Hi guys,
I have a product based on an AT89C51 form Atmel and a lot of code on board (GSM Modem connection, I/O, CAN Interfaces etc). 99.99% of the time it is all fine and works reliably BUT very occasionally we get a crash.
We recover from it and restart successfully and in most cases no one even knows it happens.
I was wondering if anyone knows of any way of getting any crash data out of the 51? I have FRAM and EEPROM that could be usef for storage but the reset (of course) resets all the registers and any trace of the fault is lost.
Is there anyway of suspending the core here in the test lab so that we can catch the crash?
Cheers for any help,
Dirk