13.03.2009: Trionic7 BDM Connection

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13.03.2009: Trionic7 BDM Connection

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13.03.2009: Connectors
The BDM has a 10-pin connector, but not all pins are actually used, so what you really need is a 2x4 connector. I found this old PC motherboard and desoldered a couple of jumper bridges out of it.

[..^ up ^..]

Here's a brief guide on how to connect a BDM interface to a Trionic7 ECU.

BDM (stands for Background Debug Mode) is an electronic interface for debugging microcontrollers and other embedded systems. It allows direct access to circuit components. In our case, we will be using it to overwrite the flash memory on the Trionic ECU. Normally, connecting via the CAN bus is a more convenient way to flash it, but if that process fails, you end up with a dead ECU. The only way to revive it is by attaching a BDM controller. Guess what happened to me ;].