我有这段代码,但我不知道如何获取数据并将其放在一个变量中:
protected override void OnStart(string[] args)
{
/* This WaitHandle will allow us to shutdown the thread when
the OnStop method is called. */
_shutdownEvent = new ManualResetEvent(false);
/* Create the thread. Note that it will do its work in the
appropriately named DoWork method below. */
_thread = new Thread(DoWork);
/* Start the thread. */
_thread.Start();
}
然后在DoWork中,我有以下内容:
private void DoWork()
{
//opening serial port
SerialPort objSerialPort;
objSerialPort = new SerialPort();
objSerialPort.PortName = "COM2";
objSerialPort.BaudRate = 11500;
objSerialPort.Parity = Parity.None;
objSerialPort.DataBits = 16;
objSerialPort.StopBits = StopBits.One;
objSerialPort.Open();
所以,我打开了端口,但是从哪里开始获取数据呢?如何初始化变量?接收到的消息的格式为52 45 41 44 45 52 30 31,其中41 44 45 53 30是十六进制的消息,而52 45是报头和31 CRC。
请让我知道该怎么做。
谢谢 ....
使用串行端口就像使用文件或套接字一样:
while ((bytesRead = objSerialPort.Read(buffer, 0, buffer.Length)) > 0)
{
var checksum = buffer[bytesRead - 1];
if (VerifyChecksum(checksum, buffer, bytesRead)) // Check the checksum
{
DoSomethinWithData(buffer, bytesRead); // Do something with this bytes
}
}
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