Opel Frontera 3.2 V6 Delphi ECU Checksum

[Metaller27]

next game has started, Frontera Delphi ECU, 29F200 convert to USA software, here I also have a problem with the checksum, WinOLS 267 only finds the Trooper software, here the 800F is changed, I can't check whether that fits. Other software versions are not found.

[kur4o]

First you need to byteswap those files, looks like they are read with eeprom programmer.

There is similar holden pcm we have already some support for it. I think it can be read with some script, as long as you have access to a tool that support VPW protocol in x4 mode.

Writing will be not that far away once we dial checksums and find some volunteer to test it.

CPU is similar to 0411 ls1 pcm, DTC layout should be much similar too. Some disassembly will help find checksum range and where it is stored.

4000-8000 is eeprom area, 8000-20000 is calibration, 0-4000 is boot block, rest is code most of the time.

[Metaller27]

yes is read by eeprom, hi-low swap i know, but how to checksum? winols switch 800F 8bit test with am29f800bb_xxS, and found only with this file a checksum