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AccetturaRepues
7th February, 2019, 01:17 PM
Good morning everyone, im in the task to unbrick an Allison TCM A53 module of the gearbox from Mercedes Benz Buses, after doing a lot of research this modules, have a BDM port to do "Something", i downloaded the exact datasheet of the MPC561MZP56, to figure it out why and for what that BDM port was there.

Here is the deal these TCM most of them ar bricked, my task is to try to unbricked them, i have a Xprog, BDM100, UPA, Kess and Jtag.

I want someone to help me out, with some of the douts i have, for example:

can i read this MPC?
With what can i read this MPC?
Does exist a pinout for this MPC port?

any help would be much appreciated.

regards.
morgano
7th February, 2019, 07:15 PM
Those pads in the third image can be the bdm port pads. They are near the processor. If those two marked pads are ground then you can figure out connector orientation easily.
AccetturaRepues
8th February, 2019, 01:47 PM
Those pads in the third image can be the bdm port pads. They are near the processor. If those two marked pads are ground then you can figure out connector orientation easily.

Thanks for answering, yes i know the orientation now, i also found yesterday this https://www.nxp.com/docs/en/application-note/AN2000.pdf about the BDM port of the MPC561, but now i want to know how can i connecte de BDM100 or the xprog to it.
morgano
8th February, 2019, 01:49 PM
Sure you can. Both tools support that mpc.
AccetturaRepues
8th February, 2019, 02:17 PM
Thank you for answering again.

I`ve read that yes, both tools support the MPC, but i followed the xprog connection and it didnt do anything, the xprog just stuck there "loading" after several minutes, it stoped and did nothing, i have the china xprog 7.54, and the BDM100, i saw a couple of videos and read some pdf`s explain how the read the MPC (no exactly in this module), so i tried to apply and follow they procedures, didnt have luck

Do you know how its the connection to the BDM100 or the xprog?

Regards.
morgano
8th February, 2019, 10:10 PM
Mate the connection is standard. hope you haven't danced the pins in the wrong positions or your ecu would be dead.
AccetturaRepues
11th February, 2019, 07:49 PM
Mate the connection is standard. hope you haven't danced the pins in the wrong positions or your ecu would be dead.
Thank you for answering, but forgive my ignorance, tho i dont know the "standard" connection for this. if you could show me how to connected i appreacited
AccetturaRepues
12th February, 2019, 08:08 PM
anyone could help me out?