1 #include <stdio.h> /*�������������*/
2 #include <stdlib.h> /*�������ⶨ��*/
3 #include <unistd.h> /*Unix����������*/
4 #include <sys/types.h> /**/
5 #include <sys/stat.h> /**/
6 #include <fcntl.h> /*�ļ����ƶ���*/
7 #include <termios.h> /*PPSIX�ն˿��ƶ���*/
8 #include <errno.h> /*����Ŷ���*/
9 #include <sys/time.h>
10 #include <string.h>
11 #include <getopt.h>
12
13 #define TRUE 1
14 #define FALSE -1
15
main(int argc,char ** argv)16 int main(int argc, char **argv)
17 {
18 int fd;
19 int nread;
20 char buffer[512];
21 int n=0,i=0;
22 char* dev = NULL;
23 struct termios oldtio,newtio;
24 speed_t speed = B115200;
25 int next_option,havearg = 0,flow = 0;
26 const char *const short_opt = "fd:";
27 const struct option long_opt[] = {
28 {"devices",1,NULL,'d'},
29 {"hard_flow",0,NULL,'f'},
30 {NULL,0,NULL,0},
31 };
32 do{
33 next_option = getopt_long(argc,argv,short_opt,long_opt,NULL);
34 switch (next_option) {
35 case 'd':
36 dev = optarg;
37 havearg = 1;
38 break;
39 case '?':
40 printf("usage: fltest_uarttest -d <uart_dev>\n");
41 break;
42 case -1:
43 if(havearg)
44 break;
45 default:
46 printf("usage: fltest_uarttest -d /dev/ttyS5 \n");
47 exit(1);
48
49 }
50 }while(next_option != -1);
51
52 if(dev == NULL)
53 {
54 printf("Please input seria device name ,for exmaple /dev/ttySAC0.\nNote:This is loop test application. Make sure that your serial is loop\n");
55
56 exit(1);
57 }
58 /* ������ */
59 fd = open(dev, O_RDWR | O_NONBLOCK| O_NOCTTY | O_NDELAY);
60 if (fd < 0) {
61 printf("Can't Open Serial Port!\n");
62 exit(0);
63 }
64
65 printf("Welcome to uart test\n");
66
67 //save to oldtio
68 tcgetattr(fd,&oldtio);
69 bzero(&newtio,sizeof(newtio));
70 newtio.c_cflag = speed|CS8|CLOCAL|CREAD;
71 newtio.c_cflag &= ~CSTOPB;
72 newtio.c_cflag &= ~PARENB;
73 newtio.c_iflag = IGNPAR;
74 newtio.c_oflag = 0;
75 tcflush(fd,TCIFLUSH);
76 tcsetattr(fd,TCSANOW,&newtio);
77 tcgetattr(fd,&oldtio);
78
79 memset(buffer,0,sizeof(buffer));
80
81 char test[100]="forlinx_uart_test.1234567890...";
82
83 printf("Send test data:\n%s\n",test);
84 write(fd, test, strlen(test) + 1);
85 fd_set rd;
86 while(1)
87 {
88 int ret;
89 nread = read(fd, &buffer[n], 1);
90 if (strlen(test) == strlen(buffer))
91 {
92 printf("Read Test Data finished,Read:\n%s\n",buffer);
93 memset(buffer,0,sizeof(buffer));
94 tcflush(fd, TCIOFLUSH);
95 break;
96 }
97 n += nread;
98 }
99 close(fd);
100 }
101
102
103