Dear TI support team:
Im am doing some final testing on equipment that uses TI DSP and suddenly the DSP stopped working (after leaving it alone for about 1 month in a clean room environment it is no longer responsive)
Nominally, in our architecture, the DSP should be taken out of reset by FPGA and then it should access external eeprom and copy program onto external SRAM, then run from SRAM.
There is no evidence at the moment that the nominal program ever starts executing.
So far, we have attempted:
- run nominal program using XDS510USB: failed with error 0x80000020/-1060 (fatal error during execution)
- run minimal program within IRAM only: worked initially, now also fails with same error, intermittently runs and gets stuck seemingly in external SRAM even though we program it not to go in there.
- sometimes we get error 0x80000008 /-1060 (breakpoint)
After several attempts of running a combination of debugger programs, we very ocassionally actually get the full code to run a few commands then crashes, the success of this seems very intermittent and mostly does not work, we cannot seem to get any repeatable behaviour out of the target.
We have attached screenshots of the errrors we are getting. Do you have any ideas as to how this may have happened or what minimal tests we can do to figure out whether DSP is working?
