Read/write Evo ECU memory whilst engine running

Developer topics relating to software that reflashes or modifes ECU code and data

Moderator: Freon

Read/write Evo ECU memory whilst engine running

Postby S54fan » Wed Mar 07, 2007 11:29 am

See picture of extracts of the datalog.

I've written new code for my ECU that allows you to read and write any memory location whilst the engine is running.

To accomplish an end-user product, the logging applications will need to be updated to give this a nice front end. This isn't my department

Also the actual maps need to be put into RAM. This is easy - just change pointers. There needs to be a check put in when the ECU has been powered down, reflashed or reset to check that the RAM is populated which will need more work.
Attachments
test.hex
(1.38 KiB) Downloaded 480 times
asm12.txt
(1.5 KiB) Downloaded 478 times
Request ID E0 to E3.GIF
Request ID E0 to E3.GIF (57.6 KiB) Viewed 1744 times
S54fan
 
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Postby S54fan » Wed Mar 07, 2007 11:32 am

ROM attached that was used for above tests.

Spec: Evo 9 GSR JDM (UK FQ340), exhaust, airbox mod, intercooler and turbo inlet pipes, Walbro, AVC-R @ 1.8 bar, 3.6 bar fuel pressure, 10% methanol.
Attachments
readwritemod360meth.hex
(512 KiB) Downloaded 613 times
S54fan
 
Posts: 233
Joined: Fri Dec 16, 2005 4:39 am

Postby salex » Wed Mar 07, 2007 1:51 pm

Wow... Amazing... Very well done!
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