does any one knows in detail about this ecu???

sjpro · Newbie

does any one knows in detail about this ecu???

RidgeRacer · Guru

Any chance you could take a higher resolution (bigger) picture and one of the other side also?

sjpro · Newbie

thank you very much for the reply.
will take and will post.
regards,
SJpro

Rhinoman · Veteran Member

Did you find out anything about this ECU? I also have one of these that I was going to try and hack.
Cheers
James

intra · Newbie

It looks very similar to a Subaru WRX ecu, do you have pictures of the backside of the ecu?

You might find it has some nice solder pads to connect a BDM

Rhinoman · Veteran Member

I haven't been on here for a while but I'm certain that this is a 68HC16. There are pads on the back that allow wiring to the BDM port. I've modded mine but not yet tried to read it.

Edited to fix links.

-- Edited by Rhinoman at 18:11, 2008-10-03

sjpro · Newbie

Hello Rhinoman!!!

am so glad that you have cracked it..... i cant express it... thanks a lot

but what next... by tomorrow evening , i shall purchase all the components for bdm interface and shall get through... then what next..how do i read?

with all great respect to your hard work,
best regards,
SJpro

Rhinoman · Veteran Member

I'm still trying to get into mine. The Motorola drivers are written for an old PC (286/386) and there are two files, one for the PE interface and one for the public domain interface. You can work out the correct pinouts from the source code. I have managed to compile the source code using Borland Turbo C on an old 166MHz PC running Win95. The problem that I have is that the ECU is continuously resetting which causes it to drop out of background debug mode. It is difficult to debug with the DOS/PC setup so I am going to try using a microcontroller so I can control the timing more accurately. I think that there may be a watchdog timer running that is causing the problem, the reset is at around 100ms intervals so I believe that its too short to be a diagnostic reset. Hopefully I can get round this by commanding background debug mode and then issuing a stop processor command. I can send you the DOS executable file if you want to try it.
Cheers
James

-- Edited by Rhinoman at 23:39, 2008-12-12