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uart_init.h
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uart_init.c
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <error.h>
#include <unistd.h>
#include <fcntl.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <termios.h>
int open_termios(char *dev)
{
int fd = -1;
if(-1 == (fd = open(dev,O_RDWR|O_NOCTTY|O_NONBLOCK)))
{
printf("open termios error!\n");
}
return fd;
}
int set_termios(int fd,long speed,char databit,char stopbit,char oebit)
{
struct termios newtio;
int err = -1;
//ÇåÁã½á¹¹Ìå
bzero(&newtio,sizeof(newtio));
//ÉèÖýÓÊÕʹÄÜ
newtio.c_cflag |= CLOCAL | CREAD;
// ÉèÖÃÊý¾Ýλ
switch(databit)
{
case 7:
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