Copy Protective STM8S103F3P3 Microprocessor Flash Heximal from its secured flash memory, the security fuse of STM8S103F3 will be broken off from its internal microcontroller, and unlock mcu stm8s103f3 flash memory;

The window watchdog is used to detect the occurrence of a software fault, usually generated by external interferences or by unexpected logical conditions, which cause the application program to abandon its normal sequence.

The window function can be used to trim the watchdog behavior to match the application perfectly.

The application software must refresh the counter before time-out and during a limited time window.

A reset is generated in two situations:

Timeout: at 16 MHz CPU clock the time-out period can be adjusted between 75 µs up to 64 ms and readout protective software data from stm8s003k3 microprocessor.

Refresh out of window: the down-counter is refreshed before its value is lower than the one stored in the window register.

The independent watchdog peripheral can be used to resolve processor malfunctions due to hardware or software failures.

It is clocked by the 128 kHz LSI internal RC clock source, and thus stays active even in case of a CPU clock failure

The IWDG time base spans from 60 µs to 1 s.