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本帖最后由 jiangdou 于 2014-12-1 21:06 编辑
- //A13 A10 A20 TEST IS OK BY JIANGDOU
- // by jiangdou
- #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>
- /*Žò¿ªŽ®¿Úº¯Êý*/
- int open_port(int fd,int comport)
- {
- char *dev[]={"/dev/ttyS0","/dev/ttyS1","/dev/ttyS2"};
- long vdisable;
- if (comport==1)//Ž®¿Ú 1
- {
- fd = open( "/dev/ttyS0", O_RDWR|O_NOCTTY|O_NDELAY);
- if (-1 == fd){
- perror("Can't Open Serial Port");
- return(-1);
- }
- }
- else if(comport==2)//Ž®¿Ú 2
- {
- fd = open( "/dev/ttyS1", O_RDWR|O_NOCTTY|O_NDELAY);
- if (-1 == fd){
- perror("Can't Open Serial Port");
- return(-1);
- }
- }
- else if (comport==3)//Ž®¿Ú 3
- {
- fd = open( "/dev/ttyS2", O_RDWR|O_NOCTTY|O_NDELAY);
- if (-1 == fd){
- perror("Can't Open Serial Port");
- return(-1);
- }
- }
- /*»ÖžŽŽ®¿ÚΪ×èÈû׎̬*/
- if(fcntl(fd, F_SETFL, 0)<0)
- printf("fcntl failed!\n");
- else
- //printf("fcntl=%d\n",fcntl(fd, F_SETFL,0));
- /*²âÊÔÊÇ·ñΪÖÕ¶ËÉ豞*/
- if(isatty(STDIN_FILENO)==0)
- printf("standard input is not a terminal device\n");
- else
- //printf("isatty success!\n");
- //printf("fd-open=%d\n",fd);
- return fd;
- }
- ///////////////////////
- //set_opt
- //////////////////////
- int set_opt(int fd,int nSpeed, int nBits, char nEvent, int nStop)
- {
- struct termios newtio,oldtio;
- /*±£Žæ²âÊÔÏÖÓÐŽ®¿Ú²ÎÊýÉèÖÃ,ÔÚÕâÀïÈç¹ûŽ®¿ÚºÅµÈ³öŽí,»áÓÐÏà¹ØµÄ³öŽíÐÅÏ¢*/
- if ( tcgetattr( fd,&oldtio) != 0) {
- perror("SetupSerial 1");
- return -1;
- }
- bzero( &newtio, sizeof( newtio ) );
- /*²œÖèÒ»,ÉèÖÃ×Ö·ûŽóС*/
- newtio.c_cflag |= CLOCAL | CREAD;
- newtio.c_cflag &= ~CSIZE;
- /*ÉèÖÃֹͣλ*/
- switch( nBits )
- {
- case 7:
- newtio.c_cflag |= CS7;
- break;
- case 8:
- newtio.c_cflag |= CS8;
- break;
- }
- /*ÉèÖÃÆæŌУÑéλ*/
- switch( nEvent )
- {
- case 'O': //ÆæÊý
- newtio.c_cflag |= PARENB;
- newtio.c_cflag |= PARODD;
- newtio.c_iflag |= (INPCK | ISTRIP);
- break;
- case 'E': //ÅŒÊý
- newtio.c_iflag |= (INPCK | ISTRIP);
- newtio.c_cflag |= PARENB;
- newtio.c_cflag &= ~PARODD;
- break;
- case 'N': //ÎÞÆæŌУÑéλ
- newtio.c_cflag &= ~PARENB;
- break;
- }
- /*ÉèÖòšÌØÂÊ*/
- switch( nSpeed )
- {
- case 2400:
- cfsetispeed(&newtio, B2400);
- cfsetospeed(&newtio, B2400);
- break;
- case 4800:
- cfsetispeed(&newtio, B4800);
- cfsetospeed(&newtio, B4800);
- break;
- case 9600:
- cfsetispeed(&newtio, B9600);
- cfsetospeed(&newtio, B9600);
- break;
- case 115200:
- cfsetispeed(&newtio, B115200);
- cfsetospeed(&newtio, B115200);
- break;
- case 460800:
- cfsetispeed(&newtio, B460800);
- cfsetospeed(&newtio, B460800);
- break;
- default:
- cfsetispeed(&newtio, B9600);
- cfsetospeed(&newtio, B9600);
- break;
- }
- /*ÉèÖÃֹͣλ*/
- if( nStop == 1 )
- newtio.c_cflag &= ~CSTOPB;
- else if ( nStop == 2 )
- newtio.c_cflag |= CSTOPB;
- /*ÉèÖõȎýʱŒäºÍ×îСœÓÊÕ×Ö·û*/
- newtio.c_cc[VTIME] = 0;
- newtio.c_cc[VMIN] = 0;
- /*ŽŠÀíÎŽœÓÊÕ×Ö·û*/
- tcflush(fd,TCIFLUSH);
- /*Œ€»îÐÂÅäÖÃ*/
- if((tcsetattr(fd,TCSANOW,&newtio))!=0)
- {
- perror("com set error");
- return -1;
- }
- //printf("set done!\n");
- return 0;
- }
- int main(void)
- {
- int fd;
- int nwrite,i;
- char buff0[]="\n\r";
- char buff1[]="uart_test by jiang_dou QQ:344283973\n\r";
- char buff[80];
- if((fd=open_port(fd,2))<0)
- {//Žò¿ªŽ®¿Ú
- perror("open_port error");
- return;
- }
- if((i=set_opt(fd,115200,8,'N',1))<0){//ÉèÖÃŽ®¿Ú
- perror("set_opt error");
- return;
- }
- //printf("fd=%d\n",fd);
- printf("uart-test, baud is 115200, A13_PG03 is TX, A13_PG04 is RX\n\r");
- printf("uart test to starting. press 'enter 'key to continue.......\n");
- getchar();
-
-
- nwrite=write(fd,buff0,strlen(buff0));//ÐŽŽ®¿Ú
- for(i=0; i<2000; i++){
- sprintf(buff, "receive data_%d %s", i, buff1);
- printf("nwrite=%d,send data_%d %s\n",nwrite, i, buff1);
- nwrite=write(fd, buff, strlen(buff));//ÐŽŽ®¿Ú
- //buff = buff1;
- sleep(1);
- }
- close(fd);
- return;
- }
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