linux c串口代码
时间: 2023-03-30 09:03:49 浏览: 52
可以回答这个问题。在 Linux 中,可以使用串口编程来实现串口通信。常用的串口编程库有 termios 和 ioctl。下面是一个简单的串口通信代码示例:
```c
#include <stdio.h>
#include <stdlib.h>
#include <fcntl.h>
#include <termios.h>
#include <unistd.h>
int main()
{
int fd;
struct termios options;
fd = open("/dev/ttyS", O_RDWR | O_NOCTTY | O_NDELAY);
if (fd == -1) {
perror("open");
exit(EXIT_FAILURE);
}
fcntl(fd, F_SETFL, );
tcgetattr(fd, &options);
cfsetispeed(&options, B960);
cfsetospeed(&options, B960);
options.c_cflag |= (CLOCAL | CREAD);
options.c_cflag &= ~PARENB;
options.c_cflag &= ~CSTOPB;
options.c_cflag &= ~CSIZE;
options.c_cflag |= CS8;
options.c_lflag &= ~(ICANON | ECHO | ECHOE | ISIG);
tcsetattr(fd, TCSANOW, &options);
char buffer[255];
int n = read(fd, buffer, sizeof(buffer));
if (n > ) {
buffer[n] = '\';
printf("Received: %s\n", buffer);
}
close(fd);
return ;
}
```