RTS0 Problem in WEC2013 XIPVYB_C8GE_V2.2_150513

I have problem to use RTS0 / COM1 in manual mode (C#)

public void ImpostaPorta485(String "COM1, int 9600)

{

if (this.sp485 != null) this.sp485.Close();

this.PortName485 = com;

this.BaudRate = baud;

this.sp485 = new SerialPort(this.PortName485, this.BaudRate, Parity.None, 8, StopBits.One);

this.sp485.Close();

this.sp485.ReceivedBytesThreshold = 1;

this.sp485.DataReceived += new SerialDataReceivedEventHandler(DatiRecevuti);

this.sp485.Open();

this.sp485.RtsEnable = true;

}

private void bTx485_Click(object sender, EventArgs e)

{

this.sp485.RtsEnable = false;

this.sp485.Write("Hello 485");

System.Threading.Thread.Sleep(8);

this.sp485.RtsEnable = true;

}

The state of RTS 0 Pin 15 does not change

[IMG:http://www.microitelectronics.com/Download/RTS.jpg]

I have try to set RS485=1 and UseRTSCTS=1, but the RTS does not work, is Always OFF
do you know another solution ?

Ok
I have fixed the problem.
RTS0 (pin 15) in PICOMA 5, work when I set in KEY regyster COM2
RS485=1
and
UseRTSCTS=1

Thanks

Now I have the problem with RTS polarity inversione:

Invert dword: This optional value specifies the polarity of Tx, Rx and RTS lines.

0x0 -> no polarity inversion at all (default)

0x1 -> Tx polarity inversion

0x2 -> Rx polarity inversion

0x4 -> RTS polarity inversion

I set the value Invert = 0x4, but the polarity does not change, Always 0 and go 1 when start the data transmit