MCP2200 USB to RS-232 Demo Board User’s Guide  2010 Microchip Technology Inc. DS51901A

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 Trademarks applications and the like is provided only for your convenience The Microchip name and logo, the Microchip logo, dsPIC, and may be superseded by updates. It is your responsibility to KEELOQ, KEELOQ logo, MPLAB, PIC, PICmicro, PICSTART, ensure that your application meets with your specifications. PIC32 logo, rfPIC and UNI/O are registered trademarks of MICROCHIP MAKES NO REPRESENTATIONS OR Microchip Technology Incorporated in the U.S.A. and other WARRANTIES OF ANY KIND WHETHER EXPRESS OR countries. IMPLIED, WRITTEN OR ORAL, STATUTORY OR OTHERWISE, RELATED TO THE INFORMATION, FilterLab, Hampshire, HI-TECH C, Linear Active Thermistor, INCLUDING BUT NOT LIMITED TO ITS CONDITION, MXDEV, MXLAB, SEEVAL and The Embedded Control QUALITY, PERFORMANCE, MERCHANTABILITY OR Solutions Company are registered trademarks of Microchip FITNESS FOR PURPOSE. Microchip disclaims all liability Technology Incorporated in the U.S.A. arising from this information and its use. Use of Microchip Analog-for-the-Digital Age, Application Maestro, CodeGuard, devices in life support and/or safety applications is entirely at dsPICDEM, dsPICDEM.net, dsPICworks, dsSPEAK, ECAN, the buyer’s risk, and the buyer agrees to defend, indemnify and ECONOMONITOR, FanSense, HI-TIDE, In-Circuit Serial hold harmless Microchip from any and all damages, claims, Programming, ICSP, Mindi, MiWi, MPASM, MPLAB Certified suits, or expenses resulting from such use. No licenses are logo, MPLIB, MPLINK, mTouch, Octopus, Omniscient Code conveyed, implicitly or otherwise, under any Microchip Generation, PICC, PICC-18, PICDEM, PICDEM.net, PICkit, intellectual property rights. PICtail, REAL ICE, rfLAB, Select Mode, Total Endurance, TSHARC, UniWinDriver, WiperLock 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. All other trademarks mentioned herein are property of their respective companies. © 2010, Microchip Technology Incorporated, Printed in the U.S.A., All Rights Reserved. Printed on recycled paper. ISBN: 978-1-60932-147-5 Microchip received ISO/TS-16949:2002 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. DS51901A-page 2  2010 Microchip Technology Inc.

MCP2200 USB TO RS-232 DEMO BOARD USER’S GUIDE Table of Contents Preface ...........................................................................................................................5 Chapter 1. Product Overview 1.1 Introduction .....................................................................................................9 1.2 What is the MCP2200 USB to RS-232 Demo Board? ....................................9 1.3 MCP2200 USB to RS-232 Demo Board Kit Contents ....................................9 Chapter 2. MCP2200 USB to RS-232 Demo Board 2.1 Introduction ...................................................................................................11 2.2 Setup ............................................................................................................11 2.3 Operation ......................................................................................................12 Appendix A. Schematic and Layouts A.1 Introduction ..................................................................................................15 A.2 Board – Schematic .......................................................................................16 A.3 Board – Top Copper, Silk and Pads ...........................................................17 A.4 Board – Top Copper and Pads ....................................................................17 A.5 Board – Top Silk and Pads .........................................................................18 A.6 Board – Bottom Copper and Pads ...............................................................18 Appendix B. Bill of Materials (BOM) Worldwide Sales and Service ....................................................................................20  2010 Microchip Technology Inc. DS51901A-page 3

MCP2200 USB to RS-232 Demo Board User’s Guide NOTES: DS51901A-page 4  2010 Microchip Technology Inc.

MCP2200 USB TO RS-232 DEMO BOARD 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 on-line help. Select the Help menu, and then Topics to open a list of available on-line help files. INTRODUCTION This chapter contains general information that will be useful to know before using the MCP2200 USB to RS-232 Demo Board. Items discussed in this chapter include: • Document Layout • Conventions Used in this Guide • Recommended Reading • The Microchip Web Site • Customer Support • Document Revision History DOCUMENT LAYOUT This document describes how to use the MCP2200 USB to RS-232 Demo Board as an evaluation tool for the MCP2200 General Purpose I/O Expander. The manual layout is as follows: • Chapter 1.“Product Overview” – Important information about the MCP2200 USB to RS-232 Demo Board. • Chapter 2.“MCP2200 USB to RS-232 Demo Board” – Includes instructions on how to get started with this evaluation board. • Appendix A.“Schematic and Layouts” – Shows the schematic and layout diagrams for the MCP2200 USB to RS-232 Demo Board. • Appendix B.“Bill of Materials (BOM)” – Lists the parts used to build the MCP2200 USB to RS-232 Demo Board.  2010 Microchip Technology Inc. DS51901A-page 5

MCP2200 USB to RS-232 Demo Board User’s Guide CONVENTIONS USED IN THIS GUIDE This manual uses the following documentation conventions: DOCUMENTATION CONVENTIONS Description Represents Examples Arial font: Italic characters Referenced books MPLAB® IDE User’s Guide Emphasized text ...is the only compiler... Initial caps A window the Output window A dialog the Settings dialog A menu selection select Enable Programmer Quotes A field name in a window or “Save project before build” dialog Underlined, italic text with A menu path File>Save right angle bracket Bold characters A dialog button Click OK A tab Click the Power tab N‘Rnnnn A number in verilog format, 4‘b0010, 2‘hF1 where N is the total number of digits, R is the radix and n is a digit. Text in angle brackets < > A key on the keyboard Press <Enter>, <F1> Courier New font: Plain Courier New Sample source code #define START Filenames autoexec.bat File paths c:\mcc18\h Keywords _asm, _endasm, static Command-line options -Opa+, -Opa- Bit values 0, 1 Constants 0xFF, ‘A’ Italic Courier New A variable argument file.o, where file can be any valid filename Square brackets [ ] Optional arguments mcc18 [options] file [options] Curly brackets and pipe Choice of mutually exclusive errorlevel {0|1} character: { | } arguments; an OR selection Ellipses... Replaces repeated text var_name [, var_name...] Represents code supplied by void main (void) user { ... } DS51901A-page 6  2010 Microchip Technology Inc.

Preface RECOMMENDED READING This user's guide describes how to use MCP2200 USB to RS-232 Demo Board. Another useful document is listed below. The following Microchip document is available and recommended as a supplemental reference resource. MCP2200 Data Sheet - “USB 2.0 to UART Protocol Converter with GPIO”, DS22228 This data sheet provides detailed information regarding the MCP2200 product. 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 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://support.microchip.com DOCUMENT REVISION HISTORY Revision A (April 2010) • Initial Release of this Document.  2010 Microchip Technology Inc. DS51901A-page 7

MCP2200 USB to RS-232 Demo Board User’s Guide NOTES: DS51901A-page 8  2010 Microchip Technology Inc.

MCP2200 USB TO RS-232 DEMO BOARD USER’S GUIDE Chapter 1. Product Overview 1.1 INTRODUCTION This chapter provides an overview of the MCP2200 USB to RS-232 Demo Board and covers the following topics: • What is the MCP2200 USB to RS-232 Demo Board? • MCP2200 USB to RS-232 Demo Board Kit Contents 1.2 WHAT IS THE MCP2200 USB TO RS-232 DEMO BOARD? The MCP2200EV-VCP is a USB to RS-232 development and evaluation board for the MCP2200 device. The board is powered from USB. Each I/O has an associated test point. In addition, two I/Os are connected to LEDs which are used to indicate USB to UART traffic when the associated pins are configured as TxLED and RxLED pins, respectively. The accompanying PC software is used to evaluate/demonstrate the MCP2200 as a Virtual Com Port (VCP) device. The software also allows I/O control and custom device configuration. A DLL is included to allow development of custom configuration and I/O control software. 1.3 MCP2200 USB TO RS-232 DEMO BOARD KIT CONTENTS This MCP2200 USB to RS-232 Demo Board Kit includes: • One MCP2200 USB to RS-232 Demo Board • Configuration and control PC software (available on the board web page) • PC software for configuration and I/O control (available on the board web page) • A simple DLL for developing custom software (available on the board web page)  2010 Microchip Technology Inc. DS51901A-page 9

MCP2200 USB to RS-232 Demo Board User’s Guide NOTES: DS51901A-page 10  2010 Microchip Technology Inc.

MCP2200 USB TO RS-232 DEMO BOARD USER’S GUIDE Chapter 2. MCP2200 USB to RS-232 Demo Board 2.1 INTRODUCTION The MCP2200 USB to RS-232 Demo Board is designed to demonstrate the device in a VCP environment, as well as provide a method for I/O configuration development. The MCP2200 USB to RS-232 Demo Board has the following features: • TxLED and RxLED LEDs for indicating USB to UART traffic • Test points for all I/O pins • Mini-USB connector • DB9 connector for connecting to another RS-232 device/application • RS-232 transceiver 2.2 SETUP 1. Download the support material (software and drivers) from the Microchip web site by finding the board page from www.microchip.com/analogtools or by searching for MCP2200EV-VCP from the search box on the web site. 2. Connect the board to a USB port on a Windows PC. 3. When the dialog appears to install the driver, navigate to mchp-HID+CDC.inf. 4. The board should now be set up for operation. 5. The optional PC software can be installed. Note1: If the software fails to start and the message box indicates a Code 10 error, a Microsoft update may be required. The update (KB943198) can be downloaded from http://support.microsoft.com/kb/943198. 2: The default VID is 0x04D8, which is licensed to Microchip. The default PID for the MCP2200 is 0x00DF. Changing the VID assumes you have a license from the USB consortium, and changing the PID assumes you have licensed one from Microchip. FIGURE 2-1: BOARD LAYOUT GP0 T e D-SUB 9 RS-232 st P LEDs MCP2200 USB o in ts GND MCP2200EV-VCP  2010 Microchip Technology Inc. DS51901A-page 11

MCP2200 USB to RS-232 Demo Board User’s Guide 2.3 OPERATION The board will operate as a USB to RS-232 converter. In addition, the accompanying software can be used to control the I/O and set custom configurations. 2.3.1 USB to RS-232 Operation The board can be connected to a USB host and to an RS-232 port that usually connects to a PC. If the host application software sends a “Set Line Coding” command (sets the UART baud rate), the MCP2200 will automatically change to the correct baud rate. FIGURE 2-2: D-SUB 9-PIN MALE CONNECTOR 1 2 3 4 5 RXD TXD GND 6 7 8 9 RTS CTS 2.3.2 Configuration Software The PC software allows the user to evaluate the functionality and set custom configurations. Figure2-3 shows the main screen. The software aids in the development of custom configurations. The following can be modified: Vendor ID (VID) and Product ID (PID): The default VID is 0x04D8, which is assigned to Microchip by the USB IF. The VID can be changed to another VID if authorized by the owner of the assignment. Contact the USB IF for more information. The default PID for the MCP2200 is 0x00DF and can be used ‘as-is’. Microchip's VID can be sublicensed by obtaining a new PID from Microchip. See the product page or board page for a link to the sublicensing agreement. Sublicensing is only required if Microchip’s VID is used. Changing the VID to another assigned and authorized VID does not require any sublicensing from Microchip. Baud Rate: A pull-down box allows selection of the most commonly used baud rates. I/O Config: It is a binary 8-bit value that configures the I/O port to input (logic ‘1’) or output (logic ‘0’). Output Default: It is the default value for the port pins configured as output. This is also an 8-bit binary value. Tx/Rx LEDs: Checking this box enables the LED functions on GP6 and GP7. The “LED Function” and “Blink Duration” must be configured. Hardware Flow Control: Enables the RTS and CTS pins for UART handshaking. USBCFG Pin: Enables the USBCFG pin on GP1. Suspend Pin: Enables the SSPND pin functionality on GP0. UART Polarity: Enables the inverse polarity for the UART pins. String Descriptors: Here you can enter custom Manufacturer and Product string descriptors. Update VID/PID Button: This button updates the software to use the VID and PID in the “New” boxes. For example, if the PID was changed to 0xFFFF, the software would keep using the original 0x00DF until the Update VID/PID button was pressed. After this, the software would switch to the 0xFFFF PID. DS51901A-page 12  2010 Microchip Technology Inc.

MCP2200 USB to RS-232 Demo Board Note: Care must be taken when changing the VID or PID because the software will not be able to communicate to the board if there is a mismatch. FIGURE 2-3: MAIN SOFTWARE SCREEN  2010 Microchip Technology Inc. DS51901A-page 13

MCP2200 USB to RS-232 Demo Board User’s Guide NOTES: DS51901A-page 14  2010 Microchip Technology Inc.

MCP2200 USB TO RS-232 DEMO BOARD USER’S GUIDE Appendix A. Schematic and Layouts A.1 INTRODUCTION This appendix contains the following schematic and layouts for the MCP2200 USB to RS232 Demo Board. Diagrams included: • Board – Schematic • Board – Top Copper, Pads and Silk • Board – Top Copper and Pads • Board – Top Silk and Pads • Board – Bottom Copper and Pads  2010 Microchip Technology Inc. DS51901A-page 15

MCP2200 USB to RS-232 Demo Board User’s Guide A.2 BOARD – SCHEMATIC M 162 14 7 13 8 6 VCCV+ T1OUT T2OUT R1IN R2IN V- C1+C1-C2+C2-T1IN T2IN R1OUT R2OUT GND 1345 11 10 12 9 15 DS51901A-page 16  2010 Microchip Technology Inc.

Schematic and Layouts A.3 BOARD – TOP COPPER, SILK AND PADS A.4 BOARD – TOP COPPER AND PADS  2010 Microchip Technology Inc. DS51901A-page 17

MCP2200 USB to RS-232 Demo Board User’s Guide A.5 BOARD – TOP SILK AND PADS A.6 BOARD – BOTTOM COPPER AND PADS DS51901A-page 18  2010 Microchip Technology Inc.

MCP2200 USB TO RS-232 DEMO BOARD USER’S GUIDE Appendix B. Bill of Materials (BOM) TABLE B-1: BILL OF MATERIALS Qty Reference Description Manufacturer Part Number 1 C1 CAP CER .47UF 16V X7R 0603 Murata Electronics GRM188R71C474KA88D North America 3 C2, C8, C9 CAP .1UF 16V CERAMIC X7R 0603 Panasonic – ECG ECJ-1VB1C104K 3 C4, C5, C7 CAP .33UF 10V CERAMIC X5R 0603 Panasonic – ECG ECJ-1VB1A334K 1 C6 CAP 47000PF 16V CERM X7R 060 Panasonic – ECG ECJ-1VB1C473K 2 D1, D2 LED RED CLEAR 0603 SMD Lite-On Inc LTST-C190CKT 1 J2 CONN DB9 MALE SOLDER CUP Norcomp Inc. 171-009-103L001 NICKEL 1 J4 CONN MINI USB RCPT RA TYPE B Tyco Electronics 1734035-2 SMD 1 PCB RoHS Compliant Bare PCB, MCP2200 104-00226 — USB to RS-232 Demo Board 3 R1, R2, R4 RES 470 OHM 1/10W 5% 0603 SMD Panasonic – ECG ERJ-3GEYJ471V 3 R1, R2, R4 RES 470 OHM 1/10W 5% 0603 SMD Panasonic – ECG ERJ-3GEYJ471V 1 R3 RES 10K OHM 1/10W 5% 0603 SMD Panasonic – ECG ERJ-3GEYJ103V 1 U1 MCP2200 USB to UART Serial Microchip Technology MCP2200-I/SS Converter Inc. 1 U2 IC LINE DRVR/RCVR RS-232 Texas Instruments SN75C3232EPWR 16-TSSOP 1 X1 RESONATOR 12.0MHZ CERAMIC Murata Electronics CSTCE12M0G15L99-R0 North America Note1: The components listed in this Bill of Materials are representative of the PCB assembly. The released BOM used in manufacturing uses all RoHS-compliant components.  2010 Microchip Technology Inc. DS51901A-page 19

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