基本信息
源码名称：C#实现串口通讯助手
源码大小：0.16M
文件格式：.rar
开发语言：C#
更新时间：2019-12-17
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源码介绍
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.IO.Ports;
using System.Threading;
namespace P1
{
public partial class Form1 : Form
{
//SerialPort sp1 = null;
bool isOpen = false;
//bool isSetProperty = false;
private static volatile bool DelayOver = false; //调度器锁 true:加锁 false:解锁
public Form1()
{
InitializeComponent();
//列出常用的波特率
cbxBaudRate.Items.Add("300");
cbxBaudRate.Items.Add("600");
cbxBaudRate.Items.Add("1200");
cbxBaudRate.Items.Add("2400");
cbxBaudRate.Items.Add("4800");
cbxBaudRate.Items.Add("9600");
cbxBaudRate.Items.Add("19200");
cbxBaudRate.Items.Add("38400");
cbxBaudRate.Items.Add("43000");
cbxBaudRate.Items.Add("56000");
cbxBaudRate.Items.Add("57600");
cbxBaudRate.Items.Add("115200");
cbxBaudRate.SelectedIndex = 5;
//列出停止位
cbxStopBits.Items.Add("0");
cbxStopBits.Items.Add("1");
cbxStopBits.Items.Add("1.5");
cbxStopBits.Items.Add("2");
cbxStopBits.SelectedIndex = 1;
//列出数据位
cbxDataBits.Items.Add("8");
cbxDataBits.Items.Add("7");
cbxDataBits.Items.Add("6");
cbxDataBits.Items.Add("5");
cbxDataBits.SelectedIndex = 0;
//列出奇偶校验位
cbxParity.Items.Add("无");
cbxParity.Items.Add("奇校验");
cbxParity.Items.Add("偶校验");
cbxParity.SelectedIndex = 0;
}
private bool CheckPortSetting()
{//检查串口是否设置
if (cbxCOMPort.Text.Trim() == "") return false;
//if (cbxBaudRate.Text.Trim() == "") return false;
//if (cbxDataBits.Text.Trim() == "") return false;
//if (cbxParity.Text.Trim() == "") return false;
//if (cbxStopBits.Text.Trim() == "") return false;
return true;
}
private bool CheckSendData()
{
if (tbxSendData.Text.Trim() == "") return false;
return true;
}
private void TestBaudRate(UInt16 TBR)
{
byte[] t = new byte[8] { 0x00, 0x03, 0x00, 0x00, 0x00, 0x01, 0x85, 0xDB };
sp1.BaudRate = TBR;
//打开串口
try
{
//sp1.Open();
sp1.Write(t, 0, 8);
}
catch (Exception)
{
return;
}
}
private void SetPortProperty()
{
if (isOpen == false)
{
//*设置停止位
sp1.StopBits = StopBits.One;
//*设置数据位
sp1.DataBits = 8;
//*设置奇偶校验位
sp1.Parity = Parity.None;
//设置超时读写时间
sp1.ReadTimeout = 10;
sp1.WriteTimeout = 10;
////串口波特率测试
//sp1.BaudRate = 9600;
//打开串口
try
{
sp1 = new SerialPort();
sp1.PortName = cbxCOMPort.Text.Trim();//设置串口名
sp1.Open();
isOpen = true;
tbxRecvData.AppendText(">>打开串口成功\r\n");
//MessageBox.Show("打开串口成功，请重新启动设备！", "温馨提示");
tbxRecvData.ScrollToCaret();
pbxLED.Image = P1.Properties.Resources.Red_LED;
btnOpenCOM.Text = "关闭串口";
}
catch (Exception)
{
MessageBox.Show("打开串口时发生错误！", "错误提示");
pbxLED.Image = P1.Properties.Resources.OFF_LED;
btnOpenCOM.Text = "打开串口";
}
}
else
{
sp1.Close();
isOpen = false;
tbxRecvData.AppendText(">>串口关闭\r\n");
tbxRecvData.ScrollToCaret();
pbxLED.Image = P1.Properties.Resources.OFF_LED;
btnOpenCOM.Text = "打开串口";
}
}
private void button3_Click(object sender, EventArgs e)
{
byte[] t = new byte[8];
t[0] = 0xAA;
t[1] = 0xBB;
t[2] = 0x11;
t[3] = 0x22;
t[4] = 0x33;
t[5] = 0x44;
t[6] = 0x55;
t[7] = 0x66;
try
{
sp1.Write(t, 0, 8);
//(Convert.ToInt16(tbxSendData.Text));
//sp.Write("0");
}
catch (Exception)
{
lblStatus.Text = "发送数据时发生错误！";
return;
}
}
private void button2_Click(object sender, EventArgs e)
{
sp1.Close();
this.Close();
}
private void button4_Click(object sender, EventArgs e)
{
//if (isOpen)
//{
try
{//读取串口数据
tbxRecvData.Text = sp1.ReadLine();
}
catch (Exception)
{
lblStatus.Text = "读取串口时发生错误！";
return;
}
//}
//else
//{
// MessageBox.Show("串口未打开！", "错误提示");
// return;
//}
}
private void groupBox3_Enter(object sender, EventArgs e)
{
}
private void btnOpenCOM_Click(object sender, EventArgs e)
{
if (!CheckPortSetting())
{
MessageBox.Show("串口未设置！", "错误提示");
return;
}
//*设置串口的属性
SetPortProperty();
this.sp1.DataReceived = new System.IO.Ports.SerialDataReceivedEventHandler(this.sp1_DataReceived);
Control.CheckForIllegalCrossThreadCalls = false;
//Thread.Sleep(100);
TestBaudRate(9600);
Delay(500);
TestBaudRate(1200);
//Thread.Sleep(500);
//TestBaudRate(2400);
//Thread.Sleep(500);
//TestBaudRate(4800);
//Thread.Sleep(500);
//TestBaudRate(19200);
}
private void cbxCOMPort_MouseDown(object sender, MouseEventArgs e)
{
//检测哪些串口可用
cbxCOMPort.Items.Clear();
for (int i = 0; i < 20; i )
{
try
{
SerialPort sp1 = new SerialPort("COM" (i 1).ToString());
sp1.Open();
sp1.Close();
cbxCOMPort.Items.Add("COM" (i 1).ToString());
}
catch (Exception)
{
continue;
}
}
}
private void timer1_Tick(object sender, EventArgs e)
{
}
private void sp1_DataReceived(object sender, SerialDataReceivedEventArgs e)
{
try
{
timer1.Enabled = true;
}
catch
{
return;
}
}
private void timer1_Elapsed(object sender, System.Timers.ElapsedEventArgs e)
{
int i, j;
timer1.Enabled = false;
j = sp1.BytesToRead;
for (i = 0; i < j; i )
{
try
{//读取串口数据
tbxRecvData.AppendText(Convert.ToString(sp1.ReadByte(), 16) " ");//10进制转换为16进制，显示出来
tbxRecvData.ScrollToCaret();
//timer2.Enabled = true;
}
catch (Exception)
{
return;
}
}
tbxRecvData.AppendText("\r\n");
//try
//{//读取串口数据
// //tbxRecvData.Text = sp.ReadLine();
// //tbxRecvData.ScrollToCaret();
// tbxRecvData.AppendText(Convert.ToString(sp1.ReadByte(), 16) " ");//10进制转换为16进制，显示出来
// tbxRecvData.ScrollToCaret();
// timer2.Enabled = true;
//}
//catch (Exception)
//{
// return;
//}
}
private void timer2_Elapsed(object sender, System.Timers.ElapsedEventArgs e)
{
DelayOver = true;
timer2.Enabled = false;
}
private void Delay(UInt16 ms)
{
timer2.Interval = ms;
timer2.Enabled = true;
//while (!DelayOver) { }
DelayOver = false;
}
}
}