Microchip Technology MPLAB PM3 Instructions d'utilisation

Setting

the

MPLAB®

PM3

Programmer

• SOFTWARE INSTALLATION

use MPLAB PM3 Device Programmer with a

running Windows®, install the

MPLAB IDE software, v6.41 or greater. (Check the web site for the latest version

at: www.microchip.comldevtools.)

Insert the MPLAB IDE CD-ROM into the CD-ROM drive (Example: drive D)

or download the software from the web site if newer.

Follow the on-screen instructions to install the MPLAB IDE software.

not

run the MPLAB IDE program yet.

• USB DRIVER INSTALLATION

For USB only. When using RS-232 communications, proceed to Step

IMPORTANT:

not allow the Windows OS to pick a USB driver;

will not work

and you will then not be able to install the proper driver without reinstalling the OS.

Follow the procedure specified here for correct USB driver setup.

Follow the USB driver installation instructions that pop up at the end ofMPLAB IDE

installation. These instructions are also

the MPLAB IDE installation directory

under

Driversnn

pm3_usb

ddpm3nn.htm,

where

is the Windows OS

version.

Keys/Buttons

• HARDWARE SETUP

1. For USB Communication: Connect one end

the USB cable to a USB port

the PC. Connect the cable from the PC USB port to the corresponding

USB connector

the back

the MPLAB PM3 Programmer.

For RS-232 Communication: Connect one end

the RS-232 cable

COM port

the PC. Check the PC setup to see which communications port

available. Connect the cable from the

COM port to the correspondi

RS-232 connector

the back

the MPLAB PM3 Programmer.

Make sure the power switch

the MPLAB PM3 is

the "O" (off) position.

Connectthe powercord

the power supply, connectthe powersupplyto the

MPLAB PM3, and turn the power switch to "I" (on) to apply power.

Power On Power Off

Power Input

PWR~

• SOFTWARE SETUP

USS Port Serial Port

USB

rgj

rf)}

\!11ll]rf)}

RS-232

Secure Digital/

Multi-Media Card Port

SD-MMC

1. Launch MPLAB IDE. For RS-232 Communication only: Set the COM port

FIFO buffers "

Off

' and the Flow Control to "Hardware". Refer to

Help>Topics>MPLAB PM3 for on-line help. Select Troubleshooting>

Common Problems>Advanced Serial Communications He/p>Setting up the

port manually for instructions for your operating system.

From the MPLAB IDE menu, select Configure>Select Device.

this dialog,

choose the device you want to program and click OK.

Select Programmer>Select Programmer>MPLAB PM3. Once MPLAB PM3

selected, additional programmer options appear

the Programmer

menu.

4. Select Programmer>Settings and click on the Communications tab. Select

the appropriate port for RS-232 (COM 1-4) or USB.

Select Programmer>Enable Programmerto begin using the MPLAB PM3.

Select Help>Topics>MPLAB

view on-line help for the programmer,

including electrical specifications, socket module installation, ICSP™

pinouts, programming a device,etc. Select Help>Topics>MPLAB

IDEto

view

on-line help

creating projects and debugging code.

MICROCHIP

MPLAB®

PM3

ICSP™ Design

Guide

ICSP™

Implementation Considerations

The MPLAB® PM3 Device Programmer allows programming

PICmicro®

microcontrollers that are alreadyinstalled in a target board using ICSP (In-Circuit Serial

Programming). However, the application circuit must be designed to allow all the

programming signals to be directly connected to the PICmicro device and must

compensate for the following issues. Figure 1 shows a typical circuit as a starting point

when designing an application circuit for ICSP.

ISOLA

TE MCLRNPP PIN

When the MCLRNPP pin is connected to an RC circuit, theoperation

ICSP is affected

by the size

the capacitive load. It is recommended that you use a resistor

Schottky-

type diodeto isolate the RC circuit from the programmer. Ifthe application circuitcannot

isolate the RC circuit in this way, a series resistor up to 100 Ohm may be used to help

prevent overshoot caused by the application circuit. In addition,

an external reset

device is connected to MCLR, it must be isolated from the voltage applied by the

programmerto this pin during programming. Typically, a series resistor between MCLR

and the external reset device

used to limit the current to safe levels. See Application

Note AN820 for more details on this topic.

ISOLA

TE PGC/PGD/PGM PINS

Pins RB6/PGC and RB7/PGD must be isolated from the application circuit to prevent

the programming signals from being affected by the application circuitry. This isolation

circuit must account for RB6/PGC and RBS/PGM being inputs on the PICmicro device

and for RB7/PGD being bidirectional (can be driven by both the PICmicro device and

the programmer).

the design permits, these pins should NOT be used by the

applications. Consider what type

circuitry is connected to RB6/PGC, RB7/PGD and

RBS/PGM and decide on how to isolate these pins. Figure 1 shows typical circuitry. It

does not show any circuitry to isolate RB6/PGC, RB7/PGD and RBS/PGM on the

application circuit as this is application dependent.

Voo

Typical circuits use several hundred microfarads

capacitance on

Voo

to help damp

noise and ripple. However, this capacitance requires a fairly strong driver

the

programmerto meet the rise rate timings for

Voo

. Ifan application circuit requires more

power than the MPLAB PM3 programmer can supply, the application circuit may need

to power itself. Refer to the MPLAB PM3 on-line help for further details.

Voo-ONLY (NON-HIGH VOLTAGE) PROGRAMMING

When using Voo-only ICSP mode, care must be taken to ensure RBS/PGM does not

float high during power-on. Therefore, it is recommended that RBS/PGM be tied to

system ground through a 1

resistor and that RBS/PGM is not used for the application

circuit.

lsolat10n

ClfCUltry

eStstor

Sclloltky·type

dlOde

10K

• 4700hm·

µF

•

ypical

Values

Targel

M1crocontroller

Device

Note

: If

unable

isolate

MCLR

PCB.

use

senes

resistor

here

he!p

pre'.'cr:

cxccssi-.c

ove;shoot.

f:!:l!'!==----

Connect

~..._....~---

LAB

PM3

Note

Isolate

programming

signals

rom

appllcat1on

circull

Application

rcuit

1csp

·• ·

FIGURE 1: TYPICAL ICSP APPLICATION CIRCUIT

GND

The MPLAB PM3 must be at the same ground potential as the application circuit.

ADDITIONAL SYSTEM CONCERNS

Some Microchip programming specifications require the device to be programmed at

. If an application circuit operates at 3V only, special considerations must be made,

such as totally isolating the PICmicro device during programming.

PROGRAMMING ENVIRONMENT

Physical distance between the programmer and the application circuit affects the load

capacitance on each

the programming signals. Therefore, the cable length must be

kept as short as possible and properly terminated and shielded. Otherwise, the

programming signals may be corrupted by ringing or noise.

FINAL NOTE

programming problems exist once the application circuit is designed, verify that all

programming signals meet the programming specification rise times and voltage levels.

MICROCHIP

2004 Microchip Technology Inc

6/04 DS51474A

MICROCHIP

Microchip Technology Incorporated

2355 W. Chandler Blvd.

Chandler,

AZ.

85224-6199

ASSEMBLY

NUMBER:

14-00596

REV:

6 Product

No:

DV007004

ASSEMBLY

NAME:

PRODUCT TREE, PM3 PROGRAMMER

10-00362

ASSY.

PM3

UT/SOFTWARE KIT Rev:

Qty

Part

Number

Description

1 DS30400

DOC.

MPASM

ASSEMBLER

QUICK

REFERENCE

GUIDE

1 DS51322

DOC.

dsPIC30F LANGUAGE TOOLS QUICK REFERENCE

CARD

1 DS30210

DOC,

1MPORTANT

INFORMATION" MICROCHIP INFORMATION

1 DS30030 DOC, WARRANIY/REGISTRATION CARD

1 DS51281 DOC, MPLAB IDE

6.xx

QUICK START

1 DS51123 SOFTWARE. MPLAB CDROM

11-00181 ASSY.

PM3

PROGRAMMER Rev:

Qty

Part

Number

Description

1 DS51474

DOC.

mAB

PM3

ICSP DEISGN GUIDE

1 DS51450

DOC,

SETTING

lHE

mAB

PM3

CAB0008

CABLE.

usa·A-B

M-M

6°

1 CAB0003 CABLE. RS-232 DATA CABLE. DB9 MIF SHIELDED 6 FT.

1 CAB0002 CABLE. IEC POWER CABLE

1 PS0015 POWER SUPPLY, 3.3V@SA.

[email protected]

w/DIN CONNECTOR

1 07-00028 CABLE ASSY. PM3 ICSP CABLE

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