Microchip Technology MCP215X Data Logger Demo Board User guide

MCP215X Data Logger

Demo Board

User’s Guide

 2004 Microchip Technology Inc. DS51516A

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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, Sm art Serial, SmartTel and Total Endurance are trademarks of Microchip Technology Incorporated in the U.S.A. and other countries.

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Microchip received 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 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.

8-bit MCUs, KEELOQ

code hopping

DS51516A-page ii  2004 Microchip Technology Inc.

MCP215X DATA LOGGER

DEMO BOARD USER’S GUIDE

Tabl e of Contents

Preface ...........................................................................................................................1

Chapter 1. Overview.......................................................................................................7

1.1 Introduction .....................................................................................................7

1.2 What is the MCP215X Data Logger Demo Board? ........................................ 7

1.3 What the 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 St a rt ed ...... .............. .. .. ............. .. ........................... .. ......................... 11

2.4 Running th e d emos ............. .. .. ............. .. ........................... .. ......................... 23

2.5 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 Connection Sequence Overview ........................................51

Appendix D. MCP215X 250-byte Data Transmit Table .............................................53

Worldwide Sales and Service ....................................................................................54

 2004 Microchip Technology Inc. DS51516A-page iii

MCP215X Data Logger Demo Board User’s Guide

NOTES:

DS51516A-page iv  2004 Microchip Technology Inc.

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 dif fer from those in this document. Please refer to our web site (www.microchip.com) to obt ain 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 on-line help. Select the Help menu, and then Topics to open a list of available on-line help files.

IDE

INTRODUCTION

This chapter contains general information that will be useful to know before using the 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 Data Logger Demo Board User’s Guide

ABOUT THIS GUIDE

Document Layout

This document describes how to use the 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 Overv iew – Important information about the MCP215X Data Logger Demo Board User’s Guide.

• Chapter 2: 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 Data Logger Demo Board.

• Appendix B: Bill-of-Materials – Lists the parts used to build the MCP215X Data Logger Demo Board.

• Appendix C: Connection Sequence – Shows the connection sequence between a Primary device and the 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 docum entation conventions:

DOCUMENTATION CONVENTIONS

Description Represents Examples

Arial font:

Italic charac ters Referenced books MPLAB

Emphasized text ...is the only compiler...

Initial caps A window the Output window

A dialog the Settings dialog A menu selection select Enable Programmer

Quotes A field name in a window or

dialog

Underlined, italic text with right angle bracket

Bold characters A dialog button Click OK

‘bnnnn A binary number where n is a

Text in angle brackets < > A key on the keyboard Press <Enter>, <F1>

Courier font:

Plain Courier Sample source code #define START

Italic Courier A variable argument file.o, where file can be

0xnnnn A hexadecimal number whe re

Square brackets [ ] Optional arguments mcc18 [options] file

Curly brackets and pipe character: { | }

Ellipses... Replaces repeated text var_name [,

A menu path File>Save

A tab Click the Power tab

digit

Filenames autoexec.bat File paths c:\mcc18\h Keywords _asm, _endasm, static Command-line options -Opa+, -Opa- Bit values 0, 1

n is a hexadecimal digit

Choice of mut ually exclu s ive arguments; an OR selection

Represents code supplied by user

“Save project before build”

‘b00100, ‘b10

any valid filename

0xFFFF, 0x007A

[options] errorlevel {0|1}

var_name...] void main (void)

{ ... }

IDE User’s Guide

 2004 Microchip Technology Inc. DS51516A-page 3

MCP215X Data Logger Demo Board User’s Guide

Chapter 1. Overview

1.1 INTRODUCTION

This chapter provides an overview of the MCP215X Data Logger Demo Board and covers the following topics:

• What is the MCP215X Data Logger Demo Board?

• What the MCP215X Data Logger Demo Board kit includes

1.2 WHAT IS THE MCP215X DATA LOGGER DEMO BOARD?

The 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 Data Logger Demo Board is used to evaluate and demonstrate either the MCP2150 or MCP2155 device in a data-logging application. The board will communicate to a Primary device (such as a PDA (e.g., Palm™ 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 device.

Though the MCP215X Data Logger Demo Board ships with a MCP2150 installed, this device may be interchanged with a MCP2155, allowing the MCP2155 to be evaluated.

Note: If the MCP2150 is repl ace d by the MC P21 55 , the MC P2 15 5 dev ice mu st

have the firmware programmed into the device. Ensure that the demo program firmware was assembled for the MCP2155 (the demo program uses conditional assemb ly to use t he same sou r ce file for th e t wo devic es) . Th e “MCP215X” varia ble needs to be equat ed to ‘55 ’. The MPASM™ assemb ler will display a message as to which de vice the fil e has assemble d for.

1.3 WHAT THE MCP215X DATA LOGGER DEMO BOARD KIT INCLUDES

This MCP215X Data Logger Demo Board Kit includes:

• The MCP215X Data Logger Demo Board (with MCP2150 installed)

• 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 or the MCP2155.

 2004 Microchip Technology Inc. DS51516A-page 7

MCP215X Data Logger Demo Board User’s Guide

NOTES:

DS51516A-page 8  2004 Microchip Technology Inc.

Chapter 2. Installation and Operation

2.1 INTRODUCTION

This chapter discusses the installation and operation of the 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 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 or the MCP2155 device.

The IrDA standard system requires the Primary device to be running an appropriate application program. The 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

These application programs are supported by three application notes that discuss the programming of these particular operating systems. These application notes are:

• AN888, “Programming the Palm OS

• AN926, “Programming the Pocket PC for Embedded IR Applications”, DS00926

• AN941, “Programming Windows XP

Windows XP

MCP215X DATA LOGGER

DEMO BOARD USER’S GUIDE

for Embedded IR Applications”, DS00888

for Embedded IR Applications”, DS00941

Note: References to a MCP215X device in this document can refer to either the

MCP2150 or the MCP2155 device.

The host UART interface includes non-data flow control signals. These are the signals between a Host Controller and a MCP215X device. A discussion of the host UART interface is given in the following application note:

• AN858, “Interfacing the MCP215X to a Host Controller”, DS00858

 2004 Microchip Technology Inc. DS51516A-page 9

MCP215X Data Logger Demo Board User’s Guide

2.2 FEATURES

The 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 with MPLAB for user application development

• 18-pin socket for the installation of either a MCP2150 (default device) or a MCP2155 (optional device)

• Header that allows either several board signals to be monitored or allows the MCP215X Data Logger Demo Board to be interfaced to the user’s system

• Eight LEDs that indicate MCP215X status (CTS, RTS, DTR, DSR, CD and RI activity)

• Eight LEDs that are connected to PORTD of the PIC16F877

• Battery-operated by a 9V source (can use a 9V battery)

•PICmicro

• 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)

microcontroller (MCU) RESET switch

In-Circuit Debugger (ICD) interface

DS51516A-page 10  2004 Microchip Technology Inc.

2.3 GETTING STARTED

This section presents an overview of the following system blocks:

• The MCP215X Data Logger Demo Board Hardware

• The 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 Data Logger Demo Board Hardware Overview

The major components for the MCP215X Data Logger Demo Board are:

1. MCP215X device (U3)

2. Optical transceiver (U5 - TFDS 4500)

3. PICmicro MCU (U1 - PIC16F877)

4. LCD module

5. Power supply

6. User inputs to PICmicro MCU (SW2, SW3 and variable resistor (VR1))

7. PICmicro MCU RESET

8. PICmicro MCU crystal (Y2) The MCP215X Data Logger Demo Board is fully assembled and tested for evaluation

and demonstration of the MCP2150 or 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 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-M at erials (BOM) ” .

Installation and Operation

FIGURE 2-1: MCP215X DATA LOGGER DEMO BOARD BLOCK DIAGRAM

Power

ICD

SW3

SW2

RESET

VR1

9V Battery

Power LED

Power Supply

PICmicro

MCU

(40-pin)

MCP215X Header

Optional Not Installed

VR2

Optional Not Installed

SEE

LCD Module (2 Line x 16 Character)

RD7

CTS RTS CD DSR

TX RX RI DTR

JP3

Encoder/Decoder

MCP215X

JP5 JP6

JP2 JP1

RD0

JP4

JP7

Discrete Transceiver Header 1 J1

Header 2

 2004 Microchip Technology Inc. DS51516A-page 11

MCP215X Data Logger Demo Board User’s Guide

Figure 2-2 shows the layout of the MCP215X Data Logger Demo Board with indication to points of interest.

FIGURE 2-2: MCP215X DATA LOGGER DEMO BOARD

9V Battery

Power

Power LED

Power Supply

SW3

SW2

RESET

PICmicro

(40-pin)

MCU

MCP215X Header

ICD

VR1

Switches for program selection and program state

SW3 SW2

— — Waiting for program selection — D Vending machine D — Not used D D 250-byte S→P data transfer

Reset Switch

— PICmicro MCU in normal operation D PICmicro MCU in RESET state

LCD Module (2 Line x 16 Character)

RD7

CTS RTS CD DSR

TX RX RI DTR

JP3

Encoder/Decoder

MCP215X

Connect/Isolate TFDS 4500 TXD and RXD pins

TFDS 4500 TXD and RXD Connected to MCP215x

TFDS 4500 TXD and RXD NOT Connected to MCP215x (Header 1 and 2 can be used)

JP2

JP1

JP5 JP6

Ground/Float PORTD LEDs Cathode

LED Cathode Grounded

LED Cathode Floating (LEDs will not illuminate)

RD0

JP4

JP7

Discrete Transceiver Header 1 J1

Header 2

DS51516A-page 12  2004 Microchip Technology Inc.

Figure 2-3 shows the switches used to reset the MCP2150 and select one of two demo programs. Switch RESET resets the MCP2150 and switch S2 is used for program selection.

FIGURE 2-3: MCP215X DATA LOGGER DEMO BOARD

Installation and Operation

Power

Power LED

ICD

VR1

MCP215X Enable

SW3

SW2

RESET

MCP215X Enabled (Normal Operation)

MCP215X in low-power state

9V Battery

Power Supply

PICmicro

MCU

(40-pin)

MCP215X Header

LCD Module (2 Line x 16 Character)

RD7

CTS RTS CD DSR

TX RX RI DTR

JP3

Encoder / Decoder

JP2

MCP215X

Header 1 and Header 2 allow connection to a daughter board for implementation of other optical transceiver circuits

VDD

VSS

VDD

VSS

RXIR TXIR RXPD RXPDREF

JP1

JP5 JP6

Power/Isolate Integrated Transceiver

RD0

JP4

JP7

Discrete Transceiver Header 1

Header 2

TFDS 4500 is Powered

TFDS 4500 is NOT powered (Header 1 and 2

can be used)

 2004 Microchip Technology Inc. DS51516A-page 13

MCP215X Data Logger Demo Board User’s Guide

FIGURE 2-4: MCP215X DATA LOGGER DEMO BOARD

9V Battery

Power

Power LED

Power Supply

ICD

VR1

MCP215X Demo Board Signal Header

Note: Actual silk-screen placement for the

PICmicro

SW3

SW2

RESET

RTS and CTS labels should be switched

MCU

(40-pin)

MCP215X Header

VR2

SEE U2

LCD Module (2 Line x 16 Character)

RD7

CTS RTS CD DSR

TX RX RI DTR

JP3

Encoder/Decoder

JP2

MCP215X

Optional MCP215X BAUD1:BAUD0 pin pull-up/pull-down selection

MCP215X BAUD1:BAUD0 pins are pulled up

JP1

JP5 JP6

RD0

JP4

JP7

Discrete Transceiver Header 1

Header 2

MCP215X BAUD1:BAUD0 pins are pulled down

MCP215X BAUD1:BAUD0 pins are controlled

by PIC16F877 I/O pins (R37 and R38 must be installed)

DS51516A-page 14  2004 Microchip Technology Inc.

+ 40 hidden pages

Microchip Technology MCP215X Data Logger Demo Board User guide

Specifications and Main Features

Frequently Asked Questions

User Manual

Preface

Chapter 1. Overview

1.1 INTRODUCTION

1.2 WHAT IS THE MCP215X DATA LOGGER DEMO BOARD?

1.3 WHAT THE MCP215X DATA LOGGER DEMO BOARD KIT INCLUDES

Chapter 2. Installation and Operation

2.1 INTRODUCTION

2.2 FEATURES

2.3 GETTING STARTED

FIGURE 2-1: MCP215X DATA LOGGER DEMO BOARD BLOCK DIAGRAM

FIGURE 2-2: MCP215X DATA LOGGER DEMO BOARD

FIGURE 2-3: MCP215X DATA LOGGER DEMO BOARD

FIGURE 2-4: MCP215X DATA LOGGER DEMO BOARD