aldl data stream

DAN FURGASON furgason at hg.uleth.ca
Thu Jan 25 22:54:14 GMT 1996


The ALDL for my 89 Suburban is a continuous 160 bit/sec bit stream.
It begins with a sync character of 9 consecutive "1" s.	Each subsequent byte
begins with a "0" and then the 8 data bits. The stream continues until all
data is read. Another sync character is sent and the stream repeats with
updated values.

If you program in C++ there is a printer status call to read the parallel port,
so the code to get the data is really easy(timing is a pain).

Among other things, o2, throttle pos, and map are in the data stream.

Dan Furgason



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