编写MPU6050(I2C接口的陀螺仪)的寄存器访问程序 C语言代码
时间: 2024-05-02 20:19:06 浏览: 14
没问题,以下是简单的 MPU6050 寄存器访问程序 C 代码:
```c
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <fcntl.h>
#include <string.h>
#include <linux/i2c-dev.h>
#include <sys/ioctl.h>
#define MPU6050_I2C_ADDRESS 0x68
#define MPU6050_WHO_AM_I 0x75
int main() {
int file;
char *filename = "/dev/i2c-1";
if ((file = open(filename, O_RDWR)) < 0) {
printf("Failed to open i2c bus\n");
exit(1);
}
if (ioctl(file, I2C_SLAVE, MPU6050_I2C_ADDRESS) < 0) {
printf("Failed to acquire bus access and/or talk to slave\n");
exit(1);
}
char writeBuffer[1] = {MPU6050_WHO_AM_I};
if (write(file, writeBuffer, 1) != 1) {
printf("Failed to write to the i2c bus\n");
exit(1);
}
char readBuffer[1];
if (read(file, readBuffer, 1) != 1) {
printf("Failed to read from the i2c bus\n");
exit(1);
}
printf("Device ID: %d\n", readBuffer[0]);
close(file);
return 0;
}
```
希望能够帮到你!
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