Hello, Can a watchdog timer of AT89s8252 reset the CPU in case of program crash ??? .I couldnt find this info PLEASE HELP !! . Kind Regards JG
That is the whole point of a Watchdog Timer!
hi All, Thanks for reply Andrew ,But I need a little more clarification I am confused about the WDT working somewhere it is resetting the CPU after sensing the voltage drop and at some places it resets the cpu after sensing the program crash .Please tell me What method of WDT is being adopted in AT89s8252. Kind Regards JG
I think you are confusing a "supervisor", which monitors things like supply voltage, with a Watchdot Timer (WDT). A WDT is simply a timer which will reset the CPU if you allow it to time-out. Of course, some devices implement both a "supervisor" and a WDT (and also a Reset generator) into a single device - but the functions are distinct. I'm afraid I don't know the detail of the AT89s8252 - but I'm sure you can read the datasheet as well as I could!
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