main.c

MCU测试程序

	#include <AT89X52.h>	
	
///////////////////////////
void  InitCPU (void);


		

void main (void){

 

  	unsigned  char myNum;

			InitCPU();

	 while (1){
	   P0_0  = 1;
	 for ( myNum = 255; myNum>0 ; myNum--)   ;
	   P0_0 = 0;

	}
	   

}

 void InitCPU(void){

  IE = 0;
  PSW = 0;

 }