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[/] [diogenes/] [tags/] [initial/] [diogenes/] [sim/] [sendb.c] - Rev 221
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#include <stdio.h> /* Standard input/output definitions */ #include <string.h> /* String function definitions */ #include <unistd.h> /* UNIX standard function definitions */ #include <fcntl.h> /* File control definitions */ #include <errno.h> /* Error number definitions */ #include <termios.h> /* POSIX terminal control definitions */ #include <curses.h> int getbaud(int fd) { struct termios termAttr; int inputSpeed = -1; speed_t baudRate; tcgetattr(fd, &termAttr); /* Get the input speed. */ baudRate = cfgetispeed(&termAttr); switch (baudRate) { case B0: inputSpeed = 0; break; case B50: inputSpeed = 50; break; case B110: inputSpeed = 110; break; case B134: inputSpeed = 134; break; case B150: inputSpeed = 150; break; case B200: inputSpeed = 200; break; case B300: inputSpeed = 300; break; case B600: inputSpeed = 600; break; case B1200: inputSpeed = 1200; break; case B1800: inputSpeed = 1800; break; case B2400: inputSpeed = 2400; break; case B4800: inputSpeed = 4800; break; case B9600: inputSpeed = 9600; break; case B19200: inputSpeed = 19200; break; case B38400: inputSpeed = 38400; break; case B115200: inputSpeed = 115200; break; } return inputSpeed; } int fd; int initport(int fd) { struct termios options; // Get the current options for the port... tcgetattr(fd, &options); // Set the baud rates to 19200... cfsetispeed(&options, B115200); cfsetospeed(&options, B115200); // Enable the receiver and set local mode... options.c_cflag |= (CLOCAL | CREAD); options.c_cflag &= ~PARENB; options.c_cflag &= ~CSTOPB; options.c_cflag &= ~CSIZE; options.c_cflag |= CS8; // Set the new options for the port... tcsetattr(fd, TCSANOW, &options); return 1; } int main(int argc, char **argv) { int ch, count=0; fd = open("/dev/ttyUSB0", O_RDWR | O_NOCTTY | O_NDELAY); if (fd == -1) { perror("open_port: Unable to open /dev/ttyUSB0 - "); return 1; } else { fcntl(fd, F_SETFL, 0); } printf("baud=%d\n", getbaud(fd)); initport(fd); printf("baud=%d\n", getbaud(fd)); while(((ch=getchar())!=-1) /*|| count<256*/) { // if(ch==-1) ch=0x00; // usleep(100); write(fd, &ch, 1); // printf("%02x ", ch); //fflush(stdout); count++; } puts("\n\n=>\n\n"); usleep(50000); // while((read(fd, &ch, 1)>0) && (getch()==ERR)) { // printf("%02x ", (unsigned char) ch); // fflush(stdout); // } close(fd); return 0; }
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