delay_1vs.h

以51单片机为处理器

//1微秒定时
//#include<reg51.h>
//#include<intrins.h>
#define  LOAD_HIGH 0xff
#define  LOAD_LOW  0xff

void delay_1vs()
{ 
unsigned char second_count=1;
 TMOD=0x01;
 TH0=0xff;
 TL0=0xff;
 TF0=0;          
 TR0=1;         
 for(;;)
{
 TH0=0xff;
 TL0=0xff;
 while(!TF0);
 second_count--;
 if(!second_count)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            
 break;            //second_count为计数软中断；
 TF0=0;
} 
}