Driving BDM of S12X MCU from another one?

[pittbull]

Hello,
I want to make my own BDM programmer. For this purpose, I need to drive the BDM port of the target S12X from another S12X MCU.
I found the Open Source BDM project files, but unfortunately they are made for 68HC908 and full of inline assembly.

Is anybody out there who has ported those codes to S12?
Are there other projects or ressources that show how to do BDM programming from an S12X?
I don't like to re-invent the wheel

Thanks in advance,
-> pittbull

[eckhard]

Hello,

DBug12 can act as BDM Pod. I thing it is supported by GCC. Don´t know if there is Codewarrior support for DBug12.

Eckhard

[pittbull]

Hi Eckhard,
Thanks for the reply.
I looked around but found no source codes for DBug12.
Beside that, DBug12 seems to be a monitor program that already must reside in the target MCU. What I need is a bunch of routines that are able to program a blank S12X over BDM.
I'm now investigating some Linux stuff that I found with Google code search...

[eckhard]

Hello,

Dbug12 is not open source, only the binaries are free.

You ony need DBug12 on your BDm Pod, the target dont needs DBug12.

The problem is that you have to install a software on your first S12 or S12x without a BDM to get a BDM pod, but that is with all solutions that are S12 based. Thats one reason why TBDML uses a HC08.

So try to find someone who programs your first S12.

Eckhard