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/******************************************
Filename : serial_read.c
Function : read with serial port
Author : wanxiao
Date : 2010-5-7
******************************************/
#include <stdio.h>
#include <string.h>
#include <sys/types.h>
#include <errno.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>
#include <termios.h>
#include <stdlib.h>
int set_opt(int fd, int nSpeed, int nBits, char nEvent, int nStop);
int open_port(int fd, int comport);
int main(void)
{
int fd;
int nread , nwrite;
int i;
char buff[8];
fd_set rd;
if((fd = open_port(fd,1)) < 0)
{
perror("open_port error");
return ;
}
if((i = set_opt(fd,115200,8,'N',1)) < 0)
{
perror("set_opt error");
return ;
}
FD_ZERO(&rd);
FD_SET(fd,&rd);
while(FD_ISSET(fd,&rd))
{
if(select(fd+1,&rd,NULL,NULL,NULL) < 0){
perror("select");
}
else{
while((nread = read(fd,buff,8)) > 0)
{
printf("nread=%d,%s\n",nread,buff);
}
}
}
close(fd);
return ;
}
/******************************************
Filename : serial_write.c
Function : communication with serial port
Author : wanxiao
Date : 2010-5-7
******************************************/
#include <stdio.h>
#include <string.h>
#include <sys/types.h>
#include <errno.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>
#include <termios.h>
#include <stdli
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