int setup_serial_port()
{
struct termios newtio;
char serialPort[32];
ini_gets("sms","usbserial","/dev/ttyUSB0", serialPort, sizeof(serialPort), inifile);
info("Using serial device %s", serialPort);
g_serial_fd = open(serialPort, O_RDWR | O_NOCTTY | O_NDELAY);
die_if(g_serial_fd < 0, "Unable to open the serial port %s",serialPort);
if(flock(g_serial_fd, LOCK_EX | LOCK_NB) == -1) {
close(g_serial_fd);
die_strerror("Serial port %s in use", serialPort);
}
bzero(&newtio, sizeof(newtio));
newtio.c_cflag = getBaud() | CRTSCTS | CS8 | CLOCAL | CREAD | O_NDELAY;
// uncomment next line to disable hardware handshake
newtio.c_cflag &= ~CRTSCTS;
newtio.c_iflag = IGNPAR;
newtio.c_oflag = 0;
newtio.c_lflag = 0;
newtio.c_cc[VTIME] = 1;
newtio.c_cc[VMIN] = 0; /* no blocking read */
tcflush(g_serial_fd, TCIOFLUSH);
tcsetattr(g_serial_fd, TCSANOW, &newtio);
return g_serial_fd;
}
void
SerialPort::getSerial(int& baud, int& dataBits, int& parity, int& stopBits)
{
baud = getBaud();
dataBits = getDataBits();
parity = getParity();
stopBits = getStopBits();
}
int main ( void )
{
int fd;
FILE *of;
int totalTime_ms = 0;
int bytes, status;
struct termios oldtio;
unsigned short seqNo = 0;
unsigned short diTime = getDotTimeIn_ms(wpm, 0);
printf( "Baud %d %f\n", wpm, getBaud(wpm, 0) );
printf( "Dot time %d %f\n", wpm, (float) diTime);
printf( "Char rate %d\n", wpm * 5 );
of = fopen( "out.vcd", "w" );
if ( NULL == of ) {
fprintf( stderr, "Error opening file!\n" );
exit ( 0 );
}
/*
Open modem device for reading and writing and not as controlling tty
because we don't want to get killed if linenoise sends CTRL-C.
*/
fd = open(MODEMDEVICE, O_RDWR | O_NOCTTY );
if ( fd < 0 ) {
perror(MODEMDEVICE); exit( -1 );
}
tcgetattr( fd, &oldtio ); /* save current serial port settings */
asyncInit( fd );
ioctl(fd, TIOCMGET, &status);
status |= TIOCM_DTR;
ioctl(fd, TIOCMSET, status); // Ensure the Arduino is not held in reset
read( fd, buf, BUFSIZE );
if ( '>' != buf[0] ) {
printf( "Wrong start promt!\n" );
exit( 0 );
}
// write( fd, "?", 1 ); // Send something to shake up the uart.
printf("Init done\n");
int n = 0;
for ( int i = 0; i < strlen(msg); i++ ) {
int j;
if ( ' ' != msg[i] ) {
char * p;
if( isdigit( msg[i] ) ) p = digits[msg[i] - '0'];
else p = alphas[msg[i] - 'A'];
for ( j = 0; j < strlen(p); j++ ) {
if ('.' == p[j] ) {
printf ( "/%d", di_ );
n += sprintf( buf+n, "/%d\n", di_ * diTime );
totalTime_ms += di_ * diTime;
}
else if ( '-' == p[j] ) {
printf ( "/%d", da_ );
n += sprintf( buf+n, "/%d\n", da_ * diTime );
totalTime_ms += da_ * diTime;
}
else printf ("? " );
if ( j < (strlen(p) - 1)) {
printf("\\%d", markSpace_ );
n += sprintf( buf+n, "\\%d\n", markSpace_ * diTime );
totalTime_ms += markSpace_ * diTime;
}
}
if ( msg[i+1] != ' ' ) {
printf ("\\%d", charSpace_ );
n += sprintf( buf+n, "\\%d\n", charSpace_ * diTime );
totalTime_ms += charSpace_ * diTime;
}
}
else {
printf ("\\%d", wordSpace_ );
n += sprintf( buf+n, "\\%d\n", wordSpace_ * diTime );
totalTime_ms += wordSpace_ * diTime;
}
}
#if 0
char buf[256];
sprintfSeqNo_(buf, 0xa5a5 );
printf("Res: %s\n", buf );
sprintfTime_(buf, 0x66a5a5 );
#endif
printf("\nSequence count %d:\n%s\n", seqNo, buf );
printf("Total time %f s\n", totalTime_ms/1000. );
#if 0
ioctl(fd, FIONREAD, &bytes);
if (2 != bytes) {
printf( "No start!\n");
exit(0);
}
#endif
// for (int k= 0; k<100; k++)
bytes = write( fd, buf, strlen(buf) );
printf ( "%ld bytes to write, %d bytes written,\n", strlen(buf), bytes );
tcdrain( fd );
sleep( ( totalTime_ms + 500 ) / 1000 );
ioctl(fd, FIONREAD, &bytes);
printf( "Bytes in buffer %d\n", bytes );
/* restore the old port settings */
memset(buf, 0, BUFSIZE );
read( fd, buf, BUFSIZE );
printf ("Read from tty:\n");
printf ("%s\n", buf);
writeVcdHead( of );
fprintf ( of, "%s", buf );
fclose( of );
write( fd, "?", 1 );
sleep( 1 );
memset(buf, 0, BUFSIZE );
read( fd, buf, BUFSIZE );
printf ("%s\n", buf);
tcsetattr(fd, TCSANOW, &oldtio);
return 0;
}
