/// <summary>
/// 开启/关闭串口
/// </summary>
/// <param name="开启状态"></param>
/// <param name="串口号"></param>
/// <param name="波特率"></param>
/// <param name="数据位"></param>
/// <param name="停止位"></param>
/// <param name="校验位"></param>
/// <param name=""></param>
private bool Start(bool IsLinked, string PortName, string Rate)
{
if (IsLinked == false)//串口处于关闭状态
{
try
{
ObjPort.PortName = PortName; //出口名
ObjPort.BaudRate = Convert.ToInt32(Rate); //波特率
ObjPort.Open();
cmb_PortName.Enabled = false;
cmb_BaudRate.Enabled = false;
return(true);
}
catch (Exception ex)
{
MessageBox.Show("连接发生错误：" + ex.Message);
return(false);
}
}
else
{
ObjPort.Close();
cmb_PortName.Enabled = true;
cmb_BaudRate.Enabled = true;
return(true);
}
}
/// <summary>
/// 串口数据读取服务函数
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void ObjPort_DataReceived(object sender, SerialDataReceivedEventArgs e)
{
Control.CheckForIllegalCrossThreadCalls = false;
Byte[] readBuffer = new Byte[ObjPort.BytesToRead]; //创建接收字节数组
ObjPort.Read(readBuffer, 0, readBuffer.Length); //读取接收的数据
if (readBuffer.Length > 0)
{
ReceiveData = readBuffer;
ObjPort.DiscardInBuffer();
}
}
//向串口发送读取温度的指令
private void SendReadTemp()
{
Byte[] TxData = { 0x01, 0x03, 0x00, 0x28, 0x00, 0x08, 0xC4, 0x04 };
ObjPort.Write(TxData, 0, 8);
}
