标准DLL,可以采用DllImport进行调用。例如:
代码如下 | 复制代码 |
[DllImport("KMY350X.dll")]
private static extern int OpenPort(int PortNum, int BaudRate); |
代码如下 | 复制代码 |
ConfigClass config = new ConfigClass();
comm.serialPort.PortName = config.ReadConfig("SendHealCard"); //波特率 comm.serialPort.BaudRate = 9600; //数据位 comm.serialPort.DataBits = 8; //两个停止位 comm.serialPort.StopBits = System.IO.Ports.StopBits.One; //无奇偶校验位 comm.serialPort.Parity = System.IO.Ports.Parity.None; comm.serialPort.ReadTimeout = 100; comm.serialPort.WriteTimeout = -1; |
代码如下 | 复制代码 |
编写Comm类:
public class Comm
{ public delegate void EventHandle(byte[] readBuffer); public event EventHandle DataReceived; public SerialPort serialPort; Thread thread; volatile bool _keepReading; public Comm() { serialPort = new SerialPort(); thread = null; _keepReading = false; } public bool IsOpen { get { return serialPort.IsOpen; } } private void StartReading() { if (!_keepReading) { _keepReading = true; thread = new Thread(new ThreadStart(ReadPort)); thread.Start(); } } private void StopReading() { if (_keepReading) { _keepReading = false; thread.Join(); thread = null; } } private void ReadPort() { while (_keepReading) { if (serialPort.IsOpen) { int count = serialPort.BytesToRead; if (count > 0) { byte[] readBuffer = new byte[count]; try { Application.DoEvents(); serialPort.Read(readBuffer, 0, count); if(DataReceived != null) DataReceived(readBuffer); Thread.Sleep(100); } catch (TimeoutException) { } } } } } public void Open() { Close(); serialPort.Open(); if (serialPort.IsOpen) { StartReading(); } else { MessageBox.Show("串口打开失败!"); } } public void Close() { StopReading(); serialPort.Close(); } public void WritePort(byte[] send, int offSet, int count) { if (IsOpen) { serialPort.Write(send, offSet, count); } } } |
代码如下 | 复制代码 |
Comm comm = new Comm();
ConfigClass config = new ConfigClass(); comm.serialPort.PortName = config.ReadConfig("SendHealCard"); //波特率 comm.serialPort.BaudRate = 9600; //数据位 comm.serialPort.DataBits = 8; //两个停止位 comm.serialPort.StopBits = System.IO.Ports.StopBits.One; //无奇偶校验位 comm.serialPort.Parity = System.IO.Ports.Parity.None; comm.serialPort.ReadTimeout = 100; comm.serialPort.WriteTimeout = -1; comm.Open(); if (comm.IsOpen)
{
comm.DataReceived += new Comm.EventHandle(comm_DataReceived);
}
发送指令:
///
/// 发卡到机口 /// private void SendCardToOut() { is_read_card = false; sendCardToOut = true; byte[] send = { 0x02, 0x46, 0x43, 0x34, 0x03, 0x30 }; if (comm.IsOpen) { comm.WritePort(send, 0, send.Length); } } 收到指令,并解析:
void comm_DataReceived(byte[] readBuffer1)
{ //log.Info(HexCon.ByteToString(readBuffer)); if (readBuffer1.Length == 1) { receive = HealCardClass.ByteToString(readBuffer1); string str = "06"; if (string.Equals(receive.Trim(), str, StringComparison.CurrentCultureIgnoreCase)) { try { if (is_read_card) { byte[] send = new byte[1]; send[0] = 0x05; comm.WritePort(send, 0, send.Length); Thread.Sleep(500); comm.DataReceived -= new Comm.EventHandle(comm_DataReceived); InitReadComm(); } if (sendCardToOut) { byte[] send = new byte[1]; send[0] = 0x05; comm.WritePort(send, 0, send.Length); readComm.DataReceived -= new Comm.EventHandle(readComm_DataReceived); readComm.Close(); log.Info("发卡完成!"); lblMsg.Text = "发卡成功!"; lblSendCardMsg.Text = "发卡完成,请收好卡!"; timer1.Tick -= new EventHandler(timer1_Tick); PlaySound(); this.btnOK.Enabled = true; } } catch (Exception ex) { log.Info(ex.ToString()); } } } } |