MCP215X DS51516A ISO/TS-16949 MCP2150 DS21790 MCP2155 AN858 DS00858 AN888 - Datasheet Archive

 

Demo Board User's Guide 2004 Microchip Technology Inc. DS51516A Note the following details of the code protection feature on

 

MCP215X MCP215X Data Logger Demo Board User's Guide 2004 Microchip Technology Inc. DS51516A DS51516A 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in this publication regarding device applications and the like is provided only for your convenience and may be superseded by updates.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's products as critical components in life support systems is not authorized except with express written approval by Microchip. No licenses are conveyed, implicitly or otherwise, under any Microchip intellectual property rights. Trademarks The Microchip name and logo, the Microchip logo, Accuron, dsPIC, KEELOQ, microID, MPLAB, PIC, PICmicro, PICSTART, PRO MATE, PowerSmart, rfPIC, and SmartShunt are registered trademarks of Microchip Technology Incorporated in the U.S.A. and other countries. AmpLab, FilterLab, MXDEV, MXLAB, PICMASTER, SEEVAL, SmartSensor and The Embedded Control Solutions Company are registered trademarks of Microchip Technology Incorporated in the U.S.A. Analog-for-the-Digital Age, Application Maestro, dsPICDEM, dsPICDEM.net, dsPICworks, ECAN, ECONOMONITOR, FanSense, FlexROM, fuzzyLAB, In-Circuit Serial Programming, ICSP, ICEPIC, Migratable Memory, MPASM, MPLIB, MPLINK, MPSIM, PICkit, PICDEM, PICDEM.net, PICLAB, PICtail, PowerCal, PowerInfo, PowerMate, PowerTool, rfLAB, rfPICDEM, Select Mode, Smart Serial, SmartTel and Total Endurance 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. © 2004, Microchip Technology Incorporated, Printed in the U.S.A., All Rights Reserved. Printed on recycled paper. Microchip received ISO/TS-16949 ISO/TS-16949:2002 quality system certification for its worldwide headquarters, design and wafer fabrication facilities in Chandler and Tempe, Arizona and Mountain View, California in October 2003. The Company's quality system processes and procedures are for its PICmicro® 8-bit MCUs, 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. DS51516A-page ii 2004 Microchip Technology Inc. MCP215X MCP215X DATA LOGGER DEMO BOARD USER'S GUIDE Table of Contents Preface . 1 Chapter 1. Overview. 7 1.1 Introduction . 7 1.2 What is the MCP215X MCP215X Data Logger Demo Board? . 7 1.3 What the MCP215X MCP215X Data Logger Demo Board Kit Includes . 7 Chapter 2. Installation and Operation . 9 2.1 Introduction . 9 2.2 Features . 10 2.3 Getting Started . 11 2.4 Running the demos . 23 2.5 MCP215X MCP215X Data Logger Demo Board Description . 39 Appendix A. Schematic and Layouts . 45 A.1 Introduction . 45 A.2 Schematics and PCB Layout . 45 Appendix B. Bill-Of-Materials (BOM) . 49 Appendix C. MCP215X MCP215X Connection Sequence Overview . 51 Appendix D. MCP215X MCP215X 250-byte Data Transmit Table . 53 Worldwide Sales and Service . 54 2004 Microchip Technology Inc. DS51516A-page iii MCP215X MCP215X Data Logger Demo Board User's Guide NOTES: DS51516A-page iv 2004 Microchip Technology Inc. MCP215X MCP215X DATA LOGGER 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 MCP215X MCP215X Data Logger Demo Board User's Guide. Items discussed in this chapter include: · · · · About This Guide Recommended Reading The Microchip Web Site Customer Support 2004 Microchip Technology Inc. DS51516A-page 1 MCP215X MCP215X Data Logger Demo Board User's Guide ABOUT THIS GUIDE Document Layout This document describes how to use the MCP215X MCP215X Data Logger Demo Board User's Guide as a development tool to emulate and debug firmware on a target board. The manual layout is as follows: · Chapter 1: Product Overview ­ Important information about the MCP215X MCP215X Data Logger Demo Board User's Guide. · Chapter 2: MCP215X MCP215X Data Logger Demo Board User's Guide ­ Includes instructions on how to get started with this demo board, with a detailed description of each function. · Appendix A: Schematic and Layouts ­ Shows the schematic and layout diagrams for the MCP215X MCP215X Data Logger Demo Board. · Appendix B: Bill-of-Materials ­ Lists the parts used to build the MCP215X MCP215X Data Logger Demo Board. · Appendix C: Connection Sequence ­ Shows the connection sequence between a Primary device and the MCP215X MCP215X (Secondary device). This connection sequence is shown at an overview level and does not show exact operation. · Appendix D: 250 Byte Transmit Table ­ Shows the data that is transmitted by the program when in 250-Byte Transmit mode. DS51516A-page 2 2004 Microchip Technology Inc. Preface 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 `bnnnn Text in angle brackets < > Courier font: Plain Courier Italic Courier 0xnnnn Square brackets [ ] Curly brackets and pipe character: { | } Ellipses. 2004 Microchip Technology Inc. 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 binary number where n is a digit A key on the keyboard Click OK Click the Power tab `b00100, `b10 File>Save Press , Sample source code Filenames File paths Keywords Command-line options Bit values A variable argument #define START autoexec.bat c:\mcc18\h _asm, _endasm, static -Opa+, -Opa0, 1 file.o, where file can be any valid filename A hexadecimal number where 0xFFFF, 0x007A n is a hexadecimal digit Optional arguments mcc18 [options] file [options] Choice of mutually exclusive errorlevel {0|1} arguments; an OR selection Replaces repeated text var_name [, var_name.] Represents code supplied by void main (void) user { . } DS51516A-page 3 MCP215X MCP215X Data Logger Demo Board User's Guide RECOMMENDED READING This user's guide describes how to use MCP215X MCP215X Data Logger Demo Board User's Guide. Other useful documents are listed below. The following Microchip documents are available and recommended as supplemental reference resources. MCP2150 MCP2150 Data Sheet (DS21790 DS21790) This data sheet provides detailed information regarding the MCP2150 MCP2150 device. MCP2155 MCP2155 Data Sheet (DS21790 DS21790) This data sheet provides detailed information regarding the MCP2155 MCP2155 device. AN858 AN858, "Interfacing the MCP215x to Host Controller" (DS00858 DS00858) This application note discusses the interface between a Host Controller and the MCP215X MCP215X device. AN888 AN888, "Programming the Palm OS® for Embedded IR Applications" (DS00888 DS00888) This application note discusses the programming of a PalmTM PDA to interface to an IrDA® standard device using IrCOMM. AN926 AN926, "Programming the Pocket PC OS for Embedded IR Applications" (DS00926 DS00926) This application note discusses the programming of a Pocket PC PDA to interface to an IrDA standard device using IrCOMM. AN941 AN941, "Programming Windows® XP for Embedded IR Applications" (DS00941 DS00941) This application note discusses the programming of a Windows XP PC to interface to an IrDA standard device using IrCOMM. DS51516A-page 4 2004 Microchip Technology Inc. Preface 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 (FAQ), 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 Development Systems Information Line 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 In addition, there is a Development Systems Information Line which lists the latest versions of Microchip's development systems software products. This line also provides information on how customers can receive currently available upgrade kits. The Development Systems Information Line numbers are: 1-800-755-2345 ­ United States and most of Canada 1-480-792-7302 ­ Other International Locations 2004 Microchip Technology Inc. DS51516A-page 5 MCP215X MCP215X Data Logger Demo Board User's Guide NOTES: DS51516A-page 6 2004 Microchip Technology Inc. MCP215X MCP215X DATA LOGGER DEMO BOARD USER'S GUIDE Chapter 1. Overview 1.1 INTRODUCTION This chapter provides an overview of the MCP215X MCP215X Data Logger Demo Board and covers the following topics: · What is the MCP215X MCP215X Data Logger Demo Board? · What the MCP215X MCP215X Data Logger Demo Board kit includes 1.2 WHAT IS THE MCP215X MCP215X DATA LOGGER DEMO BOARD? The MCP215X MCP215X IrDA® Standard Protocol Stack Controller device allows the system designer to implement a low-cost, wireless IR port in any application providing support for the IrDA standard protocol stack and IrDA standard bit encoding/decoding. The MCP215X MCP215X Data Logger Demo Board is used to evaluate and demonstrate either the MCP2150 MCP2150 or MCP2155 MCP2155 device in a data-logging application. The board will communicate to a Primary device (such as a PDA (e.g., PalmTM or Pocket PC) or laptop computer). It is intended to serve as an example to assist system designers in developing an IrDA standard node using the MCP215X MCP215X device. Though the MCP215X MCP215X Data Logger Demo Board ships with a MCP2150 MCP2150 installed, this device may be interchanged with a MCP2155 MCP2155, allowing the MCP2155 MCP2155 to be evaluated. Note: 1.3 If the MCP2150 MCP2150 is replaced by the MCP2155 MCP2155, the MCP2155 MCP2155 device must have the firmware programmed into the device. Ensure that the demo program firmware was assembled for the MCP2155 MCP2155 (the demo program uses conditional assembly to use the same source file for the two devices). The "MCP215X MCP215X" variable needs to be equated to `55'. The MPASMTM assembler will display a message as to which device the file has assembled for. WHAT THE MCP215X MCP215X DATA LOGGER DEMO BOARD KIT INCLUDES This MCP215X MCP215X Data Logger Demo Board Kit includes: · The MCP215X MCP215X Data Logger Demo Board (with MCP2150 MCP2150 installed) · MCP215X MCP215X Data Logger Demo Board User's Guide (on CD-ROM) · CD-ROM also includes: - Palm PDA Primary device application program (and related Application Note 888) - Pocket PC Primary device application program (and related Application Note 926) - Windows XP Primary device application program (and related Application Note 941) - Demo board firmware that can be conditionally assembled for either the MCP2150 MCP2150 or the MCP2155 MCP2155. 2004 Microchip Technology Inc. DS51516A-page 7 MCP215X MCP215X Data Logger Demo Board User's Guide NOTES: DS51516A-page 8 2004 Microchip Technology Inc. MCP215X MCP215X DATA LOGGER DEMO BOARD USER'S GUIDE Chapter 2. Installation and Operation 2.1 INTRODUCTION This chapter discusses the installation and operation of the MCP215X MCP215X Data Logger Demo Board and a Primary device for data communication. This demonstrates an IrDA standard system and will assist the system designer on how to integrate an IR port into a system. The MCP215X MCP215X Data Logger Demo Board demonstrates the implementation of an embedded system with an IrDA standard interface. This system operates as an IrDA standard Secondary device using either the MCP2150 MCP2150 or the MCP2155 MCP2155 device. The IrDA standard system requires the Primary device to be running an appropriate application program. The MCP215X MCP215X Data Logger Demo Board interfaces to the Primary device application programs that are currently available from Microchip. The three application programs available for the following Primary device systems are: · Palm OS® · Microsoft® Pocket PC 2003 · Microsoft® Windows XP These application programs are supported by three application notes that discuss the programming of these particular operating systems. These application notes are: · AN888 AN888, "Programming the Palm OS® for Embedded IR Applications", DS00888 DS00888 · AN926 AN926, "Programming the Pocket PC for Embedded IR Applications", DS00926 DS00926 · AN941 AN941, "Programming Windows XP® for Embedded IR Applications", DS00941 DS00941 Note: References to a MCP215X MCP215X device in this document can refer to either the MCP2150 MCP2150 or the MCP2155 MCP2155 device. The host UART interface includes non-data flow control signals. These are the signals between a Host Controller and a MCP215X MCP215X device. A discussion of the host UART interface is given in the following application note: · AN858 AN858, "Interfacing the MCP215X MCP215X to a Host Controller", DS00858 DS00858 2004 Microchip Technology Inc. DS51516A-page 9 MCP215X MCP215X Data Logger Demo Board User's Guide 2.2 FEATURES The MCP215X MCP215X Data Logger Demo Board has the following features: · Communicates directly to Primary device (PDA or laptop computer) running the supplied Primary device application program or running a terminal emulation program · LCD display (2 row x 16 character) for display of system information · Data is transmitted in an easy-to-read format · Reprogrammable PIC16F877 PIC16F877 with MPLAB® In-Circuit Debugger (ICD) interface for user application development · 18-pin socket for the installation of either a MCP2150 MCP2150 (default device) or a MCP2155 MCP2155 (optional device) · Header that allows either several board signals to be monitored or allows the MCP215X MCP215X Data Logger Demo Board to be interfaced to the user's system · Eight LEDs that indicate MCP215X MCP215X status (CTS, RTS, DTR, DSR, CD and RI activity) · Eight LEDs that are connected to PORTD of the PIC16F877 PIC16F877 · Battery-operated by a 9V source (can use a 9V battery) · PICmicro® microcontroller (MCU) RESET switch · Two switches (SW2 and SW3) to control the PICmicro MCU program operation · Header and jumpers to allow the electrical removal of the optical transceiver and the installation of an alternate optical transceiver circuit (on a daughter board) · Variable resistor connected to PICmicro MCU A/D input · 8-pin DIP socket for the installation of an optional serial EEPROM (24LC256 24LC256) DS51516A-page 10 2004 Microchip Technology Inc. Installation and Operation 2.3 GETTING STARTED This section presents an overview of the following system blocks: · The MCP215X MCP215X Data Logger Demo Board Hardware · The MCP215X MCP215X Data Logger Demo Board Firmware · The Primary device Graphical User Interface (GUI) This should give you an understanding of what these components do in the complete IrDA standard system. 2.3.1 The MCP215X MCP215X Data Logger Demo Board Hardware Overview The major components for the MCP215X MCP215X Data Logger Demo Board are: 1. 2. 3. 4. 5. 6. 7. 8. MCP215X MCP215X device (U3) Optical transceiver (U5 - TFDS 4500) PICmicro MCU (U1 - PIC16F877 PIC16F877) LCD module Power supply User inputs to PICmicro MCU (SW2, SW3 and variable resistor (VR1) PICmicro MCU RESET PICmicro MCU crystal (Y2) The MCP215X MCP215X Data Logger Demo Board is fully assembled and tested for evaluation and demonstration of the MCP2150 MCP2150 or MCP2155 MCP2155 features. A block diagram of the demo board is shown in Figure 2-1. The board has been designed to allow the installation of an optional LCD contrast control (VR2) and serial EEPROM device. These optional components are removed from the MCP215X MCP215X Data Logger Demo Board block diagrams for readability. For more detailed circuit information, refer to Appendix A. "Schematic and Layouts" and Appendix B. "Bill-Of-Materials (BOM)". FIGURE 2-1: MCP215X MCP215X DATA LOGGER DEMO BOARD BLOCK DIAGRAM 9V Battery Power Power LED Power Supply Optional Not Installed LCD Module (2 Line x 16 Character) VR2 ICD 3 RD7 SW3 RD0 JP4 PICmicro® MCU (40-pin) CTS RTS CD DSR RI DTR JP7 SW2 Optional JP3 Not Installed 2004 Microchip Technology Inc. RX Encoder/Decoder SEE RESET VR1 TX J4 U1 U2 MCP215X MCP215X Header JP2 MCP215X MCP215X U3 Discrete Transceiver Header 1 J1 U5 JP1 JP5 JP6 J5 Header 2 DS51516A-page 11 MCP215X MCP215X Data Logger Demo Board User's Guide Figure 2-2 shows the layout of the MCP215X MCP215X Data Logger Demo Board with indication to points of interest. FIGURE 2-2: MCP215X MCP215X DATA LOGGER DEMO BOARD 9V Battery LCD Module (2 Line x 16 Character) Power Power LED Power Supply ICD 3 RD7 SW3 PICmicro MCU (40-pin) RD0 JP4 ® CTS RTS CD DSR RI DTR JP7 TX SW2 RX JP3 Encoder/Decoder RESET JP2 MCP215X MCP215X U1 VR1 J4 Switches for program selection and program state SW3 SW2 - - Waiting for program selection - D Vending machine D - Not used D D 250-byte SP data transfer Reset Switch - PICmicro MCU in normal operation D PICmicro MCU in RESET state DS51516A-page 12 U3 MCP215X MCP215X Header Discrete Transceiver Header 1 J1 U5 JP1 JP5 JP6 Connect/Isolate TFDS 4500 TXD and RXD pins J5 Header 2 Ground/Float PORTD LEDs Cathode TFDS 4500 TXD and RXD Connected to MCP215x LED Cathode Grounded TFDS 4500 TXD and RXD NOT Connected to MCP215x (Header 1 and 2 can be used) LED Cathode Floating (LEDs will not illuminate) 2004 Microchip Technology Inc. Installation and Operation Figure 2-3 shows the switches used to reset the MCP2150 MCP2150 and select one of two demo programs. Switch RESET resets the MCP2150 MCP2150 and switch S2 is used for program selection. FIGURE 2-3: MCP215X MCP215X DATA LOGGER DEMO BOARD 9V Battery LCD Module (2 Line x 16 Character) Power Power LED Power Supply ICD 3 RD7 PICmicro MCU (40-pin) SW3 RD0 JP4 ® CTS RTS CD DSR RI DTR JP7 TX SW2 RX JP3 Encoder / Decoder RESET JP2 MCP215X MCP215X U1 J4 VR1 U3 MCP215X MCP215X Header MCP215X MCP215X Enable MCP215X MCP215X Enabled (Normal Operation) Header 1 and Header 2 allow connection to a daughter board for implementation of other optical transceiver circuits MCP215X MCP215X in low-power state VDD J1 RXIR TXIR RXPD RXPDREF VSS VDD Discrete Transceiver Header 1 J1 U5 JP1 JP5 JP6 J5 Header 2 Power/Isolate Integrated Transceiver TFDS 4500 is Powered TFDS 4500 is NOT powered (Header 1 and 2 can be used) J5 VSS 2004 Microchip Technology Inc. DS51516A-page 13 MCP215X MCP215X Data Logger Demo Board User's Guide FIGURE 2-4: MCP215X MCP215X DATA LOGGER DEMO BOARD 9V Battery LCD Module (2 Line x 16 Character) Power Power LED Power Supply VR2 ICD 3 RD7 SW3 RD0 JP4 PICmicro® MCU (40-pin) CTS RTS CD DSR RI DTR JP7 TX SW2 RX JP3 Encoder/Decoder SEE RESET VR1 J4 U1 U2 MCP215X MCP215X Header MCP215X MCP215X Demo Board Signal Header Note: Actual silk-screen placement for the RTS and CTS labels should be switched JP2 MCP215X MCP215X U3 Discrete Transceiver Header 1 J1 U5 JP1 JP5 JP6 J5 Header 2 Optional MCP215X MCP215X BAUD1:BAUD0 pin pull-up/pull-down selection MCP215X MCP215X BAUD1:BAUD0 pins are pulled up MCP215X MCP215X BAUD1:BAUD0 pins are pulled down MCP215X MCP215X BAUD1:BAUD0 pins are controlled by PIC16F877 PIC16F877 I/O pins (R37 and R38 must be installed) DS51516A-page 14 2004 Microchip Technology Inc. Installation and Operation A description of the MCP215X MCP215X Data Logger Demo Board jumpers is given in Table 2-1. TABLE 2-1: JUMPER DESCRIPTIONS AND SETTINGS Jumper # Typical Settings (1) JP1 S To connect TXIR of MCP2150 MCP2150 to TXD of U5 (TFDS 4500) S = TXIR connected to TXD O = TXIR Not connected to TXD When Open, the signal can come from the daughter board connected to Header J1/J5. JP2 S To connect RXIR of MCP2150 MCP2150 to RXD of U5 (TFDS 4500) S = RXIR connected to RXD O = RXIR Not connected to RXD When Open, the signal can come from the daughter board connected to Header J1/J5. JP3 O To connect EN of MCP2150 MCP2150 to VSS S = MCP2150 MCP2150 in Low-power mode O = MCP2150 MCP2150 during normal operation JP4 S To connect cathode of LEDs (RD7:RD0) to VSS S = Cathode of LEDs to VSS O = Cathode of LEDs floating JP5 N/A JP6 N/A JP7 S Description Comment The PCB default state is shorted between jumper. No jumper is required. To control source of MCP2150 MCP2150 BAUD1 pin To control source of MCP2150 MCP2150 BAUD0 pin To connect VDD to integrated optical transceiver (U5) - TFDS 4500 Legend: S = Jumper is shorted (Closed) O = Jumper is Open Note 1: This is the jumper settings for using the integrated transceiver where the PIC16F877 PIC16F877 controls the baud rate and the PORTD LEDs are used. 2004 Microchip Technology Inc. DS51516A-page 15 MCP215X MCP215X Data Logger Demo Board User's Guide 2.3.2 The Embedded System Firmware Overview There are two PIC16F877 PIC16F877 firmware programs that can be demonstrated on the demo board. These are: · A vending machine that allows the uploading of data and responds to the commands of the Primary device · A 250-byte secondary device (S) to primary device (P) data transfer. This demonstrates the S P data throughput The 250-byte Secondary device (S) to Primary device (P) data transfer program has two options. These are: 1. Transfer data from the Host Controller (PIC16F877 PIC16F877) to the MCP2150 MCP2150 while the CTS signal is low. 2. Transfer 64 bytes of data from the Host Controller (PIC16F877 PIC16F877) to the MCP2150 MCP2150 after CTS signal falling edge. Option 2 will demonstrate higher S P data throughput. Typical Primary devices include Palm or Pocket PC PDAs and laptop PCs with an IrDA standard infrared port. The embedded system acts as an IrDA standard Secondary device. The PIC16F877 PIC16F877 firmware follows the flow control of the host UART interface. These are the signals between a Host Controller and a MCP2150 MCP2150 device. The details of the vending machine firmware operation are discussed in Section 2.3.2.1 "Vending Machine Program Description". The details of the "250 byte Secondary Device (S) to Primary Device (P) Data Transfer" firmware operation are discussed in Section 2.3.2.2 "250-byte Secondary Device (S) to Primary Device Data Transfer Program Description". Figure 2-5 shows the program flow that occurs to select between these two programs. The MCP215X MCP215X Data Logger Demo Board LCD module will display information on the state of the firmware execution. This information includes queries for user input. The selection of the program is dependant on the switches (SW2 and SW3) that are depressed (see Figure 2-4). TABLE 2-2: SW3 DEMO PROGRAM SELECTION SW2 Demo Program - - N/A (waiting for a switch to be depressed) - D Vending machine D - Not implemented D D Note: SP Transfer 250-bytes from demo board to Primary device (PDA) D = Depressed - = Not depressed The MCP2150/MCP2155 MCP2150/MCP2155 source code of the MCP215X MCP215X Data Logger Demo Board is available for download from the Microchip web site at www.microchip.com. This board also supports the MCP2155 MCP2155 device with only a change of the PIC16F877 PIC16F877 firmware. The MCP2140 MCP2140 can be supported with some hardware modifications and changes to the PIC16F877 PIC16F877 firmware. DS51516A-page 16 2004 Microchip Technology Inc. Installation and Operation FIGURE 2-5: PIC16F877 PIC16F877 FIRMWARE FLOW - MAIN RESET Display Firmware Revision Information Display Program Selection SW3 Switch SW2 or SW2+SW3 Depressed? SW2+SW3 SW2 Display Vending Machine Program Selected Vending Machine Routine 2004 Microchip Technology Inc. Display 250-byte S->P Transfer Program Selected 250-byte S->P Transfer Routine DS51516A-page 17 MCP215X MCP215X Data Logger Demo Board User's Guide 2.3.2.1 VENDING MACHINE PROGRAM DESCRIPTION This demo emulates a vending machine by counting the number of each item (soda and candy) dispensed. Once the MCP215X MCP215X Data Logger Demo Board has completed reset and the LCD module indicates which switches to depress to select a program, depress switch S2. The LCD module will indicate that the vending machine program is selected. The LCD module will then indicate the values of the soda and candy counters. Depressing the S2 switch will increment the soda counter, while depressing the S3 switch will increment the candy counter. Once either switch is depressed, the LCD module displays the new counter values. Each counter is an 8-bit value and can display a value from 0 to 255 (decimal). When the PIC16F877 PIC16F877 receives a data byte, the value is checked to determine the operation to perform. The vending machine program understands two commands: 1. Transmit the counter values. 2. Clear the counter values. Table 2-3 shows the two commands that the vending machine program accepts. All other data values that are received are ignored. Once the program has received the "Transmit the current counter values" command, the PIC16F877 PIC16F877 will transmit the data on two lines, in the following easy-to-read format: Soda = xxx Candy = xxx where xxx is the counter value TABLE 2-3: VENDING MACHINE COMMANDS Command Description ASCII Code Hex Code Transmit the current soda and candy counter values to the Primary device 5 0x35 Clear the current soda and candy counters 6 0x36 Note: All other received data values are ignored. The host UART interface is operating at 115,200 baud. The transfer will not commence until the PIC16F877 PIC16F877 has received a data byte from the Primary device. The PIC16F877 PIC16F877 follows the flow control of the MCP2150 MCP2150 to ensure that data is not lost. The MCP2150 MCP2150 handles all the IrCOMM protocol for the data packets that it receives from the PIC16F877 PIC16F877. Once the command has been processed, the PIC16F877 PIC16F877 waits for the next command to be received. The program flow for the vending machine demo is shown in Figure 2-6. DS51516A-page 18 2004 Microchip Technology Inc. Installation and Operation FIGURE 2-6: PIC16F877 PIC16F877 FIRMWARE FLOW - VENDING MACHINE Vending Machine Routine Display Soda and Candy Information Switch SW2 or SW3 Yes Depressed? No Data Byte Received from Primary Device? Which Switch is Depressed? Yes SW3 SW2 No Increment Soda Counter Data Byte = 0x35? Yes Transmit Data to Primary Device No Data Byte = 0x36? No 2004 Microchip Technology Inc. Increment Candy Counter Yes Clear Soda and Candy Counter Values DS51516A-page 19 MCP215X MCP215X Data Logger Demo Board User's Guide 2.3.2.2 250-BYTE 250-BYTE SECONDARY DEVICE (S) TO PRIMARY DEVICE DATA TRANSFER PROGRAM DESCRIPTION After the MCP215X MCP215X Data Logger Demo Board has completed reset and the LCD module indicates which switches to depress to select a program, depress switches S2 and S3 simultaneously. The LCD module will indicate that the 250-byte SP program is selected. You then need to specify the data transfer method. The host UART interface is operating at 115,200 baud. There are two methods by which to accomplish this. In the first method, the PIC16F877 PIC16F877 will transfer data to the MCP2150 MCP2150 while the CTS signal is low. This is the easiest method to implement. To select this method, depress switch S2. After depressing S2, the LCD will indicate the mode of data transfer and that it is waiting. The transfer will not commence until the PIC16F877 PIC16F877 has received a data byte from the Primary device. In the second method, the PIC16F877 PIC16F877 will transfer 64 bytes of the data table to the MCP2150 MCP2150 after the falling edge of the CTS signal. This method gives the best data throughput. To select this method, depress switch S3. After depressing S3, the LCD will indicate the mode of data transfer and that it is waiting. The transfer will not commence until the PIC16F877 PIC16F877 has received a data byte from the Primary device. The PIC16F877 PIC16F877 follows the flow control of the MCP2150 MCP2150 to ensure that data is not lost. The MCP2150 MCP2150 handles all the IrCOMM protocol for the data packets that it receives from the PIC16F877 PIC16F877. After the table has completed transmission, the PIC16F877 PIC16F877 returns to the routine that asks for the data transfer method. The program flow for the "250 Byte Secondary Device (S) to Primary Device (P) Data Transfer" demo is shown in Figure 2-7. The 250-byte data table transmitted from the MCP215X MCP215X Data Logger Demo Board to the Primary device is shown in Appendix D. "MCP215X MCP215X 250-Byte Data Transmit Table". These values will be displayed in the Primary device's terminal emulation program window. Note: The byte sent by the Primary device is expected since most PDAs will not establish a link until data is sent. Depending on the PDA application program used (PalmTM or Pocket PC), the operation of the Connect button varies. The PIC16F877 PIC16F877 receives a single byte from the IrDA standard Primary device and then a 250-byte table is transmitted back to the Primary device. If you desire more than 250 bytes to be transferred, the source code is written to allow this 250-byte table to be transmitted multiple times. At the beginning of the SP Data Transfer routine (routine has label S2Pxfer), there is a #define for the TableCNTR. This is set to `1', but can be changed to allow the data table to be transmitted "TableCNTR" time. TableCNTR should not be greater than D'255' (8-bit value) DS51516A-page 20 2004 Microchip Technology Inc. Installation and Operation FIGURE 2-7: PIC16F877 PIC16F877 FIRMWARE FLOW - 250-BYTE 250-BYTE S->P TRANSFER 250-Byte S->P Transfer Routine Display S->P Transfer Method Selection Switch SW2 or SW3 SW2 Depressed? SW3 Display Xfer 64B/Window Waiting Message Data Byte Yes Received from Primary Device? No Data Byte Received from Primary Device? Yes No Transfer Table Using 64B/Window Method 2004 Microchip Technology Inc. Display Xfer if CTS Low Waiting Message Transfer Table Using CTS Low Method DS51516A-page 21 MCP215X MCP215X Data Logger Demo Board User's Guide 2.3.3 The Primary Device Graphical User Interface (GUI) Overview Three Primary device platforms have had application programs developed to interface to the MCP215X MCP215X Data Logger Demo Board. These platforms are: · Palm PDAs · Pocket PC PDAs · Window XP PCs The GUI for these three platforms have been designed to look similar. Figure 2-8 shows the GUIs for the three platforms. A more detailed description of each GUI is given in the section that describes how to use that Primary device with the MCP215X MCP215X Data Logger Demo Board (Section 2.4.1 "Running the MCP215X MCP215X Data Logger Demo Board with a Palm PDA", Section 2.4.2 "Running the MCP215X MCP215X Data Logger Demo Board with a Pocket PC PDA" or Section 2.4.3 "Running the MCP215X MCP215X Data Logger Demo Board with a Window XP PC with an IrDA Standard Port"). FIGURE 2-8: PRIMARY DEVICE GUIS PalmTM PDA DS51516A-page 22 Pocket PC PDA Windows® XP PC 2004 Microchip Technology Inc. Installation and Operation 2.4 RUNNING THE DEMOS This demo board can interface to any Primary device that implements the IrCOMM 9-wire "cooked" protocol layer. Some typical Primary devices include: 1. Palm PDA 2. Pocket PC PDA 3. Laptop PC with IrDA Standard Port Three application programs have been developed to interface these devices to the MCP215X MCP215X Data Logger Demo Board. One for each Primary device platform shown. These application programs also have an associated application note to discuss the implementation of the application program. These programs are discussed in the following application notes: · For Palm OS - Application Note 888, "Programming the Palm OS® for Embedded IR Applications", DS00888 DS00888 · For Pocket PC OS - Application Note 926, "Programming the Pocket PC OS for Embedded IR Applications", DS00926 DS00926 · For Windows XP - Application Note 941, "Programming Windows® XP for Embedded IR Applications", DS00941 DS00941 Other third-party programs may be used to communicate with the MCP215X MCP215X Data Logger Demo Board, though these methods will not be discussed in this document. If additional information is desired, refer to the MCP2140 MCP2140 IrDA® Standard Wireless Temperature Sensor Demo Board User's Guide (DS51487 DS51487). 2004 Microchip Technology Inc. DS51516A-page 23 MCP215X MCP215X Data Logger Demo Board User's Guide 2.4.1 Running the MCP215X MCP215X Data Logger Demo Board with a Palm PDA An overview of the Application Note 941 GUI is given (Section 2.4.1.1 "The Palm PDA GUI"), followed by the operation of the demos (Section 2.4.3.2 "Running The Demos Using The Application Note 941 Program"). 2.4.1.1 THE PALM PDA GUI The GUI consists of a number of user-interface elements, including command buttons, text labels and a text-entry field. Refer to Figure 2-9. FIGURE 2-9: PALM PDA MAIN FORM 1 2 3 4 5 6 7 Send File 9 8 1. The Connect button attempts to establish a connection to the MCP215X MCP215X Data Logger Demo Board, with the Palm PDA acting as the Primary device. The label to the left of the button provides an indication of the connection. 2. The Read Data button sends a query to the demo board, requesting the soda and candy counter values. Received data is parsed and displayed. 3. The Clear Data button sends a command to the demo board, instructing it to reset the application level counters. The command to "Read Data" is then sent to ensure that the registers were cleared. 4. The ASCII/HEX button toggles the application between ASCII and HEX modes. This value is used when preparing and transmitting data to the IR demo board. This is useful when there is a need to send a non-printable value, such as low-order ASCII. For example, to send the value 0x03, use the keyboard or Graffiti® to enter "03" (without the quotes). This will be converted to 0x03 and transmitted. 5. The Send button sends the data shown on the "TX Data" line. If HEX mode is selected, minimal error-checking is performed. 6. The Show button causes a message box to be displayed that contains the received buffer information. 7. The Reset button clears the Palm PDA application's receive data buffer. 8. The Send File button is used to send a file. 9. The 123 and ABC button opens a keyboard for data entry. The 123 button will open the numeric keyboard, while the ABC button will open the alpha keyboard. DS51516A-page 24 2004 Microchip Technology Inc. Installation and Operation 2.4.1.2 RUNNING THE DEMO USING THE APPLICATION NOTE AN888 AN888 PROGRAM After saving the AN888 AN888 application program to your PC's hard drive, the PC can communicate with the MCP215X MCP215X Data Logger Demo Board. Section 2.4.1.2.1 "Steps to Operate the Vending Machine Demo" discusses how to operate the vending machine program, while Section 2.4.1.2.2 "Steps to Operate the 250-byte S -> P Data Transfer Demo" discusses how to operate the 250-byte Secondary device (S) to Primary device (P) data transfer program. 2.4.1.2.1 Steps to Operate the Vending Machine Demo The vending machine demo is shown by following the steps in Table 2-4. TABLE 2-4: VENDING MACHINE DEMO - PALMTM PDA Step Action Result 1 - 2 3 4 5 Place both devices on a flat surface about 25 cm (10") apart, and with the IR ports facing each other On the MCP215X MCP215X Data Logger Demo Board: Ensure that jumpers JP1 and JP2 are shorted (closed position). On the MCP215X MCP215X Data Logger Demo Board: Ensure that jumper JP7 is shorted (closed position). On the MCP215X MCP215X Data Logger Demo Board: Insert the 9V battery into the battery holder (BT1) or plug a 9V AC to DC power supply (such as those supplied with some Microchip development tools) into the 9V DC connection plug (J2). You may need to depress the RESET switch if the LCD does not display the Microchip program revision information and then the directions for demo program selection. On the MCP215X MCP215X Data Logger Demo Board: Depress Switch 2 (SW2). 6 On the PDA: Tap on the MCP215XDemo Icon. 7 On the PDA: Tap on the Connect button. 8 On the MCP215X MCP215X Data Logger Demo Board: Switch 2 (SW2) increments the soda counter, and Switch 3 (SW3) increments the candy counter. The value of the candy and soda counters will be displayed on the LCD. Depress Switch 2 until the soda counter displays 7 and depress Switch 3 until the candy counter displays 12. For demonstration purposes, it is nice when the two counter values are different. 2004 Microchip Technology Inc. - - On the MCP215X MCP215X Data Logger Demo Board: The green power LED (D10) will turn on, the DTR LED will be on, while all the other UART flow control signals (CTS, RTS, CD, RI and DSR) will be off. Also, the RD7 and RD6 LEDs will be on. On the MCP215X MCP215X Data Logger Demo Board: This causes the vending machine program to be executed. On the PDA: The screen will display the MCP215XDemo program window. On the PDA: The Connect button will change to the Disconnect button. - DS51516A-page 25 MCP215X MCP215X Data Logger Demo Board User's Guide TABLE 2-4: VENDING MACHINE DEMO - PALMTM (CONTINUED)PDA Step Action Result 9 On the PDA: Tap on the Read Data button. 10 On the MCP215X MCP215X Data Logger Demo Board: Update the soda and candy counters by depressing Switch 2 until the soda counter displays 14 and depressing Switch 3 until the candy counter displays 16. On the PDA: Tap on the Read Data button. On the MCP215X MCP215X Data Logger Demo Board: The CD LED will turn on. The CTS LED will strobe rapidly and then return to the normal rate. On the PDA: The Program window will update the display for "Number of Sodas Sold =" and "Number of Candies Sold =" to the value displayed on the demo board LCD. - 11 12 On the PDA: Tap on the Clear Data button. 13 On the PDA: In the Query box, tap the Yes button. 14 15 Step 10 through Step 13 may be repeated. On the PDA: Tap on the Disconnect button. DS51516A-page 26 On the MCP215X MCP215X Data Logger Demo Board: The CTS LED will strobe rapidly and then return to the normal rate. On the PDA: The program window will update the display for "Number of Sodas Sold =" and "Number of Candies Sold =" to the new value displayed on the demo board LCD. On the PDA: The program window will open a query window that asks "Clear Counters, Are You Sure". On the MCP215X MCP215X Data Logger Demo Board: The LCD module will update the candy and soda counter values to 0. On the PDA: The program sends the command value to clear the counters. About a second later, the PDA sends a second command to read the counter values (which are now 0). The window will update the display for "Number of Sodas Sold =" and "Number of Candies Sold =" to the new value displayed on the demo board LCD. - On the PDA: This will disconnect (close) the IR link. The Connect button will change to the Disconnect button. On the MCP215X MCP215X Data Logger Demo Board: The CD and the CTS LEDs will turn off. 2004 Microchip Technology Inc. Installation and Operation 2.4.1.2.2 Steps to Operate the 250-byte S -> P Data Transfer Demo The 250-byte S -> P data transfer demo is shown by following the steps in Table 2-5. TABLE 2-5: 250-BYTE 250-BYTE S -> P DATA TRANSFER DEMO - PALMTM PDA Step Action Result 1 - 2 3 4 5 Place both devices on a flat surface about 25 cm (10") apart, with the IR ports facing each other. On the MCP215X MCP215X Data Logger Demo Board: Ensure that jumpers JP1 and JP2 are shorted (closed position). On the MCP215X MCP215X Data Logger Demo Board: Ensure that jumper JP7 is shorted (closed position). On the MCP215X MCP215X Data Logger Demo Board: Insert the 9V battery into the battery holder (BT1) or plug a 9V AC-to-DC power supply (such as those supplied with some Microchip development tools) into the 9V DC connection plug (J2). You may need to depress the RESET switch if the LCD does not display the Microchip program revision information, followed by the directions for demo program selection. On the MCP215X MCP215X Data Logger Demo Board: Depress Switch 2 and Switch 3 (SW2 + SW3) simultaneously. 6 On the PDA: Tap on the MCP215XDemo icon. 7 On the PDA: Tap on the Connect button. 8 On the PDA: Tap on the 123 button. On the PDA: Tap on the number (5) button. 9 10 On the PDA: Tap on the Done button. 2004 Microchip Technology Inc. - - On the MCP215X MCP215X Data Logger Demo Board: The green power LED (D10) will turn on, the DTR LED will be on, while all the other UART flow control signals (CTS, RTS, CD, RI and DSR) will be off. The RD7 and RD6 LEDs will also be on. On the MCP215X MCP215X Data Logger Demo Board: This causes the 250-byte S->P data transfer program to be executed. The LCD will display that this program was selected and then update the display to show the two options for transmitting data from the PIC16F877 PIC16F877 to the MCP2150 MCP2150: 1. CTS (transmit data bytes while CTS is low) 2. 64 bytes (transmit 64 data bytes when CTS goes low) On the PDA: The screen will display the MCP215XDemo program window. On the PDA: The Connect button will change to the Disconnect button. On the PDA: This opens the numeric keyboard. On the PDA: In the upper-left corner of the window, the typed number will appear. On the PDA: This closes the numeric keyboard window. The number that was typed is shown on the "TX Data (ASCII) =" line. DS51516A-page 27 MCP215X MCP215X Data Logger Demo Board User's Guide TABLE 2-5: Step Action 11 12 13 14 15 16 17 18 250-BYTE 250-BYTE S -> P DATA TRANSFER DEMO - PALMTM (CONTINUED)PDA Result On the MCP215X MCP215X Data Logger Demo Board: On the MCP215X MCP215X Data Logger Demo Board: Depress Switch 2 or Switch 3 to select which flavor of If SW2 is depressed, the Host Controller will only the transmit program is executed. transmit data to the MCP2150 MCP2150 while the CTS signal is low. The LCD will indicate that the MCP215X MCP215X Data Logger Demo Board is waiting to receive a data byte from the Primary device. If SW3 is depressed, the Host Controller will transmit 64 bytes of data to the MCP2150 MCP2150 when the CTS signal goes low. The LCD will indicate that the MCP215X MCP215X Data Logger Demo Board is waiting to receive a data byte from the Primary device. On the PDA: On the MCP215X MCP215X Data Logger Demo Board: Tap on the Send Byte button. The CD LED will turn on (the IR link is now open) and the CTS LED will strobe rapidly before returning to the normal rate. The second line of the LCD will display the text "Transmitting" and, once the data table has been sent, the text will change to "TX Complete". After approx. 1 second, the PIC16F877 PIC16F877 will return to the routine used to select how the 250-byte table is transmitted (see Step 11). The LCD will display the options. On the PDA: Trace will show "250 bytes". On the PDA: On the PDA: Tap on the Show button. This opens the trace buffer window. The received data table should be in the window. On the PDA: On the PDA: Tap on the OK button. This closes the trace buffer window. On the PDA: On the PDA: Tap on the Reset button. This will open a query window that asks "Reset Trace Buffer, Are You Sure". On the PDA: On the PDA: In the Query window, tap on the Yes button. This clears the contents of the trace buffer. Trace shows "0 Bytes". Step 8 through Step 16 may be repeated. - On the PDA: On the PDA: Tap on the Disconnect button. This will disconnect (close) the IR link. When the IR link is disconnected, the PC icon will change to indicate that the IR link is disconnected (has a red X). On the MCP215X MCP215X Data Logger Demo Board: The CD and the CTS LEDs will turn off. DS51516A-page 28 2004 Microchip Technology Inc. Installation and Operation 2.4.2 Running the MCP215X MCP215X Data Logger Demo Board with a Pocket PC PDA An overview of the Application Note 941 GUI is given (Section 2.4.2.1 "The Pocket PC PDA GUI") and then the operation of the demos is given (2.4.2.2 "Running The Demo Using The Application Note 926 Program"). 2.4.2.1 THE POCKET PC PDA GUI The GUI consists of a number of user interface elements including command buttons, text labels and a text-entry field. (Figure 2-10) FIGURE 2-10: POCKET PC PDA WINDOW 1 2 3 4 7 5 8 6 1. The Connect button attempts to establish a connection to the IR demo board. The PPC device is acting as the Primary device and the demo board as the Secondary device. 2. The Read Data button causes a query to be sent to the demo board, requesting the number of sodas and candies information. Data received from the demo board is parsed and displayed in text labels. 3. The Clear Data button sends a command to the demo board instructing it to reset the application level counters. 4. The Send Byte button transfers the byte entered into the TX Data (ASCII) text box. Any byte may be entered and transferred to the embedded system. If the byte corresponds to one of the commands to read data, clear data or transfer a buffer, the board will respond depending on its mode (vending machine or 250-byte transfer). 5. The Get File button initiates the 250-byte data transfer from the embedded system by sending the embedded system the command byte for the transfer. 6. The Send File button allows the user to select a file on the PPC and transfer it to the embedded system. 7. The Trace button causes the information in the trace buffer to be displayed. Within this window is the capability to clear the trace buffer. 8. The Keyboard button opens a keyboard for data entry. The 123 button will open the numeric keyboard, while the ABC button will open the alpha keyboard. 2004 Microchip Technology Inc. DS51516A-page 29 MCP215X MCP215X Data Logger Demo Board User's Guide 2.4.2.2 RUNNING THE DEMO USING THE APPLICATION NOTE 926 PROGRAM After saving the AN941 AN941 application program to your PC's hard drive, the PC can communicate with the MCP215X MCP215X Data Logger Demo Board. Section 2.4.2.2.1 "Steps to Operate the Vending Machine Demo" discusses how to operate the vending machine program, while 2.4.2.2.2 "Steps to Operate the 250-byte S -> P Data Transfer Demo" discusses how to operate the 250-byte Secondary device (S) to Primary device (P) data transfer program. 2.4.2.2.1 Steps to Operate the Vending Machine Demo The vending machine demo is shown by following the steps in Table 2-6. TABLE 2-6: VENDING MACHINE DEMO - POCKET PC Step Action Result 1 - 2 3 4 5 Place both devices on a flat surface about 25 cm (10") apart and with the IR ports facing each other. On the MCP215X MCP215X Data Logger Demo Board: Ensure that jumpers JP1 and JP2 are shorted (closed position). On the MCP215X MCP215X Data Logger Demo Board: Ensure that jumper JP7 is shorted (closed position). On the MCP215X MCP215X Data Logger Demo Board: Insert the 9V battery into the battery holder (BT1) or plug a 9V AC-to-DC power supply (such as those supplied with some Microchip development tools) into the 9V DC Connection Plug (J2). You may need to depress the RESET switch if the LCD does not display the Microchip program revision information and then the directions for demo program selection. On the MCP215X MCP215X Data Logger Demo Board: Depress Switch 2 (SW2). 6 On the PDA: Start the IrDA® Demo program. 7 On the PDA: Tap on the Connect button. DS51516A-page 30 - - On the MCP215X MCP215X Data Logger Demo Board: The green power LED (D10) will turn on, the DTR LED will be on, while all the other UART Flow Control signals (CTS, RTS, CD, RI and DSR) will be off. Also the RD7 and RD6 LEDs will be on. On the MCP215X MCP215X Data Logger Demo Board: This causes the vending machine program to be executed. On the PDA: The screen will display the IrDA Demo program window, with the "Device ID" line displaying "Generic IrDA", while the "IR Link" line displays "Discovery Mode". On the PDA: Once the connection is made, the program window will be updated so that the Connect button is called the Disconnect button and the "IR Link" line displays "Normal Response Mode". On the MCP215X MCP215X Data Logger Demo Board: The CD LED will turn on and the CTS LED will strobe rapidly and then return to the normal rate. This indicates that an IR link is established between the PDA and the demo board. 2004 Microchip Technology Inc. Installation and Operation TABLE 2-6: VENDING MACHINE DEMO - POCKET PC (CONTINUED) Step Action 8 9 10 11 12 13 14 15 Result On the MCP215X MCP215X Data Logger Demo Board: - Switch 2 (SW2) increments the soda counter, and Switch 3 (SW3) increments the candy counter. The value of the candy and soda counters will be displayed on the LCD. Depress Switch 2 until the soda counter displays 7 and depress Switch 3 until the candy counter displays 12. For demonstration purposes, it is nice when the two counter values are different. On the PDA: On the MCP215X MCP215X Data Logger Demo Board: Tap on the Read Data button. The CTS LED will strobe rapidly and then return to the normal rate. On the PDA: The program window will update the display for "Number of Sodas Sold =" and "Number of Candies Sold =" to the value displayed on the demo board LCD. On the MCP215X MCP215X Data Logger Demo Board: - Update the soda and candy counters by depressing Switch 2 until the soda counter displays 14 and depressing Switch 3 until the candy counter displays 16. On the PDA: On the MCP215X MCP215X Data Logger Demo Board: Tap on the Read Data button. The CTS LED will strobe rapidly and then return to the normal rate. On the PDA: The program window will update the display for "Number of Sodas Sold =" and "Number of Candies Sold =" to the new value displayed on the demo board LCD. On the PDA: On the MCP215X MCP215X Data Logger Demo Board: Tap on the Clear Data button. The LCD module will update the candy and soda counter values to 0. On the PDA: On the MCP215X MCP215X Data Logger Demo Board: Tap on the Read Data button. The CTS LED will strobe rapidly and then return to the normal rate. On the PDA: The Program window will update the display for "Number of Sodas Sold =" and "Number of Candies Sold =" to the value displayed on the demo board LCD. Step 10 through Step 13 may be repeated. - On the PDA: On the PDA: Tap on the Disconnect button. This will disconnect (close) the IR link. When the IR link is closed, the program window will be updated so that the Disconnect button changes back to the Connect button. The "IR Link" line will display "Normal Disconnect Mode" and then, after a couple of seconds, will display "Discovery Mode". On the MCP215X MCP215X Data Logger Demo Board: The CD and the CTS LEDs will turn off. 2004 Microchip Technology Inc. DS51516A-page 31 MCP215X MCP215X Data Logger Demo Board User's Guide 2.4.2.2.2 Steps to Operate the 250-byte S -> P Data Transfer Demo The 250-byte S -> P data transfer demo is shown by following the steps in Table 2-7. TABLE 2-7: Step 1 2 3 4 5 250-BYTE 250-BYTE S -> P DATA TRANSFER DEMO - POCKET PC Action Place both devices on a flat surface about 25 cm (10") apart and with the IR ports facing each other. On the MCP215X MCP215X Data Logger Demo Board: Ensure that jumpers JP1 and JP2 are shorted (closed position). On the MCP215X MCP215X Data Logger Demo Board: Ensure that jumper JP7 is shorted (closed position). On the MCP215X MCP215X Data Logger Demo Board: Insert the 9V battery into the battery holder (BT1) or plug a 9V AC-to-DC power supply (such as supplied with some Microchip development tools) into the 9V DC connection plug (J2). You may need to depress the RESET switch if the LCD does not display the Microchip program revision information and then the directions for demo program selection. On the MCP215X MCP215X Data Logger Demo Board: Depress Switch 2 and Switch 3 (SW2 + SW3) simultaneously. 6 On the PDA: Start the IrDA® Demo program. 7 On the PDA: Tap on the Connect button. DS51516A-page 32 Result - - - On the MCP215X MCP215X Data Logger Demo Board: The green power LED (D10) will turn on, the DTR LED will be on, while all the other UART flow control signals (CTS, RTS, CD, RI and DSR) will be off. Also the RD7 and RD6 LEDs will be on. On the MCP215X MCP215X Data Logger Demo Board: This causes the 250-byte S->P data transfer program to be executed. The LCD will display that this program was selected and will then update the display to show the two options for transmitting data from the PIC16F877 PIC16F877 to the MCP2150 MCP2150: 1. CTS (transmit data bytes while CTS is low) 2. 64 bytes (transmit 64 data bytes when CTS goes low) On the PDA: The screen will display the "IrDA Demo" program window, with the "Device ID" line displaying "Generic IrDA" and the "IR Link" line displaying "Discovery Mode". On the PDA: Once the connection is made, the program will be updated so that the Connect button is called the Disconnect button and the "IR Link" line displays "Normal Response Mode". On the MCP215X MCP215X Data Logger Demo Board: The CD LED will turn on and the CTS LED will strobe rapidly and then return to the normal rate. This indicates that an IR link is established between the PDA and the demo board. 2004 Microchip Technology Inc. Installation and Operation TABLE 2-7: 250-BYTE 250-BYTE S -> P DATA TRANSFER DEMO - POCKET PC (CONTINUED) Step 8 9 10 11 12 13 14 Action Result On the MCP215X MCP215X Data Logger Demo Board: On the MCP215X MCP215X Data Logger Demo Board: Depress Switch 2 or Switch 3 to select which flavor of If Switch SW2 is depressed, then the Host Controller the transmit program is executed. will only transmit data to the MCP2150 MCP2150 while the CTS signal is low. The LCD will indicate that the MCP215X MCP215X Data Logger Demo Board is waiting to receive a data byte from the Primary device. If Switch SW3 is depressed, the Host Controller will transmit 64 bytes of data to the MCP2150 MCP2150 when the CTS signal goes low. The LCD will indicate that the MCP215X MCP215X Data Logger Demo Board is waiting to receive a data byte from the Primary device. On the PDA: On the MCP215X MCP215X Data Logger Demo Board: Tap on the Get File button. The CTS LED will strobe rapidly and then return to the normal rate. The second line of the LCD will display the text "Transmitting" and, once the data table has been sent, the text will change to "TX Complete". After approx. 1 second, the PIC16F877 PIC16F877 will return to the routine used to select how the 250-byte table is transmitted (see Step 8). The LCD will display the options. On the PDA: The data is received in the program's trace buffer. On the PDA: On the PDA: Tap on the Trace button. This opens the trace buffer window. You may scroll up and down in this window to view the received data. On the PDA: On the PDA: Tap on the Clear button. This clears the data that is in the trace buffer window. On the PDA: On the PDA: Tap on the Close button. This closes the trace buffer window. Step 8 through Step 12 may be repeated. - On the PDA: On the PDA: Tap on the Disconnect button. This will disconnect (close) the IR link. When the IR Link is closed, the program window will be updated so that the Disconnect button changes back to the Connect button. The "IR Link" line will display "Normal Disconnect Mode" and then, after a couple of seconds, will display "Discovery Mode". On the MCP215X MCP215X Data Logger Demo Board: The CD and the CTS LEDs will turn off. 2004 Microchip Technology Inc. DS51516A-page 33 MCP215X MCP215X Data Logger Demo Board User's Guide 2.4.3 Running the MCP215X MCP215X Data Logger Demo Board with a Window XP PC with an IrDA Standard Port An overview of the Application Note 941 GUI is given (Section 2.4.3.1 "The Windows XP PC GUI"), followed by the operation of the demos (Section 2.4.3.2 "Running The Demos Using The Application Note 941 Program"). 2.4.3.1 THE WINDOWS XP PC GUI The GUI consists of a number of user interface elements including command buttons, text labels and a text-entry field. Figure 2-11 identifies the buttons while the text below describes the operation of the button. FIGURE 2-11: WINDOWS XP PC WINDOW 1 2 3 4 5 6 7 1. The Connect button attempts to establish a connection to the IR demo board. The PC is acting as the Primary device and the demo board acts as the Secondary device. 2. The Read Data button causes a query to be sent to the demo board requesting a tally of the number of sodas and candies dispensed. Data received from the demo board is parsed and displayed in text labels. 3. The Clear Data button sends a command to the demo board instructing it to reset the application level counters. 4. The Send Byte button transfers the byte entered into the TX Data (ASCII) text box. Any byte may be entered and transferred to the embedded system. If the byte corresponds to one of the commands to read data, clear data or transfer a buffer, the board will respond depending on its mode (vending machine or 250-byte transfer). 5. The Get File button initiates the 240-byte data transfer from the embedded system by sending the embedded system the command byte for the transfer. 6. The Send File button allows the user to select a file on the PC and transfer it to the embedded system. 7. The Close button closes the application. DS51516A-page 34 2004 Microchip Technology Inc. Installation and Operation 2.4.3.2 RUNNING THE DEMOS USING THE APPLICATION NOTE 941 PROGRAM After saving the AN941 AN941 application program to your PC's hard drive, the program needs to be launched. This PC program communicates with the MCP215X MCP215X Data Logger Demo Board. Section 2.4.3.2.1 "Steps to Operate the Vending Machine Demo - Windows XP" discusses how to operate the vending machine demo, while Section 2.4.3.2.2 "Steps to Operate the 250-byte S -> P Data Transfer Demo - Windows XP" discusses how to operate the 250-byte Secondary device (S) to Primary device (P) data transfer demo. 2.4.3.2.1 Steps to Operate the Vending Machine Demo - Windows XP The vending machine demo is shown by following the steps in Table 2-8. TABLE 2-8: VENDING MACHINE DEMO - WINDOWS® XP Step Action Result 1 - 2 3 4 5 6 7 8 Place both devices on a flat surface about 25 cm (10") apart, with the IR ports facing each other. On the MCP215X MCP215X Data Logger Demo Board: Ensure that jumpers JP1 and JP2 are shorted (closed position). On the MCP215X MCP215X Data Logger Demo Board: Ensure that jumper JP7 is shorted (closed position). On the PC: Run the IrDA Demo.exe program. - - On the PC: The program is searching for an IrDA standard device. On the MCP215X MCP215X Data Logger Demo Board: On the MCP215X MCP215X Data Logger Demo Board: Insert the 9V battery into the battery holder (BT1) or The green power LED (D10) will turn on, the DTR LED plug a 9V AC-to-DC power supply (such as those will be on, while all the other UART flow control supplied with some Microchip development tools) into signals (CTS, RTS, CD, RI and DSR) are off. The RD7 the 9V DC connection plug (J2). and RD6 LEDs will also be on. You may need to depress the RESET switch if the In the IrDA® standard demo PC program window: LCD does not display the Microchip program revision The program should indicate that it has found an IrDA information and then the directions for demo program standard device, called "Generic IrDA". selection. On the PC: On the PC: If the PC is configured to show the IR icon in the The message "Generic IrDA is in range" will be system tray, a single IR LED will be displayed. displayed; "Generic IrDA" is the device ID of the MCP2150 MCP2150. Place the mouse cursor over this icon. On the MCP215X MCP215X Data Logger Demo Board: On the MCP215X MCP215X Data Logger Demo Board: Depress Switch 2 (SW2). This causes the vending machine program to be executed. In the IrDA standard demo PC program window: In the IrDA standard demo PC program window: Depress and release the Connect button. Once the connection is made, the program window will be updated to show that the Connect button now is called the Disconnect button. On the MCP215X MCP215X Data Logger Demo Board: The CD LED will turn on, and the CTS LED will flash. This indicates that an IR link has been established between the PC and the demo board. 2004 Microchip Technology Inc. DS51516A-page 35 MCP215X MCP215X Data Logger Demo Board User's Guide TABLE 2-8: VENDING MACHINE DEMO - WINDOWS® XP (CONTINUED) Step Action Result 9 On the PC: If the PC is configured to show the IR icon in the system tray, the single IR LED icon will change to an icon of two IR LEDs facing each other talking. Place the mouse cursor over this icon. 10 On the PC: The message "Wireless link with Generic IrDA at 115200 bps" will be displayed. This shows that a link is now established for data communication and that the IR communication rate is 115200 bps, the baud rate that was negotiated between the PC IrDA standard hardware and the MCP2150 MCP2150. - On the MCP215X MCP215X Data Logger Demo Board: Switch 2 (SW2) increments the soda counter, while Switch 3 (SW3) increments the candy counter. The value of the candy and soda counters will be displayed on the LCD. Depress Switch 2 until the soda counter displays 7 and depress Switch 3 until the candy counter displays 12. For demonstration purposes, it is nice when the two counter values are different. In the IrDA standard demo PC program window: On the MCP215X MCP215X Data Logger Demo Board: Depress and release the Read Data button. The CTS LED will strobe rapidly and then return to the normal rate. In the IrDA standard demo PC program window: The program window will update the display for "Number of Sodas Sold =" and "Number of Candies Sold =" to the value displayed on the demo board LCD. At the bottom of the IrDA standard demo PC program window, there is an area that displays the raw data received from the MCP215X MCP215X Data Logger Demo Board. - On the MCP215X MCP215X Data Logger Demo Board: Update the soda and candy counters by depressing Switch 2 until the soda counter displays 14 and depressing Switch 3 until the candy counter displays 16. In the IrDA standard demo PC program window: On the MCP215X MCP215X Data Logger Demo Board: Depress and release the Read Data button. The CTS LED will strobe rapidly before returning to the normal rate. In the IrDA standard demo PC program window: The program window will update the display for "Number of Sodas Sold =" and "Number of Candies Sold =" to the new value displayed on the demo board LCD. There is an area at the bottom of the IrDA standard demo PC program window that displays the raw data received from the MCP215X MCP215X Data Logger Demo Board. Step 12 and then Step 13 may be repeated. - In the IrDA standard demo PC program window: In the IrDA standard demo PC program window: Depress and release the Disconnect button. This will disconnect (close) the IR link. When the IR link is disconnected, the PC icon will change to indicate that the IR link is disconnected (has a red X). On the MCP215X MCP215X Data Logger Demo Board: The CD and the CTS LEDs will turn off. If the PC is configured to show the IR icon in the - system tray, a single IR LED will be displayed. 11 12 13 14 15 16 DS51516A-page 36 2004 Microchip Technology Inc. Installation and Operation 2.4.3.2.2 Steps to Operate the 250-byte S -> P Data Transfer Demo - Windows XP The 250-byte S -> P data transfer demo is shown by the steps in Table 2-9. TABLE 2-9: 250 BYTE S -> P DATA TRANSFER DEMO - WINDOWS® XP Step Action Result 1 - 2 3 4 5 6 7 8 Place both devices on a flat surface about 25 cm (10") apart, with the IR ports facing each other. On the MCP215X MCP215X Data Logger Demo Board: Ensure that jumpers JP1 and JP2 are shorted (closed position). On the MCP215X MCP215X Data Logger Demo Board: Ensure that jumper JP7 is shorted (closed position). On the PC: Run the IrDA Demo.exe program. - - On the PC: The program is searching for an IrDA® standard device. On the MCP215X MCP215X Data Logger Demo Board: On the MCP215X MCP215X Data Logger Demo Board: Insert the 9V battery into the battery holder (BT1) or The green power LED (D10) will turn on, the DTR LED plug a 9V AC-to-DC power supply (such as those will be on, while all the other UART Flow Control sigsupplied with some Microchip development tools) into nals (CTS, RTS, CD, RI and DSR) will be off. Also the the 9V DC connection plug (J2). RD7 and RD6 LEDs will be on. You may need to depress the RESET switch if the In the IrDA Demo PC program window: LCD does not display the Microchip program revision The program should indicate that it has "found" an information, as well as the directions for demo IrDA standard device, called "Generic IrDA". program selection. On the PC: On the PC: If the PC is configured to show the IR icon in the The message "Generic IrDA is in range" will be dissystem tray, a single IR LED will be displayed. played, "Generic IrDA" is the device ID of the Place the mouse cursor over this icon. MCP2150 MCP2150. On the MCP215X MCP215X Data Logger Demo Board: On the MCP215X MCP215X Data Logger Demo Board: This causes the 250-byte S->P data transfer program Depress Switch 2 and Switch 3 (SW2 + SW3) to be executed. simultaneously. The LCD will display that this program was selected and then update the display to show the two options for transmitting data from the PIC16F877 PIC16F877 to the MCP2150 MCP2150: 1. CTS (transmit data bytes while CTS is low) 2. 64 bytes (transmit 64 data bytes when CTS goes low) On the MCP215X MCP215X Data Logger Demo Board: On the MCP215X MCP215X Data Logger Demo Board: Depress Switch 2 and Switch 3 to select which flavor If SW2 is depressed, the Host Controller will only of the program is executed. transmit data to the MCP2150 MCP2150 while the CTS signal is low. The LCD will indicate that the MCP215X MCP215X Data Logger Demo Board is waiting to receive a data byte from the Primary device. If SW3 is depressed, the Host Controller will transmit 64 bytes of data to the MCP2150 MCP2150 when the CTS signal goes low. The LCD will indicate that the MCP215X MCP215X Data Logger Demo Board is waiting to receive a data byte from the Primary device. 2004 Microchip Technology Inc. DS51516A-page 37 MCP215X MCP215X Data Logger Demo Board User's Guide TABLE 2-9: 250 BYTE S -> P DATA TRANSFER DEMO - WINDOWS® XP (CONTINUED) Step Action Result 9 In the IrDA standard demo PC program window: Depress and release the Connect button. 10 On the PC: If the PC is configured to show the IR icon in the system tray, the single IR LED icon will change to an icon of two IR LEDs facing each other and talking. Place the mouse cursor over this icon. 11 In the IrDA standard demo PC program window: In the TX Data (ASCII) entry box, type in any number (such as "5"). In the IrDA standard demo PC program window: Depress and release the Send Byte button. In the IrDA standard demo PC program window: Once the connection is made, the program window will be updated to show that the Connect button now is called the Disconnect button. On the MCP215X MCP215X Data Logger Demo Board: The CD LED will turn on and the CTS LED will flash. This indicates that an IR link is established between the PC and the demo board. On the PC: The message "Wireless link with Generic IrDA at 115200 bps" will be displayed. This shows that a link is now established for data communication and that the IR communication rate is 115200 bps, the baud rate that was negotiated between the PC IrDA standard hardware and the MCP2150 MCP2150. - 12 13 14 Step 7 through Step 12 may be repeated. In the IrDA standard demo PC program window: Depress and release the Disconnect button. 15 If the PC is configured to show the IR icon in the system tray, a single IR LED will be displayed. DS51516A-page 38 On the MCP215X MCP215X Data Logger Demo Board: The CTS LED will strobe rapidly and then return to the normal rate, with the PORTD LEDs showing the ASCII value for the data byte transmitted ("5" = 0x35). After approx. 1 second, the PIC16F877 PIC16F877 will return to the routine used to select how the 250-byte table is transmitted (see Step 7). The LCD will display the options. In the IrDA standard demo PC program window: The "Raw Received Data" window will display the data table that was transmitted by the MCP215X MCP215X Data Logger Demo Board. This table is shown in Appendix D. "MCP215X MCP215X 250-Byte Data Transmit Table". The scroll bar may be used to inspect the data received. - In the IrDA standard demo PC program window: This will disconnect (close) the IR link. When the IR link is disconnected, the PC icon will change to indicate that the IR link is disconnected (has a red X). On the MCP215X MCP215X Data Logger Demo Board: The CD and the CTS LEDs will turn off. - 2004 Microchip Technology Inc. Installation and Operation 2.5 MCP215X MCP215X DATA LOGGER DEMO BOARD DESCRIPTION The following sections describe each element of this demo board in further detail. 2.5.1 Power The MCP215X MCP215X Data Logger Demo Board is powered by either a single 9V battery or an AC-to-9V power supply. This voltage is regulated to a nominal voltage of 4.5V. The green LED (D10) is the power indicator, turning on when power is applied. 2.5.2 MCP215X MCP215X IrDA Protocol Stack Controller Device This demo board highlights the MCP2150 MCP2150 or the MCP2155 MCP2155 IrDA Protocol Stack Controller device (U2) to demonstrate the implementation of an IR port in an embedded system application. The MCP215X MCP215X device handles all IrDA standard protocol tasks, while allowing the system designer to easily interface the device to a microcontroller via a standard UART port. The key signals for the MCP2150-to-microcontroller (Host UART) interface are shown in Table 2-10, while Table 2-11 shows these signals for the MCP2155 MCP2155. The operation of the host UART interface is slightly different for the MCP2150 MCP2150 and the MCP2155 MCP2155. Further information on the Host Controller interface may be obtained from the device documentation: · MCP2150 MCP2150 data sheet, "IrDA® Standard Protocol Stack Controller Supporting DTE Applications", (DS21655 DS21655) · MCP2155 MCP2155 data sheet, "IrDA® Standard Protocol Stack Controller Supporting DCE Applications", (DS21690 DS21690) · Application Note 858, "Interfacing the MCP215X MCP215X to a Host Controller", (DS00858 DS00858) 2004 Microchip Technology Inc. DS51516A-page 39 MCP215X MCP215X Data Logger Demo Board User's Guide TABLE 2-10: Pin Name MCP2150 MCP2150 HOST UART INTERFACE PINS Pin Pin Number Type (PDIP) Buffer Type Description TX 8 I TTL RX 9 O - Asynchronous receive; from Host Controller UART. RI 10 I TTL Ring Indicator. The value on this pin is driven high. DSR 11 O - Data Set Ready. Indicates that the MCP2150 MCP2150 has completed reset: 1 = MCP2150 MCP2150 is initialized. 0 = MCP2150 MCP2150 is not initialized. DTR 12 I TTL Data Terminal Ready. The value of this pin is ignored once the MCP2150 MCP2150 is initialized. It is recommended that this pin be connected so that the voltage level is either VSS or VCC. At device power-up, this signal is used with the RTS signal to enter device ID programming. 1 = Enter device ID programming mode (if RTS is cleared). 0 = Do not enter device ID programming mode. CTS 13 O - Clear-to-Send. Indicates that the MCP2150 MCP2150 is ready to receive data form the Host Controller. This signal is locally emulated and not related to the CTS/RTS bit of the IrDA® standard Primary device. 1 = Host Controller should not send data. 0 = Host Controller may send data. RTS 14 I TTL Request-to-Send. Indicates that a Host Controller is ready to receive data from the MCP2150 MCP2150. This signal is locally emulated and not related to the CTS/RTS bit of the IrDA standard Primary device. 1 = Host Controller not ready to receive data. 0 = Host Controller ready to receive data. Asynchronous transmit; to Host Controller UART. At device power-up, this signal is used with the DTR signal to enter device ID programming. 1 = Do not enter device ID programming mode. 0 = Enter device ID programming mode (if DTR is set). CD 19 I ST Legend: TTL = TTL compatible input I = Input DS51516A-page 40 Carrier Detect. Indicates that the MCP2150 MCP2150 has established a valid link with a Primary Device. 1 = An IR link has not been established (No IR Link). 0 = An IR link has been established (IR link). ST = Schmitt Trigger input with CMOS levels O = Output 2004 Microchip Technology Inc. Installation and Operation TABLE 2-11: Pin Name MCP2155 MCP2155 HOST UART INTERFACE PINS Pin Pin Number Type (PDIP) Buffer Type Description TX 8 I TTL RX 9 O - Asynchronous receive; from Host Controller UART. RI 10 I TTL DSR 11 O - Data Set Ready. Indicates that the MCP2150 MCP2150 has established a valid IrDA standard link with a Primary device. This signal is locally emulated and not related to the DTR bit of the IrDA standard Primary device. (Note 1) 1 = An IR link has not been established (No IR Link). 0 = An IR link has been established (IR link). DTR 12 I TTL Data Terminal Ready. Indicates that the embedded device connected to the MCP2150 MCP2150 is ready for IR data. The state of this bit is communicated to the IrDA standard Primary device, via the IrDA standard DSR bit carried by IrCOMM. 1 = Embedded device not ready. 0 = Embedded device ready. CTS 13 O - Clear-to-Send. Indicates that the MCP2150 MCP2150 is ready to receive data form the Host Controller. This signal is locally emulated and not related to the CTS/RTS bit of the IrDA standard Primary device. 1 = Host Controller should not send data. 0 = Host Controller may send data. RTS 14 I TTL Request-to-Send. Indicates that a Host Controller is ready to receive data from the MCP2150 MCP2150. This signal is locally emulated and not related to the CTS/RTS bit of the IrDA standard Primary device. 1 = Host Controller not ready to receive data. 0 = Host Controller ready to receive data. CD 19 I ST Carrier Detect. The state of this bit is communicated to the IrDA standard Primary device via the IrDA standard CD bit. 1 = No Carrier Present. 0 = Carrier Present. Asynchronous transmit; to Host Controller UART. Ring Indicator. The state of this bit is communicated to the IrDA® standard Primary device. 1 = No Ring Indicate Present. 0 = Ring Indicate Present. Legend: TTL = TTL compatible input ST = Schmitt Trigger input with CMOS levels I = Input O = Output Note 1: The state of the DTR output pin does not reflect the state of the DTR bit of the IrDA standard Primary device. 2004 Microchip Technology Inc. DS51516A-page 41 MCP215X MCP215X Data Logger Demo Board User's Guide The key signals for the MCP215X-to-IR transceiver circuit are shown in Table 2-12. TABLE 2-12: MCP2150 MCP2150 IR INTERFACE PINS Pin Number (PDIP) Pin Type Buffer Type TXIR 2 O - Asynchronous transmit to IrDA® standard transceiver. RXIR 3 I ST Asynchronous receive from Infrared transceiver. Pin Name Legend: A = Analog I = Input Description P = Power O = Output In addition to the signals described in Tables 2-10 through 2-12, the MCP215X MCP215X RESET input is connected to the RESET output of the Host Controller (PIC16F877 PIC16F877 I/O pin RC0), which asserts low after the RESET push button switch is asserted and the OSC1 and OSC2 pins are connected to an external 11.0592 MHz oscillator; specified in the MCP2150 MCP2150 data sheet (DS21655 DS21655) and the MCP2155 MCP2155 data sheet (DS21690 DS21690) 2.5.2.1 MCP215X MCP215X OPERATION The MCP215X MCP215X (U3) implements the 9-wire "cooked" service class in the IrCOMM Application Layer protocol of the IrDA standard specification. IrCOMM is the IrDA standard specification for the replacement of the communication ports (serial and parallel) of a PC. The MCP215X MCP215X allows the replacement of the serial cable with a wireless interface. The MCP215X MCP215X implements the entire protocol layer, while the Host Controller (PIC16F877 PIC16F877) talks to the MCP215X MCP215X as if it were a serial port with flow control. The MCP215X MCP215X operates as a Secondary device only, so it will not initiate IrDA standard communication with other IrDA standard devices (neither a Secondary or Primary device). Appendix C. "MCP215X MCP215X Connection Sequence Overview" shows the connection sequence between a Primary device and the MCP215X MCP215X (Secondary device). This connection sequence is shown at an overview level and does not show exact operation. DS51516A-page 42 2004 Microchip Technology Inc. Installation and Operation 2.5.3 PICmicro® Microcontroller Functions The MCP215X MCP215X interfaces to the PIC16F877 PIC16F877 (or PIC16F877A PIC16F877A) microcontroller (U1). This device was chosen for this application because it has a UART port, an A/D Converter (ADC), Flash memory for reprogrammability, a sufficient number of I/O pins to interface to the LED and LCD module and is low power. The MCLR input of the PIC16F877 PIC16F877 is connected to the RESET push button switch. The device is reset when the RESET push button is depressed. The PIC16F877 PIC16F877 RA5 pin is connected to the S2 push button switch, while the RA4 pin is connected to the S3 push button switch. After device reset, the state of these switches is polled to determine which firmware program (vending machine or 250-byte S P data transmit) to execute. The PIC16F877 PIC16F877 is connected to a standard In-Circuit Serial ProgrammingTM (ICSPTM) header (J3) to allow easy program access to the device. 2.5.4 IR Transceiver Circuit The IR transceiver circuit uses a Vishay® TFDS 4500 integrated optical transceiver. 2.5.5 Signal Header To allow easy access to many of the system signals, a header (J4) was placed on one of the edges of the board. This allows the signals from the MCP2150 MCP2150 or MCP2155 MCP2155 to be accessed. FIGURE 2-12: SIGNAL INTERFACE HEADER J4 GND + 5V Enable BAUD1 BAUD0 RESET RI CD DSR DTR CTS RTS RX TX J4 The silk-screen is incorrect: CTS and RTS signals are reversed 2004 Microchip Technology Inc. DS51516A-page 43 MCP215X MCP215X Data Logger Demo Board User's Guide 2.5.6 Using the Integrated Optical Transceiver (U5) To use the integrated optical transceiver, it must be electrically powered and connected to the system. Connecting the integrated optical transceiver is done by: 1. Shorting Jumper JP7. (this connects VDD to the integrated optical transceiver (U5) 2. Shorting Jumper JP1. If jumper JP1 is removed, ensure that the short between two pins (on bottom-side of board) is present. 3. Shorting Jumper JP2. If jumper JP2 is removed, ensure that the short between two pins (on bottom-side of board) is present. Now the integrated optical transceiver should be operational. 2.5.7 Using a Discrete Optical Transceiver Daughter Board via Headers J1 and J5 To use an alternative optical transceiver, a daughter board can be connected to the MCP215X MCP215X Data Logger Demo Board via the connection header of J1 and J5 (see Figure 2-13). The integrated optical transceiver on the MCP215X MCP215X Data Logger Demo Board must be electrically removed from the system. The following explains how to accomplish this: 1. Remove Jumper on JP7 (this removes VDD from the integrated optical transceiver (U5). 2. Remove Jumper on JP1. If jumper is removed, ensure that the short between two pins (on bottom side of board) has been cut. 3. Remove Jumper on JP2. If jumper is removed, ensure that the short between two pins (on bottom side of board) has been cut. 4. Plug the discrete optical transceiver board into Header J1 and J5. Now the optical transceiver daughter board should be operational. OPTICAL TRANSCEIVER DAUGHTER BOARD INTERFACE HEADER (J1 AND J5) VSS RXIR TXIR VDD FIGURE 2-13: VSS RXPD RXPDREF VDD J1 J5 DS51516A-page 44 2004 Microchip Technology Inc. MCP215X MCP215X DATA LOGGER DEMO BOARD USER'S GUIDE Appendix A. Schematic and Layouts A.1 INTRODUCTION This appendix contains the following schematics and layouts for the MCP215X MCP215X Data Logger Demo Board: · · · · · · A.2 Board Schematic - Digital circuitry Board Schematic - Analog circuitry Board - Top Layer Board - Bottom Layer Board - Ground Layer Board - Power Layer SCHEMATICS AND PCB LAYOUT Figure A-2 shows the MCP215X MCP215X Data Logger Demo Board schematic, while Figure A-3 and Figure A-4 show the layout for the two different layers. The layer order is shown in Figure A-1. FIGURE A-1: LAYER ORDER Top Layer Bottom Layer 2004 Microchip Technology Inc. DS51516A-page 45 A B C D 1 2 3 4 5 6 1 2 3 4 5 6 9VDC Gnd 1 2 3 4 5 6 7 8 8 PIN CONN 1 2 3 4 5 6 7 8 RB +5V RB0 RB1 RB2 RB3 CD RI ICD CLK ICD DATA 1 2 3 R1 470 1 (RC0) 2 (RC1) 3 4 (RC3) 5 (RC4) 6 7 (RC6) 8 (RC7) C5 0.1uF C1 0.1uF R3 4.7K 470 +5V R19 8 PIN CONN 1 2 3 4 5 6 7 8 RC ICD DATA ICD CLK NMCLR 9VDC CONN J2 470 R18 R4 4.7K +5V VR1 SW2 6 PIN CONN J3 SW3 5K POT +5V C2 0.1uF RESET 215X DSR DTR SCL SDA RC5 TX RX 3 470 R17 4 2 R8 10K +5V 1 2 3 4 5 6 7 8 8 PIN CONN 1 2 3 4 5 6 7 8 RD BRIDGE1 1 D11 RD0 RD1 RD2 RD3 RD4 RD5 BAUD0 BAUD1 1 2 3 4 5 6 3 13 14 26 25 24 23 18 17 16 15 30 29 28 27 22 21 20 19 +5v 1 2 3 RE 2 OSC1 +5V 1 1 2 3 C16 220uF 3 5 6 7 8 D10 LED R2 470 +5V CLK 4.7K R7 RTS CTS EN Y2 XTAL +5V GND RX TX RC5 SDA SCL DTR DSR RESET 215X +5V R6 4.7K +5V R5 4.7K BAUD1 BAUD0 RD5 RD4 RD3 RD2 +5V RD1 RD0 10 EN 9 CTS 8 RTS RA0 LCD EN LCD R/W LCD RS RA4 RA5 Vin U4 VREG OSC1 OSC2 RC7 RC6 RC5 RC4 RC3 RC2 RC1 RC0 RD7 RD6 RD5 RD4 RD3 RD2 RD1 RD0 RE2 RE1 RE0 6 PIN CONN 1 2 3 4 5 6 RA C15 220 uF 40 PIN DEVICE Vss Vss RB0 RB1 RB2 RB3 RB4 RB5 RB6 RB7 RA0 RA1 RA2 RA3 RA4 RA5 MCLR VDD VDD U1 BT1 9V Battery D12 1N914 1N914 12 31 33 RB0 34 RB1 35 RB2 36 RB3 37 CD 38 RI 39 ICD CLK 40 ICD DATA 2 3 4 5 6 7 1 11 32 RA4 RA5 RA0 NMCLR LCD EN LCD R/W LCD RS 0.1uF C9 GND 2 4 VDD RESET + - 0.1uF 1 2 3 4 5 6 7 8 9 10 11 12 13 14 J4 GND A2 A1 A0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 22pF C14 4 3 2 1 C3 0.1uF R38 470 R21 5K R22 5K JP6 +5V Optional JP5 C11 0.1uF R9 100 +5V RC6 TX RX RX CTS CTS RTS RTS DTR DTR DSR DSR CD CD RI RI Reset RESET 215X Baud 0 Baud 0 Baud 1 Baud 1 +5V EN EN +5V GND OSC1 24LC256 24LC256 DIP SDA SCL WP Vcc U2 C10 +5V 0.1uF Y3 C4 C8 0.1uF U5 1 2 3 4 47 R26 8 7 6 5 JP1 JUMPER C13 18pF 11.0592 MHZ 5K R24 10K R35 TFDS4500 TFDS4500 C12 18pF +5V Baud 1 Baud 0 R37 470 +5V CD R27 22 1 + JP7 2 +5V MCP2150 MCP2150 VDD RESET EN CD BAUD1 TX BAUD0 RX RI TXIR RXIR DSR DTR OSC1 CTS OSC2 RTS VSS U3 RESET 215X LED - CD LDC1 TX- EN DB0 DB1 DB2 DB3 DB4 DB5 DB6 DB7 4 5 6 7 8 RB0 9 RB1 10 RB2 11 RB3 +5V 1 + - +5V 1 2 3 4 J1 TX RX RI DSR DTR CTS RTS +5V J5 LED 4 3 2 1 Date: File: B Size Title + R29 LED RI +5V JP3 2 470 470 R20 470 R16 470 R15 470 R14 470 R13 470 R12 RD0 RD1 RD2 RD3 RD4 RD5 BAUD0 BAUD1 Revision 1 20-Sep-2004 Sheet of C:\Protel Projects\Mark Palmer\MCP2150 MCP2150 PICDEM Bd\PICDEM 2150.ddb Drawn By: 103-00032 MCP2150 MCP2150 PICDEM Bd. Number 1 R25 10K JUMPER JP4 LED 2 RD0 LED - + RD1 LED - + RD2 LED - + RD3 LED - + RD4 LED - + RD5 LED - + 470 R10 R11 +5V 2.2K +5V 2.2K +5V R30 2.2K +5V DSR + R34 2.2K +5V DTR - + R31 2.2K +5V CTS - + R32 LED 2.2K RTS + R33 LED LED LED RXPDREFBaud 0 RXPD Baud 1 + 2.2K LED RX - +5V + R28 4 PIN CONN 4 PIN CONN 6 7 8 9 10 11 12 13 2.2K R23 LCD E R/W RS VEE VCC GND GND1 300 RD7 RD6 LED - + R36 3 LCD EN 2 LCD R/W 1 LCD RS 14 13 12 15 JP2 JUMPER 16 15 5 14 4 17 18 1 2 3 +5V VR2 POT 2 2 DS51516A-page 46 1 A B C D FIGURE A-2: 1 +5V MCP215X MCP215X Data Logger Demo Board User's Guide MCP215X MCP215X DATA LOGGER DEMO BOARD SCHEMATIC 2004 Microchip Technology Inc. FIGURE A-3: MCP215X MCP215X DATA LOGGER DEMO BOARD LAYOUT - TOP LAYER 2004 Microchip Technology Inc. DS51516A-page 47 MCP215X MCP215X Data Logger Demo Board User's Guide FIGURE A-4: DS51516A-page 48 MCP215X MCP215X DATA LOGGER DEMO BOARD LAYOUT - BOTTOM LAYER 2004 Microchip Technology Inc. MCP215X MCP215X DATA LOGGER DEMO BOARD USER'S GUIDE Appendix B. Bill-Of-Materials (BOM) TABLE B-1: Qty 9 2 BILL-OF-MATERIALS (BOM) Reference C1,C2,C3,C4, C5,C8,C9,C10, C11 C12,C13 Description Capacitor, Ceramic, MONO, .1 µF, 50V 10% 3 Capacitor, 18 pF, 100V, 5%, MONOLITH Ceramic C14 Capacitor, 22 pF, 100V, 5%, MONOLITH Ceramic C15,C16 Capacitor, 220 µF, 25V, Alum Lytic Radial D12 Diode, SS, HI COND, 100V, 200 mA, DO-35 DO-35 R31,R23,R29,R33 RES 2.2 k, 1/4W 5%, Carbon Film R28,R30,R32,R34 R3,R4,R5,R6,R7 Resistor, 4.7 k, 1/4W 5%, Carbon Film R8,R25,R35 Resistor, 10 k, 1/4W, 5%, Carbon Film R21,R22,R24 Resistor, 5.1 k, 1/4W, 5%, Carbon Film R26 Resistor, 47, 1/4W, 5%, Carbon Film R27 Resistor, 22, 1/4W, 5%, Carbon Film R9 Resistor, 100, 1/4W, 5%, Carbon Film R36 Resistor, 300, 1/4W, 5%, Carbon Film R1,R2,R10, R11, Resistor, 470, 1/4W, 5%, Carbon Film R12, R13, R14, R15, R16, R17, R18, R19, R20, R37,38 JP1,JP2,JP3, Conn Header, 2POS, .100, VERT TIN JP4,JP7 JP5,JP6,RE Conn Header, 3POS, .100, VERT TIN 2 J1,J5 Conn Header, 4POS, .100, VERT TIN 1 RA Conn Header, 6POS, .100, VERT TIN 3 RB,RC,RD Conn Header, 8POS, .100, VERT TIN 3 1 JP1,JP2 JP4 BT1 SHUNT LP W/HANDLE 2POS 30AU Conn, PC VERT 9V SNAP-ON 1 1 1 1 1 J2 J3 VR1 VR2 J4 Conn, Power Jack, 2.5MM, PCB, CIRC Conn, Mod Jack, 6-6, R/A ,PCB, 50AU Pot, 5.0 k, Thumbwheel Cerm ST Do not populate Conn Header, 14POS 14POS, .100, VERT TIN 1 2 1 8 5 3 3 1 1 1 1 15 5 2004 Microchip Technology Inc. Manufacturer ® Part Number Panasonic - ECG ECU-S1H104KBB ECU-S1H104KBB Panasonic - ECG ECU-S2A180JCA ECU-S2A180JCA Panasonic - ECG ECU-S2A220JCA ECU-S2A220JCA Panasonic - ECG Fairchild Semiconductor® Yageo America ECA-1EM221 ECA-1EM221 1N914TR 1N914TR CFR-25JB-2K2 CFR-25JB-2K2 Yageo America Yageo America Yageo America Yageo America Yageo America Yageo America Yageo America Yageo America CFR-25JB-4K7 CFR-25JB-4K7 CFR-25JB-10K CFR-25JB-10K CFR-25JB-5K1 CFR-25JB-5K1 CFR-25JB-47R CFR-25JB-47R CFR-25JB-22R CFR-25JB-22R CFR-25JB-100R CFR-25JB-100R CFR-25JB-300R CFR-25JB-300R CFR-25JB-470R CFR-25JB-470R Molex®/Waldom® Electronics Corp Molex/Waldom Electronics Corp Molex/Waldom Electronics Corp Molex/Waldom Electronics Corp Molex/Waldom Electronics Corp AMP/Tyco Electronics Keystone Electronics® CUI Inc AMP/Tyco Electronics Bourns Inc.® Do not populate Molex/Waldom Electronics Corp 22-28-4020 22-28-4030 22-28-4040 22-28-4060 22-28-4080 881545-2 968 PJ-102B PJ-102B 520470-3 3352W-1-502 Do not populate 22-28-4140 DS51516A-page 49 MCP215X MCP215X Data Logger Demo Board User's Guide TABLE B-1: Qty BILL-OF-MATERIALS (BOM) (CONTINUED) Reference 1 U1 1 U1 Socket 1 U2 1 U2 socket 1 U3 1 U3 socket 1 U4 1 U5 1 D11 1 LDC1 1 D10 15 1 1 1 RD0-RD7, CD,CTS RTS,DSR,TX, RX,RI,DTR, RESET SW2,SW3 Y2 Y2 Socket Y3 2 Y3 socket pins 3 DS51516A-page 50 Description Manufacturer High Performance Microcontrollers with 10-bit A/D 40 Pin, IC Socket, GOLD, .600 Part Number Microchip Technology Inc. Mill-Max Manufacturing Corp.® 256K I2CTM CMOS Serial EEPROM Microchip Technology Inc. 8-Pin, IC Socket, GOLD, .300 Mill-Max Manufacturing Corp. MCP2150 MCP2150 Microchip Technology Inc. 18-Pin, IC Socket, GOLD, .300 Mill-Max Manufacturing Corp. IC Regulator, Positive 5V, TO-220 National SemiconductorTM TFDS, LED, IR Serial Infrared Transceiver Vishay® Module Side View Rectifier Bridge, 1.5A, 200V, WOG General Semiconductor® 16 X 2 Chip On Glass LCD Display FEMA Electronics P-Tec Corp Led, SS, Green, DIFF, RA, PCB, 3 MM Fairchild Optoelectronics Group Led ,SS, Red, Diffused ,PCB, 3 MM Fairchild Optoelectronics Group LM340T-5 LM340T-5.0 Switch, Tact, 6 MM, MOM, 100GF 100GF B3F-1000 B3F-1000 Oscillator, 20.000 MHZ, TTL Oscillator, Socket, Full Size, 4,Pin Crystal, 11.0592 MHZ, 20 pF, Load Cap Pin Recpt, .015/.025 DIA, 0667 SER Omron Electronics, Inc®-ECB Div ECS Inc. Aries Electronics CTS-Frequency Controls Mill-Max Manufacturing Corp. PIC18F452-I/P PIC18F452-I/P 110-93-640-41-001000 24LC256 24LC256 110-93-308-41-001000 MCP2150-I/P MCP2150-I/P 110-93-318-41-001000 TFDS4500-TR3 TFDS4500-TR3 W02G CG-1621-SGR1C CG-1621-SGR1C PCOG1602C-GNFD-C PCOG1602C-GNFD-C MV5464MP4B MV5464MP4B MV5064MP4B MV5064MP4B ECS-100A-200 ECS-100A-200 1107741 ATS111 ATS111 0667-0-15-01-3027100 2004 Microchip Technology Inc. MCP215X MCP215X DATA LOGGER DEMO BOARD USER'S GUIDE Appendix C. MCP215X MCP215X Connection Sequence Overview FIGURE C-1: HIGH-LEVEL MCP215X MCP215X CONNECTION SEQUENCE Primary Device Normal Disconnect Mode (NDM) Send XID Commands (timeslots n, n+1, .) (approximately 70ms between XID commands) Finish sending XIDs (max timeslots - y frames) Broadcast ID MCP215x (Secondary Device) No Response XID Response in timeslot y (claiming this timeslot) (MCP215x always claims timeslot 2) No Response to these XIDs No Response to Broadcast ID Discovery Send SNRM Command (w/ parameters and connection address) UA response with parameters using connect address Open channel for IAS Queries Confirm channel open for IAS Send IAS Queries Provide IAS responses Open channel for data (some devices, such as PDAs, will not issue this command until data is sent) Normal Response Mode (NRM) Send Data or Status Confirm channel open for data (MCP2150 MCP2150 CD pin driven Low, MCP2155 MCP2155 DSR pin driven Low) Send Data or Status Send Data or Status Send Data or Status Shutdown link Return to NDM state 2004 Microchip Technology Inc. Confirm shutdown (back to NDM state) DS51516A-page 51 MCP215X MCP215X Data Logger Demo Board User's Guide NOTES: DS51516A-page 52 2004 Microchip Technology Inc. MCP215X MCP215X DATA LOGGER DEMO BOARD USER'S GUIDE Appendix D. MCP215X MCP215X 250-Byte Data Transmit Table TABLE D-1: PIC16F877 PIC16F877 250-BYTE 250-BYTE DATA TRANSMIT TABLE Line # TXTBL ; ; NOTE: ; D'250' DT DT DT DT DT DT DT DT DT DT DT DT DT DT DT DT DT DT DT DT DT DT DT DT DT 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 DT "12345678", "2BCDEFGH", "32345678", "4bcdefgh", "52345678", "6BCDEFGH", "72345678", "8bcdefgh", "92345678", "ABCDEFGH", "B2345678 B2345678", "Cbcdefgh", "D2345678 D2345678", "EBCDEFGH", "F2345678 F2345678", "1bcdefgh", "22345678", "3BCDEFGH", "42345678", "5bcdefgh", "62345678", "7BCDEFGH", "82345678", "9bcdefgh", "a2345678", ; the first byte is the byte count ; 1 Characters 0x0D, 0x0A ; 10 Characters 0x0D, 0x0A ; 10 Characters 0x0D, 0x0A ; 10 Characters 0x0D, 0x0A ; 10 Characters 0x0D, 0x0A ; 10 Characters 0x0D, 0x0A ; 10 Characters 0x0D, 0x0A ; 10 Characters 0x0D, 0x0A ; 10 Characters 0x0D, 0x0A ; 10 Characters 0x0D, 0x0A ; 10 Characters 0x0D, 0x0A ; 10 Characters 0x0D, 0x0A ; 10 Characters 0x0D, 0x0A ; 10 Characters 0x0D, 0x0A ; 10 Characters 0x0D, 0x0A ; 10 Characters 0x0D, 0x0A ; 10 Characters 0x0D, 0x0A ; 10 Characters 0x0D, 0x0A ; 10 Characters 0x0D, 0x0A ; 10 Characters 0x0D, 0x0A ; 10 Characters 0x0D, 0x0A ; 10 Characters 0x0D, 0x0A ; 10 Characters 0x0D, 0x0A ; 10 Characters 0x0D, 0x0A ; 10 Characters 0x0D, 0x0A ; 10 Characters 0x0D = Carriage Return, 0x0A = Line Feed 2004 Microchip Technology Inc. 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