USBcan盒子(编程)-编程知识网

驱动器90

can盒子449

感觉不如以太网转CAN好用 

USBcan盒子(编程)-编程知识网

1数据类型Device Type      设备类型4(USBCAN-2A,USBCAN-2C,CANalyst-II)VCI_BOARD_INFO   硬件信息VCI_CAN_OBJ      收发帧参数VCI_INIT_CONFIG   配置信息
2 函数描述VCI_OpenDevice      打开设备(设备类型4,设备索引0,保留0)return  1ok
VCI_CloseDevice     关闭设备(设备类型4,设备索引0)
VCI_InitCan         初始化设备(设备类型4,设备索引0,CAN通道索引0,参数结构)
VCI_ReadBoardInfo    获取设备信息(设备类型4,设备索引0,VCI_BOARD_INFO结构指针)
VCI_GetReceiveNum    帧数量(设备类型4,设备索引0,CAN通道索引0)return  u64 -1设备丢失
VCI_ClearBuffer      清空数据(设备类型4,设备索引0,CAN通道索引0)
VCI_StartCAN         启动CAN通道(设备类型4,设备索引0,CAN通道索引0) return 1成功
VCI_ResetCAN        复位CAN(设备类型4,设备索引0,CAN通道索引0) return 1成功
VCI_Transmit    发送(设备类型4,设备索引0,CAN通道索引0,VCI_CAN_OBJ数组的首指针,帧数1)
VCI_Receive     接收(设备类型4,设备索引0,CAN通道索引0,VCI_CAN_OBJ数组的首指针,帧数2500,0)
3 其他函数VCI_BOARD_INFO1
VCI_UsbDeviceReset     复位USB设备(设备类型4,设备索引0,保留0)return  1成功
VCI_OpenDevice       连接USB设备(设备类型4,设备索引0,保留0)return  1ok
VCI_FindUsbDevice2        查找USB设备(VCI_BOARD_INFO数组50)return  int设备数量

USBcan盒子(编程)-编程知识网

 VCI_BOARD_INFO  硬件信息

//1.ZLGCAN系列接口卡信息的数据类型。
public struct VCI_BOARD_INFO 
{ public UInt16 hw_Version;// 硬件版本号,用16进制表示。比如0x0100表示V1.00。public UInt16 fw_Version;// 固件版本号, public UInt16 dr_Version;// 驱动程序版本号,public UInt16 in_Version;// 接口库版本号,public UInt16 irq_Num;// 保留参数。public byte   can_Num;// 表示有几路CAN通道。[MarshalAs(UnmanagedType.ByValArray, SizeConst=20)]public byte []str_Serial_Num;// 此板卡的序列号。[MarshalAs(UnmanagedType.ByValArray, SizeConst = 40)]public byte[] str_hw_Type;// 硬件类型,比如“USBCAN V1.00”(注意:包括字符串结束符’\0’)[MarshalAs(UnmanagedType.ByValArray, SizeConst = 4)]public byte[] Reserved;// 系统保留。
}

用于读取硬件信息,软件绑定硬件设备。 

VCI_CAN_OBJ      收发帧参数

//2.定义CAN信息帧的数据类型。
unsafe public struct VCI_CAN_OBJ  //CAN帧结构体,
{public uint ID;// 帧ID。 32位变量,数据格式为靠右对齐。 详情请参照: 《8.附件1: ID对齐方式.pdf》说明文档。public uint TimeStamp;        //设备接收到某一帧的时间标识。 时间标示从CAN卡上电开始计时,计时单位为0.1ms。public byte TimeFlag;         //是否使用时间标识,为1时TimeStamp有效public byte SendType;         //发送帧类型。=0时为正常发送(发送失败会自动重发,重发超时时间为4秒, 4秒内没有发出则取消);=1时为单次发送public byte RemoteFlag;       //是否是远程帧。 =0时为为数据帧, =1时为远程帧(数据段空)。public byte ExternFlag;       //是否是扩展帧。 =0时为标准帧(11位ID), =1时为扩展帧(29位ID)。public byte DataLen;          //数据长度 DLC (<=8),即CAN帧Data有几个字节。约束了后面Data[8]中的有效字节。public fixed byte Data[8];    //如DataLen定义为3,即Data[0]、 Data[1]、 Data[2]是有效的。public fixed byte Reserved[3];//系统保留。}

收发信息帧 

VCI_INIT_CONFIG   配置信息 

//3.定义初始化CAN的数据类型
public struct VCI_INIT_CONFIG 
{public UInt32 AccCode;// 接收码。 SJA1000的帧过滤验收码。对经过屏蔽码过滤为“有关位”进行匹配,全部匹配成功后,此帧可以被接收。否则不接收。public UInt32 AccMask;// 屏蔽码。 SJA1000的帧过滤屏蔽码。对接收的CAN帧ID进行过滤,对应位为0的是“有// 关位”,对应位为1的是“无关位”。屏蔽码推荐设置为0xFFFFFFFF,即全部接收。public UInt32 Reserved;// 保留。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。  0x00,0x14public byte Timing1;    // 0x14public byte Mode;     //模式,0表示正常模式,1表示只听模式,2自测模式
}

这个配置很重要: AccCode=0x00000000接收码,AccMask=0xFFFFFFFF屏蔽码;Filter=0x01接收所有,速度1Mbps(T0=0x00,T1=0x14)Mode=0x00正常模式;

USBcan盒子(编程)-编程知识网 

设备反馈类型

//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;// 硬件版本号,用16进制表示。比如0x0100表示V1.00。public UInt16 fw_Version;// 固件版本号, public UInt16 dr_Version;// 驱动程序版本号,public UInt16 in_Version;// 接口库版本号,public UInt16 irq_Num;// 保留参数。public byte can_Num;// 表示有几路CAN通道。public byte Reserved;[MarshalAs(UnmanagedType.ByValArray, SizeConst=8)]public byte []str_Serial_Num;// 此板卡的序列号。[MarshalAs(UnmanagedType.ByValArray, SizeConst = 16)]public byte[] str_hw_Type;// 硬件类型,比如“USBCAN V1.00”(注意:包括字符串结束符’\0’)[MarshalAs(UnmanagedType.ByValArray, SizeConst = 16)]public byte[] str_Usb_Serial;
}

 Demo:

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.Runtime.InteropServices;/*------------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;// 硬件版本号,用16进制表示。比如0x0100表示V1.00。public UInt16 fw_Version;// 固件版本号, public UInt16 dr_Version;// 驱动程序版本号,public UInt16 in_Version;// 接口库版本号,public UInt16 irq_Num;// 保留参数。public byte   can_Num;// 表示有几路CAN通道。[MarshalAs(UnmanagedType.ByValArray, SizeConst=20)]public byte []str_Serial_Num;// 此板卡的序列号。[MarshalAs(UnmanagedType.ByValArray, SizeConst = 40)]public byte[] str_hw_Type;// 硬件类型,比如“USBCAN V1.00”(注意:包括字符串结束符’\0’)[MarshalAs(UnmanagedType.ByValArray, SizeConst = 4)]public byte[] Reserved;// 系统保留。
}/
//2.定义CAN信息帧的数据类型。
unsafe public struct VCI_CAN_OBJ  //CAN帧结构体,
{public uint ID;// 帧ID。 32位变量,数据格式为靠右对齐。 详情请参照: 《8.附件1: ID对齐方式.pdf》说明文档。public uint TimeStamp;        //设备接收到某一帧的时间标识。 时间标示从CAN卡上电开始计时,计时单位为0.1ms。public byte TimeFlag;         //是否使用时间标识,为1时TimeStamp有效public byte SendType;         //发送帧类型。=0时为正常发送(发送失败会自动重发,重发超时时间为4秒, 4秒内没有发出则取消);=1时为单次发送public byte RemoteFlag;       //是否是远程帧。 =0时为为数据帧, =1时为远程帧(数据段空)。public byte ExternFlag;       //是否是扩展帧。 =0时为标准帧(11位ID), =1时为扩展帧(29位ID)。public byte DataLen;          //数据长度 DLC (<=8),即CAN帧Data有几个字节。约束了后面Data[8]中的有效字节。public fixed byte Data[8];    //如DataLen定义为3,即Data[0]、 Data[1]、 Data[2]是有效的。public fixed byte Reserved[3];//系统保留。}//3.定义初始化CAN的数据类型
public struct VCI_INIT_CONFIG 
{public UInt32 AccCode;// 接收码。 SJA1000的帧过滤验收码。对经过屏蔽码过滤为“有关位”进行匹配,全部匹配成功后,此帧可以被接收。否则不接收。public UInt32 AccMask;// 屏蔽码。 SJA1000的帧过滤屏蔽码。对接收的CAN帧ID进行过滤,对应位为0的是“有// 关位”,对应位为1的是“无关位”。屏蔽码推荐设置为0xFFFFFFFF,即全部接收。public UInt32 Reserved;// 保留。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。  0x00,0x14public byte Timing1;    // 0x14public 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;// 硬件版本号,用16进制表示。比如0x0100表示V1.00。public UInt16 fw_Version;// 固件版本号, public UInt16 dr_Version;// 驱动程序版本号,public UInt16 in_Version;// 接口库版本号,public UInt16 irq_Num;// 保留参数。public byte can_Num;// 表示有几路CAN通道。public byte Reserved;[MarshalAs(UnmanagedType.ByValArray, SizeConst=8)]public byte []str_Serial_Num;// 此板卡的序列号。[MarshalAs(UnmanagedType.ByValArray, SizeConst = 16)]public byte[] str_hw_Type;// 硬件类型,比如“USBCAN V1.00”(注意:包括字符串结束符’\0’)[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];}
}namespace WindowsApplication1
{public partial class Form1 : Form{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---------------------------------*/[DllImport("controlcan.dll")]static extern UInt32 VCI_OpenDevice(UInt32 DeviceType, UInt32 DeviceInd, UInt32 Reserved);[DllImport("controlcan.dll")]static extern UInt32 VCI_CloseDevice(UInt32 DeviceType, UInt32 DeviceInd);[DllImport("controlcan.dll")]static extern UInt32 VCI_InitCAN(UInt32 DeviceType, UInt32 DeviceInd, UInt32 CANInd, ref VCI_INIT_CONFIG pInitConfig);[DllImport("controlcan.dll")]static extern UInt32 VCI_ReadBoardInfo(UInt32 DeviceType, UInt32 DeviceInd, ref VCI_BOARD_INFO pInfo);[DllImport("controlcan.dll")]static extern UInt32 VCI_GetReceiveNum(UInt32 DeviceType, UInt32 DeviceInd, UInt32 CANInd);[DllImport("controlcan.dll")]static extern UInt32 VCI_ClearBuffer(UInt32 DeviceType, UInt32 DeviceInd, UInt32 CANInd);[DllImport("controlcan.dll")]static extern UInt32 VCI_StartCAN(UInt32 DeviceType, UInt32 DeviceInd, UInt32 CANInd);[DllImport("controlcan.dll")]static extern UInt32 VCI_ResetCAN(UInt32 DeviceType, UInt32 DeviceInd, UInt32 CANInd);[DllImport("controlcan.dll")]static extern UInt32 VCI_Transmit(UInt32 DeviceType, UInt32 DeviceInd, UInt32 CANInd, ref VCI_CAN_OBJ pSend, UInt32 Len);[DllImport("controlcan.dll")]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")]static extern UInt32 VCI_ConnectDevice(UInt32 DevType,UInt32 DevIndex);[DllImport("controlcan.dll")]static extern UInt32 VCI_UsbDeviceReset(UInt32 DevType,UInt32 DevIndex,UInt32 Reserved);[DllImport("controlcan.dll")]static extern UInt32 VCI_FindUsbDevice(ref VCI_BOARD_INFO1 pInfo);/*------------函数描述结束---------------------------------*/static UInt32 m_devtype = 4;//USBCAN2UInt32 m_bOpen = 0;UInt32 m_devind = 0;UInt32 m_canind = 0;VCI_CAN_OBJ[] m_recobj = new VCI_CAN_OBJ[1000];UInt32[] m_arrdevtype = new UInt32[20];public Form1(){InitializeComponent();}private void Form1_Load(object sender, EventArgs e){comboBox_DevIndex.SelectedIndex = 0;comboBox_CANIndex.SelectedIndex = 0;textBox_AccCode.Text = "00000000";textBox_AccMask.Text = "FFFFFFFF";textBox_Time0.Text = "00";textBox_Time1.Text = "1C";comboBox_Filter.SelectedIndex = 0;              //接收所有类型comboBox_Mode.SelectedIndex = 2;                //还回测试模式comboBox_FrameFormat.SelectedIndex = 0;comboBox_FrameType.SelectedIndex = 0;textBox_ID.Text = "00000123";textBox_Data.Text = "00 01 02 03 04 05 06 07 ";//Int32 curindex = 0;comboBox_devtype.Items.Clear();curindex = comboBox_devtype.Items.Add("DEV_USBCAN");m_arrdevtype[curindex] =  DEV_USBCAN;//comboBox_devtype.Items[2] = "VCI_USBCAN1";//m_arrdevtype[2]=  VCI_USBCAN1 ;curindex = comboBox_devtype.Items.Add("DEV_USBCAN2");m_arrdevtype[curindex] = DEV_USBCAN2 ;//comboBox_devtype.Items[3] = "VCI_USBCAN2";//m_arrdevtype[3]=  VCI_USBCAN2 ;comboBox_devtype.SelectedIndex = 1;comboBox_devtype.MaxDropDownItems = comboBox_devtype.Items.Count;}private void Form1_FormClosed(object sender, FormClosedEventArgs e){if (m_bOpen==1){VCI_CloseDevice(m_devtype, m_devind);}}private void buttonConnect_Click(object sender, EventArgs e){//连接if (m_bOpen==1){VCI_CloseDevice(m_devtype, m_devind);m_bOpen = 0;}else{m_devtype = m_arrdevtype[comboBox_devtype.SelectedIndex];m_devind=(UInt32)comboBox_DevIndex.SelectedIndex;m_canind = (UInt32)comboBox_CANIndex.SelectedIndex;if (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",MessageBoxButtons.OK, MessageBoxIcon.Exclamation);return;}m_bOpen = 1;VCI_INIT_CONFIG config=new VCI_INIT_CONFIG();config.AccCode=System.Convert.ToUInt32("0x" + textBox_AccCode.Text,16);config.AccMask = System.Convert.ToUInt32("0x" + textBox_AccMask.Text, 16);config.Timing0 = System.Convert.ToByte("0x" + textBox_Time0.Text, 16);config.Timing1 = System.Convert.ToByte("0x" + textBox_Time1.Text, 16);config.Filter = (Byte)(comboBox_Filter.SelectedIndex+1);config.Mode = (Byte)comboBox_Mode.SelectedIndex;VCI_InitCAN(m_devtype, m_devind, m_canind, ref config);}buttonConnect.Text = m_bOpen==1?"断开":"连接";timer_rec.Enabled = m_bOpen==1?true:false;}unsafe private void timer_rec_Tick(object sender, EventArgs e){UInt32 res = new UInt32();// 接收(设备类型4,设备索引0,CAN通道索引0,VCI_CAN_OBJ数组的首指针,帧数2500,0)res = 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);//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 = "接收到数据: ";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);}}listBox_Info.Items.Add(str);listBox_Info.SelectedIndex = listBox_Info.Items.Count - 1;}//Marshal.FreeHGlobal(ptArray[0]);//Marshal.FreeHGlobal(pt);}private void button_StartCAN_Click(object sender, EventArgs e){if (m_bOpen == 0)return;VCI_StartCAN(m_devtype, m_devind, m_canind);}private void button_StopCAN_Click(object sender, EventArgs e){if (m_bOpen == 0)return;VCI_ResetCAN(m_devtype, m_devind, m_canind);}unsafe private void button_Send_Click(object sender, EventArgs e){if(m_bOpen==0)return;VCI_CAN_OBJ sendobj = new VCI_CAN_OBJ();//sendobj.Init();sendobj.RemoteFlag = (byte)comboBox_FrameFormat.SelectedIndex;sendobj.ExternFlag = (byte)comboBox_FrameType.SelectedIndex;sendobj.ID = System.Convert.ToUInt32("0x"+textBox_ID.Text,16);int len = (textBox_Data.Text.Length+1) / 3;sendobj.DataLen =System.Convert.ToByte(len);String strdata = textBox_Data.Text;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(VCI_Transmit(m_devtype,m_devind,m_canind,ref sendobj,1)==0){MessageBox.Show("发送失败", "错误",MessageBoxButtons.OK, MessageBoxIcon.Exclamation);}}private void button_Clear_Click(object sender, EventArgs e){listBox_Info.Items.Clear();}}
}

库函数   VCI_

关闭函数

VCI_CloseDevice(m_devtype, m_devind);// 4,0static UInt32 m_devtype = 4;//USBCAN2
UInt32 m_devind = 0;

连接: 

VCI_OpenDevice       打开硬件设备
#include "ControlCan.h"
int nDeviceType = 4; /* USBCAN-2A或USBCAN-2C或CANalyst-II */
int nDeviceInd = 0; /* 第1个设备 */
DWORD dwRel;
dwRel = VCI_OpenDevice(nDeviceType, nDeviceInd, 0);
if(dwRel != 1)
{
MessageBox(_T("打开设备失败!"), _T("警告"), MB_OK|MB_ICONQUESTION);
return FALSE;
}

if (VCI_OpenDevice(m_devtype, m_devind, 0) == 0)

VCI_InitCAN(m_devtype, m_devind, m_canind, ref config);

timer_rec.Enabled = m_bOpen==1?true:false;     //  开启定时器

else{m_devtype = m_arrdevtype[comboBox_devtype.SelectedIndex];m_devind=(UInt32)comboBox_DevIndex.SelectedIndex;m_canind = (UInt32)comboBox_CANIndex.SelectedIndex;if (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",MessageBoxButtons.OK, MessageBoxIcon.Exclamation);return;}m_bOpen = 1;VCI_INIT_CONFIG config=new VCI_INIT_CONFIG();config.AccCode=System.Convert.ToUInt32("0x" + textBox_AccCode.Text,16);config.AccMask = System.Convert.ToUInt32("0x" + textBox_AccMask.Text, 16);config.Timing0 = System.Convert.ToByte("0x" + textBox_Time0.Text, 16);config.Timing1 = System.Convert.ToByte("0x" + textBox_Time1.Text, 16);config.Filter = (Byte)(comboBox_Filter.SelectedIndex+1);config.Mode = (Byte)comboBox_Mode.SelectedIndex;VCI_InitCAN(m_devtype, m_devind, m_canind, ref config);}buttonConnect.Text = m_bOpen==1?"断开":"连接";timer_rec.Enabled = m_bOpen==1?true:false;}

初始化CAN: 

VCI_InitCAN

需要用到配置表:   VCI_INIT_CONFIG 

CAN启动:VCI_StartCAN

 private void button_StartCAN_Click(object sender, EventArgs e){if (m_bOpen == 0)return;VCI_StartCAN(m_devtype, m_devind, m_canind);// 启动CAN通道(设备类型4,设备索引0,CAN通道索引0) return 1成功}

复位CAN

private void button_StopCAN_Click(object sender, EventArgs e){if (m_bOpen == 0)return;VCI_ResetCAN(m_devtype, m_devind, m_canind);}

CAN发送

 unsafe private void button_Send_Click(object sender, EventArgs e){if(m_bOpen==0)return;VCI_CAN_OBJ sendobj = new VCI_CAN_OBJ();//sendobj.Init();sendobj.RemoteFlag = (byte)comboBox_FrameFormat.SelectedIndex;sendobj.ExternFlag = (byte)comboBox_FrameType.SelectedIndex;sendobj.ID = System.Convert.ToUInt32("0x"+textBox_ID.Text,16);int len = (textBox_Data.Text.Length+1) / 3;sendobj.DataLen =System.Convert.ToByte(len);String strdata = textBox_Data.Text;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(VCI_Transmit(m_devtype,m_devind,m_canind,ref sendobj,1)==0){MessageBox.Show("发送失败", "错误",MessageBoxButtons.OK, MessageBoxIcon.Exclamation);}}

接收显示

res = VCI_Receive(m_devtype, m_devind, m_canind, ref m_recobj[0],1000, 100);

 unsafe private void timer_rec_Tick(object sender, EventArgs e){UInt32 res = new UInt32();res = 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);//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 = "接收到数据: ";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);}}listBox_Info.Items.Add(str);listBox_Info.SelectedIndex = listBox_Info.Items.Count - 1;}//Marshal.FreeHGlobal(ptArray[0]);//Marshal.FreeHGlobal(pt);}

定时器

private System.Windows.Forms.Timer timer_rec;