re_time.c

遥控时间定时小程序

//-----560us:time=61;nop=1;----------;
//-----883us:time=109;nop=0;---------;
//-----528us:time=47;nop=3;----------;
//-----843us:time=104;nop=0;---------;
//
//9028-021,022,023,021A:560us,4.5ms,
//PT2222:4.5ms,9ms,560us,2.25ms,
//LC7461:4.5ms,9ms,560us,
//M34280:4.22ms,8.44ms,528us,
//SAA3010T:844us,

#include<reg51.h>
#include<intrins.h>

void us_time(unsigned char time);
void ms_time(unsigned char time);

void main(){
while(1){
	P1=0xff;
	us_time(104);
	P1=0x00;
	}
	}

//sum_time=((8+nop)*time+5+2+2+2)(us)
void us_time(unsigned char time)	
{
	unsigned char buff;
	for(buff=0;buff<time;buff++)  
	{/*nop*/ ;}
}

//sum_time=(((3+nop1)*buf_max+10+nop)*time+11)(us)
void ms_time(unsigned char time)	
{
	unsigned char buff,buf;
	for(buff=0;buff<time;buff++){
		/*nop*/
 		for(buf=0;buf<10/*(buf_max=200)*/;buf++)
		{/*nop1*/;}
	}
 }

 //9ms:		buf_max=30;	time=89;nop1=0;nop=1;
 //4.499ms:	buf_max=30;	time=44;nop1=0;nop=2;
 //8.441ms:	buf_max=208;time=10;nop1=1;nop=1;
 //4.22ms:	buf_max=232;time=3;	nop1=3;nop=1;
 //2.251ms:	buff_max=10;time=56;nop1=0;nop=0;