USER'S GUIDE

INTEL HEX FILE FORMAT

8051±compatible assemblers produce an absolute out- put file in Intel Hex format. These files are composed of a series of records. Records in an Intel Hex file have the following format:

<Header><Hex Information><Record Terminator>

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

ttIndicates the record type dd Indicates hex data

xx Indicates the checksum = (2's complement (II+aa+a+tt+dd+dd+...dd)

Record type 00 indicates a data record and type 01 indi- cates an end record. An end record will appear as :00 00000 01 FF. These are the only valid record types for a NIL hex file. Spaces are provided for clarity.

The following is a short Intel hex file. The data bytes be- gin at 01 and count up to 2F. Notice the records 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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Mitsubishi DS907x SIP, DS5000TK manual Intel HEX File Format, 140