在我的本地机器上,
以下代码,
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.IO.Ports;
using System.Threading;
namespace OpenSerialPortTest
{
class Test
{
static void Main(string[] args)
{
foreach (String serialPortName in SerialPort.GetPortNames())
{
SerialPort serialPort = new SerialPort(serialPortName);
try
{
serialPort.Open(); // Line 19
Console.WriteLine(serialPort.PortName);
}
catch (Exception ex1)
{
Console.WriteLine(ex1);
try
{
serialPort.Close();
}
catch (Exception ex2)
{
Console.WriteLine(ex2);
}
}
}
Console.ReadLine();
}
}
}
会抛出以下ArgumentException
,
也就是说,
给定的端口名称不以 COM/com 开头或不解析为一个有效的串口.
The given port name does not start with COM/com or does not resolve to a valid serial port.
有人知道为什么会这样吗?
Does anybody know why this is happening?
看看http://social.msdn.microsoft.com/Forums/en/csharpgeneral/thread/35954173-2eeb-46af-bb3e-86840c6b5484
似乎问题在于那些 COM 端口被映射到其他东西并给出了这个奇怪的错误作为响应.
seems the problem was that those COM ports were mapped to something else and gives this strange error in response.
我遇到了完全相同的问题.我发现我有一个 Windows 打印机设置来使用相同的端口.一旦我更改了打印机设置中的端口,SerialPort.Open() 就起作用了.
I had exactly the same problem. I found that I had a windows printer setup to use the same port. As soon as I changed the port in the printers settings, the SerialPort.Open() worked.
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