First of all, the correct way to open it.
void IWDG_Init(void) //Configure and start the watchdog
{
IWDG->KR = 0xcc; //Start independent watchdog
IWDG->KR = 0x55; //Write unlock
IWDG->PR = 0x06; //256 division
IWDG->RLR = 0xff; //Set reload register
IWDG->KR = 0xaa; //Lock and refresh
}
void IWDG_Feed(void) // Feed the dog
{
IWDG->KR = 0xaa;
}
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