openecu.org

by **DarkECU** » Wed Mar 26, 2008 5:18 pm

Here is Mazda CX7 2008 A/T Euro ROM

ECU ID is L37LEG0WZ03 - it starts from #800A, length 10 bytes

you can start to explore maps at #8000 - #4FFFF addresses

for example

3D map

data area #35514
size 19x30
format unsigned int

axes:
X30 #354CA unsigned int
Y19 #354AA unsigned char

by **radsdau** » Wed Mar 26, 2008 5:41 pm

Spectacular!
May we inquire about how the extraction took place? This looks like a partial ROM only; no vector table, etc.

by **christian_piasini** » Fri Apr 11, 2008 1:52 am

Nice to see other start work on Mazda.

Christian Piasini
R&D Piasiniengineering

by **evo8** » Mon Apr 28, 2008 7:35 am

Do you know what processor it runs - so I can try to dissassemble in IDAPro?

Also - are ther any tools (interfaces availeble) to read and flash - similar to those on Evos or WRX?

I have had two requests on CX7 reflash already - so I am curious what is the story here.

by **radsdau** » Mon Apr 28, 2008 3:46 pm

Looks like a 7058 or some variant to me (big endian), so IDA Pro should do the trick... does anyone have the first 32k that seems to be missing from the attached hex dump?

by **christian_piasini** » Tue Apr 29, 2008 12:07 pm

Some more details on the ecu.

The ecu has the SH7058 MCU.

Best regards

Christian Piasini
R&D Piasiniengineering

by **radsdau** » Wed Apr 30, 2008 8:14 pm

Wow, you have done some work, nice job!
So I'm taking it that nobody has a ROM dump that contains the first 32k?

by **MarekW** » Thu May 01, 2008 9:53 am

Hi,

It is nice that somebody try to communicate with mazda.
I am still looking for any hints how to communicate with MAZDA RF4S ECU (it is denso DENSO) This ecu is for MAZDA diesel (DITD) engine created between 1998-2002) My version was sold at Germany market).
The OBD connector has only pins 4,5,7 and 16 as I remember corectly (only one K-line interface).
But standard interface based on ELM327 is not working.
Does any knows how to wakeup this ECU via OBD?

BRs
Marek
(Poland)

by **Quick** » Wed May 07, 2008 5:51 am

Hi all,

I just picked up a new Mazdaspeed3 and want to try and help get this to work for it. So, which cable did you guys use to pull the ROM? And which software??

by **radsdau** » Wed May 07, 2008 3:16 pm

As far as I know, only Piasini Engineering has a commercial solution for reading and writing these. Their Serial Suite is a *bit* on the expensive side though. I'm not sure where the 'partial' ROM above came from; all involved seem to be quite secretive about this at present.

by **Frenzy** » Thu May 08, 2008 12:36 am

Interesting ! :wink:

( tu es francais ? )

by **Quick** » Thu May 08, 2008 4:51 am

Hmm... I don't mind doing the work to pull apart the ROM code, i just need to get it first. And need a cable to pull it/flash it.

C'mon guys, the money is not made by hiding the technology...

by **christian_piasini** » Sun May 11, 2008 1:27 pm

We are the only ones support the read/write of all the petrols Mazda

Mazda 6 2.3 Turbo
Mazda 6 2.3 NA
Mazda 6 2.0 NA
Mazda 6 1.8 NA
Mazda 6 1.6 NA

Mazda 3 2.3 Turbo
Mazda 3 2.0 NA
Mazda 3 1.8 NA
Mazda 3 1.6 NA cooming soon

CX7 2.3 Turbo

We don't are in progress on the mazda ecus, we have it ready from 4 months a go.

Best regards

Christian Piasini
R&D Piasiniengineering

by **DarkECU** » Fri Jun 06, 2008 1:53 am

it is some roms for mazda

by **radsdau** » Mon Jun 09, 2008 3:27 pm

Wow, nice work!

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