Hex file format for Intel 87C196 microcontroller

[BrianG]

Hi folks,
We have an old product which uses the 87C196 microcontroller and I need to program some more blank parts for spares. The problem is I can't be sure of the correct hex file format to setup on our Data I-O 2900 programmer for reading in the file from disk.

The file header looks like this:

:02203800F63F71
:01201800FFC8

which is very similar to Intel Hex-32, but not exactly as the second line seems to be missing two characters for the extended address.

Does anyone out there have any ideas?

 

[melone]

If I remember correctly, you don't define the address on every line. Actually, you only need to define it every 5 or 10 lines. The second line tells you the offset from the last fully defined address. Therfore, it should increment by the number of bytes. I would have to look through some of my old spreadsheets to be 100% sure, but I am very confident that this is how it can work (~99.999%). The advantage of that type of format is that it takes up less space.

 

[melone]

Try the Intel MSC Hex file format on your DataIO.

 

[melone]

:AABBBBCCDD...EE

AA = Number of data bytes (DD)
BBBB = Offset from prefix
CC = Prefix load (02 - load prefix, 00 - no load)
DD.. = Data (variable length)
EE = Line checksum

Hopefully, that makes sense....

 

[melone]

http://margo.student.utwente.nl/el/misc/intl_hex.htm

 

[cbarn24050]

Hi, they are intel hex lines, they are both data records.

 

[melone]

Exactly. The first one has 2 data bytes, while the second has 1 data byte.