Hello-
We have dozens of fielded units utilizing the above microcontroller with 1000's of hours logged with no issues. Recently, a unit was sent back as unresponsive. After debugging power rails and all other support circuitry (checked out good), the unit was reflashed and brought back to life. Unfortunately, the memory was not dumped prior to the reflash so "evidence" is likely overwritten. Are there any known issues with this part?
Environmentals below 80°C.
Power rails extremely clean.
Occasional writes to non-program memory (error logs - nothing)
Not an environment where radiation would be a concern.
Software did not initialize/configure clocks as oscillator was not being driven.
Other than a stray write to program memory (software issue), what could cause this? Brownout?
Thanks
-Bryan
