>
>Is the format of the Intel HEX file available in electronic format
>somewhere?  Or is it so simple that someone can just quote it in an
>e-mail message?




The Intel Hex Format is viewable by a text editor where you will find
the following for example.

:10000000050C24001f00C4401430684056000E40332
:06001000020A00000000DE
:00000001FF

Looking at the second line for reference you have:

The new line marker   :
Then the first two bytes are the number of data bytes in the record  06
Then is a 4 byte address   0010
Followed by the record type   00    (01 means EOF)
Then the actual data bytes followed by a two byte check sum    DE

The check sum is the 2's complement of all preceding bytes in the record for
example:

6h + 10h + 2h + Ah = 22h = 00100010b

Take 2's complement =      11011101b

                             +    1
                           _________

                           11011110b   = DEh

 I hope this helps.

Joseph D. West
Electronics Lab. Supervisor
College of Mechanical Eng.
Ohio State University

(614) 292-2845
Fax (614) 292-3163