STC12C5204AD单片机学习板看门狗应用程序。说明：1.当K1键被按下时，将执行一个死循环while(1) 该循环中不存在喂狗指令，单片机会因为看门狗定时器时间到而被强

行复位

2. 喂狗指令为WDT_CONTR=0x3b ,在看门定时器定时时间到之前，必须通过该指令对看门狗定时器清零，否则复位 -STC12C5204AD learning board watchdog microcontroller applications. Descr iption: 1. When the K1 key is pressed, will execute an infinite loop while (1)　feed the dog does not exist in the loop command, single-chip watchdog timer time because of being forced to reset　2 DOG instruction WDT_CONTR = 0x3b , to the janitor up time before the directive must be the watchdog timer is cleared, or reset