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C# WPF 读写CAN数据

2024/9/30 12:14:40 来源：https://blog.csdn.net/hmxm6/article/details/139636716  浏览:  次   关键词：C# WPF 读写CAN数据

C# WPF 读写CAN数据

CAN 分析仪

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分析仪资料下载

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项目配置

复制Dll库文件

文件在上面的资料里面

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设置不安全代码

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CAN C#工具类

CAN_Tool.cs

using Microsoft.VisualBasic;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Runtime.InteropServices;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Threading;namespace CAN_TEST.tool
{/*------------兼容ZLG的数据类型---------------------------------*///1.ZLGCAN系列接口卡信息的数据类型。//public struct VCI_BOARD_INFO //{ //    public UInt16 hw_Version;//    public UInt16 fw_Version;//    public UInt16 dr_Version;//    public UInt16 in_Version;//    public UInt16 irq_Num;//    public byte   can_Num;//    [MarshalAs(UnmanagedType.ByValArray, SizeConst=20)] public byte []str_Serial_Num;//    [MarshalAs(UnmanagedType.ByValArray, SizeConst = 40)]//    public byte[] str_hw_Type;//    [MarshalAs(UnmanagedType.ByValArray, SizeConst = 4)]//    public byte[] Reserved;//}//以下为简易定义与调用方式，在项目属性->生成->勾选使用不安全代码即可unsafe public struct VCI_BOARD_INFO//使用不安全代码{public UInt16 hw_Version;public UInt16 fw_Version;public UInt16 dr_Version;public UInt16 in_Version;public UInt16 irq_Num;public byte can_Num;public fixed byte str_Serial_Num[20];public fixed byte str_hw_Type[40];public fixed byte Reserved[8];}///2.定义CAN信息帧的数据类型。unsafe public struct VCI_CAN_OBJ  //使用不安全代码{public uint ID;public uint TimeStamp;        //时间标识public byte TimeFlag;         //是否使用时间标识public byte SendType;         //发送标志。保留，未用public byte RemoteFlag;       //是否是远程帧public byte ExternFlag;       //是否是扩展帧public byte DataLen;          //数据长度public fixed byte Data[8];    //数据public fixed byte Reserved[3];//保留位}//3.定义初始化CAN的数据类型public struct VCI_INIT_CONFIG{public UInt32 AccCode;public UInt32 AccMask;public UInt32 Reserved;public byte Filter;   //0或1接收所有帧。2标准帧滤波，3是扩展帧滤波。public byte Timing0;  //波特率参数，具体配置，请查看二次开发库函数说明书。public byte Timing1;public byte Mode;     //模式，0表示正常模式，1表示只听模式,2自测模式}/*------------其他数据结构描述---------------------------------*///4.USB-CAN总线适配器板卡信息的数据类型1，该类型为VCI_FindUsbDevice函数的返回参数。public struct VCI_BOARD_INFO1{public UInt16 hw_Version;public UInt16 fw_Version;public UInt16 dr_Version;public UInt16 in_Version;public UInt16 irq_Num;public byte can_Num;public byte Reserved;[MarshalAs(UnmanagedType.ByValArray, SizeConst = 8)] public byte[] str_Serial_Num;[MarshalAs(UnmanagedType.ByValArray, SizeConst = 16)]public byte[] str_hw_Type;[MarshalAs(UnmanagedType.ByValArray, SizeConst = 16)]public byte[] str_Usb_Serial;}/*------------数据结构描述完成---------------------------------*/public struct CHGDESIPANDPORT{[MarshalAs(UnmanagedType.ByValArray, SizeConst = 10)]public byte[] szpwd;[MarshalAs(UnmanagedType.ByValArray, SizeConst = 20)]public byte[] szdesip;public Int32 desport;public void Init(){szpwd = new byte[10];szdesip = new byte[20];}}public class CAN_Tool{const int DEV_USBCAN = 3;const int DEV_USBCAN2 = 4;/// <summary>/// /// </summary>/// <param name="DeviceType"></param>/// <param name="DeviceInd"></param>/// <param name="Reserved"></param>/// <returns></returns>/*------------兼容ZLG的函数描述---------------------------------*//*------------兼容ZLG的函数描述---------------------------------*/[DllImport("controlcan.dll")]public static extern UInt32 VCI_OpenDevice(UInt32 DeviceType, UInt32 DeviceInd, UInt32 Reserved);[DllImport("controlcan.dll")]public static extern UInt32 VCI_CloseDevice(UInt32 DeviceType, UInt32 DeviceInd);[DllImport("controlcan.dll")]public static extern UInt32 VCI_InitCAN(UInt32 DeviceType, UInt32 DeviceInd, UInt32 CANInd, ref VCI_INIT_CONFIG pInitConfig);[DllImport("controlcan.dll")]public static extern UInt32 VCI_ReadBoardInfo(UInt32 DeviceType, UInt32 DeviceInd, ref VCI_BOARD_INFO pInfo);[DllImport("controlcan.dll")]public static extern UInt32 VCI_GetReceiveNum(UInt32 DeviceType, UInt32 DeviceInd, UInt32 CANInd);[DllImport("controlcan.dll")]public static extern UInt32 VCI_ClearBuffer(UInt32 DeviceType, UInt32 DeviceInd, UInt32 CANInd);[DllImport("controlcan.dll")]public static extern UInt32 VCI_StartCAN(UInt32 DeviceType, UInt32 DeviceInd, UInt32 CANInd);[DllImport("controlcan.dll")]public static extern UInt32 VCI_ResetCAN(UInt32 DeviceType, UInt32 DeviceInd, UInt32 CANInd);[DllImport("controlcan.dll")]public static extern UInt32 VCI_Transmit(UInt32 DeviceType, UInt32 DeviceInd, UInt32 CANInd, ref VCI_CAN_OBJ pSend, UInt32 Len);[DllImport("controlcan.dll")]public static extern UInt32 VCI_Receive(UInt32 DeviceType, UInt32 DeviceInd, UInt32 CANInd, ref VCI_CAN_OBJ pReceive, UInt32 Len, Int32 WaitTime);/*------------其他函数描述---------------------------------*/[DllImport("controlcan.dll")]public static extern UInt32 VCI_ConnectDevice(UInt32 DevType, UInt32 DevIndex);[DllImport("controlcan.dll")]public static extern UInt32 VCI_UsbDeviceReset(UInt32 DevType, UInt32 DevIndex, UInt32 Reserved);[DllImport("controlcan.dll")]public static extern UInt32 VCI_FindUsbDevice2(ref VCI_BOARD_INFO pInfo);/*------------函数描述结束---------------------------------*/static UInt32 m_bOpen = 0;static UInt32 m_devind = 0;static UInt32 m_canind = 0;static UInt32[] m_arrdevtype = new UInt32[20];static VCI_CAN_OBJ[] m_recobj = new VCI_CAN_OBJ[1000];static UInt32 m_devtype = 4;//USBCAN2//this.timer_rec = new System.Windows.Forms.Timer(this.components);public static void init(){m_arrdevtype[2] = 3;m_arrdevtype[3] = 4;}public static void close_CAN(){CAN_Tool.VCI_CloseDevice(m_devtype, m_devind);m_bOpen = 0;}public static void start_CAN(){if (m_bOpen == 0)return;CAN_Tool.VCI_StartCAN(m_devtype, m_devind, m_canind);}unsafe public static string can_send(string can_data_idText,string can_send_data){if (m_bOpen == 0){MessageBox.Show("CAN断开连接", "错误");return null;}VCI_CAN_OBJ sendobj = new VCI_CAN_OBJ();//sendobj.Init();sendobj.RemoteFlag = (byte)0;sendobj.ExternFlag = (byte)0;sendobj.ID = System.Convert.ToUInt32("0x" + can_data_idText, 16);int len = (can_send_data.Length + 1) / 3;sendobj.DataLen = System.Convert.ToByte(len);String strdata = can_send_data;//MessageBox.Show(strdata);int i = -1;if (i++ < len - 1)sendobj.Data[0] = System.Convert.ToByte("0x" + strdata.Substring(i * 3, 2), 16);if (i++ < len - 1)sendobj.Data[1] = System.Convert.ToByte("0x" + strdata.Substring(i * 3, 2), 16);if (i++ < len - 1)sendobj.Data[2] = System.Convert.ToByte("0x" + strdata.Substring(i * 3, 2), 16);if (i++ < len - 1)sendobj.Data[3] = System.Convert.ToByte("0x" + strdata.Substring(i * 3, 2), 16);if (i++ < len - 1)sendobj.Data[4] = System.Convert.ToByte("0x" + strdata.Substring(i * 3, 2), 16);if (i++ < len - 1)sendobj.Data[5] = System.Convert.ToByte("0x" + strdata.Substring(i * 3, 2), 16);if (i++ < len - 1)sendobj.Data[6] = System.Convert.ToByte("0x" + strdata.Substring(i * 3, 2), 16);if (i++ < len - 1)sendobj.Data[7] = System.Convert.ToByte("0x" + strdata.Substring(i * 3, 2), 16);if (CAN_Tool.VCI_Transmit(m_devtype, m_devind, m_canind, ref sendobj, 1) == 0){MessageBox.Show("发送失败", "错误");return null;}else{return "TX   帧ID:" + can_data_idText + " 数据:  " + can_send_data;}}public static string connect_CAN(int CAN_Type, int CAN_id,int RUN_mod){//以下两行为多卡同机测试代码，用来获取序列号与对应的设备索引号，单卡可以不使用。VCI_BOARD_INFO[] vbi2 = new VCI_BOARD_INFO[50];uint num1 = CAN_Tool.VCI_FindUsbDevice2(ref vbi2[0]);m_devtype = m_arrdevtype[CAN_Type + 2];m_devind = 0;m_canind = (UInt32)CAN_id;if (CAN_Tool.VCI_OpenDevice(m_devtype, m_devind, 0) == 0){MessageBox.Show("打开设备失败,请检查设备类型和设备索引号是否正确", "错误");m_bOpen = 0;return "";}m_bOpen = 1;VCI_INIT_CONFIG config = new VCI_INIT_CONFIG();config.AccCode = System.Convert.ToUInt32("0x" + "00000000", 16);config.AccMask = System.Convert.ToUInt32("0x" + "FFFFFFFF", 16);config.Timing0 = System.Convert.ToByte("0x" + "00", 16);config.Timing1 = System.Convert.ToByte("0x" + "1C", 16);config.Filter = (Byte)(0 + 1);config.Mode = (Byte)RUN_mod;CAN_Tool.VCI_InitCAN(m_devtype, m_devind, m_canind, ref config);return m_bOpen == 0 ? "断开" : "连接";}unsafe public static string TimerRecTick(){UInt32 res = new UInt32();res = CAN_Tool.VCI_Receive(m_devtype, m_devind, m_canind, ref m_recobj[0], 1000, 100);///IntPtr[] ptArray = new IntPtr[1];//ptArray[0] = Marshal.AllocHGlobal(Marshal.SizeOf(typeof(VCI_CAN_OBJ)) * 50);//IntPtr pt = Marshal.AllocHGlobal(Marshal.SizeOf(typeof(IntPtr)) * 1);//Marshal.Copy(ptArray, 0, pt, 1);//MessageBox.Show(res+"");//res = VCI_Receive(m_devtype, m_devind, m_canind, pt, 50/*50*/, 100);if (res == 0xFFFFFFFF) res = 0;//当设备未初始化时，返回0xFFFFFFFF，不进行列表显示。String str = "";for (UInt32 i = 0; i < res; i++){//VCI_CAN_OBJ obj = (VCI_CAN_OBJ)Marshal.PtrToStructure((IntPtr)((UInt32)pt + i * Marshal.SizeOf(typeof(VCI_CAN_OBJ))), typeof(VCI_CAN_OBJ));str = "RX: ";str += "  帧ID:0x" + System.Convert.ToString(m_recobj[i].ID, 16);str += "  帧格式:";if (m_recobj[i].RemoteFlag == 0)str += "数据帧 ";elsestr += "远程帧 ";if (m_recobj[i].ExternFlag == 0)str += "标准帧 ";elsestr += "扩展帧 ";//if (m_recobj[i].RemoteFlag == 0){str += "数据: ";byte len = (byte)(m_recobj[i].DataLen % 9);byte j = 0;fixed (VCI_CAN_OBJ* m_recobj1 = &m_recobj[i]){if (j++ < len)str += " " + System.Convert.ToString(m_recobj1->Data[0], 16);if (j++ < len)str += " " + System.Convert.ToString(m_recobj1->Data[1], 16);if (j++ < len)str += " " + System.Convert.ToString(m_recobj1->Data[2], 16);if (j++ < len)str += " " + System.Convert.ToString(m_recobj1->Data[3], 16);if (j++ < len)str += " " + System.Convert.ToString(m_recobj1->Data[4], 16);if (j++ < len)str += " " + System.Convert.ToString(m_recobj1->Data[5], 16);if (j++ < len)str += " " + System.Convert.ToString(m_recobj1->Data[6], 16);if (j++ < len)str += " " + System.Convert.ToString(m_recobj1->Data[7], 16);}}return str + "\n";}return null;}}
}

主界面

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MainWindow.xaml

<Window x:Class="CAN_TEST.MainWindow"xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"xmlns:d="http://schemas.microsoft.com/expression/blend/2008"xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"mc:Ignorable="d"Title="CAN测试" Height="600" Width="400"><Grid><StackPanel><StackPanel Orientation="Horizontal" Height="30" Margin="0,20,0,0"><Button Margin="10,0,0,0" Click="connect_CAN" Width="100">连接分析仪</Button><Button Margin="20,0,0,0" Click="close_CAN"  Width="100">断开分析仪</Button><Button Margin="20,0,0,0" Click="start_CAN"  Width="100">启动CAN</Button></StackPanel><StackPanel Orientation="Horizontal" Height="30" Margin="0,20,0,0"><StackPanel Orientation="Horizontal" Margin="20,0,0,0"><TextBlock>CAN类型</TextBlock><ComboBox HorizontalAlignment="Center" Width="100" Margin="20,0,0,0" x:Name="CAN_Type"><ComboBoxItem>USBCAN V1</ComboBoxItem><ComboBoxItem>USBCAN V2</ComboBoxItem></ComboBox></StackPanel><StackPanel Orientation="Horizontal" Margin="20,0,0,0"><TextBlock>CAN通道</TextBlock><ComboBox HorizontalAlignment="Center" Width="100" Margin="20,0,0,0"  x:Name="CAN_id"><ComboBoxItem>CAN1</ComboBoxItem><ComboBoxItem>CAN2</ComboBoxItem></ComboBox></StackPanel></StackPanel><StackPanel Orientation="Horizontal" Height="30" Margin="0,20,0,0"><StackPanel Orientation="Horizontal" Margin="20,0,0,0"><TextBlock>CAN运行模式</TextBlock><ComboBox HorizontalAlignment="Center" Width="100" Margin="20,0,0,0"  x:Name="RUN_mod"><ComboBoxItem>正常</ComboBoxItem><ComboBoxItem>只听</ComboBoxItem><ComboBoxItem>自测</ComboBoxItem></ComboBox></StackPanel><TextBlock Margin="20,0,0,0">连接状态：</TextBlock><TextBlock Text="断开" x:Name="CAN_statusText"></TextBlock></StackPanel><StackPanel Orientation="Horizontal"><StackPanel Orientation="Vertical"  Width="300"  Margin="0,10,0,0"><TextBlock TextAlignment="Center">数据发送</TextBlock><StackPanel Orientation="Horizontal" Margin="0,10,0,0"><TextBlock  TextAlignment="Center" Margin="20,0,0,0">帧ID:</TextBlock><TextBox Width="200" Margin="33,0,0,0"  x:Name="can_data_id" Text="00000123"></TextBox></StackPanel><StackPanel Orientation="Horizontal" Margin="0,10,0,0"><TextBlock  TextAlignment="Center" Margin="20,0,0,0">发送数据:</TextBlock><TextBox Width="200" Margin="10,0,0,0"  x:Name="can_send_data" Text="00 01 02 03 04 05 06 07 "></TextBox></StackPanel><Button Width="50"  Margin="0,10,0,0" Click="can_send">发送</Button></StackPanel></StackPanel><StackPanel Orientation="Horizontal"><TextBlock TextAlignment="Center">数据接收</TextBlock></StackPanel><StackPanel Orientation="Horizontal"><TextBox Width="350" Height="200" Margin="10,0,0,0" VerticalScrollBarVisibility="Visible" MaxLines="5" x:Name="resData" TextWrapping="Wrap"></TextBox></StackPanel></StackPanel></Grid>
</Window>

MainWindow.xaml.cs

using CAN_TEST.tool;
using System.Collections.ObjectModel;
using System.ComponentModel;
using System.Configuration;
using System.Runtime.InteropServices;
using System.Text;
using System.Timers;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;
using System.Windows.Threading;
using static CAN_TEST.MainWindow;namespace HZFM_TEST
{/// <summary>/// Interaction logic for MainWindow.xaml/// </summary>public partial class MainWindow : Window{DispatcherTimer m_timer = new DispatcherTimer();public MainWindow(){InitializeComponent();// 初始化CANCAN_Tool.init();// 启动定时器m_timer.Interval = TimeSpan.FromSeconds(0.2);m_timer.Tick += new System.EventHandler(timer_rec_Tick);}private void close_CAN(object sender, RoutedEventArgs e){// 关闭CANCAN_Tool.close_CAN();}private void start_CAN(object sender, RoutedEventArgs e){// 启动CANCAN_Tool.start_CAN();}private void connect_CAN(object sender, RoutedEventArgs e){	// 连接CAN分析仪string outData = CAN_Tool.connect_CAN(CAN_Type.SelectedIndex,  CAN_id.SelectedIndex, RUN_mod.SelectedIndex);if(outData.Length > 0){m_timer.Start();}CAN_statusText.Text = outData;}// 定时收数据任务unsafe private void timer_rec_Tick(object sender, EventArgs e){string res = CAN_Tool.TimerRecTick();if(res != null){resData.AppendText(res + "\r\n");}}// 发送惨数据unsafe private void can_send(object sender, RoutedEventArgs e){string res = CAN_Tool.can_send(can_data_id.Text, can_send_data.Text);if (res != null){resData.AppendText(res + "\r\n");}}// 读取数据private void read_Data(object sender, RoutedEventArgs e){Button btn = sender as Button;int id = int.Parse(btn.CommandParameter.ToString()) + 1;string res = CAN_Tool.can_send("01800300", can_send_data.Text);if (res != null){resData.AppendText(res + "\r\n");}}}
}

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