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() 和 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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