text1.c

74h450最简单运用举例 protues 仿真

#include <regx51.h>
void main()
{
void delay(void);
P2_1=0;
P2_0=0;
P1=0xFF;
delay();
P1=0x00;
delay();

}
void delay()
{unsigned char i,j;
for (i=0;i<255;i++)
  for (j=0;j<255;j++); 
}