IWDG is not working

It works. You either didn't enable it or have incorrect settings. But since you posted no code and no info apart from that you enabled it, we can only guess at what the problem is.

My iwdg enable code is as follow:​

​

void

WatchDog_Config (void)

{

 /* Enable write access to IWDG_PR and IWDG_RLR registers */

 IWDG_WriteAccessCmd(IWDG_WriteAccess_Enable);

​

 /* IWDG counter clock */

 IWDG_SetPrescaler(IWDG_Prescaler_32);

​

 IWDG_SetReload(96000000L/32);

​

 /* Reload IWDG counter */

 IWDG_ReloadCounter();

​

 /* Enable IWDG (the LSI oscillator will be enabled by hardware) */

 IWDG_Enable();

​

DBG ("IWDG Started\n");

}

​

BR

Paul

IWDG_SetReload(96000000L/32);

The RLR register is 12 bits.

And even if the value wasn't out of range, your IWDG would take 40 hours to trigger a reset.

96000000/32*32/40kHz = 40 hours