从串口读取时裁剪的C＃richtextbox数据

Question

I am writing a C# program which could continuously take data from the serial port and immediately display it on the rich text box of WPF. The problem is that when I use the below code, the first bit of every HEX value is clipped and I get an output like (Say)

B 3C 3F 3F 3F 3F 3F 3F 3F 3F 3F 3F 3F 3F 3F 3F 3F 3F 3F 3F 3F 3F 3F 3F 3F 3F 3F 3F 3F 3F 3F 3F 3F 3F 

Instead of getting

0B 3C FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF.

Why is this happening and what mistake I am making? I have checked with Terminal software and the data that I am receiving is correct. It is only while displaying in my program where it clips the first bit.

Also how do I separate the first 2 and the last 2 bytes and stop it from being displayed on the richtextbox. The code is below:

 string received_data = serialPort1.ReadExisting();
char[] store_char_array = received_data.ToCharArray();
string display_text = "" ;
foreach (var i in store_char_array)
      {
         string hex_value = String.Format("{0:X}", Convert.ToUInt32(i));
  display_text += hex_value + " ";

 }

Invoke(new Action(() => richTextBox1.AppendText(display_text)));

Thanks in advance

Answer 1

It is a problem with encoding. You have to add this when you configure your serial port:

SerialPort.Encoding = System.Text.Encoding.GetEncoding(28591)