Re: 7170.ecu help

[Ludis Langens <ludis@cruzers.com>]

James P Hunt wrote:
> 
> I am working on developing a .ecu file for the 7170 ECM, and cannot get
> the checksum correct, can anyone see my problem?
> 
> ecu_id     =GM_C3_ECM,
> filesize (hex)   =1000,
> checksum addr    =0,
> checksumsize     =2,
> checksumstart    =8,
> checksumend      =7fff,
> # of tables      =1,,

The checksum in the '7170 is for byte offsets from 2 through 0xfff.  In
other words, for all bytes in the 4096 byte EPROM except for the
checksum bytes.

-- 
Ludis Langens                               ludis (at) cruzers (dot) com
Mac, Fiero, & engine controller goodies:  http://www.cruzers.com/~ludis/
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