MICROCHIP PICDEM 2 Plus User Guide

PICDEM™ 2 Plus

User’s Guide

 2004 Microchip Technology Inc. DS51275B

Note the following details of the code protection feature on Microchip devices:

• Microchip products meet the specification contained in their particular Microchip Data Sheet.

• Microchip believes that its family of products is one of the most secure families of its kind on the market today, when used in the
intended manner and under normal conditions.

• There are dishonest and possibly illegal methods used to breach the code protection feature. All of these methods, to our
knowledge, require using the Microchip products in a manner outside the operating specifications contained in Microchip's Data
Sheets. Most likely, the person doing so is engaged in theft of intellectual property.

• Microchip is willing to work with the customer who is concerned about the integrity of their code.

• Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their code. Code protection does not
mean that we are guaranteeing the product as “unbreakable.”

Code protection is constantly evolving. We at Microchip are committed to continuously impro ving the cod e protection features of our
products. Attempts to break Microchip’s code protection feature may be a violation of the Digital Millennium Copyright Act. If such acts
allow unauthorized access to your software or other copyrighted work, you may have a right to sue for relief under that Act.

Information contained in this publication regarding device
applications and the like is intended through suggestion only
and may be superseded by updates. It is your responsibility to
ensure that your application meets with your specifications.
No representation or warranty is given and no liability is
assumed by Microchip Technology Incorporated with respect
to the accuracy or use of such information, or infringement of
patents or other intellectual property rights arising from such
use or otherwise. Use of Microchip’s products as critical
components in life support systems is not authorized except
with express written approval by Microchip. No licenses are
conveyed, implicitly or otherwise, under any intellectual
property rights.

Trademarks

The Microchip name and logo, the Microchip logo, Accuron,
dsPIC, K

EELOQ, MPLAB, PIC, PICmic ro, PI C START,

PRO MATE and PowerSmart are registered trademarks of
Microchip Technology Incorporated in the U.S.A. and other
countries.

AmpLab, FilterLab, microID, MXDEV, MXLAB, PICMASTER,
SEEVAL, SmartShunt and The Embedded Control Solutions
Company are registered trademarks of Microchip Technology
Incorporated in the U.S.A.

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, PICtail, PowerCal,
PowerInfo, PowerMate, PowerTool, rfLAB, rfPIC, Select
Mode, SmartSensor, SmartTel and Total Endurance are
trademarks of Microchip Technology Incorporat ed in the
U.S.A. and other countries.

Serialized Quick Turn Programming (SQTP) is a service mark
of Microchip Technology Incorporated in the U.S.A.

All other trademarks mentioned herein are property of their
respective companies.

© 2004, Microchip Technology Incorporated, Printed in the
U.S.A., All Rights Reserved.

Printed on recycled paper.

Microchip re cei v ed I S O/T S - 16 949 : 20 02 qu ality system certificat io n f or
its worldwide headquarters, design and wafer fabrication facilities in
Chandler and Tempe, Arizona and Mountain View, California in October

2003. The Com pany’s quality sy stem proces ses and pro cedures are for
its PICmicro
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 devices, Serial

DS51275B-page ii  2004 Microchip Technology Inc.

Chapter 1. Introduction

1.1 Welcome ............. .. .............. .. ............. .. ............. ... ............. .. ............. ... ........... 1

1.2 PICDEM 2 Plus Demonstration Board ...........................................................2

1.3 Sample Dev ic e s ........... .. .. .............. .. ............. .. .............. ............. .. ............. .. ... 3

1.4 Sample Pro g ra m s .................... ............. .. .............. .. ............. .. .............. .. ......... 3

1.5 PICDEM 2 Plus User’s Guide .........................................................................4

1.6 Referenc e Doc u m e n t s ...... ... ............. .. ............. .. .............. .. ............. .. .............. 4

Chapter 2. Getting Started

2.1 PICDEM 2 Plus as a Stand-Alone Board –

Preprogram me d D e vice ............ ............. .. ............. ... ............. ............. .. ..... 5

2.2 PICDEM 2 Plus Used with an In-Circuit Emulator or

In-Circuit Debugger .......................................................................... ........6

Chapter 3. Tutorial

3.1 Tutorial Pr o g ra m O p e ra t io n ............ .. ............. ............. ... ............. ............. .. ..... 7

3.2 Source Code and Application Notes ..............................................................9

PICDEM™ 2 PLUS USER’S GUIDE

Table of Contents

Appendix A. Hardware Detail

A.1 Processo r Sockets ......... ............. .............. .. ............. .. .............. .. ............. .. ... 11

A.2 Display ................ ............. ... ............. .. ............. .. .............. .. ............. .. ............ 11

A.3 Power Supp ly ...... ............. ... ............. ............. .. .............. .. ............. ............. .. . 1 1

A.4 RS-232 Serial Port ........................................................ ...............................11

A.5 Switches ..................... .. ............. .. .............. .. ............. .. .............. .. ............. .. ... 12

A.6 Oscillato r O p tions ............. ... ............. ............. .. .............. .. ............. ............. .. . 1 2

A.7 Analog In pu t ............................ ............. .. .............. .. ............. ............. ... ......... 12

A.8 ICD Connector ............................... ..............................................................12

A.9 Temperatu re Sensor ...... ............. ... ............. .. ............. ... ............. ............. .. ... 12

A.10 Serial EEPROM .........................................................................................12

A.11 LCD .............................. ............. ... ............. .. ............. .............. .. ............. .. ... 12

A.12 Sample D ev i ce s .. ... .. ............. .. ............. ... ............. .. ............. ... ............. .. ..... 13

A.13 Board Layout and Schematics ....... .. ............. .. .............. .. ............. .. ............ 14

Index..............................................................................................................................17

Worldwide Sales and Service ....................................................................................18

 2004 Microchip Technology Inc. DS51275B-page iii

PICDEM™ 2 Plus User’s Guide

NOTES:

DS51275B-page iv  2004 Microchip Technology Inc.

1.1 WELCOME

Thank you for purchasing the PICDEM 2 Plus demonstration board from Microchip
Technology Incorporated. The PICDEM 2 Plus is a simple board which demonstrates
the capabilities of the 18, 28 and 40-pin PIC16 and PIC18 devices.

The PICDEM 2 Plus can be used stand-alone with a programmed part, with an in-circuit
emulator (e.g., MPLAB
Sample programs are provided to demonstrate the unique features of the supported
devices.

The PICDEM 2 Plus Kit comes with the following:

1. PICDEM 2 Plus Demonstration Board (Figure 1-1)

2. Sample devices

3. CD-ROM, which contains:

If you are missing any part of the kit, please contact your nearest Microchip sales office
listed in the back of this publication for help.

PICDEM™ 2 PLUS USER’S GUIDE

Chapter 1. Introduction

®

ICE) or with an in-circuit debugger (e.g., MPLAB ICD 2).

a) Sample programs
b) PICDEM 2 Plus Demonstration Board User’s Guide
c) Application Notes

 2004 Microchip Technology Inc. DS51275B-page 1

PICDEM™ 2 Plus User’s Guide

1.2 PICDEM 2 PLUS DEMONSTRATION BOARD

The PICDEM 2 Plus demonstration board has the following hardware features:

1. 18, 28 and 40-pin DIP sockets. (Although three sockets are provided, only one

device may be used at a time.)

2. On-board +5V regulator for direct input from 9V, 100 mA AC/DC wall adapter or

9V battery, or hooks for a +5V , 100 mA regulated DC supply.

3. RS-232 socket and associated hardware for direct connection to an RS-232

interface.

4. In-Circuit Debugger (ICD) connector.

5. 5 KΩ pot for devices with analog inputs.

6. Three push button switches for external stimulus and Reset.

7. Green power-on indicator LED.

8. Four red LEDs connected to PORTB.

9. Jumper J6 to disconnect LEDs from PORTB.

10. 4 MHz canned crystal oscillator.

11. Unpopulated holes provided for crystal connection.

12. 32.768 kHz crystal for Timer1 clock operation.

13. Jumper J7 to disconnect on-board RC oscillator (approximately 2 MHz).

14. 32K x 8 Serial EEPROM.

15. LCD display.

16. Piezo buzzer.

17. Prototype area for user hardware.

18. Microchip TC74 thermal sensor.

DS51275B-page 2  2004 Microchip Technology Inc.

FIGURE 1-1: PICDEM 2 PLUS HARDWARE

7

9

2

13

Introduction

8

15

3

14

4

16

1.3 SAMPLE DEVICES

Two FLASH devices are included. The device types may change, but will generally
include PIC16 and PIC18 40-pin DIP devices.

11

12

18

10

5

17

1

2

6

1.4 SAMPLE PROGRAMS

The PICDEM 2 Plus Kit includes a CD-ROM with sample demonstration programs.
These programs may be used with the included sample devices, with an In-Circuit
Emulator (ICE) or with an In-Circuit Debugger (ICD). For each type of device (PIC16 or
PIC18), demo source code (several ASM files) and compiled code (one Hex file) are
provided.

 2004 Microchip Technology Inc. DS51275B-page 3

PICDEM™ 2 Plus User’s Guide

1.5 PICDEM 2 PLUS USER’S GUIDE

This document describes the PICDEM 2 Plus demonstration board, tutorial and
demonstration software. Detailed information on individual microcontrollers may be
found in the device’s respective data sheet. Detailed information on In-Circuit Emulator
(ICE) or In-Circuit Debugger (ICD) systems may be found in the respective tool’s user
guide.

Chapter 1: Introduction – This chapter introduces the PICDEM 2 Plus and provides a
brief description of the hardware.

Chapter 2: Getting Started – This chapter goes through a basic step-by-step process
for getting your PICDEM 2 Plus up and running as a stand-alone board or with an ICE
or ICD.

Chapter 3: Tutorial – This chapter provides a detailed description of the tutorial
program.

Appendix A: Hardware Description: This appendix describes in detail the hardware of
the PICDEM 2 Plus board.

1.6 REFERENCE DOCUMENTS

Reference Documents may be obtained by contacting your nearest Microchip sales
office (listed in the back of this document) or by downloading via the Microchip web site
(www.microchip.com).

• Individual Data Sheets and Reference Manuals:

- PIC16F87X Data Sheet (DS30292)

- PIC18FXX2 Data Sheet (DS39564)

- PICmicro

- PICmicro

- TC74 Data Sheet (DS21462)

• MPLAB

• MPASM™ User’s Guide with MPLINK™ Linker and MPLIB™ Librarian (DS33014)

• PRO MATE

• PICSTART

• MPLAB

• MPLAB

• Microchip Third Party Guide (DS00104)

®

Mid-Range MCU Family Reference Manual (DS33023)

®

18C MCU Family Reference Manual (DS39500)

®

IDE Simulator, Editor User’s Guide (DS51025)

®

II User’s Guide (DS30 082)

®

Plus User’s Guide (DS51 028 )

®

ICE User’s Guide (DS51159)

®

ICD 2 Quick Start Guide (DS51268)

DS51275B-page 4  2004 Microchip Technology Inc.

PICDEM™ 2 PLUS USER’S GUIDE

Chapter 2. Getting Started

The PICDEM 2 Plus may be used as a stand-alone board with a preprogrammed
device, with an In-Circuit Emulator (ICE) or with an In-Circuit Debugger (ICD). For a list
of PICmicro microcontroller compatible ICEs or ICDs, please refer to the Development
Systems Ordering Guide or the Microchip Third Party Guide.

2.1 PICDEM 2 PLUS AS A STAND-ALONE BOARD – PREPROGRAMMED DEVICE

The PICDEM 2 Plus may be demonstrated immediately by following the steps listed
below:

• Place the preprogrammed sample device in the appropriate socket on the
PICDEM 2 Plus board.

• Place a jumper on J6 (to enable the LEDs).

• Verify that the board is set up for a 4 MHz canned oscillator (i.e., no jumper on J7;
a 4 MHz oscillator in Y2; Y1, C4 and C5 are empty).

• Apply power to the PICDEM 2 Plus. For information on acceptable power sources,
see Appendix A.

To reprogram the sample device, the following will be necessary:

1. Program source code.

User source code may be used to program the device or, if this has previously
been done, the sample program may be restored from the file on the included
CD-ROM.

2. An assembler, such as MPASM™ assembler (available with MPLAB IDE), or a

compiler, such as MPLAB C18 (PIC18 devices only).
Source code must be assembled or compiled into a Hex file before it can be

programmed into the device. Microchip Technology’s MPASM assembler or
MPLAB C18 C compiler may be used. Both are compatible with MPLAB IDE.
However, other assemblers/compilers may be used. For a list of these PICmicro
MCU compatible language tools, please refer to the Microchip Third Party Guide.

3. A device programmer, such as PRO MATE

PICSTART
MPLAB IDE v6.00 or greater).

Once the sample program is in Hex file format, a programmer may be used to
program a Flash device. Microchip Technology’s PRO MATE II device
programmer, PICSTART Plus development programmer or MPLAB ICD 2 may
be used. All are compatible with MPLAB IDE. However, other programmers may
be used. For a list of these PICmicro MCU compatible programmers, please refer
to the Microchip Third Party Guide.

If the code protection bit(s) have not been programmed, the on-chip program
memory can be read out for verification purposes.

®

Plus or MPLAB® ICD 2 (programmer functionality available with

®

II, MPLAB® PM3

(1)

®

,

Note 1: The MPLAB PM3 device programmer will be available in Q2 2004. Check

the Microchip web site (www.microchip.com) for further information.

 2004 Microchip Technology Inc. DS51275B-page 5

PICDEM™ 2 Plus User’s Guide

2.2 PICDEM 2 PLUS USED WITH AN IN-CIRCUIT EMULATOR OR IN-CIRCUIT DEBUGGER

To use PICDEM 2 Plus with an In-Circuit Emulator (ICE) or In-Circuit Debugger (ICD),
refer to the tool’s user guide for instructions on how to power-up and configure the
ICE/ICD, as well as how to connect to target boards (e.g., Figure 2-1).

FIGURE 2-1: PICDEM 2 PLUS CONNECTED TO MPLAB ICD 2 USING USB

Configure the PICDEM 2 Plus for the desired oscillator as described in Table 2-1. Refer
to the ICE/ICD user’s guide for any oscillator configuration requirements.

TABLE 2-1: OSCILLATOR SELECTION

Oscillator Selection on

PICDEM 2 Plus

RC J7 installed, Y2 empty, Y1 empty
Crystal J7 removed, Y2 empty, crystal in Y1, caps in C4 and C5
Canned Oscillator J7 removed, oscillator in Y2 (Y1, C4, C5 empty)
Resonator – no internal caps J7 removed, Y2 empty, resonator in Y1, caps in C4 and C5
Resonator – with internal ca ps J7 removed, Y2 empty, resonator in Y1, C4 and C5 empty

Modification on PICDEM 2 Plus

DS51275B-page 6  2004 Microchip Technology Inc.

PICDEM™ 2 PLUS USER’S GUIDE

Chapter 3. Tutorial

The tutorial program is preprogrammed into the sample device, (i.e., p16demo.hex for
a PIC16 device and p18demo.hex for a PIC18 device). Also, this program is on the
included CD-ROM program disk for user reference, (i.e., if the sample device has been
reprogrammed with another program, the tutorial may be reprogrammed into the
device).

For detailed information on the PICDEM 2 Plus hardware, please refer to Appendix A.

3.1 TUTORIAL PROGRAM OPERATION

The tutorial program is made up of four components, which are individually displayed
on the LCD.

1. Voltmeter
This mode uses the A/D module to measure the voltage of the R16 pot and
display a voltage between 0.00V and 5.00V on the LCD. Voltage is continually
updated until the mode is exited by pressing RB0.

2. Buzzer
This mode turns on the Piezo buzzer, using the CCP1 module I/O pin, RC2. The
period and duty cycle of the CCP1 frequency can be changed while the buzzer
is on. The changes in period and duty cycle are recognized immediately in the
buzzer tone. To change the period and/or the duty cycle, press RB0 under the
“Buzzer” menu. The buzzer will then sound off with the default setting of 80h for
the period and duty cycle. The cursor will flash over the period’s first digit,
indicating that the PR2 register is ready to be incremented. To change the duty
cycle, press RA4 once and the cursor will now flash over the duty cycle’s first
digit, indicating it is now ready to increment the CCPR1L register. The next press
of RA4 will exit the buzzer function.

3. Temperature
This mode uses a TC74 thermal sensor to measure ambient temperature in
Celsius and then display that temperature on the LCD. Communication between
the PICmicro MCU and sensor is accomplished using the MSSP module. This
mode is exited by pressing RB0. This mode contains code that will write to the
external on-board EEPROM. Every two seconds, the code will write to a defined
EEPROM address and store the current temperature in that address.

4. Clock
Once this mode is entered from the main menu, a real-time clock will start
counting from 00:00:00. The Timer1 module and a 32 kHz clock crystal are used
to establish a real-time clock. By pressing RA4, the clock time can be set to the
user’s preference. When RA4 is pressed to set the time, the cursor will flash over
the hours ten digit. Press RA4 again and the cursor will now flash over the
minutes ten digit. RB0 is used to increment hours and minutes whenever the
cursor is flashing over either. After the minutes have been set, press RA4 and the
time will be set and the LCD is returned to an active clock display.

The data that is sent to the LCD is also sent to the RS-232 serial port using the USART
on the PICmicro MCU. A HyperTerminal™ program on the PC will be able to display
the same information that is displayed on the LCD

 2004 Microchip Technology Inc. DS51275B-page 7

PICDEM™ 2 Plus User’s Guide

FIGURE 3-1: TUTORIAL PROGRAM FLOW CHART

Power-up

PICDEM™ 2 Plus

Voltmeter
RA4 = Next
RB0 = Now

Buzzer
RA4 = Next
RB0 = Now

Temperature

RA4 = Next
RB0 = Now

Volts = 0.33V

RB0 = Exit

Prd = 128 DC = 128
RA4 = -> RB0 = ++

RA4 = 3 presses

Clock
RA4 = Next
RB0 = Now

Temp = 022°C

RB0 = Exit

00.00.02

RA4 = Set RB0 = Menu

00.00.03

RA4 = -> RB0 = ++

RA4 = 3 presses

DS51275B-page 8  2004 Microchip Technology Inc.

3.2 SOURCE CODE AND APPLICATION NOTES

In addition to the assembled tutorial program (Hex files), source code used to create
these Hex files is included on the PICDEM 2 Plus CD-ROM. Both source code and
related Hex files are found in device-specific directories.

Application Notes are also included on the CD-ROM for additional examples of use.
For information on how to reprogram the device with new or modified code, or how to

restore the tutorial program, please see Section 2.1 “PICDEM 2 Plus as a

Stand-Alone Board – Preprogrammed Device”.

Tutorial

 2004 Microchip Technology Inc. DS51275B-page 9

PICDEM™ 2 Plus User’s Guide

NOTES:

DS51275B-page 10  2004 Microchip Technology Inc.

Appendix A. Hardware Detail

The PICDEM 2 Plus hardware is extremely simple and is intended to illustrate the ease
of use of various PICmicro MCUs. The PICDEM 2 Plus features the following hardware
elements:

A.1 PROCESSOR SOCKETS

Although three sockets are provided, only one device may be used at a time.

• 18-pin socket

• 28-pin socket

• 40-pin socket

A.2 DISPLAY

Four red LEDs are connected to PORTB of each processor type. The PORTB pins are
set high to light the LEDs. These LEDs may be disconnected from PORTB by removing
jumper J6.

One green LED is provided to determine whether there is power to the PICDEM 2 Plus
board (LED on) or not (LED off).

PICDEM™ 2 PLUS USER’S GUIDE

A.3 POWER SUPPLY

There are three ways to supply power to the PICDEM 2 Plus:

• A 9V battery can be plugged into J8.

• A 9V, 100 mA unregulated AC or DC supply can be plugged into J2. A power
supply can be purchased through Microchip, Part #AC162039.

• A +5V, 100 mA regulated DC supply can be connected to the hooks provided.

Note: The PICDEM 2 Plus kit does not include a power supply.

MPLAB ICE 2000 users have a regulated +5V power supply available in the logic probe
connector and can easily connect to the hooks on PICDEM 2 Plus (Red probe to +5V
and Black probe to GND).

MPLAB ICD 2 users may use the ICD to power the target board to 5V , up to 200 mA, if
the MPLAB ICD 2 is connected to the PC with a serial cable.

A.4 RS-232 SERIAL PORT

An RS-232 level shifting IC has been provided with all necessary hardware to support
connection of an RS-232 host through the DB9 connector. The port is configured as
DCE and can be connected to a PC using a straight-through cable.

The PIC16/PIC18 RX and TX pins are tied to the RX and TX lines of the MAX232A.

 2004 Microchip Technology Inc. DS51275B-page 11

PICDEM™ 2 Plus User’s Guide

A.5 SWITCHES

Three switches provide the following functions:

• S1 – MCLR

• S2 – Active-low switch connected to RA4

• S3 – Active-low switch connected to RB0
Switches S1 and S3 have debounce capacitors, whereas S2 does not, allowing the

user to investigate debounce techniques.
When pressed, the switches are grounded. When Idle, they are pulled high (+5V).

A.6 OSCILLATOR OPTIONS

• RC oscillator (2 MHz approximately) supplied. This oscillator may be disabled by
removing jumper J7.

• Pads provided for user furnished crystal and two capacitors.

• Removable 4 MHz canned oscillator.

• 32.768 kHz (watch type) crystal for Timer1.

A.7 ANALOG INPUT

A 5 KΩ potentiometer is connected through a series 470 ohm resistor to AN0.
The pot can be adjusted from V

an A/D module.

to hard reset the processor

DD to GND to pr ov id e an a n al og input to the parts with

A.8 ICD CONNECTOR

By way of the modular connector (J5), the MPLAB ICD 2 can be connected for low-cost
debugging. The ICD connector utilizes RB6 and RB7 of the microcontroller for in-circuit
debugging.

A.9 TEMPERATURE SENSOR

This is a serial digital thermal sensor (TC74) connected to the 28 and 40-pin
microcontrollers via RC3 and RC4. Communication is accomplished with the TC74 via
it’s 2-wire I

2

C™ compatible serial port. This device has an address of 1001101b.

A.10 SERIAL EEPROM

A 24L256 256K (32K x 8) serial EEPROM is included on the board to illustrate I2C bus
concepts.

A.11 LCD

An LCD display with two lines, 16 characters each, is connected to the 28 and 40-pin
sockets. There are three control lines (RA3:RA1) and four data lines (RD3:RD0).

A 5 KΩ pot may be installed into R20 to adjust contrast on the LCD. If this is done, R5
and R6 need to be removed.

DS51275B-page 12  2004 Microchip Technology Inc.

A.12 SAMPLE DEVICES

A sample part programmed with a simple program is included in the
PICDEM 2 Plus kits.

Table A-1 lists the I/O features and port connections for each processor type.

TABLE A-1: PORT CONNECTIONS

Hardware Detail

Device LEDs RS-232 S1 S2 S3

18-pin RB3:RB0 N/A MCLR
28-pin RB3:RB0 RC6/RC7 MCLR
40-pin RB3:RB0 RC6/RC7 MCLR

RA4 RB0 RA0 N/A N/A N/A RB6/RB7 N/A Yes
RA4 RB0 RA0 RA3:RA1 RC3/RC4 RC2 RB6/RB7 RC3/RC4 Yes
RA4 RB0 RA0 RA3:RA1

Pot

R16

LCD EEPROM Buzzer ICD

RC3/RC4 RC2 RB6/RB7 RC3/RC4 Yes

RD3:RD0

Temp

Sensor

Y1/Y2

 2004 Microchip Technology Inc. DS51275B-page 13

PICDEM™ 2 Plus User’s Guide

A.13 BOARD LAYOUT AND SCHEMATICS

The following figures show the parts layout (silkscreen) and schematics for the
PICDEM 2 Plus board.

FIGURE A-1: PICDEM 2 PLUS PARTS LAYOUT

+9V IN

U8

J2

ICD

J8

5V BATTERY

CR1

CR2

C16

J1

R14

C13

RS-232

R10

Q1

C18

C17

C11

C12

U4U3

C15

J5

J9

C14

P1

R11

PWR

R15

R4

J7

C4

Y1

C5

C10

Y3

R8

R9

U5

(

D1

C3

U6

18 PIN

C7

C1

R1

)

()()()(

J6

R24

R23

U2

C19

C6

28 PIN

1

RESET

R17

S1

RB0RB1RB2RB3

)

R22

R21

R5

R20

111

C8

C20

R18

RA4

S2

R6

CONTRAST

U1

40 PIN

C9

RB0

S3

RA0

R2

R16

0

C2

1
2
3
4
5

RB PORT

RA PORT

RC PORT

R7

R19

Y2

R3

LCD1

RE PORT

+5V

0
1
2

0
1
2
3
4
5
6

+5V

7

+5V

+5V

+5V

RD PORT

GND GND

PICDEM 2 PLUS
DEMO BOARD

GND GND

GND

©2002

DS51275B-page 14  2004 Microchip Technology Inc.

FIGURE A-2: PICDEM 2 PLUS SCHEMATIC

+5V +5V

Hardware Detail

RB0

J2

DJ005B

R19
470

S1

+5V

S2

4
3

R16

5K

+5V

4
3

PIEZO_BUZ

2.2K

R11

R1
10K

R3

4.7K

P1

C1

0.1 µF

+5V

C2

0.1 µF

0.1 µF

U1

10

RE2

9

RE1
RE0
RD7
RD6
RD5
RD4
RD3
RD2
RD1
RD0
RC7
RC6
RC5
RC4
RC3
RC2
RC1
RC0

OSC2

OSC1

8
30
29
28
27
22
21
20
19
26
25
24
23
18
17
16
15

14

13

+5V

R8

4.7K

Y1

TBD

C4

0.1

R9

4.7K

+5V

C10

0.1 µF

U4

8
7
6
5

V
WP
SCL
SDA

1

A0

CC

2

A1

3

A2

4

GND

24LC256_DIP

1
2

NC/OE
GND

V

OUT

4

CC

3

+5V

Y2

TBD

+5V

C5

0.1

R4

4.7K

J7

U2

21

RB0

22

RB1

23

RB2

24

RB3

25

RB4

26

RB5

27

RB6

28

RB7

11

RC0

12

RC1

13

RC2

14

RC3

15

RC4

16

RC5

17

RC6

18

RC7

Y3

32.768 kHz

C6

22 pF

+5V

C7

22 pF

C19

C3

22 pF

11

DD

V

32

VDD

1

MCLR

2

RA0

3

RA1

4

RA2

5

RA3

6

RA4

7

RA5

33

RB0

34

RB1

35

RB2

36

RB3

37

RB4

38

RB5

39

RB6

40

RB7

12

V

SS

31

VSS

+5V

470

R17

470

R2

R18

470

R10
470

40-PIN DEVICE

3

Q1

2

2N2222
TO-92

1

+5V

C8

20

VDD

1

MCLR

2

RA0

3

RA1

4

RA3

5

RA3

6

RA4

7

RA5

9

OSC1

10

OSC2

8

V

SS

19

VSS

28-PIN DEVICE

C9

0.1 µF

R7

4.7K

124

S3

3

1
2

1
2

J9

0.1 µF

U6

14

DD

V

4

MCLR

17

RA0

18

RA1

1

RA2

2

RA3

3

RA4/T0CKI

16

OSC1/CLKI

15

OSC2/CLKO

5

VSS

18-PIN DEVICE

RB0/INT

RB1
RB2
RB3
RB4
RB5
RB6
RB7

6
7
8
9
10
11
12
13

C18
220

+5V

R15
470

D1

1

C16

2
3

0.1

CR1

CR2
1N914

LM340T-5.0

13

INU8OUT

COM

2

C17
220

J8

9V

U5

1

NC

VDD

2

SDA

4

SCL

GND

TC74_TO-220_5P

+5V

5

3

C20

0.1

 2004 Microchip Technology Inc. DS51275B-page 15

PICDEM™ 2 Plus User’s Guide

FIGURE A-3: PICDEM 2 PLUS SCHEMATIC (CONTINUED)

+5V

10K

R20
10K

R5

300

R6

R21 470

D2

+5V

LCD1

3

E

2

R/W

1

RS

14

EE

V

13

VCC

12

GND

15

GND1

DB0
DB1
DB2
DB3
DB4
DB5
DB6
DB7

4
5
6
7
8
9
10
11

R22 470

D3

R23 470

D4

R24 470

D5

J6

+5V

+5V

2

9

1

3

6

U3

V+

T1IN
T2IN

R1OUT
R2OUT

C1+

C1-

V-

C11

0.1 µF

1615

VCC

T1OUT
T2OUT

R1IN
R2IN

C2+

C2-

GND

MAX232A-ND

J1

1

6

14
7

13
8

4

5

2
3
4
5

DE9S-FRS

R14

10.0

7
8
9

C15

0.1

C13

0.1

C12

0.1

C14

11
10

12

0.1

ICD CONNECTOR

+5V

J5

1
2
3
4
5
6

RA RB RC RD

1
2
3
4
5
6

1
2
3
4
5
6
7
8

1 (RC0)
2 (RC1)
3
4 (RC3)
5 (RC4)
6
7 (RC6)
8 (RC7)

1
2
3
4
5
6
7
8

RE

1
2
3

DS51275B-page 16  2004 Microchip Technology Inc.

PICDEM™ 2 PLUS USER’S GUIDE

Index

A

A/D Input................ ..... ...... ..... ...... ...... ...................2, 12

B

Board ............................................................1, 2, 5, 11

Parts Layout...................................................... 14

Power Supply.................................................5, 11

Schematics....................................................... 14

Silkscreen.........................................................14

Buzzer........................................................................ 7

Buzzer, Piezo............................................................. 2

C

Clock.......................................................................... 7

D

Demonstration Board. See Board.
Demonstration Programs. See Sample Programs.

E

EEPROM, Serial...................................................2, 12

H

Hardware .................................................................11

I

ICD Connector.........................................................12

K

Kit Components ......................................................... 1

L

LCD.......................................................................2, 12

LEDs

Green Power..................................................2

Red Display ...............................................2

, 11

, 5, 11

M

MPASM Assembler....................................................5

MPASM Assembler User’s Guide with

MPLINK Linker and MPLIB Librarian...................... 4

MPLAB C18............................................................... 5

MPLAB ICD 2..........................................1

MPLAB ICD 2 Quick Start Guide............................... 4

MPLAB ICE.......................................................1, 6, 11

MPLAB ICE User’s Guide..........................................4

MPLAB IDE................................................................5

MPLAB IDE User’s Guide..........................................4

, 5, 6, 11, 12

O

Oscillator Options..................................................... 12

Oscillator Selection.................................................... 6

P

PIC16F87X Data Sheet.............................................. 4

PIC16.........................................................................1

Tutorial Program......................... ..... ...... ..... ........ 7

PIC18FXX2 Data Sheet.............................................4

PIC18.........................................................................1

Tutorial Program......................... ..... ...... ..... ........ 7

PICDEM 2 Plus Board. See Board.
PICDEM 2 Plus Kit. See Kit Components.

PICSTART® Plus.......................................................5

PICSTART® Plus User’s Guide.................................4

Piezo Buzzer.............................................................. 2

PRO MATE® II...........................................................5

PRO MATE® II User’s Guide..................................... 4

Push Buttons. See Switches.

R

Reference Documents ...............................................4

RS-232................................................................. 2

, 11

S

Sample Devices................................................1, 3, 13

Sample Programs .................................................. 1

Sockets .................................................................... 11

Switches............................................................... 2

, 3

, 12

T

TC74 .......................................................................... 2

TC74 Data Sheet ....................................................... 4

Temperature...............................................................7

Temperature Sensor................................................12

TC74................................................................. 12

Tutorial.......................................................................7

Tutorial Program

Flow Chart...........................................................8

Source Code, Application Notes.........................9

V

Voltmeter.................................................................... 7

 2004 Microchip Technology Inc. DS51275B-page 17

WORLDWIDE SALES AND SERVICE

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Detroit

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Singapore

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Taiwan

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EUROPE

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Denmark

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Italy

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Netherlands

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United Kingdom

505 Eskdale Road
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Fax: [phone]

01/26/04

DS51275B-page 18  2004 Microchip Technology Inc.