#include "reg52.h"
#define LED P1
typedef unsigned int u16;
void Timer1Init(void)
{
TMOD = 0x10;
TH1 = (65536-50000)/256;
TL1 = (65536-50000)%256;
ET1 = 1;
EA = 1;
TR1 = 1;
}
int main(void)
{
Timer1Init();
LED = 0x80;
while(1);
return 0;
}
void Timer1(void) interrupt 1
{
static u16 count = 0;
TH1 = (65536-50000)/256;
TL1 = (65536-50000)%256;
count++;
if(count==2)
{
LED = LED>>1;
count = 0;
if(LED == 0x01);LED = 0x80;
}
}

C51单片机,定时器1,流水灯!为啥定时器不启动?代码哪里有问题呢?
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2条回答 默认 最新
- 老皮芽子 2021-10-11 23:15关注
35行改成
if(LED == 0x01) LED = 0x80;
中间多了一个;本回答被题主选为最佳回答 , 对您是否有帮助呢?解决 无用评论 打赏 举报