using namespace System;
using namespace System::ComponentModel;
using namespace System::Collections;
using namespace System::Windows::Forms;
using namespace System::Data;
using namespace System::Drawing;
using namespace System::IO::Ports;
using namespace System::Linq;
using namespace System::Text;
using namespace System::Threading;
namespace serial_communication
{
/// <summary>
/// Form1 摘要
/// </summary>
public ref class Form1 : public System::Windows::Forms::Form
{
SerialPort sp ;
bool isOpen ;
bool isSetProperty ;
bool isHex ;
public: delegate void Mycallback(String^ str);
public:
Form1(void)
{
InitializeComponent();
//
//TODO: 在此处添加构造函数代码
//
}
private: System::Void Form1_Load(System::Object^ sender, System::EventArgs^ e)
{
this->MaximizeBox = false;
this->MaximumSize = this->Size;
this->MinimumSize = this->Size;
for (int i = 0; i < 10; i++) //最大支持10个串口,可根据自己需求增加
{
cbxCOMPort->Items->Add("COM"+(i+1).ToString());
}
cbxCOMPort->SelectedIndex = 0;
//列出常用的波特率
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("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;
//默认为char显示
rbnChar->Checked = true;
}
private: System::Void btnCheckCom_Click(System::Object^ sender, System::EventArgs^ e)
{
bool comExistence = false; //有可用串口标志位
cbxCOMPort->Items->Clear(); //清除当前串口号中的所有串口名称
for (int i = 0; i < 10; i++)
{
try
{
sp.PortName = ("COM" + (i + 1).ToString()); //可能有问题
sp.Open();
sp.Close();
cbxCOMPort->Items->Add("COM" + (i + 1).ToString());
comExistence = true;
throw 1;
}
catch(int& value)
{
continue;
}
}
if (comExistence)
{
cbxCOMPort->SelectedIndex = 0;
}
else
{
MessageBox::Show("没有找到可用的串口!", "错误提示");
}
}
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() //检查发送数据是否输入
{
if (tbxSendData->Text->Trim() == "") return false;
return true;
}
private: void SetPortProperty() //设置串口的属性
{
// sp = gcnew SerialPort();
sp.PortName = cbxCOMPort->Text->Trim(); //设置串口名
sp.BaudRate = Int32::Parse (cbxBaudRate->Text->Trim()); //设置串口的波特率
if (cbxStopBits->Text->Trim() == "0") //设置停止位
{
sp.StopBits = StopBits::None;
}
else if (cbxStopBits->Text->Trim() == "1.5")
{
sp.StopBits = StopBits::OnePointFive;
}
else if (cbxStopBits->Text->Trim() == "2")
{
sp.StopBits = StopBits::Two;
}
else
{
sp.StopBits = StopBits::One;
}
sp.DataBits = Int32::Parse(cbxDataBits->Text->Trim()); //设置数据位
if (cbxParity->Text->Trim() == "奇校验") //设置校验
{
sp.Parity = Parity::Odd;
}
else if (cbxParity->Text->Trim() == "偶校验")
{
sp.Parity = Parity::Even;
}
else
{
sp.Parity = Parity::None;
}
sp.ReadTimeout = -1; //设置超时读取时间
sp.RtsEnable = true;
//定义DataReceived事件,当串口收到数据后触发事件
//sp.DataReceived += gcnew SerialDataReceivedEventHandler(sp,&serial_communication::Form1::sp_DataReceived);
Mycallback^ SerialDataReceivedEventHandler = gcnew Mycallback(&serial_communication::Form1::sp_DataReceived);
SerialPort^ sp = gcnew SerialPort("COM1");
SerialDataReceivedEventHandler += gcnew Mycallback( sp,&serial_communication::Form1::sp_DataReceived);
//mySerialPort.DataReceived += new SerialDataReceivedEventHandler(DataReceivedHandler);
if (rbnHex->Checked)
{
isHex = true;
}
else
{
isHex = false;
}
}
private: void btnOpenCom_Click(Object^ sender, EventArgs^ e) //打开串口,btnopencom点击处理函数
{
if (isOpen == false)
{
if (!CheckPortSetting()) //检测串口设置
{
MessageBox::Show("串口未设置,错误提示");
return;
}
if (!isSetProperty)
{
SetPortProperty();
isSetProperty = true;
}
try
{
sp.Open();
isOpen = true;
btnOpenCom->Text = "关闭串口";
//串口打开后,相关的串口设置按钮不可再用
cbxCOMPort->Enabled = false;
cbxBaudRate->Enabled = false;
cbxDataBits->Enabled = false;
cbxStopBits->Enabled = false;
cbxParity->Enabled = false;
rbnChar->Enabled = false;
rbnHex->Enabled = false;
throw 1;
}
catch(int& value)
{
//打开串口失败后,相应标志位取消
//isSetProperty = false;
// isOpen = false;
// MessageBox::Show("串口无效或已被占用", "错误提示");
}
}
else
{
try
{
sp.Close();
isOpen = false;
isSetProperty = false;
btnOpenCom->Text = "打开串口";
//关闭串口后,串口设置选项可以继续使用
cbxCOMPort->Enabled = true;
cbxBaudRate->Enabled = true;
cbxDataBits->Enabled = true;
cbxStopBits->Enabled = true;
cbxParity->Enabled = true;
rbnChar->Enabled = true;
rbnHex->Enabled = true;
throw 1;
}
catch(int& value)
{
// MessageBox.Show("关闭串口时发生错误", "错误提示");
}
}
}
private: void btnSendData_Click(Object^ sender, EventArgs^ e) //发送数据,btnsenddata点击处理函数
{
if (isOpen)
{
try
{
sp.WriteLine(tbxSendData->Text);
throw 1;
}
catch(int& value)
{
//MessageBox::Show("发送数据时发生错误!", "错误提示");
//return;
}
}
else
{
MessageBox::Show("串口未打开", "错误提示");
return;
}
if (!CheckSendData())
{
MessageBox::Show("请输入要发送的数据!", "错误提示");
return;
}
}
private: void sp_DataReceived(Object^ sender, SerialDataReceivedEventArgs^ e) /////////
{
System::Threading::Thread::Sleep(100); //延时100ms等待接收完数据
//this.Invoke就是跨线程访问ui的方法,也是文本的范例
if (isHex == false)
{
tbxRecvData->Text += sp.ReadLine();
}
else
{
array<String^>^ ReceivedData = gcnew array<String^> (sp.BytesToRead);
// sp.Read(ReceivedData, 0, ReceivedData->Length);
String^ RecvDataText = nullptr;
RecvDataText = sp.ReadExisting();
for (int i = 0; i < ReceivedData->Length; i++)
{
RecvDataText += ( ReceivedData[i] + " ");
}
tbxRecvData->Text += RecvDataText;
}
sp.DiscardInBuffer();
}
private: void btnClearData_Click(Object^ sender, EventArgs^ e)
{
tbxRecvData->Text = "";
tbxSendData->Text = "";
}