串口程序控制LED 用串口调试助手只能发送一次再发送没反应
时间:10-02
整理:3721RD
点击:
#include<reg52.h>
#define uchar unsigned char
#define uint unsigned int
uchar flag,a;
void main()
{
TMOD=0x20;
TH1=0xfd;
TL1=0xfd;
TR1=1;
SM0=0;
SM1=1;
REN=1;
EA=1;
ES=1;
while(1)
{
}
}
void servise() interrupt 4
{
RI=0;
P2=SBUF;
}
#define uchar unsigned char
#define uint unsigned int
uchar flag,a;
void main()
{
TMOD=0x20;
TH1=0xfd;
TL1=0xfd;
TR1=1;
SM0=0;
SM1=1;
REN=1;
EA=1;
ES=1;
while(1)
{
}
}
void servise() interrupt 4
{
RI=0;
P2=SBUF;
}
我要看看啊!
好难啊,看不懂呢