We are using an 'F2812 in a board that has been running for over a year. Recently we had to make some repairs to the system, and now I can no longer connect Code Composer to the processor. I receive an "Unrecoverable emulation error". My emulator is an SD510 PP+.
Interestingly, the processor responds to the SDConfig program. Also, the program runs from Flash normally. I just can't connect to it with Code Composer. I have connected to other systems with the emulator today, so everything else seems to be working normally.
My questions are:
1) Could the DSP be damaged, and still respond to the JTAG scan and run from Flash?
2) Is there some pattern I can look for in the JTAG data with my logic analyzer to know why it is failing?
Regards,
Bill