100 lines
2.8 KiB
C#
100 lines
2.8 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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using System.IO.Ports;
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namespace elelab
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{
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public class port
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{
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private SerialPort commPort = new SerialPort();
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public delegate void receive_data(byte[] port_data);
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public event receive_data port_event;
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//初始化端口 使用的时候必须先初始化
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//int com_count 端口号 1 - 100
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public bool init_wms_sys(int com_count)
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{
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commPort.PortName = "COM" + com_count.ToString();
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commPort.BaudRate = 9600;
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commPort.Parity = Parity.None;// Parity.Even;
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commPort.DataBits = 8;
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commPort.StopBits = StopBits.One;
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commPort.Encoding = Encoding.ASCII;
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commPort.WriteBufferSize = 0x5000;
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commPort.ReadBufferSize = 0x5000;//by dhwu 150130
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commPort.DataReceived += new SerialDataReceivedEventHandler(Sp_DataReceived);
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commPort.ReceivedBytesThreshold = 1;
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try
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{
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commPort.Open();
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}
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catch
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{
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return false;
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}
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return true;
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}
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private void Sp_DataReceived(object sender, System.IO.Ports.SerialDataReceivedEventArgs e)
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{
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byte[] readBuffer = new byte[commPort.BytesToRead];
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commPort.Read(readBuffer, 0, readBuffer.Length);
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port_event(readBuffer);
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}
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//发送数据
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//byte[] byt 字节数组 发送内容
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public bool write_all_byte(byte[] byt)
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{//
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for (int i = 0; i < byt.Length; i++)
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{
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if (write_byte(byt[i]) == false)
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{
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return false;
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}
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}
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return true;
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}
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private bool write_byte(byte byt)
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{
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byte[] byt1 = new byte[1];
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byt1[0] = byt;
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if (commPort.IsOpen)
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{
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try
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{
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commPort.Write(byt1, 0, 1);
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}
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catch
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{
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return false;
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}
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while (commPort.BytesToWrite != 0) ;
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}
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else
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{
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try
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{
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commPort.Open();
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}
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catch
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{
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return false;
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}
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if (commPort.IsOpen)
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{
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try
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{
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commPort.Write(byt1, 0, 1);
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}
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catch
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{
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return false;
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}
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while (commPort.BytesToWrite != 0) ;
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}
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}
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return true;
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}
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}
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}
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