求助wndows Qt编写串口通信程序源码资源

SerialPort CurrentPort = null

CurrentPort = new SerialPort()

CurrentPort.ReadBufferSize = 128

CurrentPort.PortName = comName //端口号

CurrentPort.BaudRate = bandRate//比特率

CurrentPort.Parity =parity//奇偶校验

CurrentPort.StopBits = stop//停止位

CurrentPort.DataBits = databit//数据位

CurrentPort.ReadTimeout = 1000//读超时，即在1000内未读到数据就引起超时异常

//绑定数据接收事件，因为发送是被动的，所以你无法主动去获取别人发送的代码，只能通过这个事件来处理

CurrentPort.DataReceived += Sp_DataReceived

CurrentPort.Open()

定义一个变量 byte[] receiveStr

//绑定的事件处锋庆理函数

private static void Sp_DataReceived(object sender, System.IO.Ports.SerialDataReceivedEventArgs e)

{

SerialPort sp = sender as SerialPort

if (sp == null)

return

byte[] readBuffer = new byte[sp.ReadBufferSize]

sp.Read(readBuffer, 0, readBuffer.Length)

//赋值悉烂

receiveStr=readBuffer//当然你可以通过转换将byte[]转换为字符串。

}

//你要求的按钮事件可睁基漏以这么写

private void button1_Click(object sender, EventArgs e)

{

if(receiveStr!=null)

{

变量 xxx=receiveStr

}

}

myCom = new Win_QextSerialPort(portName,QextSerialBase::EventDriven)把这句谨逗的做段QextSerialBase::EventDriven改为QextSerialBase::Polling试试看。