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Old 06-10-2013, 04:33 AM   #1
sushantbhangale
LQ Newbie
 
Registered: Aug 2012
Posts: 4

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Not working on the ARM board


Code:
char buff[255];
        fd = open("/dev/ttyUSB0", O_RDWR | O_NOCTTY | O_NDELAY |O_TRUNC);
        if (fd == -1){
                printf("Can't open port!\n");
                return 1;
        }
        else {

                while (1)
                {
                        send(fd,"NULL");
                        char st[100];
                       memset(st,'\0',sizeof(st));
                         buff[0] = '\0';
                        send(fd, "AT\r\n");
                        sleep(1);
                        size = read(fd,buff,255);
                        printf("GOT:%s",buff);
                        if(buff[0]=='E')
                        {
                                return -1;
                        }
                }
 
Old 06-10-2013, 01:22 PM   #2
michaelk
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Registered: Aug 2002
Posts: 16,126

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Please post your thread in only one forum. Posting a single thread in the most relevant forum will make it easier for members to help you and will keep the discussion in one place. This thread is being closed because it is a duplicate.

Continue here:
http://www.linuxquestions.org/questi...rd-4175464834/
 
  


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