BDM Protocol - MPC5xx

[pedrooliveirajr]

Hi there,

Are there BDM Protocol documentation structure and some hardware/firmware commands to send over BDM mode and read flash content (for example read a byte)? I could find for HCS12 microcontroller (This link) but I need it for MPC5xx (specifically MPC562MZP56).

[davidtosenovjan]

There is an appnote for this:

https://www.nxp.com/docs/en/application-note/AN2000.pdf

Unfortunately we cannot offer comprehensive support for these legacy family (MPC5xx) since we don’t have any expert and also SW and HW tools became obsolete.

[pedrooliveirajr]

Thank you for your reply.

I'm still trying to understand how to get from scratch. For example, I used some microcontrollers which have the bootstrap option where I send a 0x00 byte and receive a response with 0xD5 by serial communication (USART), after that I can send my own firmware to control the device. What I still couldn't understand was how I can control the microcontroller. Is it the same idea as I did with bootstrap sending a byte and later sending my own firmware? Or the microcontroller has some command (opcode) where I send it and the micro will send me back the data.