar Boards – Hardware Description 3.3 95x60 mm REFERENCE ELECTRODE The 95x60 mm reference electrode provided with the Woodstar 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 to shield the electrode’s back from external influences. FIGURE 3-3: ELECTRODE LAYOUT The PCB is connected to the MGC3030 unit by the 2 mm 7-pin board-to-board connector. The interface includes the following signals: GND, Rx4, Rx3, Tx, Rx2, Rx1, and Rx0. The dimension of the board is 120 x 85 mm; the sensitive area is 95 x 60 mm. The five Rx electrodes include four frame electrodes and one center electrode, as shown in Figure 3-3. The frame electrodes are named according to their cardinal directions: North, East, South and West. The dimensions of the four Rx frame electrodes define the maximum sensing area. The center electrode is structured (cross-hatched) to get a similar input signal level as the four frame electrodes. The Tx electrode spans over the complete area underneath the Rx electrodes. It is cross-hatched to reduce the capacitance between Rx and Tx (CRxTx). The Tx area underneath the center electrode covers 50% of the copper plane, the area around the center electrode covers only 20%. The Rx feeding lines are embedded into the Tx electrode in the third layer (refer to Figure 3-4 and Figure 3-5). This supports shielding of the feeding lines. Dimensions are given in Table 3-2. 2014-2015 Microchip Technology Inc. DS40001777B-page 23 MGC3030 Woodstar Development Kit User’s Guide FIGURE 3-4: TABLE 3-2: ELECTRODE LAYOUT WOODSTAR ELECTRODE DIMENSIONS Part Length Horizontal Electrodes (Rx) 91.7 mm Width Design 5 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 50.5 mm 85 mm 50% cross-hatched 20% cross-hatched Ground Area 120 mm 85 mm Solid The electrode PCB is based on a 4-layer PCB design using FR4 material. Three functional layers are used: • Layer 1 (Top): Rx electrodes • Layer 3: Tx electrode and Rx feeding lines • Layer 4 (Bottom): Ground Layer 2 is not used. DS40001777B-page 24 2014-2015 Microchip Technology Inc. Woodstar 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 Woodstar 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. Note: Please refer to the “GestIC® Design Guide” for the electrodes equivalent circuitry, capacitances (CRxTx, CRxG, TxRxG) and their typical values. 3.4 I2C TO USB BRIDGE Connecting the MGC3030 unit to a PC requires an I2C to USB bridge. The GestIC bridge works as a composite device class (CDC). It controls the USB transfer towards the host PC and handles the I2C communication with the MGC3030 unit. Moreover, it provides 3.3V power supply and the MCLR signal to the MGC3030 unit. The bridge function is handled by Microchip’s PIC18F14K50 USB microcontroller. The board is equipped with a micro-USB connector (Type B) and a 2 mm 6-pin female board-to-board connector for the I2C interface. The interface to the MGC3030 unit includes the following signals: EIO0, 3.3V, GND, SDA0, SCL0, and MCLR. Please refer to Figure 3-6. FIGURE 3-6: I2C™ TO USB BRIDGE Micro USB Interface N/C CLK DAT GND VDD VPP ICSPTM Interface 2014-2015 Microchip Technology Inc. DS40001777B-page 25 MGC3030 Woodstar 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 MGC3030 unit via the I2C interface. The 3.3V power supply towards the MGC3030 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 (3.3V) LED1 blinks fast (~10 Hz) – indicates that there is no USB connection established LED1 blinks slow (~1 Hz) – indicates that the USB connection is established LED 2 is ON when there is data on the I2C bus LED 2 is OFF when there is no data on the I2C bus The communication between bridge and the MGC3030 unit is accomplished via a 2-wire I2C compatible serial port. Please refer to Figure 3-7. In addition, the Woodstar Development Kit integrates an open-drain transfer status line (TS) and the MGC3030 MCLR signal, according to the MGC3030 reference circuitry. TS is connected to the RC0 pin of the PIC18F14K50 and MCLR to RC6. For a detailed description of the I2C interface refer to the “MGC3030/3130 3D Gesture Controller Data Sheet” (DS40001667). The default I2C address of the bridge is set to 0x42 but it can also be switched to 0x43 by changing the firmware running on the PIC18F14K50. Note: To update the PIC18F14K50 firmware, please refer to the MGC3030/3130 PIC18F14K50 Host Reference Code, available on Microchip’s web site via www.microchip.com/gesticresources. I2C™ AND USB DATA INTERFACE FIGURE 3-7: I2CTM Master 10kΩ 1.8kΩ 1.8kΩ MGC3030 10kΩ 3.3V I2CTM Slave PIC18F14K50 USB SI0 SI1 EIO0 MCLR SDA SCL RB4 RB6 TS MCLR RC0 RC6 MGC3030 Unit RA0 USB D+ RA1 USB D- I2CTM to USB Bridge PC For schematics, layout and bill of material of the I2C to USB bridge, please refer to Appendix A. “Schematics”. DS40001777B-page 26 2014-2015 Microchip Technology Inc. MGC3030 WOODSTAR DEVELOPMENT KIT USER’S GUIDE Chapter 4. System Integration Using Woodstar 4.1 INTRODUCTION The Woodstar Development Kit is designed to support an easy integration of Microchip’s MGC3030 3D Gesture Controller into the customer’s applications. The three Woodstar PCBs can be plugged to a PC via a USB cable and used for evaluation of the MGC3030 chip and the GestIC technology. During the customer’s design-in process the individual boards can be combined according to the customer’s needs. Three examples are given below: • Combine MGC3030 unit and I2C to USB bridge to evaluate customized electrodes • Use I2C to USB bridge to parameterize and debug the MGC3030 application circuitry in the customer’s design (in-circuit) • Combine MGC3030 unit and electrodes to develop gesture-driven applications for PC-based or embedded software environments For in-circuit parameterization and debugging it is mandatory to control the MGC3030 unit via Aurea Control Software. For that purpose, the customer’s application should provide an appropriate hardware or software interface. 4.2 INTEGRATION EXAMPLES The following figures show typical hardware circuits for the integration of MGC3030 into a customer’s application. Figure 4-1 and Figure 4-2 show the control via I2C and an external PC. The Woodstar I2C to USB bridge acts as an I2C master. The application processor I2C should be: • Switched OFF – I2C lines configured as high Z (refer to Figure 4-1) • Switched to Slave or Listen mode • Disconnected through an external switch (refer to Figure 4-2) As an alternative, it is also possible to establish a USB connection between the application processor and a PC without using an I2C to USB bridge. Please refer to Figure 4-3. 2014-2015 Microchip Technology Inc. DS40001777B-page 27 MGC3030 Woodstar Development Kit User’s Guide FIGURE 4-1: MGC3030 PARAMETERIZATION CIRCUIT WITH INTERNAL SWITCH AU USB cable RE USB to I²C70 (HID) TS I²C70 SDA I²C70 SCL Reset I²C70 to USB Bridge USB Bridge A For debugging and parametetrization purposes Customer application TS I²C70 SDA I²C70 SCL Reset Application Processor MGC 3030 High Z for bridge access 2 C70 I client To electrodes FIGURE 4-2: MGC3030 PARAMETERIZATION CIRCUIT WITH EXTERNAL SWITCH AU USB cable RE USB to I²C70 (HID) TS I²C70 SDA I²C70 SCL Reset I²C70 to USB Bridge USB Bridge A For debugging and parametetrization purposes Customer application TS I²C70 SDA I²C70 SCL Reset MGC 3030 To electrodes DS40001777B-page 28 open for bridge access Application Processor I2C70 client 2014-2015 Microchip Technology Inc. System Integration Using Woodstar FIGURE 4-3: MGC3030 PARAMETERIZATION CIRCUIT FOR USB-BASED APPLICATIONS AU RE A USB cable For debugging and parametetrization purposes Customer application Application Processor TS I²C70 SDA 70 I²C70 SCL USB to I²C (CDC/HID) Reset MGC 3030 I2C70 client To electrodes TABLE 4-1: MGC3030 PARAMETERIZATION CIRCUITS COMPARISON Parameterization Circuit With Internal Switch Advantages Drawbacks Easy approach Processor pins need to be switchable to high Z Low hardware efforts No other clients can be controlled during Aurea access With External Switch Communication to other I2C™ Additional hardware switch clients not interrupted USB-Based Applications No hardware efforts Additional software efforts I2C™ Works if other clients connected to the bus 2014-2015 Microchip Technology Inc. DS40001777B-page 29 MGC3030 Woodstar Development Kit User’s Guide NOTES: DS40001777B-page 30 2014-2015 Microchip Technology Inc. MGC3030 WOODSTAR DEVELOPMENT KIT USER’S GUIDE Chapter 5. Troubleshooting 5.1 POWER LED DOES NOT ILLUMINATE If 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. 5.2 LED 1 BLINKS FAST When LED 1 blinks fast (~10 Hz), the USB connection is not established towards the PC. Possible solutions: • Make sure the Windows CDC driver is installed (refer to Appendix C. “Driver Installation Manual”). • Make sure the MGC3030 unit and the I2C to USB bridge are already connected before plugging in the USB connection (refer to Section 2.2 “Step 1: Development Kit Assembly”). • Reconnect the board by unplugging the USB connection and plugging it in again. 5.3 SIGNAL STREAMING STOPS Signal stream in Aurea GUI stops when there is no approach towards the sensing area. This behavior is intended. When using the Aurea GUI, the Wake-up on Approach feature is automatically enabled. Possible solutions: Disable the Wake-up on Approach feature in the Real-Time Control bar of Aurea by unchecking the Approach Detection/Power Saving check box for continuous signal streaming. 5.4 ELECTRODE SIGNALS ARE ZERO Signal matching parameters have been mismatched and accidentally stored into the Flash. Possible solutions: • Perform “Autoparameterization” in the AFE Parameterization of the Aurea Setup tab. Make sure there is no hand approach towards the electrodes during the autoparamterization process. • Restore the default Signal Matching parameters by re-flashing the original MGC3030 GestIC Library file. 2014-2015 Microchip Technology Inc. DS40001777B-page 31 MGC3030 Woodstar Development Kit User’s Guide 5.5 LED 1 AND 2 ON I2C TO USB BRIDGE ARE OFF When LED 1 and LED 2 on the I2C to USB bridge are OFF but the power LED is ON, the PIC18F14K50 is in Bootloader Update mode and therefore not operating code. The PIC18F14K50 will start in Bootloader Update mode in case the MGC3030 unit is not connected to the I2C to USB bridge. Possible solutions: • Please disconnect the I2C to USB bridge from the USB. Connect the MGC3030 unit and the I2C to USB bridge first and then plug in the USB connection. DS40001777B-page 32 2014-2015 Microchip Technology Inc. MGC3030 WOODSTAR DEVELOPMENT KIT USER’S GUIDE Appendix A. Schematics A.1 INTRODUCTION This appendix contains the MGC3030 Woodstar 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, Micro 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, 6.3 V, SMD 0603 C4 3 LED, 571 nm, green clear, 0603 SMD D1, D2, D3 1 IC, MCP1801T LDO, Voltage Regulator, 3.3V, 150 mA, 5-Pin SOT-23 IC1 1 IC, PIC18F14K50 USB Flash Microcontroller, 20-Pin SSOP IC2 3 Resistor, 1 kΩ, 1%, 1/16W, SMD 0402 R3, R4, R6 1 Resistor, 150 kΩ, 1%, 1/16W, SMD 0402 R5 1 Resistor, 0 kΩ, 1%, 1/16W, SMD 0603 R7 1 Crystal, 12 MHz, 33 pF, SMD XTAL1 TABLE A-2: Qty. 1 I2C™ TO USB BRIDGE MOUNTING OPTION Description Connector, 1 mm FPC 6-pin, SMD 2014-2015 Microchip Technology Inc. BU1 Name ST1 DS40001777B-page 33 MGC3030 Woodstar Development Kit User’s Guide TABLE A-3: Qty. 1 Description Name Connector, 2mm socket 7pin, SMD BU1 1 Connector, 2mm header 6pin, SMD ST1 1 Capacitor, 100nF, 10%, X7R, SMD 0402 C1 2 Capacitor, 4.7µF, 20%, X5R, 6.3V, SMD 0402 C2, C3 1 LED, 571nm green clear, 0603 SMD D1 1 IC, MGC3030 3D Gesture Controller, 28 Pin SSOP IC1 2 Resistor, 1.8kΩ, 1%, 1/16W, SMD 0402 R1, R2 3 Resistor, 10kΩ, 1%, 1/16W, SMD 0603 R4, R6, R7 6 Resistor, 10kΩ, 1%, 1/16W, SMD 0402 R9, R11, R12, R13, R14, R15 1 Resistor, 1kΩ, 1%, 1/16W, SMD 0402 R10 TABLE A-4: Qty. 1 Qty. 1 MGC3030 UNIT MOUNTING OPTION Description Name Connector, 1 mm FPC 6-pin, SMD TABLE A-5: DS40001777B-page 34 MGC3030 UNIT BILL OF MATERIALS ST3 REFERENCE ELECTRODE BILL OF MATERIALS Description Connector, 1 mm FPC 6-pin, SMD Name ST2 2014-2015 Microchip Technology Inc. BOARD SCHEMATICS AND LAYOUT MGC3030 UNIT SCHEMATIC FIGURE A-1: 2014-2015 Microchip Technology Inc. A.3 TM Schematics DS40001777B-page 35 MGC3030 Woodstar Development Kit User’s Guide FIGURE A-2: ASSEMBLY OF MGC3030 UNIT TM Top View TM Bottom View DS40001777B-page 36 2014-2015 Microchip Technology Inc. I2C™ TO USB BRIDGE SCHEMATIC TM 2014-2015 Microchip Technology Inc. FIGURE A-3: TM Schematics DS40001777B-page 37 MGC3030 Woodstar Development Kit User’s Guide ASSEMBLY OF I2C™ TO USB BRIDGE FIGURE A-4: VPP DAT GND VDD N/C Micro USB Interface CLK ICSPTM Interface Top View TM TM Bottom View TM DS40001777B-page 38 2014-2015 Microchip Technology Inc. MGC3030 WOODSTAR 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 Woodstar Development Kit hardware. The measurement procedure of both the sensitivity profile and the electrode capacitances are outlined in “GestIC® Design Guide” (DS40001716). B.2 SENSITIVITY PROFILES The sensitivity profiles were conducted using a 40x40x70 mm artificial hand at a constant height of 30 mm above the electrode’s surface. FIGURE B-1: SENSITIVITY PROFILE FROM WEST TO EAST West -> East 500 450 ^ignal deviation/digits 400 350 316 322 287 300 340 340 314 307 SD North 222 218 SD East 179 177 200 136 150 107 100 27 3450 275 269 269 230 250 322 45 64 SD South 136 111 SD West 84 80 63 SD Center 45 39 27 0 istance to West 2014-2015 Microchip Technology Inc. SD: Signal Deviation DS40001777B-page 39 MGC3030 Woodstar Development Kit User’s Guide FIGURE B-2: SENSITIVITY PROFILE FROM NORTH TO SOUTH North -> South 500 ^ignal deviation/digits 450 400 352 356 348 341 328 321 350 374 386 382 369 345 329 299 293 300 254 250 200 357 265 218 SD North 224 SD East 188 185 159 154 SD South 131 150124 95 77 100 SD West 108 85 SD Center 69 50 0 istance to North SD: Signal Deviation B.3 ELECTRODE CAPACITIES The capacitances between the Rx electrodes and GND (CRxG) do not include the 5 pF input capacitance of the MGC3030 Rx input buffer (CBuf). TABLE B-1: GestIC® ELECTRODE CAPACITIES(1) CRxG Channel North 9 pF 20 pF East 9 pF 18 pF South 9 pF 20 pF West 8 pF 18 pF Center 7 pF 65 pF Note 1: DS40001777B-page 40 CRxTx CTxG = 590 pF 2014-2015 Microchip Technology Inc. MGC3030 WOODSTAR DEVELOPMENT KIT USER’S GUIDE Appendix C. Driver Installation Manual This section lists the steps to be taken in order to manually install the Windows CDC Driver on the PC. C.1 OPEN DEVICE MANAGER While the Woodstar Development Board is connected to the PC press Start, right-click on Computers and select Manage. This will bring up the Computer Management window shown in Figure C-1. On the left sidebar select Device Manager. FIGURE C-1: C.2 COMPUTER MANAGEMENT SELECT DEVICE 1. Right Click on GestIC Bridge and select Update Driver Software. 2. Select Search Method 3. The window shown in Figure C-2 will open. Choose Browse my Computer for driver software. 2014-2015 Microchip Technology Inc. DS40001777B-page 41 MGC3030 Woodstar Development Kit User’s Guide FIGURE C-2: C.3 Update Driver Software LOCATE DRIVER 1. Click Browse and navigate to the driver files on your local drive (refer to Figure C-3). 2. Press Next and the driver will be installed. FIGURE C-3: C.4 Browse for Driver Software VERIFY COMMUNICATION The driver is properly installed and the communication between the PC and the Woodstar Development Board is successfully established when LED 1 and LED 2 blink alternatively. DS40001777B-page 42 2014-2015 Microchip Technology Inc. MGC3030 WOODSTAR DEVELOPMENT KIT USER’S GUIDE Appendix D. Glossary TABLE D-1: GLOSSARY Term Definition AFE Analog Front End Application Host PC or embedded controller which controls the MGC3030 Aurea MGC3030/3130 PC control software with graphical user interface Colibri Suite Embedded DSP suite within the GestIC® Library Deep Sleep MGC3030/3130 Power-Saving mode E-field Electrical field Frame Electrodes ® Rectangular set of four electrodes for E-field sensing GestIC Technology Microchip’s patented technology providing 3D free-space gesture recognition utilizing the principles of electrical near-field sensing GestIC® Library Includes the implementation of MGC3030/3130 features and is delivered as a binary file preprogrammed on the MGC3030 Gesture Recognition Microchip’s stochastic HMM classifier to automatically detect and classify hand movement patterns Gesture Set A set of provided hand movement patterns HMM Hidden Markov Model MGC3130 Single-Zone 3D Gesture and Motion Tracking Controller MGC3030 Single-Zone 3D Gesture Sensing Controller Position Tracking GestIC® technology feature Self Wake-up MGC3030/3130 Power-Saving mode Sensing Area Area enclosed by the four frame electrodes Sensing Space Space above sensing area Signal Deviation Term for the delta of the sensor signal on approach of the hand versus non-approach SPU Signal Processing Unit Approach Detection GestIC® technology feature: Power-Saving mode of the MGC3030/3130 with approach detection 2014-2015 Microchip Technology Inc. DS40001777B-page 43 MGC3030 Woodstar Development Kit User’s Guide NOTES: DS40001777B-page 44 2014-2015 Microchip Technology Inc. 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