User manual

MPLAB

PM3 User’s Guide

7.7 FILES USED BY MPLAB PM3

MPLAB PM3 can use information directly from MPLAB IDE projects without any

intermediate steps. MPASM assembler can be used separately from MPLAB IDE to

produce hex files for MPLAB PM3. Alternatively, devices can be programmed with hex

files from any PICmicro MCU-compatible cross-assembler or cross-compiler.

If using MPASM assembler separate from MPLAB IDE, or generating hex files from

within MPLAB IDE for use later with MPLAB PM3, use either INHX8M or INHX32 hex

formats. MPASM assembler’s default output format for hex files is INHX32.

If programming PIC17CXXX, PIC18CXXX or PIC18FXXX devices, use INHX32 format.

See the “MPASM™ Assembler, MPLINK™ Object Linker, MPLIB™ Object Librarian

User’s Guide” (DS33014) for details on file formats.

7.7.1 Using Hexadecimal Record Formats

The following provides the proper file format for the PICmicro MCU device families.

Make sure the assembler or compiler is configured to generate hex files in the proper

format. MPLAB PM3 uses the formats described in Table 7-11.

Each hexadecimal data record has the following format:

:BBAAAATTHHHH....HHCC

INHX8M

The data record is output as described above.

INHX32

The extended linear address record is output to establish upper 16 bits of data address.

TABLE 7-11: PICmicro

MCU DEVICE FAMILY FILE FORMATS

Device Family File Format

PIC16C5X/6X Uses INHX8M

PIC17CXX Uses INHX32

PIC18XXX Uses INHX32

Firmware Downloads Uses INHX32

TABLE 7-12: HEX DATA RECORD FORMAT

Record Format Description

: Start character (prefix)

BB 2-digit byte count specifying the number of data

blocks in a record

AAAA 4-digit starting address of the data record

TT 2-digit record type:

00 = Data record

01 = End of file record

02 = Segment address record

04 = Extended linear address record

(INHX32)

HHHH....HH 2-Digit data blocks

CC 2-Digit checksum. Two's complement of the sum of

all preceding bytes in the data record except the

colon (start character).