MEMSIC MC3416设置中断c代码
时间: 2023-10-02 19:09:49 浏览: 46
以下是一个使用C语言设置MEMSIC MC3416中断的示例代码:
```c
#include <stdio.h>
#include <stdlib.h>
#include <stdint.h>
#include <unistd.h>
#include <fcntl.h>
#include <sys/ioctl.h>
#include <linux/i2c-dev.h>
#define I2C_BUS "/dev/i2c-1"
#define I2C_ADDRESS 0x4C
#define INTERRUPT_ENABLE_REG 0x01
#define INTERRUPT_THRESHOLD_REG 0x02
int main()
{
int file;
uint8_t buffer[2];
// 打开I2C总线
if ((file = open(I2C_BUS, O_RDWR)) < 0) {
perror("Failed to open I2C bus");
exit(1);
}
// 设置I2C从设备地址
if (ioctl(file, I2C_SLAVE, I2C_ADDRESS) < 0) {
perror("Failed to set I2C address");
exit(1);
}
// 使能中断输出
buffer[0] = INTERRUPT_ENABLE_REG;
buffer[1] = 0x01;
if (write(file, buffer, 2) != 2) {
perror("Failed to write to register");
exit(1);
}
// 设置中断触发阈值为50mg
buffer[0] = INTERRUPT_THRESHOLD_REG;
buffer[1] = 0x32;
if (write(file, buffer, 2) != 2) {
perror("Failed to write to register");
exit(1);
}
close(file);
return 0;
}
```
请注意,此示例代码仅演示了如何使用C语言设置MEMSIC MC3416中断。实际应用中,您需要根据您的具体需求进行修改。