的串口通信源程序

1、 基于单片机串口通信的上位机和下位机首先亮出C#的源程序吧。主要界面：只是作为简单的运用，可以扩展的。源代码：using System;using System.Collections.Generic;using System.ComponentModel;using System.Data;using System.Drawing;using System.Text;using System.Windows.Forms;using System.IO.Ports;using System.Timers;namespace 单片机功能控制 public partial class Form1

2、: Form public Form1() InitializeComponent(); SerialPort sp = new SerialPort(); private void button1_Click(object sender, EventArgs e) String str1 = comboBox1.Text;/串口号 String str2 = comboBox2.Text;/波特率 String str3 = comboBox3.Text;/校验位 String str4 = comboBox5.Text;/停止位 String str5 = comboBox4.Text;/

3、数据位 Int32 int2 = Convert.ToInt32(str2);/将字符串转为整型 Int32 int5 = Convert.ToInt32(str5);/将字符串转为整型 groupBox3.Enabled = true;/LED控制界面变可选 try if (button1.Text = "打开串口") if (str1 = null) MessageBox.Show("请先选择串口！", "Error"); return; sp.Close(); sp = new SerialPort(); sp.PortName

4、 = comboBox1.Text;/串口编号 sp.BaudRate = int2;/波特率 switch (str4)/停止位 case "1": sp.StopBits = StopBits.One; break; case "1.5": sp.StopBits = StopBits.OnePointFive; break; case "2": sp.StopBits = StopBits.Two; break; default: MessageBox.Show("Error：参数不正确", "Er

5、ror"); break; switch (str3) case "NONE": sp.Parity = Parity.None; break; case "ODD": sp.Parity = Parity.Odd; break; case "EVEN": sp.Parity = Parity.Even; break; default: MessageBox.Show("Error：参数不正确", "Error"); break; sp.DataBits = int5;/数据位 sp.

6、Parity = Parity.Even;/设置串口属性 sp.Open();/打开串口 button1.Text = "关闭串口" textBox1.Text = Convert.ToString(sp.PortName) + "已开启！" else sp.Close(); button1.Text = "打开串口" groupBox3.Enabled = false;/LED控制界面变灰色 textBox1.Text = Convert.ToString(sp.PortName) + "已关闭！" catch

7、(Exception er) MessageBox.Show("Error:" + er.Message, "Error"); return; private void Form1_Load(object sender, EventArgs e) /初始化 textBox1.Text = "欢迎使用简易的串口助手！" groupBox3.Enabled = false;/LED控制界面变灰色 groupBox6.Enabled = false; groupBox7.Enabled = false; groupBox8.Enabled

8、= false; button3.Enabled = false; button6.Enabled = false; timer1.Start(); try foreach (string com in System.IO.Ports.SerialPort.GetPortNames() /自动获取串行口名称 boBox1.Items.Add(com); /默认设置 comboBox1.SelectedIndex = 0;/选择第一个com口 comboBox2.SelectedIndex = 4;/波特率4800 comboBox3.SelectedIndex = 0;/校验位NONE com

9、boBox4.SelectedIndex = 0;/停止位为1 comboBox5.SelectedIndex = 0;/数据位为8 catch MessageBox.Show("找不到通讯端口！", "串口调试助手"); private void timer1_Tick(object sender, EventArgs e) label6.Text = DateTime.Now.ToString(); private void button2_Click(object sender, EventArgs e) try if (button2.Text

10、= "开启") groupBox6.Enabled = true; radioButton1.Checked = false; radioButton2.Checked = false; radioButton3.Checked = false; radioButton4.Checked = false; checkBox1.Checked = false; checkBox2.Checked = false; checkBox3.Checked = false; checkBox4.Checked = false; checkBox5.Checked = false; c

11、heckBox6.Checked = false; checkBox7.Checked = false; checkBox8.Checked = false; button3.Enabled = true; textBox2.Text = String.Empty; button2.Text = "关闭" else groupBox6.Enabled = false; button3.Enabled = false; button2.Text = "开启" textBox2.Text = String.Empty; catch (Exception er

12、) MessageBox.Show("Error:" + er.Message, "Error"); return; private void button3_Click(object sender, EventArgs e) groupBox6.Enabled = true; label7.Text = "已发送" if (textBox2.Text = "") MessageBox.Show("发送失败，请选择发送的数据！"); else sp.WriteLine(textBox2.Text

13、);/往串口写数据 private void checkBox1_CheckedChanged(object sender, EventArgs e) try if (checkBox1.Checked) checkBox1.Checked = true; checkBox2.Checked = false; checkBox3.Checked = false; checkBox4.Checked = false; checkBox5.Checked = false; checkBox6.Checked = false; checkBox7.Checked = false; checkBox8

14、.Checked = false; label7.Text = "准备发送" textBox2.Text = "1" catch (Exception er) MessageBox.Show("Error:" + er.Message, "Error"); return; private void checkBox2_CheckedChanged(object sender, EventArgs e) try if (checkBox2.Checked) checkBox1.Checked = false; che

15、ckBox2.Checked = true; checkBox3.Checked = false; checkBox4.Checked = false; checkBox5.Checked = false; checkBox6.Checked = false; checkBox7.Checked = false; checkBox8.Checked = false; label7.Text = "准备发送" textBox2.Text = "2" radioButton1.Checked = false; radioButton2.Checked = f

16、alse; radioButton3.Checked = false; radioButton4.Checked = false; catch (Exception er) MessageBox.Show("Error:" + er.Message, "Error"); return; private void checkBox3_CheckedChanged(object sender, EventArgs e) try if (checkBox3.Checked) checkBox1.Checked = false; checkBox2.Checke

17、d = false; checkBox3.Checked = true; checkBox4.Checked = false; checkBox5.Checked = false; checkBox6.Checked = false; checkBox7.Checked = false; checkBox8.Checked = false; radioButton1.Checked = false; radioButton2.Checked = false; radioButton3.Checked = false; radioButton4.Checked = false; label7.T

18、ext = "准备发送" textBox2.Text = "3" catch (Exception er) MessageBox.Show("Error:" + er.Message, "Error"); return; private void checkBox4_CheckedChanged(object sender, EventArgs e) try if (checkBox4.Checked) checkBox1.Checked = false; checkBox2.Checked = false; ch

19、eckBox3.Checked = false; checkBox4.Checked = true; checkBox5.Checked = false; checkBox6.Checked = false; checkBox7.Checked = false; checkBox8.Checked = false; radioButton1.Checked = false; radioButton2.Checked = false; radioButton3.Checked = false; radioButton4.Checked = false; label7.Text = "准

20、备发送" textBox2.Text = "4" catch (Exception er) MessageBox.Show("Error:" + er.Message, "Error"); return; private void checkBox5_CheckedChanged(object sender, EventArgs e) try if (checkBox5.Checked) checkBox1.Checked = false; checkBox2.Checked = false; checkBox3.Check

21、ed = false; checkBox4.Checked = false; checkBox5.Checked = true; checkBox6.Checked = false; checkBox7.Checked = false; checkBox8.Checked = false; radioButton1.Checked = false; radioButton2.Checked = false; radioButton3.Checked = false; radioButton4.Checked = false; label7.Text = "准备发送" tex

22、tBox2.Text = "5" catch (Exception er) MessageBox.Show("Error:" + er.Message, "Error"); return; private void checkBox6_CheckedChanged(object sender, EventArgs e) try if (checkBox6.Checked) checkBox1.Checked = false; checkBox2.Checked = false; checkBox3.Checked = false; c

23、heckBox4.Checked = false; checkBox5.Checked = false; checkBox6.Checked = true; checkBox7.Checked = false; checkBox8.Checked = false; radioButton1.Checked = false; radioButton2.Checked = false; radioButton3.Checked = false; radioButton4.Checked = false; label7.Text = "准备发送" textBox2.Text =

24、"6" catch (Exception er) MessageBox.Show("Error:" + er.Message, "Error"); return; private void checkBox7_CheckedChanged(object sender, EventArgs e) try if (checkBox7.Checked) checkBox1.Checked = false; checkBox2.Checked = false; checkBox3.Checked = false; checkBox4.Chec

25、ked = false; checkBox5.Checked = false; checkBox6.Checked = false; checkBox7.Checked = true; checkBox8.Checked = false; radioButton1.Checked = false; radioButton2.Checked = false; radioButton3.Checked = false; radioButton4.Checked = false; label7.Text = "准备发送" textBox2.Text = "7"

26、 catch (Exception er) MessageBox.Show("Error:" + er.Message, "Error"); return; private void checkBox8_CheckedChanged(object sender, EventArgs e) try if (checkBox8.Checked) checkBox1.Checked = false; checkBox2.Checked = false; checkBox3.Checked = false; checkBox4.Checked = false;

27、checkBox5.Checked = false; checkBox6.Checked = false; checkBox7.Checked = false; checkBox8.Checked = true; radioButton1.Checked = false; radioButton2.Checked = false; radioButton3.Checked = false; radioButton4.Checked = false; label7.Text = "准备发送" textBox2.Text = "8" catch (Excep

28、tion er) MessageBox.Show("Error:" + er.Message, "Error"); return; private void button5_Click(object sender, EventArgs e) try if (button5.Text = "开启") radioButton1.Checked = false; radioButton2.Checked = false; radioButton3.Checked = false; radioButton4.Checked = false;

29、checkBox1.Checked = false; checkBox2.Checked = false; checkBox3.Checked = false; checkBox4.Checked = false; checkBox5.Checked = false; checkBox6.Checked = false; checkBox7.Checked = false; checkBox8.Checked = false; groupBox7.Enabled = true; button6.Enabled = true; textBox2.Text = String.Empty; butt

30、on5.Text = "关闭" else groupBox7.Enabled = false; button6.Enabled = false; button5.Text = "开启" textBox2.Text = String.Empty; catch (Exception er) MessageBox.Show("Error:" + er.Message, "Error"); return; private void button6_Click(object sender, EventArgs e) labe

31、l7.Text = "已发送" if (textBox2.Text = "") MessageBox.Show("发送失败。请选择发送的数据！"); else sp.WriteLine(textBox2.Text);/往串口写数据 private void radioButton1_CheckedChanged(object sender, EventArgs e) try if (radioButton1.Checked) label7.Text = "准备发送" textBox2.Text = "9&

32、quot; checkBox1.Checked = false; checkBox2.Checked = false; checkBox3.Checked = false; checkBox4.Checked = false; checkBox5.Checked = false; checkBox6.Checked = false; checkBox7.Checked = false; checkBox8.Checked = false; catch (Exception er) MessageBox.Show("Error:" + er.Message, "Er

33、ror"); return; private void radioButton2_CheckedChanged(object sender, EventArgs e) try if (radioButton2.Checked) label7.Text = "准备发送" textBox2.Text = "a" checkBox1.Checked = false; checkBox2.Checked = false; checkBox3.Checked = false; checkBox4.Checked = false; checkBox5.Ch

34、ecked = false; checkBox6.Checked = false; checkBox7.Checked = false; checkBox8.Checked = false; catch (Exception er) MessageBox.Show("Error:" + er.Message, "Error"); return; private void radioButton3_CheckedChanged(object sender, EventArgs e) try if (radioButton3.Checked) label7.