Synchronous communication requires that the clocks in the transmitting and receiving devices are synchronized – running at the same rate – so the receiver can sample the signal at the same time intervals used by the transmitter.
You also learned how to receive data from a COM port using C#.Synchronous serial communication describes a serial communication protocol in which "data is sent in a continuous stream at constant rate." This article taught you how to communicate with a COM port in C#. Return (Handshake)Enum.Parse(typeof(Handshake), handshake) Handshake = defaultPortHandshake.ToString() This.BeginInvoke(new SetTextDeleg(si_DataReceived), new object ):", defaultPortHandshake.ToString()) - The "si_DataReceived" method will be executed on the UI thread, which allows populating the textbox. Invokes the delegate on the UI thread, and sends the data that was received to the invoked method. We will now create the "sp_DataReceived" method that will be executed when data is received through the serial port, void sp_DataReceived(object sender, SerialDataReceivedEventArgs e) Private delegate void SetTextDeleg(string text) delegate is used to write to a UI control from a non-UI thread The delegate writes to the UI thread from a non-UI thread. However, to write this data to the TextBox on a form, we need to create a delegate.NET does not allow cross-thread action, so we need to use a delegate. Once you are ready to use the Serial Port, you will need to open it: // Opens serial port milliseconds _serialPort.ReadTimeout = 500 You can also set other options, such as the ReadTimeout and WriteTimeout. _serialPort.DataReceived += new SerialDataReceivedEventHandler(sp_DataReceived) To receive data, we will need to create an EventHandler for the "SerialDataReceivedEventHandler": // "sp_DataReceived" is a custom method that I have created - can be sent through the constructor of the SerialPort class all of the options for a serial device To create an instance of the SerialPort class, you pass the SerialPort options to the class's constructor. Implementation of the SerialPort class is very straightforward. NET 2.0 and above, Microsoft has added this support with the inclusion of the SerialPort class as part of the System.IO.Ports namespace. NET 1.1, you had to either use the Windows API or third-party control.
In the past, to communicate with a Serial Port using. We will be writing the received data to a TextBox on a form, so this will also deal with threading. This article will demonstrate how to write and receive data from a device connected to a serial port in C# and. The SerialPort class in C# allows you to communicate with a serial port in.
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