在c#中从串口读取数据

Reading Data from serial port in c#(在c#中从串口读取数据)

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问题描述

我正在尝试从串行端口读取数据.数据来自规模.我首先发送一个命令开始读取秤.

I am trying to read data from the serial port. The data comes off of a scale. I first send a command to start reading the scale.

_serialPort.Write("P");

然后等待一段时间后,我尝试使用阅读

then after waiting for some time I am trying to read using

temp2 = _serialPort.ReadLine();

应用程序在这行代码处挂起.我也尝试了读取功能,但得到了相同的结果.ReadExisting() 函数返回一个空字符串.

The application hangs at this line of code. I have also tried the Read function but am getting the same result. ReadExisting() function returns an empty string.

由于 ReadLine() 没有超时或抛出任何异常,我无法调试此问题,因为我没有更多信息.由于 WriteLine()ReadExisting() 正常工作,端口不会有缺陷.

As the ReadLine() is not timing out or throwing any exceptions I am unable to debug this issue as I have no further information. The port cannot be defective as WriteLine() and ReadExisting() are working.

任何帮助将不胜感激.

谢谢

推荐答案

在你的接收按钮后面试试这个:

Try this behind your recieve button:

string msg = serialObj.ReadExisting();
MessageBox.Show(msg);

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