I'm running a series of environmental tests to see at what temp/voltage the microcontroller fails outright. I'm currently exercising all the peripherals (timers, comms, et el) within my test loop. However, a routine that runs through the entire instruction set and gives me a constant result would give me more confidence when observing a failure, ie that this it is the absolute failure point, as I would be concerned that I could have missed something otherwise.

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