SerialPort::BaudRate Property
Gets or sets the serial baud rate.
Assembly: System (in System.dll)
public: [BrowsableAttribute(true)] property int BaudRate { int get(); void set(int value); }
| Exception | Condition |
|---|---|
| ArgumentOutOfRangeException | The baud rate specified is less than or equal to zero, or is greater than the maximum allowable baud rate for the device. |
| IOException | The port is in an invalid state. - or - An attempt to set the state of the underlying port failed. For example, the parameters passed from this SerialPort object were invalid. |
The baud rate must be supported by the user's serial driver. The default value is 9600 bits per second (bps).
The following example shows how to set the BaudRate property to 9600.
SerialPort^ mySerialPort = gcnew SerialPort("COM1"); mySerialPort->BaudRate = 9600; mySerialPort->Parity = Parity::None; mySerialPort->StopBits = StopBits::One; mySerialPort->DataBits = 8; mySerialPort->Handshake = Handshake::None; mySerialPort->RtsEnable = true;
The following example demonstrates the use of the SerialPort class to allow two users to chat from two separate computers connected by a null modem cable. In this example, the users are prompted for the port settings and a username before chatting. This code example is part of a larger code example provided for the SerialPort class.
public: static void Main() { String^ name; String^ message; StringComparer^ stringComparer = StringComparer::OrdinalIgnoreCase; Thread^ readThread = gcnew Thread(gcnew ThreadStart(PortChat::Read)); // Create a new SerialPort object with default settings. _serialPort = gcnew SerialPort(); // Allow the user to set the appropriate properties. _serialPort->PortName = SetPortName(_serialPort->PortName); _serialPort->BaudRate = SetPortBaudRate(_serialPort->BaudRate); _serialPort->Parity = SetPortParity(_serialPort->Parity); _serialPort->DataBits = SetPortDataBits(_serialPort->DataBits); _serialPort->StopBits = SetPortStopBits(_serialPort->StopBits); _serialPort->Handshake = SetPortHandshake(_serialPort->Handshake); // Set the read/write timeouts _serialPort->ReadTimeout = 500; _serialPort->WriteTimeout = 500; _serialPort->Open(); _continue = true; readThread->Start(); Console::Write("Name: "); name = Console::ReadLine(); Console::WriteLine("Type QUIT to exit"); while (_continue) { message = Console::ReadLine(); if (stringComparer->Equals("quit", message)) { _continue = false; } else { _serialPort->WriteLine( String::Format("<{0}>: {1}", name, message) ); } } readThread->Join(); _serialPort->Close(); } static void Read() { while (_continue) { try { String^ message = _serialPort->ReadLine(); Console::WriteLine(message); } catch (TimeoutException ^) { } } }
Available since 2.0