51单片机A发送字节到51单片机B,B收到数据通过P1口输出,实现流水灯
时间: 2024-02-18 19:04:29 浏览: 193
好的,这是一个简单的串口通信加流水灯控制的程序。以下是示例代码:
51单片机A发送代码:
```c
#include <reg51.h>
void main() {
// 设置串口通信参数
TMOD = 0x20;
TH1 = 0xFD;
SCON = 0x50;
TR1 = 1;
// 设置流水灯控制参数
P1 = 0xfe;
while(1) {
// 发送控制字节
SBUF = P1;
while(TI == 0); // 等待发送完成
TI = 0; // 清除发送中断标志位
// 等待一段时间
for(int i = 0; i < 30000; i++);
// 控制流水灯移位
P1 = P1 << 1 | 0x01;
}
}
```
51单片机B接收并控制流水灯代码:
```c
#include <reg51.h>
void main() {
// 设置串口通信参数
TMOD = 0x20;
TH1 = 0xFD;
SCON = 0x50;
TR1 = 1;
// 设置流水灯控制参数
P1 = 0xfe;
while(1) {
// 等待接收数据
while(RI == 0);
RI = 0; // 清除接收中断标志位
// 控制流水灯移位
P1 = SBUF;
P1 = P1 << 1 | 0x01;
}
}
```
其中,串口通信参数的设置需要根据具体硬件调整。
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