当然有termios.h
,但这里我说的是AT
命令。我希望他们被处决。
C
如何通过Linux向串口发送 AT 命令以便执行?
看看这个简短的例子(它有效):
struct termios options;
int fd;
fd = open("/dev/ttyS0", O_RDWR | O_NOCTTY | O_NDELAY);
if (fd < 0)
{
printf("Error opening serial port\n");
exit(1);
}
bzero(&options, sizeof(options));
options.c_cflag = B9600 | CS8 | CLOCAL | CREAD | IGNPAR;
tcflush(fd, TCIFLUSH);
tcsetattr(fd, TCSANOW, &options);
if (write(fd, "ATZ\r", 4) < 4)
{
printf("Write error - %s \n", strerror(errno));
exit (1);
}
// read back for OK or KO then do your stuff...
偶然发现这一点,可能会有所帮助:
http://en.wikibooks.org/wiki/Serial_Programming/Serial_Linux
也是 C 语言高级 Linux 编程的权威指南 http://www.advancedlinuxprogramming.com/alp-folder/