; //启动定时器while(1){if(TF0==1){TF0=0; TH0=(65536-40000)/256; //恢复初值TL
2012-07-11 17:07
= 0xf0;//65536 - 10000 = 55536 TF0 = 0;//置溢出标志位为0 TR0 = 1;/
2021-11-23 17:06
= 0; j < 20; j++) //循环20次，即为1s { while(TF0 == 0); TF0 =
2021-11-22 16:51
写了一个51单片机的程序if(flag==0){while(TF0==0);TF0=0;i=P
2019-08-29 21:04
(TF0==0);//等待定时器溢出TF0=0;//清楚定时器0溢出标志TR0
2017-07-12 19:53
(){ TH0=(65536-100)/256; TL0=(65536-100)%256; TR0=1;//启动定时器，开始计时 while(TF0!=1);//判断定
2021-11-20 17:21
(){ delay1();while(1){ if(TF0 == 1) { TF0 = 0; TH0 = 0;TL
2019-04-21 22:07
=0xFE;unsigned int cnt=0;void main(){ TMOD=0x01; TH0=0xB1; T
2016-10-15 23:59
定时器模式 TMOD |= 0x01; //设置定时器模式 TL0 = 0x66; //设置定时初始值 TH0 = 0
2021-11-23 17:21
) { if(TF0==1) { TF0=0; TH0=(65536-40000)/256; //恢复初值 TL0=(
2012-02-21 09:51
