Owner's manual

Ultra-High-Speed Flash

Microcontroller User’s Guide

Intel Hex File Format

Assemblers that are 8051-compatible produce an absolute output file in Intel hex format. These files are composed of a series of

records. Records in an Intel hex file have the following format:

The specific record elements are detailed as follows:

: II aaaa tt dddddd ... dd xx

where:

: Indicates a record beginning

II Indicates the record length

aaaa Indicates the 16-bit load address

tt Indicates the record type

dd Indicates hex data

xx Indicates the checksum = (two’s complement (II+aa+a+tt+dd+dd+...dd)

Recor

d type 00 indicates a data record and type 01 indicates an end record. An end record appears as :00 00000 01 FF. These are

the only valid record types for a NIL hex file. Spaces ar

e provided for clarity.

The following is a short Intel hex file. The data bytes begin at 01 and count up to 2F. Notice the record’s length, beginning address,

and record type at the start of each line and the checksum at the end:

:200000000102030405060708090A0B0C0D0E0F101112131415161718191A1B1C1D1E1F20D0

:0F0020002122232425262728292A2B2C2D2E2F79

:00000001FF

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