VB调用周立功CAN接口卡接口库函数

痛定思痛。 2021-07-26 22:48 803阅读 0赞

[周立功CAN相关资源下载][CAN]  
首先，把下载的库函数文件（由上面链接下载）都放在工作目录下。库函数文件总共有三个文件：ControlCAN.h、  
ControlCAN.lib、ControlCAN.dll 和一个文件夹 kerneldlls。

**Module.bas 模块文件代码**

'定义需要用到的数据结构
    Public Type VCI_BOARD_INFO
        hw_Version As Integer
        fw_Version As Integer
        dr_Version As Integer
        in_Version As Integer
        irq_num As Integer
        can_num As Byte
        str_Serial_Num(19) As Byte
        str_hw_Type(39) As Byte
        Reserved(3) As Integer
    End Type
    
    Public Type VCI_CAN_OBJ
        ID As Long
        TimeStamp As Long
        TimeFlag As Byte
        SendType As Byte
        RemoteFlag As Byte
        ExternFlag As Byte
        DataLen As Byte
        data(7) As Byte
        Reserved(2) As Byte
    End Type
    
    Public Type VCI_CAN_STATUS
        ErrInterrupt As Byte
        regMode As Byte
        regStatus As Byte
        regALCapture As Byte
        regECCapture As Byte
        regEWLimit As Byte
        regRECounter As Byte
        regTECounter As Byte
        Reserved As Long
    End Type
    
    Public Type VCI_ERR_INFO
        ErrCode As Long
        Passive_ErrData(2) As Byte
        ArLost_ErrData As Byte
    End Type
    
    Public Type VCI_INIT_CONFIG
        AccCode As Long
        AccMask As Long
        Reserved As Long
        Filter As Byte
        Timing0 As Byte
        Timing1 As Byte
        Mode As Byte
    End Type
    
    Public Type VCI_FILTER_RECORD
        ExtFrame As Long
        Start As Long
        End As Long
    End Type
    
    
    Declare Function VCI_OpenDevice Lib "ControlCAN.dll" (ByVal DeviceType As Long, ByVal DeviceInd As Long, ByVal Reserved As Long) As Long
    
    Declare Function VCI_CloseDevice Lib "ControlCAN.dll" (ByVal DeviceType As Long, ByVal DeviceInd As Long) As Long
    
    Declare Function VCI_InitCAN Lib "ControlCAN.dll" (ByVal DeviceType As Long, ByVal DeviceInd As Long, ByVal CANInd As Long, ByRef InitConfig As VCI_INIT_CONFIG) As Long
    
    Declare Function VCI_ReadBoardInfo Lib "ControlCAN.dll" (ByVal DeviceType As Long, ByVal DeviceInd As Long, ByRef info As VCI_BOARD_INFO) As Long
    
    Declare Function VCI_ReadErrInfo Lib "ControlCAN.dll" (ByVal DeviceType As Long, ByVal DeviceInd As Long, ByVal CANInd As Long, ByRef ErrInfo As VCI_ERR_INFO) As Long
    
    Declare Function VCI_ReadCANStatus Lib "ControlCAN.dll" (ByVal DeviceType As Long, ByVal DeviceInd As Long, ByVal CANInd As Long, ByRef CANStatus As VCI_CAN_STATUS) As Long
    
    Declare Function VCI_GetReference Lib "ControlCAN.dll" (ByVal DeviceType As Long, ByVal DeviceInd As Long, ByVal CANInd As Long, ByVal RefType As Long, ByRef data As Any) As Long
    
    Declare Function VCI_SetReference Lib "ControlCAN.dll" (ByVal DeviceType As Long, ByVal DeviceInd As Long, ByVal CANInd As Long, ByVal RefType As Long, ByRef data As Any) As Long
    
    Declare Function VCI_GetReceiveNum Lib "ControlCAN.dll" (ByVal DeviceType As Long, ByVal DeviceInd As Long, ByVal CANInd As Long) As Long
    
    Declare Function VCI_ClearBuffer Lib "ControlCAN.dll" (ByVal DeviceType As Long, ByVal DeviceInd As Long, ByVal CANInd As Long) As Long
    
    Declare Function VCI_StartCAN Lib "ControlCAN.dll" (ByVal DeviceType As Long, ByVal DeviceInd As Long, ByVal CANInd As Long) As Long
    
    Declare Function VCI_ResetCAN Lib "ControlCAN.dll" (ByVal DeviceType As Long, ByVal DeviceInd As Long, ByVal CANInd As Long) As Long
    
    Declare Function VCI_Transmit Lib "ControlCAN.dll" (ByVal DeviceType As Long, ByVal DeviceInd As Long, ByVal CANInd As Long, ByRef Send As VCI_CAN_OBJ, ByVal length As Long) As Long
    
    Declare Function VCI_Receive Lib "ControlCAN.dll" (ByVal DeviceType As Long, ByVal DeviceInd As Long, ByVal CANInd As Long, ByRef Receive As VCI_CAN_OBJ, ByVal length As Long, ByVal WaitTime As Long) As Long

**窗体代码**

'下面以USBCAN-I设备为例：
    
    Private Sub Form_Load()
        Dim InitConfig As VCI_INIT_CONFIG
        Dim TX_frameinfo As VCI_CAN_OBJ
        Dim RX_frameinfo As VCI_CAN_OBJ
    '初始化
        InitConfig.AccCode = &H0
        InitConfig.AccMask = &HFFFFFFFF
        InitConfig.Filter = 1
        InitConfig.Timing0 = &H1
        InitConfig.Timing1 = &H1C
        InitConfig.Mode = 0
        
    '发送帧信息
        TX_frameinfo.ID = &H18FF3010
        TX_frameinfo.SendType = 0
        TX_frameinfo.RemoteFlag = 0
        TX_frameinfo.ExternFlag = 1
        TX_frameinfo.DataLen = 8
        
        TX_frameinfo.data(0) = &H5
        TX_frameinfo.data(1) = &H1
        TX_frameinfo.data(2) = &H2
        TX_frameinfo.data(3) = &H3
        TX_frameinfo.data(4) = &H4
        TX_frameinfo.data(5) = &H5
        TX_frameinfo.data(6) = &H6
        TX_frameinfo.data(7) = &H7
        
    '发送与接收数据
        Debug.Print ("下面执行操作返回“1”表示操作成功！")
        Debug.Print VCI_OpenDevice(3, 0, 0)
        Debug.Print VCI_SetReference(3, 0, 0, 0, &H1C0008)
        Debug.Print VCI_InitCAN(3, 0, 0, InitConfig)
        Debug.Print VCI_StartCAN(3, 0, 0)
        Debug.Print VCI_ClearBuffer(3, 0, 0)
        Debug.Print VCI_Transmit(3, 0, 0, TX_frameinfo, 1)
        Debug.Print "CAN接收缓存帧数：" & VCI_GetReceiveNum(3, 0, 0)
    '等待CAN缓存区收到数据
        While VCI_GetReceiveNum(3, 0, 0) <= 0
        Wend
    '从CAN缓存区读出一帧数据
        Debug.Print VCI_Receive(3, 0, 0, RX_frameinfo, 100, 400)
        Dim rxstr As String
        For i = 0 To 7
        rxstr = rxstr & RX_frameinfo.data(i)
        Next
        Debug.Print "收到：" & rxstr
    '关闭USBCAN
        VCI_CloseDevice 3, 0
        
    End Sub

**运行结果如下：**  
![在这里插入图片描述][20200113132331212.png]

[CAN]: https://www.zlg.cn/can/down/down/id/22.html
[20200113132331212.png]: /images/20210726/0b2f9312f0c845f383da6389d8ae3b14.png