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1、单个单片机与PC串口通信:1) 测试通信状态先在文本框中输入字符串“Hello”，单击“测试”按钮，将字符串Hello”发送到单片 机，若PC与单片机通信正常，在PC程序的文本框中显示字符串“OK!”，否则显示字符串 “ERROR!”。2) 循环计数单击“开始”按钮，文本框中数字从0开始累加，0、1、2、3，并将此数发送到单片 机的显示器上显示；当累加到10时，回到0重新开始累加，依次循环；任何时候，单击“停 止”按钮， PC 程序中和单片机显示器都停止累加，再单击“开始”按钮，接着停下的数继 续累加。3) 控制指示灯在单片机继电器接线端子的2个通道上分别接上2个指示灯，在PC程序画面上选择指
2、 示灯号，如 1 号灯，单击画面“打开”按钮，单片机上1 号灯亮，同时蜂鸣器响；单击画面 “关闭”按钮， 1 号灯灭，蜂鸣器停止响；同样控制2号灯的亮灭(蜂鸣器同时动作)。#include #include#define uchar unsigned char#define uint unsigned intsbit a1=P0A0;sbit a2=P0A1；sbit a3=P0A2;sbit a4=P0A3;sbit a5=P0A4;sbit a6=P0A5;sbit a7=P0A6;sbit a8=P0A7;void delay(uint x)/延时uchar i;while(x-)for
3、(i=0;i120;i+);void uart(void) interrupt 4 /把接收到的数据写入 ucReceiveData()TI=0;RI=0;if(SBUF=h)接收到H字符发送OK SBUF=o; while(TI=0)TI=0;else if(SBUF=1) a1=0;else if(SBUF=2) a1=1;else if(SBUF=3) a2=0;else if(SBUF=4) a2=1;else if(SBUF=5) a3=0;else if(SBUF=6) a3=1;else if(SBUF=7) a4=0;else if(SBUF=8) a4=1;else if(S
4、BUF=9) a5=0;else if(SBUF=a) a5=1;else if(SBUF=b) a6=0;else if(SBUF=c) a6=1;else if(SBUF=d) a7=0;else if(SBUF=e) a7=1;else if(SBUF=f) a8=0;else if(SBUF=g) a8=1;void main(void)uchar b=0xfe;TMOD=0x20;IE=0x12;PCON=0x80;SCON=0x50;TL1=0xFa;/0xF4;TH1=0xFa;/0xF4;0xfa 19200 0xfdTR1=1;ES=1;EA=1;/ P0=0;while(1
5、)/定时器 1-方式 2中断控制设置,串口、T2开中断 /电源控制/方式 1/12MHZ 晶振，波特率为4800 0xf3 48009600/11.0592MHZ 晶振，波特率为 4800 0xf4/启动定时P1=0;using System;using System.Collections.Generic;using System.ComponentModel;using System.Data;using System.Drawing;using System.Text;using System.Windows.Forms;using System.Drawing.Drawing2D;na
6、mespace lsd1public partial class Form1 :Form int a = 0,b=2,c=0,d=0;int m;int sur = 0;int su = 0, sf = 0;public Form1()InitializeComponent(); private void Form1_Load(object sender, EventArgs e) this.skinEngine1.SkinFile = WaveColor1.ssk; GraphicsPath gp = new GraphicsPath(); gp.AddEllipse(pictureBox1
7、.ClientRectangle); Region region = new Region(gp);pictureBox1.Region = region; pictureBox2.Region = region; pictureBox3.Region = region; pictureBox4.Region = region; pictureBox5.Region = region; pictureBox6.Region = region; pictureBox7.Region = region; pictureBox8.Region = region; gp.Dispose(); regi
8、on.Dispose(); label5.ForeColor = Color.Red; timer1.Enabled = false;timer2.Enabled = false;private void button8_Click(object sender, EventArgs e) if (textBox1.Text != )if (serialPort1.IsOpen)pictureBox1.BackColor = Color.DarkSeaGreen; serialPort1.Write(2);pictureBox2.BackColor = Color.RosyBrown; seri
9、alPort1.Write(4);pictureBox3.BackColor = Color.DarkSeaGreen; serialPort1.Write(6);pictureBox4.BackColor = Color.RosyBrown; serialPort1.Write(8);pictureBox5.BackColor = Color.DarkSeaGreen; serialPort1.Write(a);pictureBox6.BackColor = Color.RosyBrown; serialPort1.Write(c);pictureBox7.BackColor = Color
10、.DarkSeaGreen; serialPort1.Write(e);pictureBox8.BackColor = Color.RosyBrown; serialPort1.Write(g);sur = 20;serialPort1.Close();button8.Text = 打开串口 ; textBox1.Enabled = true;elsesur = 0;serialPort1.PortName = comboBox1.Text; serialPort1.BaudRate =Convert.ToInt32(comboBox2.Text);tryserialPort1.Open();
11、button8.Text = 关闭串口 ; textBox1.Enabled = false; comboBox2.Enabled = false; comboBox1.Enabled = false; timer1.Interval = Convert.ToInt32(textBox1.Text);timer1.Enabled = true;timer2.Enabled = true;catchMessageBox.Show(“串口打开失败了！ nn可能是串口已补占用。);elseMessageBox.Show(“请输入延时时间);private void button1_Click(obj
12、ect sender, EventArgs e)sur = 1; sf = 0;su = 0; b = 2;= Color.DarkSeaGreen;= Color.RosyBrown;= Color.DarkSeaGreen;pictureBox1.BackColorserialPort1.Write(2);pictureBox2.BackColorserialPort1.Write(4);pictureBox3.BackColorserialPort1.Write(6);pictureBox4.BackColor= Color.RosyBrown;= Color.DarkSeaGreen;
13、= Color.RosyBrown;= Color.DarkSeaGreen;= Color.RosyBrown;private void button2_Click(object sender,EventArgs e)= Color.DarkSeaGreen;= Color.RosyBrown;= Color.DarkSeaGreen;= Color.RosyBrown;= Color.DarkSeaGreen;= Color.RosyBrown;= Color.DarkSeaGreen;= Color.RosyBrown;serialPort1.Write(8);pictureBox5.B
14、ackColorserialPort1.Write(a);pictureBox6.BackColorserialPort1.Write(c);pictureBox7.BackColorserialPort1.Write(e);pictureBox8.BackColorserialPort1.Write(g);b = 2; sur = 2;sf = 0;su = 0;pictureBox1.BackColorserialPort1.Write(2);pictureBox2.BackColorserialPort1.Write(4);pictureBox3.BackColorserialPort1.Write(6);pictureBox4.BackColorserialPort1.Write(8);pictureBox5.BackColorserialPort1.Write(a);pictureBox6.BackColorserialPort1.Write(c);pictureBox7.BackColorserialPort1.Write(e);pictureBox8.BackColor serialPort1.Write
