2333312_en-US

I have a project that cannot proceed with BDM communication

I use STM32F407VET6 with S9S12G64 chip, using BKGD + REST connection, but can not communicate with the BMD protocol, did not find the relevant manuals and communication protocol specification, can not be correct handshake, need technical support, or give me a copy of the corresponding manuals documents

I am using STM32F407VET6 and S9S12G64 chips, connected using BKGD+REST, but I am unable to communicate via BMD protocol. I have not found any relevant manuals or communication protocol specifications, so I cannot shake hands correctly. I need technical support or a corresponding manual document

Re: I have a project that cannot proceed with BDM communication

Hello.

The BDM protocol specification for the S9S12G64 is not in a separate document, but is included in the MC9S12G Family Reference Manual.

The

Please download the MC9S12GRMV1 documentation from the link below. Then check out Chapter 7, which contains the complete BDM protocol, handshake timing, command structure, and bit timing.

https://www.nxp.com.cn/docs/en/data-sheet/MC9S12GRMV1.pdf

If you have any other questions, feel free to contact us.