[Diy_efi] Motronic ML4.1 disassembly ..

[944Technologist]

Dave.

What make you think it is an 80515?  The ML3.1 has an 8051 with an external
EPROM. 1kx8 ROM is internal to the 8051 and the EPROM is 2kx8.

The 80515 has 8kx8 internal ROM. Is that what you downloaded? I am not clear
from what you wrote.

FR Wilk
________________________________________

----- Original Message -----
From: "Dave Brul" <d.brul2 at chello.nl>
To: <diy_efi at diy-efi.org>
Sent: Monday, May 27, 2002 11:41 PM
Subject: [Diy_efi] Motronic ML4.1 disassembly ..


> Hi All,
>
>
> A while ago i've got the crazy idea of disasembling my Motronic ML4.1
> code (the ecu nr is 0 261 200 119 and software nr is: 1 267 355 335).
>
> The reason for al this work is that i'm trying to convert my AFM
> Motronic to utilize a MAF sensor (hot film or wire).
>
> I started with reading all Jim Conforti's (aka Land Shark) posts
> regarding the subject. I unfolded the bin file from my ecu (copy the
> first 8k to the end of the binfile resulting in a 40k binfile (b.t.w why
> am i doing this ? I've read somewhere that the bin is executed from
> 0x2000 up, but al the interrupt vectors are in a lower region .. ?!)).
>
> Then fixed the dis8051 operand files for the 80515 ecu. Tagged the
> appropriate regions in the .tag file and started disassembly.
>
> Now i have a huge assembly source file. What's the best way to start to
> try and understand the code ?? (I already know the 80515 instruction set
> from previos work with the 8051.)
>
> Can anyone point me in the right direction ??
>
> Thanks in advance,
>
>
>
> Dave.
>
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>

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