字节无法正确读取 [英] Byte not read correctly

问题描述

大家好。我试图从串口读取一个字节数据。我从高级串口监视器读取的数据是正确的但是当我尝试使用C＃读取数据时，会读取不正确的数据。这是我的一段代码

 

SerialPort serialPort1 = new SerialPort（" COM3"， 19200，Parity.None，8）;

serialPort1.PortName =" COM3";

serialPort1。 BaudRate = 19200;

serialPort1.DataBits = 8;

serialPort1.Parity = Parity.None;

serialPort1.StopBits = StopBits.One;

int received_byte;

 

while（true）

{

< p style ="">尝试

{

serialPort1.Open（）;

received_byte = serialPort1.ReadByte（）;

textBox1.Text = received_byte.ToString（）;

//进行一些数据处理

 

}

catch（System.Exception ex）

{

label1.Text = ex.Message;

}

  serialPort1.Close（）;

}

任何人都可以建议任何解决方案。

Thanx

Ahsan

解决方案

试试这个

SerialPort serialport1 = new SerialPort（ "COM3"，19200，Parity.None，8，StopBits.One）;

byte [] rcvByte = new byte [1];  //因为你想要读取1个字节的数据

serialport1.Open（）;

serialport1.Read（rcvByte，0，rcvByte.Length ）;

serialport1.Close（）;

rcvByte将包含接收数据的字节。

Hello everyone. I am trying to read one byte data from the serial port. The data I read from Advanced serial port monitor is correct but when I try to read the data using C#, incorrect data is read. Here is a piece of my code

 

SerialPort serialPort1 = new SerialPort("COM3", 19200, Parity.None, 8);

serialPort1.PortName = "COM3";

serialPort1.BaudRate = 19200;

serialPort1.DataBits = 8;

serialPort1.Parity = Parity.None;

serialPort1.StopBits = StopBits.One;

int received_byte;

 

while (true)

{

try

{

serialPort1.Open();

received_byte = serialPort1.ReadByte();

textBox1.Text=received_byte.ToString();

//do some processing of data

 

}

catch (System.Exception ex)

{

label1.Text = ex.Message;

}

 serialPort1.Close();

}

Can anyone suggest any solution plz.

Thanx

Ahsan

解决方案

try this

SerialPort serialport1=new SerialPort("COM3",19200,Parity.None,8,StopBits.One);

byte[] rcvByte=new byte[1];  //since you want to read 1 byte of data

serialport1.Open();

serialport1.Read(rcvByte,0,rcvByte.Length);

serialport1.Close();

rcvByte will have the byte of received data.

这篇关于字节无法正确读取的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！