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标题: 短信收发设备开发新手不求人了解的串口类，简单的串口... [打印本页]

作者: admin 时间: 2014-3-5 19:22
标题: 短信收发设备开发新手不求人了解的串口类，简单的串口...

软件开发的朋友接到领导的命令“给公司的XX系统添加一个短信功能”，在不了解这行的情况下，

百度搜索一些资料，了解到有：

1、运营商提供通道接口进行二次开发到公司的系统上实现这个短信功能。

2、通过短信设备进行二次开发实现短信功能。

1的方法我就不介绍了你可以找通道商进行了解。2想进行短信收发设备开发的一般软件开发人员都想自己完全的开发，一免费，二日后维护自己情况，做出来了老板更赞，但是又不怎么了解呢，那么下面几天我会通过发布几个文章介绍一下实现短信功能的例子给大家分享下：

首先稍微了解下神马是短信收发设备和GSM MODEM呢

GSM Modem俗称“短信收发设备”，PC可通过串口与其通信，通过向其所连接的串口发送AT指令（at指令也不知道什么？点击去查看指令集直接去一个个测试下你就完全清楚了，也就几个个而已，不要懒了，懒你就找客服购买接口吧）控制我们的“猫”发送短信，想尽快了解这个串口通讯当时是通过一个源代码程序来得最快了请看下面：

写这样一个软件，首先要了解串口通信，.NET已经为我们封装了SerialPort类，方便串口通信。

需要熟悉此串口类，就需要实现一个简单的串口调试器。

效果图：

主要源代码：C#程序

简单串口调试器代码。

using System;
using System.Drawing;
using System.IO.Ports;
using System.Runtime.InteropServices;
using System.Text;
using System.Windows.Forms;
namespace 串口调试器
{
public partial class Form1 : Form
{
//hotkeyWinapi声明：
[DllImport("user32.dll")]
[return: MarshalAs(UnmanagedType.Bool)]
public static extern bool RegisterHotKey(IntPtr hWnd, int id, uint fsModifiers, uint vk);
[DllImport("user32.dll")]
[return: MarshalAs(UnmanagedType.Bool)]
public static extern bool UnregisterHotKey(IntPtr hWnd, int id);
SerialPort sp = new SerialPort(); //声明串口类
bool stoptb2 = false;
//发送字节计数
int fscout = 0;
//接收字节计数
int jscout = 0;
//十六进制显示标志
bool ishex = false;
//委托
delegate void HandleInterfaceUpdateDelegate(string text); //委托，此为重点
HandleInterfaceUpdateDelegate interfaceUpdateHandle = null;
public Form1()
{
InitializeComponent();
}
//重载函数
protected override void WndProc(ref Message m)
{
//
const int WM_HOTKEY = 0x0312;
if (m.Msg == WM_HOTKEY)
{
int id = m.WParam.ToInt32();
//Ctrl+Z
Byte[] byte1 = new Byte[1];
byte1[0] = 0x1A;
if (id == 100)
{
if (sp.IsOpen == true)
{
sp.Write(byte1, 0, 1);
}
}
}
base.WndProc(ref m);
}
private void Form1_Load(object sender, EventArgs e)
{
//初始化状态栏
toolStripStatusLabel1.Text = "串口调试器正在初始化 ";
//热键注册Ctrl+Alt+Z
RegisterHotKey(this.Handle, 100, 6, Convert.ToUInt32(Keys.Z));
//初始化combox1
foreach (string s in SerialPort.GetPortNames())
{
comboBox1.Items.Add(s);
}
//初始化combox2
comboBox2.Items.Add("300");
comboBox2.Items.Add("600");
comboBox2.Items.Add("1200");
comboBox2.Items.Add("2400");
comboBox2.Items.Add("4800");
comboBox2.Items.Add("9600");
comboBox2.Items.Add("19200");
comboBox2.Items.Add("38400");
comboBox2.Items.Add("76800");
comboBox2.Items.Add("115200");
comboBox2.SelectedIndex = 5;
//初始化combox3
comboBox3.Items.Add("None");
comboBox3.Items.Add("Odd");
comboBox3.Items.Add("Even");
comboBox3.SelectedIndex = 0;
//初始化combox4
comboBox4.Items.Add("8");
comboBox4.Items.Add("7");
comboBox4.Items.Add("6");
comboBox4.SelectedIndex = 0;
//初始化combox5
comboBox5.Items.Add("1");
comboBox5.Items.Add("2");
comboBox5.SelectedIndex = 0;
//textbox1初始化
textBox1.Text = "1000";
//有串口
if (comboBox1.Items.Count > 0)
{
comboBox1.SelectedIndex = 0;
//串口变量初始化
sp.PortName = comboBox1.SelectedItem.ToString();
sp.BaudRate = Convert.ToInt32(comboBox2.SelectedItem.ToString());
sp.Parity = (Parity)Enum.Parse(typeof(Parity), comboBox3.SelectedItem.ToString());
sp.DataBits = int.Parse(comboBox4.SelectedItem.ToString());
sp.StopBits = (StopBits)Enum.Parse(typeof(StopBits), comboBox5.SelectedItem.ToString());
sp.RtsEnable = true;
sp.ReceivedBytesThreshold = 1;//设置 DataReceived 事件发生前内部输入缓冲区中的字节数
sp.DataReceived += new System.IO.Ports.SerialDataReceivedEventHandler(this.sp_DataReceived); //DataReceived事件委托
}
else
{
label9.Text = "未检测到串口";
label9.ForeColor = Color.Red;
}
//委托实例化
interfaceUpdateHandle = new HandleInterfaceUpdateDelegate(UpdateTextBox); //实例化委托对象
//初始化状态栏
toolStripStatusLabel1.Text = "串口调试器初始化成功 ";
}
//委托的函数
private void UpdateTextBox(string text)
{
if (stoptb2 == false)
{
textBox3.Text += text;
}
//更新接收显示
toolStripStatusLabel3.Text = String.Format(" 接收：{0} 字节 ", jscout);
}
//DataReceived事件委托方法
private void sp_DataReceived(object sender, SerialDataReceivedEventArgs e)
{
int readlen = sp.BytesToRead;
//接收计数
jscout += readlen;
byte[] readBuffer = new byte[sp.ReadBufferSize];
sp.Read(readBuffer, 0, readBuffer.Length);
if (ishex)
{
string readbuf = null;
//十六进制格式化数据
for(int i=0;i<readlen;i++)
{
string s = String.Format("{0:X}", Convert.ToInt32(readBuffer));
if (s.Length > 1)
{
readbuf += s+" ";
}
else
{
readbuf += "0" + s + " ";
}
}
this.Invoke(interfaceUpdateHandle, readbuf);
}
else
{
this.Invoke(interfaceUpdateHandle, new string[] { Encoding.UTF8.GetString(readBuffer) });
}
}
private void button1_Click(object sender, EventArgs e)
{
if (sp.IsOpen == false)
{
try
{
sp.Open();
//清空缓冲区
sp.DiscardInBuffer();
sp.DiscardOutBuffer();
}
catch (Exception)
{
label9.Text = "串口无法连接";
return;
}
button1.Text = "断开串口";
label6.Text = "已连接";
label6.ForeColor = Color.Green;
label9.Text = sp.PortName + "," + sp.BaudRate + "," + sp.Parity + "," + sp.DataBits + "," + sp.StopBits;
//改变状态栏
toolStripStatusLabel1.Text = " " + label9.Text + " ";
}
else
{
if (checkBox2.Checked)
{
MessageBox.Show("正在发送，请先停止自动发送");
return;
}
sp.Close();
label6.Text = "已断开";
label6.ForeColor = Color.Red;
label9.Text = " 串口关闭状态";
button1.Text = "连接串口";
//改变状态栏
toolStripStatusLabel1.Text = "串口关闭状态不能操作串口";
}
}
private void button2_Click(object sender, EventArgs e)
{
if (stoptb2 == false) //停止显示标志置位
{
stoptb2 = true;
button2.Text = "继续显示";
}
else
{
stoptb2 = false; //停止显示标志复位
button2.Text = "停止显示";
}
}
private void button3_Click(object sender, EventArgs e)
{
textBox3.Text = "";
}
private void button4_Click(object sender, EventArgs e)
{
if (sp.IsOpen == true)
{
fscout += textBox2.Text.Length;
sp.Write(textBox2.Text);
toolStripStatusLabel2.Text = String.Format(" 发送：{0} 字节 ", fscout);
}
else
{
MessageBox.Show("串口未打开");
}
}
private void button5_Click(object sender, EventArgs e)
{
fscout = 0;
toolStripStatusLabel2.Text = " 发送：0 字节 ";
}
private void button6_Click(object sender, EventArgs e)
{
jscout = 0;
toolStripStatusLabel3.Text = " 接收：0 字节 ";
}
private void button7_Click(object sender, EventArgs e)
{
About abFrm = new About();
abFrm.Owner = this;
abFrm.ShowDialog();
}
//程序退出
private void button8_Click(object sender, EventArgs e)
{
UnregisterHotKey(this.Handle, 100);
sp.Close();
this.Close();
}
//combox1改变
private void comboBox1_SelectedIndexChanged(object sender, EventArgs e)
{
if (sp.IsOpen == false)
{
sp.PortName = comboBox1.SelectedItem.ToString();
}
}
//combox2改变
private void comboBox2_SelectedIndexChanged(object sender, EventArgs e)
{
sp.BaudRate = Convert.ToInt32(comboBox2.SelectedItem.ToString());
}
//combox3改变
private void comboBox3_SelectedIndexChanged(object sender, EventArgs e)
{
sp.Parity = (Parity)Enum.Parse(typeof(Parity), comboBox3.SelectedItem.ToString());
}
//combox4改变
private void comboBox4_SelectedIndexChanged(object sender, EventArgs e)
{
sp.DataBits = int.Parse(comboBox4.SelectedItem.ToString());
}
//combox5改变
private void comboBox5_SelectedIndexChanged(object sender, EventArgs e)
{
sp.StopBits = (StopBits)Enum.Parse(typeof(StopBits), comboBox5.SelectedItem.ToString());
}
private void checkBox1_CheckedChanged(object sender, EventArgs e)
{
if (checkBox1.Checked)
{
ishex = true;
}
else
{
ishex = false;
}
}
private void timer1_Tick(object sender, EventArgs e)
{
if (sp.IsOpen == true)
{
fscout += textBox2.Text.Length;
sp.Write(textBox2.Text);
toolStripStatusLabel2.Text = String.Format(" 发送：{0} 字节 ", fscout);
}
else
{
MessageBox.Show("串口未打开");
}
}
private void checkBox2_CheckedChanged(object sender, EventArgs e)
{
if (sp.IsOpen == false)
{
checkBox2.Checked = false;
}
else
{
timer1.Enabled = checkBox2.Checked;
}
}
private void textBox1_TextChanged(object sender, EventArgs e)
{
if (textBox1.Text == null||textBox1.Text=="")
{
timer1.Interval = 1000;
}
else
{
timer1.Interval = Convert.ToInt32(textBox1.Text);
}
}
private void checkBox2_Click(object sender, EventArgs e)
{
if (sp.IsOpen == false)
{
MessageBox.Show("串口未连接");
}
}
}
}

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