LCD Experiment Study Notes (3): WATCH DOG-EEWORLD

Collect

　　The watchdog is used to prevent the program from running away. The program should feed the dog regularly. If the program runs away, it won't feed the dog. If the time to feed the dog is exceeded, the dog will generate a signal to reset the CPU. General programs do not require this mechanism, but this mechanism is required in special circumstances.

　　The watchdog is enabled by default. The dog counts down by itself and then automatically restarts the CPU.

/* WATCH DOG register watchdog register*/
#define WTCON (*(volatile unsigned long *)0x53000000)
#define WTDAT (*(volatile unsigned long *)0x53000004)
#define WTCNT (*(volatile unsigned long *)0x53000008)

void disable_watch_dog(void)

{

　　WTCON=0; //Set the WTCON value of the watchdog control register to 0 to turn off the watchdog.

}

Keywords：LCD Reference address：LCD Experiment Study Notes (3): WATCH DOG

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