1. Function description
     1. IWDG reset function.


2. Use environment

     Software development environment: KEIL MDK-ARM V5.25

     Hardware environment:
         1. Developed based on the evaluation board N32L43XML-STB V1.0
         2. MCU: N32L436MBL7


3. Instructions for use
    
     System Configuration;
         1. IWDG clock source: LSI/32
         2. Timeout value: 250ms
         3. Indicator light: LED1 (PA8) LED3 (PB5)
            



     Instructions:
            1. After compiling under KEIL, it is burned to the evaluation board. After power on, the indicator LED3 keeps flashing. It shows that IWDG feeds the dog normally and the code runs normally.
                2. Change the Delay(249) function parameter to 250 or more, the whole system will always be in the reset state, and LED1 and LED3 will be on.


4. Matters needing attention
      If you use the writer to simulate, you need to turn on DBG_ConfigPeriph(DBG_IWDG_STOP,ENABLE);