MPU6050和51单片机串口通信,串口COM3,波特率9600,数据位8,停止位1,无奇偶校验,串口助手显示
时间: 2023-05-28 07:07:56 浏览: 279
以下是MPU6050和51单片机串口通信的示例代码:
```c
#include <reg51.h>
#define MPU6050_ADDRESS 0x68
#define MPU6050_RA_ACCEL_XOUT_H 0x3B
sbit LED=P1^0;
void delay_ms(unsigned int xms)
{
unsigned char i, j;
for(i=xms;i>0;i--)
for(j=110;j>0;j--);
}
void init_uart()
{
SCON = 0x50;
TMOD = 0x20;
TH1 = 0xFD;
TL1 = TH1;
TR1 = 1;
}
void send_byte(unsigned char byte)
{
SBUF = byte;
while(!TI);
TI = 0;
}
void send_string(unsigned char *str)
{
while(*str)
{
send_byte(*str++);
}
}
void main()
{
unsigned char buf[6];
unsigned short accel_x;
unsigned short accel_y;
unsigned short accel_z;
unsigned char i;
init_uart();
while(1)
{
LED = ~LED;
// 读取加速度计数据
buf[0] = 0;
for(i=0;i<6;i++)
{
while(!TI);
TI = 0;
SBUF = MPU6050_RA_ACCEL_XOUT_H + i;
while(!RI);
RI = 0;
buf[i] = SBUF;
}
// 将数据转换为加速度值
accel_x = (buf[0] << 8) | buf[1];
accel_y = (buf[2] << 8) | buf[3];
accel_z = (buf[4] << 8) | buf[5];
// 发送加速度值到串口
send_string("accel_x = ");
send_byte((accel_x >> 8) & 0xFF);
send_byte(accel_x & 0xFF);
send_string("\r\n");
send_string("accel_y = ");
send_byte((accel_y >> 8) & 0xFF);
send_byte(accel_y & 0xFF);
send_string("\r\n");
send_string("accel_z = ");
send_byte((accel_z >> 8) & 0xFF);
send_byte(accel_z & 0xFF);
send_string("\r\n");
delay_ms(1000);
}
}
```
在串口助手中,设置串口参数为COM3、波特率为9600、数据位为8、停止位为1、无奇偶校验。然后,打开串口助手,就可以看到MPU6050传输的加速度数据了。
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