Recover from cpu lock-up ?

[krpz]

Could you please explain me how a recover from a cpu lock-up procedure works in pic microcontrollers?

 

[nsaspook]

Could you please explain me how a recover from a cpu lock-up procedure works in pic microcontrollers?

If this is not about Code Protection:

The normal way to handle abnormal program execution recovery is with the Watch-Dog timer.

https://www.electro-tech-online.com/custompdfs/2013/03/31026a.pdf
https://www.embedded.com/electronics-blogs/beginner-s-corner/4023849/Introduction-to-Watchdog-Timers

 

[misterT]

If you are talking about Code Protection fuse bits, then only full chip erase releases the protection.

 

[krpz]

Thank you nsaspook for the links, i am going to read them now.