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I have problem with flow control in serialPort. I am using FTDI cabel and I have connected it in this way : Tx<->Rx, CTS <-> RTS.I set handshake as request to send. In uC side I dont recive data because of I want to full up buffer. On PC side I send a lot of data in loop. I expected some error or stop of program on Write method, but PC all the time can to send data though full receiver buffor.
uC
public static SerialPort RS;
public static void Main()
{
RS = new SerialPort("COM1", 9600);
RS.Handshake = Handshake.RequestToSend;
//RS.DataReceived += new SerialDataReceivedEventHandler(RS_DataReceived);
RS.Open();
Thread.Sleep(Timeout.Infinite);
}
static void RS_DataReceived(object sender, SerialDataReceivedEventArgs e)
{
byte[] inpuBuffer = new byte[RS.BytesToRead];
RS.Read(inpuBuffer, 0, inpuBuffer.Length);
}
PC
private static SerialPort RS;
static void Main(string[] args)
{
RS = new SerialPort("COM3", 9600);
RS.Handshake = Handshake.RequestToSend;
RS.WriteTimeout = Timeout.Infinite;
RS.DataReceived += new SerialDataReceivedEventHandler(RS_DataReceived);
RS.ErrorReceived += new SerialErrorReceivedEventHandler(RS_ErrorReceived);
RS.DtrEnable = true;
RS.RtsEnable = true;
byte[] bytes = new byte[1024];
for (int i = 0; i < bytes.Length; i++)
{
bytes[i] = (byte)i;
}
RS.Open();
while (true)
{
RS.Write(bytes, 0, bytes.Length);
}
}
static void RS_ErrorReceived(object sender, SerialErrorReceivedEventArgs e)
{
throw new NotImplementedException();
}
static void RS_DataReceived(object sender, SerialDataReceivedEventArgs e)
{
//throw new NotImplementedException();
}
