Read(Byte[], Int32, Int32) 從SerialPort輸入緩衝區讀取大量位元組,並將它們寫入指定位移上的位元組陣列。 C# publicintRead(byte[] buffer,intoffset,intcount); 參數 buffer Byte[] 要寫入輸入的位元組陣列。 offset Int32 buffer中要寫入位元組的位移。
总结起来,要提高SerialPort.read()方法的速度,可以通过调整波特率、增加缓冲区大小、优化数据处理逻辑以及解决硬件问题等方式来改善。另外,腾讯云提供了一系列云计算相关产品,如云服务器、云数据库等,可以根据具体需求选择适合的产品来支持应用的开发和部署。 参考链接:...
public int Read (byte[] buffer, int offset, int count); Parameters buffer Byte[] The byte array to write the input to. offset Int32 The offset in buffer at which to write the bytes. count Int32 The maximum number of bytes to read. Fewer bytes are read if count is greater ...
publicintRead(byte[] buffer,intoffset,intcount); Parameters buffer Byte[] The byte array to write the input to. offset Int32 The offset inbufferat which to write the bytes. count Int32 The maximum number of bytes to read. Fewer bytes are read ifcountis greater than the number of bytes...
public int Read (byte[] buffer, int offset, int count); Parameters buffer Byte[] The byte array to write the input to. offset Int32 The offset in buffer at which to write the bytes. count Int32 The maximum number of bytes to read. Fewer bytes are read if count is greater than...
if(serialport.ByteToRead>0){ serialport.read(read,0,serialport.ByteToRead)} 清没清自己看下读取前后 serialport.ByteToRead 这个属性就好了
(); IsOpen = true; } catch { IsOpen = false; } } private static void _serialDevice_DataReceived(object sender, SerialDataReceivedEventArgs e) { try { var serialPort = (SerialPort)sender; byte[] buffer = new byte[serialPort.BytesToRead]; serialPort.Read(buffer, 0, buffer.Length); } ...
发送数据时可以采用serialPort.Write()方法,或者serialPort.WriteLine()方法,接受数据采用serialPort.Read()和serialPort.ReadLine()方法。 serialPort.WriteLine()和serialPort.Write()两者的区别是前者是阻塞式的,如果接收方没有及时读取数据,就会引起TimeoutException异常,这跟serialPort.ReadLine()是一样的,serialPort...
(_serialPort.Handshake); // Set the read/write timeouts _serialPort.ReadTimeout = 500; _serialPort.WriteTimeout = 500; _serialPort.Open(); _continue = true; readThread.Start(); Console.Write("Name: "); name = Console.ReadLine(); Console.WriteLine("Type QUIT to exit"); while (_...
{ _serialPort.WriteLine( String.Format("<{0}>: {1}", name, message)); } } readThread.Join(); _serialPort.Close(); } public static void Read() { while (_continue) { try { string message = _serialPort.ReadLine(); Console.WriteLine(message); } catch (TimeoutException) { } } ...