Advantech ADAM-5511 Manual page 281

void main ()
{
int MCR_Value, MCR_Params;
port_install(1);
:
:
port_enable_fifo(1);
//set MCR value=3 (RTS=1; DTR=1)
MCR_Params=3
port_set_modem_control_params(1, MCR_Params);
//get MCR value
MCR_Value=port_get_modem_control_status(1);
// MCR value must be 3
}
Register Description
Name
LSR Line Status
Register
LCR Line Control
Register
Bit7 Bit6 Bit5
Data Tx THR
Error Empty Empty
divisor Tx Force
latch Break parity
access
Bit4 Bit3 Bit2
Rx Break Framing Parity
Error Error
odd/even Parity Number
parity enable of
stop bit
Bit1 Bit0
Overrun RxRDY
Error
data length bits[1:0]