Microchip Technology MCP215X Data Logger Demo Board User guide

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MCP215X Data Logger

Demo Board

User’s Guide

 2004 Microchip Technology Inc. DS51516A

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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.

Installation and Operation

A description of the MCP215X Data Logger Demo Board jumpers is given in Table 2-1.

TABLE 2-1: JUMPER DESCRIPTIONS AND SETTINGS

Jumper #Typical

Settings

JP1 S To connect TXIR of MCP2150 to TXD of U5 (TFDS 4500)

JP2 S To connect RXIR of MCP2150 to RXD of U5 (TFDS 4500)

JP3 O To connect EN of MCP2150 to V

JP4 S To connect cathode of LEDs (RD7:RD0) to VSS

JP5 N/A To control source of MCP2150 BAUD1 pin JP6 N/A To control source of MCP2150 BAUD0 pin JP7 S To connect VDD to integrated optical transceiver (U5) - TFDS

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 controls the baud

rate and the PORTD LEDs are used.

(1)

S = TXIR connected to TXD O = TXIR Not connected to TXD

S = RXIR connected to RXD O = RXIR Not connected to RXD

S = MCP2150 in Low-power mode O = MCP2150 during normal operation

S = Cathode of LEDs to V O = Cathode of LEDs floating

4500

Description Comment

When Open, the signal can come from the daughter board connected to Header J1/J5.

The PCB default state is

shorted between jum per . No jumper is required.

 2004 Microchip Technology Inc. DS51516A-page 15

MCP215X Data Logger Demo Board User’s Guide

2.3.2 The Embedded System Firmware Overview

There are two 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) to the MCP2150 while the

CTS signal is low.

2. Transfer 64 bytes of data from the Host Controller (PIC16F877) to the 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 firmware follows the flow control of the host UART interface. These are the signals between a Host Controller and a 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 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: DEMO PROGRAM SELECTION

SW3 SW2 Demo Program

——N/A

(waiting for a switch to be depressed)

— D Vending machine

D — Not implemented DDS→P Transfer 250-bytes from demo board to Primary device (PDA)

Note: D = Depressed — = Not depressed

The MCP2150/MCP2155 source code of the MCP215X Data Logger Demo Board is available for download from the Microchip web site at www.microchip.com. This board also supports the MCP2155 device with only a change of the PIC16F877 firmware. The MCP2140 can be supported with some hardware modifications and changes to the PIC16F877 firmware.

DS51516A-page 16  2004 Microchip Technology Inc.

Installation and Operation

FIGURE 2-5: PIC16F877 FIRMWARE FLOW - MAIN

RESET

Display Firmware

Revision Information

Display

Program Selection

Switch

SW3

SW2 or

SW2+SW3

Depressed?

SW2

SW2+SW3

Display Vending

Machine Program Selected

Vending Machine Routine

Display 250-byte S->P

Transfer Program Selected

250-byte S->P Transfer Routine

 2004 Microchip Technology Inc. DS51516A-page 17

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 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 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 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

Description

Transmit the current soda and candy counter values to the Primary device

Clear the current soda and candy counters 6 0x36

ASCII Code Hex Code

Command

5 0x35

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 has received a data byte from the

Primary device. The PIC16F877 follows the flow control of the MCP2150 to ensure that data is not lost.

The MCP2150 handles all the IrCOMM protocol for the data packets that it receives from the PIC16F877.

Once the command has been processed, the 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 FIRMWARE FLOW - VENDING MACHINE

Vending Machine Routine

Display Soda and Candy Information

Switch

SW2 or SW3

Depressed?

Data Byte

Received from

Primary

Device?

Yes

Data

Byte

= 0x35?

Which

Switch is

Depressed?

SW2

Increment Soda Counter

Yes

SW3

Increment Candy Counter

Transmit Data to

Primary Device

Data

Byte

= 0x36?

 2004 Microchip Technology Inc. DS51516A-page 19

Yes

Clear Soda and Candy

Counter Values

MCP215X Data Logger Demo Board User’s Guide

2.3.2.2 250-BYTE SECONDARY DEVICE (S) TO PRIMARY DEVICE DATA

TRANSFER PROGRAM DESCRIPTION

After the 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 S→P 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 will transfer data to the 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 has received a data byte from the Primary device.

In the second method, the PIC16F877 will transfer 64 bytes of the data table to the MCP2150 after the falling edge of the CTS signal. This method gives the best data throughput. T o 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 has received a data byte from the Primary device.

The PIC16F877 follows the flow control of the MCP2150 to ensure that data is not lost. The MCP2150 handles all the IrCOMM protocol for the data packets that it receives from the PIC16F877.

After the table has completed transmission, the 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 Data Logger Demo Board to the Primary device is shown in Appendix D. “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 (Palm™ or Pocket PC), the operation of the Connect button varies.

The 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 S→P 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 FIRMWARE FLOW - 250-BYTE S->P TRANSFER

250-Byte S->P Transfer Routine

Display S->P Transfer

Method Selection

Switch

SW2 or SW3

Depressed?

SW3

Display Xfer 64B/Window

Waiting Message

Data Byte

Received from

Primary

Device?

SW2

Yes

Transfer Table Using 64B/Window Method

Display Xfer if CTS Low

Waiting Message

Data Byte

Received from

Primary

Device?

Yes

Transfer Table Using

CTS Low Method

 2004 Microchip Technology Inc. DS51516A-page 21

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 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 Data Logger Demo Board (Section 2.4.1 “Running the MCP215X Data Logger

Demo Board with a Palm PDA”, Section 2.4.2 “Running the MCP215X Data Logger Demo Board with a Pocket PC PDA” or Section 2.4.3 “Running the MCP215X Data Logger Demo Board with a Window XP PC with an IrDA Standard Port”).

FIGURE 2-8: PRIMARY DEVICE GUIS

Palm™ PDA Pocket PC PDA Windows® XP PC

DS51516A-page 22  2004 Microchip Technology Inc.

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 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 IR Applications”, DS00888

• For Pocket PC OS - Application Note 926, “Programming the Pocket PC OS for Embedded IR Applications”, DS00926

• For Windows XP - Application Note 941, “Prog ra mmi ng Windows Embedded IR Applications”, DS00941

Other third-party programs may be used to communicate with the MCP215X Data Logger Demo Board, though these methods will not be discussed in this document. If additional information is desired, refer to the MCP2140 IrDA Sensor Demo Bo ar d Use r’s Guid e ( DS5 14 87 ).

Installation and Operation

for Embedded

XP for

St an da rd Wir ele ss Te mper a tur e

 2004 Microchip Technology Inc. DS51516A-page 23

MCP215X Data Logger Demo Board User’s Guide

2.4.1 Running the 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

Send File

1. The Connect button attempts to establish a connection to the 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.

2.4.1.2 RUNNING THE DEMO USING THE APPLICATION NOTE AN888 PROGRAM

After saving the AN888 application program to your PC’s hard drive, the PC can communicate with the MCP215X Data Logger Demo Board. Section 2.4.1.2.1 “Steps to Operate the Vendi ng 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 T r ansfer De mo” 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 Machi ne Demo

The vending machine demo is shown by following the steps in Table 2-4.

TABLE 2-4: VENDING MACHINE DEMO - PALM™ PDA

Step Action Result

1 Pla ce both devi ces on a flat surfa ce about 25 cm (10”)

apart, and with the IR ports facing each other

2 On the MCP215X Data Logger Demo Board:

Ensure that jumpers JP1 and JP2 are shorted (closed position).

3 On the MCP215X Data Logger Demo Board:

Ensure that jumper JP7 is shorted (closed position).

4 On the 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 Micr oc hip d eve lopment 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.

5 On the 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 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 Swit ch 3 un til the c and y counter displays

12. For demonstration purposes, it is nice when the two counter values are different.

—

On the 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 contro l signals (CTS, RTS, CD, RI and DSR) will be of f. Also, the RD7 and RD6 LEDs will be on.

On the MCP215X Data Logger Demo Board:

This causes the vending machi ne prog ram 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.

—

Installation and Operation

 2004 Microchip Technology Inc. DS51516A-page 25

MCP215X Data Logger Demo Board User’s Guide

TABLE 2-4: VENDING MACHINE DEMO - PALM™ (CONTINUED)PDA

Step Action Result

9 On the PDA:

Tap on the Read Data button.

10 On the 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.

11 On the PDA:

Tap on the Read Data button.

12 On the PDA:

Tap on the Clear Data button.

13 On the PDA:

In the Query box, tap the Yes button.

14 Step 10 through Step 13 may be repeated. — 15 On the PDA:

Tap on the Disconnect button.

On the 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.

—

On the 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 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 se con d l ater, 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 “N umber of C andies 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 Data Logger Demo Board:

The CD and the CTS LEDs will turn off.

DS51516A-page 26  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 T able 2-5.

TABLE 2-5: 250-BYTE S -> P DATA TRANSFER DEMO - PALM™ PDA

Step Action Result

1 Place both devices on a flat surface ab out 25 cm (10”)

apart, with the IR ports facing each other.

2 On the MCP215X Data Logger Demo Board:

Ensure that jumpers JP 1 an d JP2 are s ho rted (closed position).

3 On the MCP215X Data Logger Demo Board:

Ensure that jumper JP7 is shorted (closed position).

4 On the 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 Micr oc hip d eve lopment 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.

5 On the MCP215X Data Logger Demo Board:

Depress Switch 2 and Swi tch 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.

9 On the PDA:

Tap on the number (5) button.

10 On the PDA:

Tap on the Done button.

—

On the MCP215X Data Logger Demo Board:

The green power LED (D1 0) 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 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 to the 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 w ind ow. The number that was typed is shown on the “TX Data (ASCII) =” line.

 2004 Microchip Technology Inc. DS51516A-page 27

MCP215X Data Logger Demo Board User’s Guide

TABLE 2-5: 250-BYTE S -> P DATA TRANSFER DEMO - PALM™ (CONTINUED)PDA

Step Action Result

11 On the MCP215X Data Logger Demo Board:

Depress Switch 2 or Switch 3 to select which flavor of the transmit program is executed.

12 On the PDA:

Tap on the Send Byte button.

13 On the PDA:

Tap on the Show button.

14 On the PDA:

Tap on the OK button.

15 On the PDA:

Tap on the Reset button.

16 On the PDA:

In the Query window, tap on the Yes button.

17 Step 8 through Step 16 may be repeated. — 18 On the PDA:

Tap on the Disconnect button.

On the MCP215X Data Logger Demo Board:

If SW2 is depressed, the Host Controller will only transmit data to the MCP2150 while the CTS signal is low. The LCD will indicate that the 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 dat a to the MCP2150 whe n the C TS signal goes low. The LCD will indicate that the MCP215X Data Logger Demo Board is waiting to receive a data byte from the Primary device.

On the MCP215X Data Logger Demo Board:

The CD LED will turn on (the IR link is now open) and the CTS LED will strobe rapidly before retu rning 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 will return to the routine used to s elect 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:

This opens the trace buffer window. The receiv ed data table should be in the window.

On the PDA:

This closes the trace buffer window.

On the PDA:

This will open a query window that asks “Reset Trace Buffer, Are You Sure”.

On the PDA:

This clears the contents of the trace buffer. Trace shows “0 Bytes”.

On the PDA:

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 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 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. 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 Dat a 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 Data Logger Demo Board User’s Guide

2.4.2.2 RUNNING THE DEMO USING THE APPLICATION NOTE 926 PROGRAM After saving the AN941 application program to your PC’s hard drive, the PC can

communicate with the 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 Trans- fer 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 Machi ne 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 Place both devices on a flat su rface a bout 25cm (10”)

apart and with the IR ports facing each other.

2 On the MCP215X Data Logger Demo Board:

Ensure that jumpers JP1 an d JP2 are shorted (closed position).

3 On the MCP215X Data Logger Demo Board:

Ensure that jumper JP7 is shorted (closed position).

4 On the 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.

5 On the MCP215X Data Logger Demo Board:

Depress Switch 2 (SW2).

6 On the PDA:

Start the IrDA

7 On the PDA:

Tap on the Connect button.

Demo program.

—

On the MCP215X Data Logger Demo Board:

The green power LED (D10) will turn on, the DTR LED will be on, whi le all the other UAR T Flow Control signals (CTS, RTS, C D, RI an d DSR) wil l be of f. Als o the RD7 and RD6 LEDs will be on.

On the MCP215X Data Logger Demo Board:

This causes the vending machi ne prog ram to be executed.

On the PDA:

The screen will display the IrDA Demo program window, with the “Device ID” line displaying “Gener ic 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 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.

DS51516A-page 30  2004 Microchip Technology Inc.

Installation and Operation

TABLE 2-6: VENDING MACHINE DEMO - POCKET PC (CONTINUED)

Step Action Result

8 On the MCP215X Data Logger Demo Board:

Switch 2 (SW2) increments the soda cou nte r, and Switch 3 (SW3) increments the candy counter. The value of the candy an d soda counters wi ll be display ed on the LCD. Depress Switch 2 until the soda counter displays 7 and depress Switch 3 unti l the ca n dy cou nte r dis pl ay s

12. For demonstration purposes, it is nice when the two counter values are differe nt.

9 On the PDA:

Tap on the Read Data button.

10 On the 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.

11 On the PDA:

Tap on the Read Data button.

12 On the PDA:

Tap on the Clear Data button.

13 On the PDA:

Tap on the Read Data button.

14 Step 10 through Step 13 may be repeated. — 15 On the PDA:

Tap on the Disconnect button.

—

On the 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 value displayed on the demo board LCD.

—

On the 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 MCP215X Data Logger Demo Board:

The LCD module will update the candy and soda counter values to 0.

On the 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 value displayed on the demo board LCD.

On the PDA:

This will disconnect (close) the IR link. When the IR link is closed, the prog ram window w ill be upda ted 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, wi ll display “Discovery Mode”.

On the MCP215X Data Logger Demo Board:

The CD and the CTS LEDs will turn off.

 2004 Microchip Technology Inc. DS51516A-page 31

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 T able 2-7.

TABLE 2-7: 250-BYTE S -> P DATA TRANSFER DEMO - POCKET PC

Step Action Result

1 Place both devices on a flat surface ab out 25 cm (10”)

apart and with the IR ports facing each other.

2 On the MCP215X Data Logger Demo Board:

Ensure that jumpers JP 1 an d JP2 are s ho rted (closed position).

3 On the MCP215X Data Logger Demo Board:

Ensure that jumper JP7 is shorted (closed position).

4 On the 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.

5 On the MCP215X Data Logger Demo Board:

Depress Switch 2 and Swi tch 3 (SW2 + SW3) simultaneously.

6 On the PDA:

Start the IrDA

7 On the PDA:

Tap on the Connect button.

Demo program.

—

On the MCP215X Data Logger Demo Board:

The green power LED (D 10) will turn on, t he DTR L ED 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 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 to the 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 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.

DS51516A-page 32  2004 Microchip Technology Inc.

Installation and Operation

TABLE 2-7: 250-BYTE S -> P DATA TRANSFER DEMO - POCKET PC (CONTINUED)

Step Action Result

8 On the MCP215X Data Logger Demo Board:

Depress Switch 2 or Switch 3 to select which flavor of the transmit program is executed.

9 On the PDA:

Tap on the Get File button.

10 On the PDA:

Tap on the Trace button.

11 On the PDA:

Tap on the Clear button.

12 On the PDA:

Tap on the Close button. 13 Step 8 through Step 12 may be repeated. — 14 On the PDA:

Tap on the Disconnect button.

On the MCP215X Data Logger Demo Board:

If Switch SW2 is depressed, then the Host Controller will only transmit data to the MCP2150 while the CTS signal is low. The LCD will indicate that the 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 when the CTS signal goes low. The LCD will indicate that the MCP215X Data Logger Demo Board is waiting to receive a data byte from the Primary device.

On the MCP215X Data Logger Demo Board:

The CTS LED will strob e rapi dly and th en re turn to the normal rate. The second line of the LCD will display the text "Transmi tting" and, once the d ata table h as been sent , the text will change to "TX Complete". After approx. 1 second, the PIC16F877 will return to the routine used to s elect 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:

This opens the trace buf fer win dow. Y ou may sc roll up and down in this window to view the received data.

On the PDA:

This clears the data that is in the trace buffer window.

On the PDA:

This closes the trace buffer window.

On the PDA:

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 di splay “Normal Disconnect Mode” and then, after a couple of seconds, will display “Discovery Mode”.

On the MCP215X Data Logger Demo Board:

The CD and the CTS LEDs will turn off.

 2004 Microchip Technology Inc. DS51516A-page 33

MCP215X Data Logger Demo Board User’s Guide

2.4.3 Running the 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 2-1 1 identifies the buttons while the text below describes the operation of the button.

FIGURE 2-11: WINDOWS XP PC WINDOW

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 Dat a 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

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 application program to your PC’s hard drive, the program needs to be launched. This PC program communicates with the MCP215X D at a Logger Demo Board. Se ction 2.4.3.2.1 “Step s to Operate the V e nding Machine Demo

- Windows XP” discusses how to operate the vending machine dem o, while Section

2.4.3.2.2 “Steps to Operate the 250-byte S -> P Data Tra nsfer Demo - Windows

XP” discusses how to operate the 250-byte Secondary device (S) to Primary device

(P) data trans f er 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

Step Action Result

1 Place both devices on a flat surface ab out 25 cm (10”)

apart, with the IR ports facing each other.

2 On the MCP215X Data Logger Demo Board:

Ensure that jumpers JP 1 an d JP2 are s ho rted (closed position).

3 On the MCP215X Data Logger Demo Board:

Ensure that jumper JP7 is shorted (closed position).

4 On the PC:

Run the IrDA Demo.exe program.

5 On the 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 Micr oc hip d eve lopment 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.

6 On the PC:

If the PC is configured to show the IR icon in the system tray, a single IR LED will be displayed. Place the mouse cursor over this icon.

7 On the MCP215X Data Logger Demo Board:

Depress Switch 2 (SW2).

8 In the IrDA standard demo PC program window:

Depress and release the Connect button.

—

On the PC:

The program is searching for an IrDA st andard device .

On the MCP215X Data Logger Demo Board:

The green power LED (D 10) will turn on, t he DTR L ED will be on, while all the other UART flow control signals (CTS, RTS, CD, RI and DSR) are off. The RD7 and RD6 LEDs will also be on.

In the IrDA

The program should indicate that it has found an IrDA standard device, called “Generic IrDA”.

On the PC:

The message “Generic IrDA is in range” will be displayed; “Generic IrDA” is the device ID of the MCP2150.

On the MCP215X Data Logger Demo Board:

This causes the vending machi ne prog ram to be executed.

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 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.

standard demo PC program window:

 2004 Microchip Technology Inc. DS51516A-page 35

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 mo use cursor over this ico n.

10 On the 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 Swi tch 3 un til the candy counter displa ys

12. For demonstration purposes, it is nice when the two counter values are different.

11 In the IrDA standard demo PC program window:

Depress and release the Read Data button.

12 On the 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.

13 In the IrDA standard demo PC program window:

Depress and release the Read Data button.

14 Step 12 and then Step 13 may be repeated. — 15 In the IrDA standard demo PC program window:

Depress and release the Disconnect button.

16 If the PC is configured to show the IR icon in the

system tray, a single IR LED will be displayed.

On the PC:

The message “Wireless link with Generic IrDA at 1 15200 bps” will be displayed. This sh ows that a lin k 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.

—

On the MCP215X Data Logger Demo Board:

The CTS LED will strob e rapi dly and th en re turn 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 Data Logger Demo Board.

—

On the MCP215X Data Logger Demo Board:

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 valu e disp layed on the de mo b oard 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 Data Logger Demo Board.

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 Data Logger Demo Board:

The CD and the CTS LEDs will turn off. —

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

Step Action Result

1 Place both devices on a flat surface ab out 25 cm (10”)

apart, with the IR ports facing each other.

2 On the MCP215X Data Logger Demo Board:

Ensure that jumpers JP 1 an d JP2 are s ho rted (closed position).

3 On the MCP215X Data Logger Demo Board:

Ensure that jumper JP7 is shorted (closed position).

4 On the PC:

Run the IrDA Demo.exe program.

5 On the 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 Micr oc hip d eve lopment 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, as well as the directions for demo program selection.

6 On the PC:

If the PC is configured to show the IR icon in the system tray, a single IR LED will be displayed. Place the mouse cursor over this icon.

7 On the MCP215X Data Logger Demo Board:

Depress Switch 2 and Swi tch 3 (SW2 + SW3) simultaneously.

8 On the MCP215X Data Logger Demo Board:

Depress Switch 2 and Swi tch 3 to select which flavor of the program is executed.

—

On the PC:

The program is searching for an IrDA device.

On the MCP215X Data Logger Demo Board:

The green power LED (D1 0) 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 of f. Al so the RD7 and RD6 LEDs will be on.

In the IrDA Demo PC program window:

The program should indicate that it has “found” an IrDA standard device, called “Generic IrDA”.

On the PC:

The message “Generic IrDA is in range” will be displayed, “Generic IrDA” is the device ID of the MCP2150.

On the MCP215X Data Logger Demo Board:

1. CTS (transmit data bytes while CTS is low)

2. 64 bytes (transmit 64 data bytes when CTS goes low)

On the MCP215X Data Logger Demo Board:

standard

 2004 Microchip Technology Inc. DS51516A-page 37

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 mo use cursor over this ico n.

11 In the IrDA standard demo PC program window:

In the TX Data (ASCII) entry box, type in any number (such as “5”).

12 In the IrDA standard demo PC program window:

Depress and release the Send Byte button.

13 Step 7 through Step 12 may be repeated. — 14 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.

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 Data Logger Demo Board:

The CD LED will turn on and the CTS LED will flash. This indicates that an IR link is est abl is hed 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.

—

On the MCP215X Data Logger Demo Board:

The CTS LED will strob e rapi dly and th en re turn to the normal rate, with the PORTD LED s showing the ASCII value for the data byte transmitted (“5” = 0x35). After approx. 1 second, the PIC16F877 will return to the routine used to s elect 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 Data Logger Demo Board. This table is shown in

Appendix D. “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 Data Logger Demo Board:

The CD and the CTS LEDs will turn off. —

DS51516A-page 38  2004 Microchip Technology Inc.

Installation and Operation

2.5 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 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 IrDA Protocol St ack Controller Device

This demo board highlights the MCP2150 or the MCP2155 IrDA Protocol Stack Controller device (U2) to demonstrate the implementation of an IR port in an embedded system application. The 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 T able 2-10, while Table 2-1 1 shows these signals for the MCP2155. The operation of the host UART interface is slightly different for the MCP2150 and the MCP2155. Further information on the Host Controller interface may be obtained from the device documentation:

• MCP2150 data sheet, “IrDA Applications”, (DS21655)

• MCP2155 data sheet, “IrDA Applications”, (DS21690)

• Application Note 858, “Interfacing the MCP215X to a Host Controller”, (DS00858)

Standard Protocol Stack Controller Supporting DTE

Standard Protocol Stack Controller Supporting DCE

 2004 Microchip Technology Inc. DS51516A-page 39

MCP215X Data Logger Demo Board User’s Guide

TABLE 2-10: MCP2150 HOST UART INTERFACE PINS

Name

TX 8 I TTL Asynchronous receive; fro m Host Cont roller UAR T. RX 9 O — Asynchronous transmit; to 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 has

DTR 12 I TTL Data Terminal Ready. The value of this pin is

CTS 13 O — Clear-to-Send. Indicates that the MCP2150 is

RTS 14 I TTL Request-to-Send. Indicates that a Host Controller

Number

(PDIP)

Type

Buffer

Type

Description

completed reset:

1 = MCP2150 is initialized. 0 = MCP2150 is not initialized.

ignored once the MCP2150 is initialized. It is recommended that this pin be connected so that the voltage level is either V 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.

ready to receive dat a form the Host Con troller. This signal is locally emulated and not related to the CTS/RTS bit of the IrDA

1 = Host Controller should not send data. 0 = Host Controller may se nd data.

is ready to receive data from the 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.

SS or VCC.

standard Primary de vice.

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 Carrier Detect. Indicates that the 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).

Legend: TTL = TTL compatible input ST = Schmitt Trigger input with CMOS levels

I = Input O = Output

DS51516A-page 40  2004 Microchip Technology Inc.

Installation and Operation

TABLE 2-11: MCP2155 HOST UART INTERFACE PINS

Name

TX 8 I TTL Asynchronous receive; fro m Host Cont roller UAR T. RX 9 O — Asynchronous transmit; to Host Controller UART. RI 10 I TTL Ring Indicator. The state of this bit is

DSR 11 O — Data Set Ready. Indicates that the MCP2150 has

DTR 12 I TTL Data Terminal Ready. Indicates that the embedded

CTS 13 O — Clear-to-Send. Indicates that the MCP2150 is

RTS 14 I TTL Request-to-Send. Indicates that a Host Controller

CD 19 I ST Carrier Detect. The state of this bit is communi-

Legend: TTL = TTL compatible input ST = Schmitt Trigger input with CMOS levels

Note 1: The state of the DTR output pin does not reflect the state of the DTR bit of the IrDA

Number

(PDIP)

I = Input O = Output

standard Primary device.

Type

Buffer

Type

communicated to the IrDA device.

1 = No Ring Indicate Present. 0 = Ring Indicate Present.

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).

device connected to the 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.

ready to receive dat a form the Host Con troller. 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 se nd data.

is ready to receive data from the 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.

cated to the IrDA standard Primary device via the IrDA standard CD bit.

1 = No Carrier Present. 0 = Carrier P resent.

Description

standard Primary

 2004 Microchip Technology Inc. DS51516A-page 41

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 IR INTERFACE PINS

Pin Name

TXIR 2 O — Asynchronous transmit to IrDA

RXIR 3 I ST Asynchronous receive from Infrared transceiver.

Legend: A = Analog P = Power

Number

(PDIP)

I = Input O = Output

Type

Buffer

Type

transceiver.

Description

standard

In addition to the signals described in Tables 2-10 through 2-12, the MCP215X RESET input is connected to the RESET output of the Host Controller (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 data sheet (DS21655) and the MCP2155 data sheet (DS21690)

2.5.2.1 MCP215X OPERATIO N The MCP215X (U3) implements the 9-wire “cooked” service class in the IrCOMM Appli-

cation 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 allows the replacement of the serial cable with a wireless interface. The MCP215X implements the entire protocol layer, while the Host Controller (PIC16F877) talks to the MCP215X as if it were a serial port with flow control.

The 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 Connection Sequence Overview” 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.

DS51516A-page 42  2004 Microchip Technology Inc.

Installation and Operation

2.5.3 PICmicro® Microcontroller Functions

The MCP215X interfaces to the PIC16F877 (or 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 device is reset when the RESET push button is depressed.

The 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 is connected to a standard In-Circuit Serial Programming™ (ICSP™) 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 or MCP2155 to be accessed.

input of the PIC16F877 is connected to the RESET push button switch. The

FIGURE 2-12: SIGNAL INTERFACE HEADER J4

+ 5V

GND

Enable

BAUD1

BAUD0

RESET

CTS

DTR

DSR

The silk-screen is incorrect: CTS and RTS signals are reversed

RTS

 2004 Microchip Technology Inc. DS51516A-page 43

MCP215X Data Logger Demo Board User’s Guide

2.5.6 Using the Integrated Optical Transceiver (U5)

T o 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 V

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 Data Logger Demo Board via the connection header of J1 and J5 (see Figure 2-13). The integrated optical transceiver on the 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 V transceiver (U5)).

2. Remove Jumper on JP1. If jumper is re mo ve d , en su re t h at t he sh or t be t w ee n t w o p i ns (o n bo t tom si d e o f board) has been cut.

3. Remove Jumper on JP2. If jumper is re mo ve d , en su re t h at t he sh or t be t w ee n t w o p i ns (o n bo t tom si d e o f board) has been cut.

4. Plug the discrete optical transc ei ve r boa rd into He ade r J1 and J5.

Now the optical transceiver daughter board should be operational.

DD to the integrated optical transceiv er (U5))

DD from the integrated optical

FIGURE 2-13: OPTICAL TRANSCEIVER DAUGHTER BOARD INTERFACE

HEADER (J1 AND J5)

VSS

RXIR

TXIRJ1VDD

VSS

RXPD

RXPDREF

VDD

DS51516A-page 44  2004 Microchip Technology Inc.

DEMO BOARD USER’S GUIDE

Appendix A. Schematic and Layouts

A.1 INTRODUCTION

This appendix contains the following schematics and layouts for the MCP215X Data Logger Demo Board:

• Board Schematic - Digital circuitry

• Board Schematic - Analog circuitry

• Board - Top Layer

• Board - Bottom Layer

• Board - Ground Layer

• Board - Power Layer

A.2 SCHEMATICS AND PCB LAYOUT

Figure A-2 shows the 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.

MCP215X DATA LOGGER

FIGURE A-1: LAYER ORDER

Top Layer

Bottom Layer

 2004 Microchip Technology Inc. DS51516A-page 45

MCP215X Data Logger Demo Board User’s Guide

FIGURE A-2: MCP215X DATA LOGGER DEMO BOARD SCHEMATIC

RC6RXCTS

9V Battery

103-00032

Number RevisionSize

MCP2150 PICDEM Bd.

Title

Date: 20-Sep-2004 Sheet of

File: C:\Protel Projects\Mark Palmer\MCP2150 PICDEM Bd\PICDEM 2150.ddbDrawn By:

+5V

JP7

R27

R26

0.1uF

+5V

CTS

RTS

DTR

DSR

RESET 215X

Baud 0

Baud 1

RTS

DTR

DSRCDRI

Reset

Baud 0

Baud 1EN+5V

(RC0)

RD0

RESET 215X

RB0

(RC1)

GND

RTS

CTS

RA0

LCD EN

LCD R/W

LCD RS

RA4

RA5

6 PIN CONN

RD1

RD2

RD3

RD4

RD5

BAUD0

BAUD1

8 PIN CONN

DSR

DTR

SCL

SDA

RC5

(RC3)

(RC4)

(RC6)

(RC7)

8 PIN CONN

RB1

RB2

RB3

ICD CLK

ICD DATA

8 PIN CONN

RD5

RD4

RD3

RD2

RD1

BAUD1

BAUD0

R10

470

R11

470

R12

470

R13

470

R14

470

LED

RD7

RD6

RD5

LDC1

R36

300

VR2

POT

R35

10K

+5V

100

+5V

0.1uF

+5V

10K

+5V

RESET

LED

RD4

RD3

RD2

RB0

RB1

RB2

RB3

DB0

DB1

DB2

DB3

DB4

DB5

DB6

DB7

R/W

VEE

VCC

GND

GND1

LCD EN

LCD R/W

LCD RS

+5V

C11

0.1uF

CTS

RE1

RE2

VDD

+5V

0.1uF

R18

VR1

+5V

5K POT

RD0

R15

470

R16

470

R20

LED

RD1

RD0

LCD

C10

+5V

RTS

BAUD1

BAUD0

RD5

RD4

RD3

RD2

RE0

RD2

RD3

RD4

RD5

RD6

RD7

MCLR

RA0

RA1

RA2

RA3

RA4

RA0

RA4

NMCLR

LCD EN

LCD R/W

LCD RS

R17

470

R19

470

+5V

470

LED

JP4

JUMPER

+5V

R23

R37

0.1uF

Vcc

4.7K

+5V

4.7K

+5V

RD1

RD0

RC5

RC6

RC7

RD0

RD1

RA5

RB0

RB1

RB2

RA5

RB0

RB1

RB2

470

4.7K

+5V

4.7K

SW3

R25

10K

+5V

2.2K

RESET 215X

LED

470

R38

470

SCL

SDA

SCL

RC3

RC4

RB3

RB4

RB3

SW2

+5V

Baud 0

Baud 1

+5V

Optional

GND

24LC256

DIP

SDA

DTR

OSC1

RESET 215X

DSR

RC0

RC1

RC2

OSC1

OSC2

Vss

RB5

RB6

RB7

ICD CLK

ICD DATA

0.1uF

+5V

2.2K

+5V

R34

JP3

2.2K

+5V

2.2K

R30

DSR

R29

+5V

2.2K

R28

LED

BAUD0

TXIR

RESET

VDD

BAUD1

R24

JP6

JP5

OSC1

CLK

VDD

+5V

GND

40 PIN DEVICE

+5V

NMCLR

+5V

2.2K

+5V

R33

2.2K

LED

R32

RTS

2.2K

LED

R31

CTS

LED

DTR

LED

Baud 0

Baud 1

LED

RXPD

LED

DSR

RXIR

RXPDREF

+5V

4 PIN CONN

VSS

C14

+5V

MCP2150

11.0592 MHZ

4.7K

6 PIN CONN

4 PIN CONN

JP2

JUMPER

JP1

C13

C12

22pF

JUMPER

18pF

+5V

VREG

D11

0.1uF

Gnd

9VDC

+5v

Vin

D12

9VDC CONN

GND

C15

1N914

470

220 uF

BRIDGE1

TFDS4500

D10

LED

C16

220uF

BT1

DTR

CTS

RTS

CTS

DTR

OSC1

OSC2

0.1uF

R22

R21

+5V

XTAL

ICD DATA

ICD CLK

DS51516A-page 46  2004 Microchip Technology Inc.

FIGURE A-3: MCP215X DATA LOGGER DEMO BOARD LAYOUT - TOP LAYER

 2004 Microchip Technology Inc. DS51516A-page 47

MCP215X Data Logger Demo Board User’s Guide

FIGURE A-4: MCP215X DATA LOGGER DEMO BOARD LAYOUT - BOTTOM LAYER

DS51516A-page 48  2004 Microchip Technology Inc.

MCP215X DATA LOGGER

DEMO BOARD USER’S GUIDE

Appendix B. Bill-Of-Materials (BOM)

TABLE B-1: BILL-OF-MATERIALS (BOM)

Qty Reference Description Manufacturer Part Number

9 C1,C2,C3,C4,

C5,C8,C9,C10, C11

2 C12,C13 Capacitor, 18 pF, 100V, 5%, MONOLITH

1 C14 Capacitor, 22 pF, 100V, 5%, MONOLITH

2 C15,C16 Capacitor, 220 µF, 25V, Alum Lytic Radial Panasonic - ECG ECA-1EM221 1 D12 Diode, SS, HI COND, 100V, 200 mA,

8 R31,R23,R29,R33

R28,R30,R32,R34 5 R3,R4,R5, R6,R 7 Resistor, 4.7 kΩ, 1/4W 5%, Carbon Film Yageo America CFR-25JB-4K7 3 R8,R25,R3 5 Resistor, 10 kΩ, 1/4W, 5%, Carbon Film Yageo America CFR-25JB-10K 3 R21,R22,R 24 Resistor, 5.1 kΩ, 1/4W, 5%, Carbon Film Yageo America CFR-25JB-5K1 1 R26 Resistor, 47Ω, 1/4W, 5%, Carbon Film Yageo America CFR-25JB-47R 1 R27 Resistor, 22Ω, 1/4W, 5%, Carbon Film Yageo America CFR-25JB-22R 1 R9 Resistor, 100Ω, 1/4W, 5%, Carbon Film Yageo America CFR-25JB-100R 1 R36 Resistor, 300Ω, 1/4W, 5%, Carbon Film Yageo America CFR-25JB-300R 15 R1 ,R2,R1 0, R11,

R12, R13, R14,

R15, R16, R17,

R18, R19, R20,

R37,38 5 JP1,JP2,JP3,

JP4,JP7 3 JP5,JP6,RE Conn Header, 3POS, .100, VERT TIN Molex/Waldom

2 J1,J5 Conn Header, 4POS, .100, VERT TIN Molex/Waldom

1 RA Conn Header, 6POS, .100, VERT TIN Molex/Waldom

3 RB,RC,RD Conn Header, 8POS, .100, VERT TIN Molex/Waldom

3 JP1,JP2 JP4 SHUNT LP W/HANDLE 2POS 30AU AMP/Tyco Electronics 881545-2 1 BT1 Conn, PC VERT 9V SNAP-ON Keystone

1 J2 Conn, Power Jack, 2.5MM, PCB, CIRC CUI Inc PJ-102B 1 J3 Conn, Mod Jack, 6-6, R/A ,PCB, 50AU AMP/Tyco Electronics 520470-3 1 VR1 Pot, 5.0 kΩ, Thumbwheel Cerm ST Bourns Inc. 1 VR2 Do not populate Do not populate Do not populate 1 J4 Conn Header, 14POS, .100, VERT TIN Molex/Waldom

Capacitor, Ceramic, MONO, .1 µF, 50V 10%

Ceramic

DO-35 RES 2.2 kΩ, 1/4W 5%, Carbon Film Yageo America CFR-25JB-2K2

Resistor, 470Ω, 1/4W, 5%, Carbon Film Yageo America CFR-25JB-470R

Conn Header, 2POS, .100, VERT TIN Molex

Panasonic

Panasonic - ECG ECU-S2A180JCA

Panasonic - ECG ECU-S2A220JCA

Fairchild Semiconductor

Electronics Corp

Electronics

Electronics Corp

- ECG ECU-S1H104KBB

1N914TR

22-28-4020

22-28-4030

22-28-4040

22-28-4060

22-28-4080

968

3352W-1-502

22-28-4140

/Waldom®

 2004 Microchip Technology Inc. DS51516A-page 49

MCP215X Data Logger Demo Board User’s Guide

TABLE B-1: BILL-OF-MATERIALS (BOM) (CONTINUED)

Qty Reference Description Manufacturer Part Number

1 U1 High Performance Microcontrollers with

10-bit A/D

1 U1 Socket 40 Pin, IC Socket, GOLD, .600 Mill-Max

1 U2 256K I2C™ CMOS Serial EEPROM Microchip

1 U2 socket 8-Pin, IC Socket, GOLD, .300 Mill-Max

1 U3 MCP2150 Microchip

1 U3 socket 18-Pin, IC Socket, GOLD, .300 Mill-Max

1 U4 IC Regulator, Positive 5V, TO-220 National

1 U5 TFDS, LED, IR Serial Infrared T ran sc eiv er

Module Side View

1 D11 Rectifier Bridge, 1.5A, 200V, WOG General

1 LDC1 16 X 2 Chip On Glass LCD Display FEMA Electronics

1 D10 Led, SS, Green, DIFF, RA, PCB, 3 MM Fairchild

15 RD0-RD7,

Led ,SS, Red, Diffused ,PCB, 3 MM Fairchild CD,CTS RTS,DSR,TX, RX,RI,DTR,

3 RESET

Switch, Tact, 6 MM, MOM, 100GF Omron Electronics, SW2,SW3

1 Y2 Oscillator, 20.000 MHZ, TTL ECS Inc. ECS-100A-200 1 Y2 Socket Oscillator, Socket, Full Size, 4,Pin Aries Electronics 1107741 1 Y3 Crystal, 11.0592 MHZ, 20 pF, Load Cap CTS-Frequency

2 Y3 socket pins Pin Recpt, .015/.025 DIA, 0667 SER Mill-Max

Microchip Technology Inc.

Manufacturing Corp.

Technology Inc.

Manufacturing Corp.

Technology Inc.

Manufacturing Corp.

Semiconductor™

Vishay

Semiconductor

P-Tec Corp

Optoelectronics Group

-ECB Div

Inc

Controls

Manufacturing Corp.

PIC18F452-I/P

110-93-640-41-001000

24LC256

110-93-308-41-001000

MCP2150-I/P

110-93-318-41-001000

LM340T-5.0

TFDS4500-TR3

W02G

CG-1621-SGR1C PCOG1602C-GNFD-C

MV5464MP4B

MV5064MP4B

B3F-1000

ATS111

0667-0-15-01-3027100

DS51516A-page 50  2004 Microchip Technology Inc.

MCP215X DATA LOGGER

DEMO BOARD USER’S GUIDE

Appendix C. MCP215X Connection Sequence Overview

FIGURE C-1: HIGH-LEVEL MCP215X CONNECTION SEQUENCE

Primary Device MCP215x

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

Discovery

Send SNRM Command

(w/ parameters and

connection address)

Open channel for IAS Queries

(Secondary Device)

No Response

XID Response in tim es lot y (claiming this timeslot)

(MCP215x always claims timeslot 2)

No Response to these XIDs No Response to Broadcast ID

UA response with parameters using connect address

Send IAS Queries

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

Shutdown link

Return to NDM state

Confirm channel open for IAS

Provide IAS responses

Confirm channel open for data

(MCP2150 CD pin driven Low, MCP2155 DSR pin driven Low)

Send Data or Status

Confirm shutdown (back to NDM state)

 2004 Microchip Technology Inc. DS51516A-page 51

MCP215X Data Logger Demo Board User’s Guide

NOTES:

DS51516A-page 52  2004 Microchip Technology Inc.

MCP215X DATA LOGGER

DEMO BOARD USER’S GUIDE

Appendix D. MCP215X 250-Byte Data Transmit Table

TABLE D-1: PIC16F877 250-BYTE DATA TRANSMIT TABLE

Line #

TXTBL DT D’250’ ; the first byte is the byte count ; 1 Characters

DT “12345678”, 0x0D, 0x0A ; 10 Characters

DT “2BCDEFGH”, 0x0D, 0x0A ; 10 Characters

DT “32345678”, 0x0D, 0x0A ; 10 Characters

DT “4bcdefgh”, 0x0D, 0x0A ; 10 Characters

DT “52345678”, 0x0D, 0x0A ; 10 Characters

DT “6BCDEFGH”, 0x0D, 0x0A ; 10 Characters

DT “72345678”, 0x0D, 0x0A ; 10 Characters

DT “8bcdefgh”, 0x0D, 0x0A ; 10 Characters

DT “92345678”, 0x0D, 0x0A ; 10 Characters

DT “ABCDEFGH”, 0x0D, 0x0A ; 10 Characters

DT “B2345678”, 0x0D, 0x0A ; 10 Characters

DT “Cbcdefgh”, 0x0D, 0x0A ; 10 Characters

DT “D2345678”, 0x0D, 0x0A ; 10 Characters

DT “EBCDEFGH”, 0x0D, 0x0A ; 10 Characters

DT “F2345678”, 0x0D, 0x0A ; 10 Characters

DT “1bcdefgh”, 0x0D, 0x0A ; 10 Characters

DT “22345678”, 0x0D, 0x0A ; 10 Characters

DT “3BCDEFGH”, 0x0D, 0x0A ; 10 Characters

DT “42345678”, 0x0D, 0x0A ; 10 Characters

DT “5bcdefgh”, 0x0D, 0x0A ; 10 Characters

DT “62345678”, 0x0D, 0x0A ; 10 Characters

DT “7BCDEFGH”, 0x0D, 0x0A ; 10 Characters

DT “82345678”, 0x0D, 0x0A ; 10 Characters

DT “9bcdefgh”, 0x0D, 0x0A ; 10 Characters

DT “a2345678”, 0x0D, 0x0A ; 10 Characters ; ; NOTE: 0x0D = Carriage Return, 0x0A = Line Feed ;

 2004 Microchip Technology Inc. DS51516A-page 53

WORLDWIDE SALES AND SERVICE

AMERICAS

Corporate Office

2355 West Chandler Blvd. Chandler, AZ 85224-6199 Tel: 480-792-7200 Fax: 480-792-7277 Technical Support: http://support.microchip.com Web Address: www.microchip.com

Atlanta

Alpharetta, GA Tel: 770-640-0034 Fax: 770-640-0307

Boston

Westford, MA Tel: 978-692-3848 Fax: 978-692-3821

Chicago

Itasca, IL Tel: 630-285-0071 Fax: 630-285-0075

Dallas

Addison, TX Tel: 972-818-7423 Fax: 972-818-2924

Detroit

Farmington Hills, MI Tel: 248-538-2250 Fax: 248-538-2260

Kokomo

Kokomo, IN Tel: 765-864-8360 Fax: 765-864-8387

Los Angeles

Mission Viejo, CA Tel: 949-462-9523 Fax: 949-462-9608

San Jose

Mountain View, CA Tel: 650-215-1444 Fax: 650-961-0286

Toronto

Mississauga, Ontario, Canada Tel: 905-673-0699 Fax: 905-673-6509

ASIA/PACIFIC

Australia - Sydney

Tel: 61-2-9868-6733 Fax: 61-2-9868-6755

China - Beijing

Tel: 86-10-8528-2100 Fax: 86-10-8528-2104

China - Chengdu

Tel: 86-28-8676-6200 Fax: 86-28-8676-6599

China - Fuzhou

Tel: 86-591-8750-3506 Fax: 86-591-8750-3521

China - Hong Kong SAR

Tel: 852-2401-1200 Fax: 852-2401-3431

China - Shanghai

Tel: 86-21-5407-5533 Fax: 86-21-5407-5066

China - Shenyang

Tel: 86-24-2334-2829 Fax: 86-24-2334-2393

China - Shenzhen

Tel: 86-755-8203-2660 Fax: 86-755-8203-1760

China - Shunde

Tel: 86-757-2839-5507 Fax: 86-757-2839-5571

China - Qingdao

Tel: 86-532-502-7355 Fax: 86-532-502-7205

ASIA/PACIFIC

India - Bangalore

Tel: 91-80-2229-0061 Fax: 91-80-2229-0062

India - New Delhi

Tel: 91-11-5160-8631 Fax: 91-11-5160-8632

Japan - Kanagawa

Tel: 81-45-471- 6166 Fax: 81-45-471-6122

Korea - Seoul

Tel: 82-2-554-7200 Fax: 82-2-558-5932 or 82-2-558-5934

Singapore

Tel: 65-6334-8870 Fax: 65-6334-8850

Taiwan - Kaohsiung

Tel: 886-7-536-4818 Fax: 886-7-536-4803

Taiwan - Taipei

Tel: 886-2-2500-6610 Fax: 886-2-2508-0102

Taiwan - Hsinchu

Tel: 886-3-572-9526 Fax: 886-3-572-6459

EUROPE

Austria - Weis

Tel: 43-7242-2244-399 Fax: 43-7242-2244-393

Denmark - Ballerup

Tel: 45-4450-2828 Fax: 45-4485-2829

France - Massy

Tel: 33-1-69-53-63-20 Fax: 33-1-69-30-90-79

Germany - Ismaning

Tel: 49-89-627-144-0 Fax: 49-89-627-144-44

Italy - Milan

Tel: 39-0331-742611 Fax: 39-0331-466781

Netherlands - Drunen

Tel: 31-416-690399 Fax: 31-416-690340

England - Berkshire

Tel: 44-118-921-5869 Fax: 44-118-921-5820

10/20/04

DS51516A-page 54  2004 Microchip Technology Inc.

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

TABLE 2-1: JUMPER DESCRIPTIONS AND SETTINGS

TABLE 2-2: DEMO PROGRAM SELECTION

FIGURE 2-5: PIC16F877 FIRMWARE FLOW - MAIN

TABLE 2-3: VENDING MACHINE COMMANDS

FIGURE 2-6: PIC16F877 FIRMWARE FLOW - VENDING MACHINE

FIGURE 2-7: PIC16F877 FIRMWARE FLOW - 250-BYTE S->P TRANSFER

FIGURE 2-8: PRIMARY DEVICE GUIS

2.4 RUNNING THE DEMOS

FIGURE 2-9: PALM PDA MAIN FORM

TABLE 2-4: VENDING MACHINE DEMO - PALM™ PDA

TABLE 2-5: 250-BYTE S -> P DATA TRANSFER DEMO - PALM™ PDA

FIGURE 2-10: POCKET PC PDA WINDOW

TABLE 2-6: VENDING MACHINE DEMO - POCKET PC

TABLE 2-7: 250-BYTE S -> P DATA TRANSFER DEMO - POCKET PC

FIGURE 2-11: WINDOWS XP PC WINDOW

2.5 MCP215X DATA LOGGER DEMO BOARD DESCRIPTION

Appendix A. Schematic and Layouts

A.1 INTRODUCTION

A.2 SCHEMATICS AND PCB LAYOUT

FIGURE A-1: LAYER ORDER

FIGURE A-2: MCP215X DATA LOGGER DEMO BOARD SCHEMATIC

FIGURE A-3: MCP215X DATA LOGGER DEMO BOARD LAYOUT - TOP LAYER

FIGURE A-4: MCP215X DATA LOGGER DEMO BOARD LAYOUT - BOTTOM LAYER

TABLE B-1: BILL-OF-MATERIALS (BOM)

Appendix C. MCP215X Connection Sequence Overview

FIGURE C-1: HIGH-LEVEL MCP215X CONNECTION SEQUENCE

Appendix D. MCP215X 250-Byte Data Transmit Table

TABLE D-1: PIC16F877 250-BYTE DATA TRANSMIT TABLE