4-1.c

来自「这是HOLTEK HT 48系列单片机应用实例」· C语言 代码 · 共 17 行

unsigned char _pac @ 0x13;
unsigned char _pa  @ 0x12;
#define _pa7	_12_7
void delay()
{unsigned int i;  for(i=0;i<250;i++);}
void main()
{
 _pac = 0x00;
while(1)
 {
  _pa7 = 1;
  delay();
  _pa7 = 0;
  delay();
 }
}