【CC2530入門教程-增強版】基礎技能綜合實訓案例（基礎版）-上位機源碼

【CC2530入門教程-增強版】基礎技能綜合實訓案例（基礎版）-上位機源碼

廣東職業技術學院  歐浩源

一、需求分析

        按照指定參數打開串口，與測控終端建立數據傳輸通道，並根據應用要求實現程序邏輯，具體需求詳見《【CC2530入門教程-增強版】基礎技能綜合實訓案例（基礎版）-題目需求》。

二、界面設計

三、程序源碼分析

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using System.Threading;
using System.IO.Ports;

namespace 基礎技能綜合實訓_基礎版_
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }
        SerialPort com = new SerialPort();          //實例化一個串口對象 
        byte[] SendData = new byte[8];              //定義一個8字節的發送數據緩存
        byte[] readBuffer = new byte[8];            //實例化接收串口數據的數組
        private void Form1_Load(object sender, EventArgs e)
        {
            string[] ports = { "COM1", "COM2", "COM3", "COM4", "COM5" };
            foreach (string str in ports)
            {
                comboBox1.Items.Add(str);
            }
            comboBox1.SelectedIndex = 2;
            string[] baudrate = { "2400", "4800", "9600", "19200", "57600", "115200" };
            foreach (string str in baudrate)
            {
                comboBox2.Items.Add(str);
            }
            comboBox2.SelectedIndex = 2;
            comboBox3.Items.Add("6");
            comboBox3.Items.Add("7");
            comboBox3.Items.Add("8");
            comboBox3.SelectedIndex = 2;
            comboBox4.Items.Add("1");
            comboBox4.Items.Add("1.5");
            comboBox4.Items.Add("2");
            comboBox4.SelectedIndex = 0;
            comboBox5.Items.Add("None");
            comboBox5.SelectedIndex = 0;

            button2.Enabled = false;
            button3.Enabled = false;
            button4.Enabled = false;
            textBox1.ReadOnly = true;
            label14.Text = "終端未連接";
            label14.ForeColor = Color.Red;
            label9.Text = "0.00" + " V";
            label9.ForeColor = Color.Blue;
            label12.Text = "";
            label13.Text = "";
            label7.Text = "串口未連接！";
            label7.ForeColor = Color.Red;

            com.ReceivedBytesThreshold = 8;   //設置串口接收到8個字節數據才觸發DataReceived事件
            //為串口DataReceived事件添加處理方法
            com.DataReceived += new SerialDataReceivedEventHandler(DataReceivedHandler);
        }

        //串口數據接收DataReceived事件觸發處理方法
        private void DataReceivedHandler(object sender, SerialDataReceivedEventArgs e)
        {

            string strRcv = "";
            int count = com.BytesToRead;                    //獲取串口緩沖器的字節數
            if (count != 8)
            {
                return;
            }
            com.Read(readBuffer, 0, 8);                     //從串口緩沖區讀出數據到數組
            com.DiscardInBuffer();

            for (int i = 0; i < readBuffer.Length; i++)
            {
                strRcv += readBuffer[i].ToString("X2") + " ";   //16進制顯示  
            }
            this.BeginInvoke(new Action(() =>
            {
                textBox1.Text = strRcv;
            }));

            if (readBuffer[0] == 0xAF && readBuffer[7] == 0xFA) //判斷數據的幀頭和幀尾
            {
                this.BeginInvoke(new Action(() =>
                {
                    switch (readBuffer[2])
                    {
                        case 0x10:
                            label14.Text = string.Format("{0}號終端在線", readBuffer[1]);
                            label14.ForeColor = Color.Green;
                            button4.Enabled = false;
                            button2.Enabled = true;
                            button3.Text = "打開照明燈";
                            button2.Text = "開始采集數據";
                            label12.Text = "關閉";
                            label12.ForeColor = Color.Red;
                            label13.Text = "關閉";
                            label13.ForeColor = Color.Red;
                            break;
                        case 0x11:
                            Int32 ad = readBuffer[3];
                            double advalue;
                            ad <<= 8;
                            ad |= readBuffer[4];                            //從數據幀中將電壓數據取出
                            advalue = ad;
                            advalue = (advalue * 3.3) / 32768;              //將數據換算為實際的電壓值
                            label9.Text = advalue.ToString("F2") + " V";
                            if ((readBuffer[5] & 0x01) == 0x01)
                            {
                                label12.Text = "打開";
                                label12.ForeColor = Color.Blue;
                                button3.Text = "關閉照明燈";
                            }
                            else
                            {
                                label12.Text = "關閉";
                                label12.ForeColor = Color.Red;
                                button3.Text = "打開照明燈";
                            }
                            if ((readBuffer[5] & 0x02) == 0x02)
                            {
                                label13.Text = "打開";
                                label13.ForeColor = Color.Blue;
                            }
                            else
                            {
                                label13.Text = "關閉";
                                label13.ForeColor = Color.Red;
                            }
                            break;
                        case 0x1f:
                            label14.Text = "現場報警!!!";
                            label14.ForeColor = Color.Red;
                            button4.Enabled = true;
                            button2.Enabled = false;
                            button3.Enabled = false;
                            break;
                      }
                   // com.DiscardInBuffer();
                }));   
            }
        }
          
        private void button1_Click(object sender, EventArgs e)
        {
            if (button1.Text == "打開串口")
            {
                com.PortName = comboBox1.Text;                      //選擇串口號
                com.BaudRate = int.Parse(comboBox2.Text);           //選擇波特率
                com.DataBits = int.Parse(comboBox3.Text);           //選擇數據位數
                com.StopBits = (StopBits)int.Parse(comboBox4.Text); //選擇停止位數
                com.Parity = Parity.None;                           //選擇是否奇偶校驗
                try
                {
                    if (com.IsOpen)                                 //判斷該串口是否已打開
                    {
                        com.Close();
                        com.Open();
                    }
                    else
                    {
                        com.Open();
                    }
                    label7.Text = "串口已成功連接！";
                    label7.ForeColor = Color.Blue;
                }
                catch (Exception ex)
                {
                    MessageBox.ReferenceEquals("錯誤：" + ex.Message, "串口通信");
                }
                button1.Text = "關閉串口";
            }
            else if (button1.Text == "關閉串口")
            {
                com.Close();                        //關閉串口
                label7.Text = "串口未連接！";
                label14.Text = "終端未連接";
                label14.ForeColor = Color.Red;
                label7.ForeColor = Color.Red;
                button1.Text = "打開串口";
                button2.Enabled = false;
                button3.Enabled = false;
                button4.Enabled = false;
                textBox1.Clear();
            }
        }

        private void SendUartData()
        {
            SendData[0] = 0xAF;
            SendData[3] = 0x00;
            SendData[4] = 0x00;
            SendData[5] = 0x00;
            SendData[6] = 0x00;
            SendData[7] = 0xFA;
            for (int i = 1; i < 7; i++)
            {
                SendData[6] += SendData[i];
            }
            com.Write(SendData, 0, 8);
        }

        private void button2_Click(object sender, EventArgs e)
        {
            if (button2.Text == "開始采集數據")
            {
                button2.Text = "停止采集數據";
                button3.Enabled = true;
                SendData[1] = 0x01;
                SendData[2] = 0x01;
                SendUartData();
            }
            else 
            {
                button2.Text = "開始采集數據";
                button3.Enabled = false;
                SendData[1] = 0x01;
                SendData[2] = 0x02;
                SendUartData();
            }
        }

        private void button3_Click(object sender, EventArgs e)
        {
            if (button3.Text == "打開照明燈")
            {
                button3.Text = "關閉照明燈";
                SendData[1] = 0x01;
                SendData[2] = 0x03;
                SendUartData();
            }
            else
            {
                button3.Text = "打開照明燈";
                SendData[1] = 0x01;
                SendData[2] = 0x04;
                SendUartData();
            }
        }

        private void button4_Click(object sender, EventArgs e)
        {
            SendData[1] = 0x01;
            SendData[2] = 0x0f;
            SendUartData();
        } 
    }
}