Access to the port 'COM5' is denied.
从我的表单运行以下方法时,我收到以下错误消息。我尝试从设备管理器的端口设置中输入正确的波特率 9600。我也尝试过通过 Portmon 访问设备,但有一个错误阻止我连接。有什么办法可以解决这个问题吗?
//Fields
List<string> myReceivedLines = new List<string>();
//subscriber method for the port.DataReceived Event
private void DataReceivedHandler(object sender, System.IO.Ports.SerialDataReceivedEventArgs e)
{
SerialPort sp = (SerialPort)sender;
while (sp.BytesToRead > 0)
{
try
{
myReceivedLines.Add(sp.ReadLine());
}
catch (TimeoutException)
{
break;
}
}
}
protected override void SolveInstance(IGH_DataAccess DA)
{
string selectedportname = default(string);
DA.GetData(1, ref selectedportname);
int selectedbaudrate = default(int);
DA.GetData(2, ref selectedbaudrate);
bool connecttodevice = default(bool);
DA.GetData(3, ref connecttodevice);
port.DtrEnable = true; //enables the Data Terminal Ready (DTR) signal during serial communication (Handshaking)
port.Open(); //Open the port
if (!(port.IsOpen == true)) port.Open();
if (connecttodevice == true)
{
port.DataReceived += new SerialDataReceivedEventHandler(DataReceivedHandler);
DA.SetDataList(0, myReceivedLines);
}