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The reset line on a computer or other digital circuit places the circuit in a well defined initial state. Most microcontrollers have a built-in power-up reset to start the CPU executing code and may also have external resets and watchdog timers to help recover from unexpected events.

3 votes

How to get an ARM M0+ controller to retain it's last executed instruction after reboot?

as some of the comments mentioned, continuing the program from the latest state is not going to work by just preserving the program counter. You would need to preserve the entire state of the program, …
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