Function uh_open_radio

src/microham.c:1165–1217

Number of stop bits must be 1 or 2. Number of data bits can be 5,6,7,8 Hardware handshake (rtscts) can be on of off. microHam devices ALWAYS use "no parity".

// microHam devices ALWAYS use "no parity".
//
int uh_open_radio(int baud, int databits, int stopbits, int rtscts)
{
    unsigned char string[5];
    int baudrateConst;

    if (!uh_is_initialized)
    {
        start_thread();

        if (!uh_is_initialized)
        {
            return -1;
        }
    }

    baudrateConst = 11059200 / baud ;
    string[0] = 0x01;
    string[1] = baudrateConst & 0xff ;
    string[2] = baudrateConst / 256 ;

    switch (stopbits)
    {
    case 1:  string[3] = 0x00; break;

    case 2:  string[3] = 0x40; break;

    default: return -1;
    }

    if (rtscts)
    {
        string[3] |= 0x10;
    }

    switch (databits)
    {
    case 5: break;

    case 6: string[3] |= 0x20; break;

    case 7: string[3] |= 0x40; break;

    case 8: string[3] |= 0x60; break;

    default: return -1;
    }

    string[4] = 0x81;
    writeControl(string, 5);

    uh_radio_in_use = 1;
    return uh_radio_pair[1];
}


void uh_set_ptt(int ptt)