Help identifying Motorola chip

Asylumwarp · Post by **Asylumwarp** » Fri May 27, 2022 3:52 am

Both of these chips have been identified and are in the p12 and e40 ecms. The main chip is a mc68377 and the little chip is the mc68f375 and we have bdm diagrams for both already.

darkman5001 · Post by **darkman5001** » Fri May 27, 2022 11:04 am

Asylumwarp wrote:Both of these chips have been identified and are in the p12 and e40 ecms. The main chip is a mc68377 and the little chip is the mc68f375 and we have bdm diagrams for both already.

I would be very interested in seeing these BDM diagrams, especially for the P12. I can tell you with 100% certainty that the BDM pin locations are different for the two boards, as I have compared the two boards and they are different. I have been unsuccessful in finding a BDM diagram for the P12.

j_ds_au · Post by **j_ds_au** » Tue May 31, 2022 2:34 pm

Silly question ... what's a BDM diagram?

Joe.

Post by **antus** » Tue May 31, 2022 3:16 pm

An image showing you where to connect your BDM interface to a PCM. https://wikipedia.org/wiki/Background_d ... _interface

https://youtube.com/c/usbbdm

j_ds_au · Post by **j_ds_au** » Tue Jun 07, 2022 4:56 pm

antus wrote:An image showing you where to connect your BDM interface to a PCM. https://wikipedia.org/wiki/Background_d ... _interface

https://youtube.com/c/usbbdm

Cool, thanks Antus!

Sounds similar to debugWIRE on the AVR micros. Sometimes I get lost in all the TLA's.

Joe.

Help identifying Motorola chip

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