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| Private Sub MenuItemConnect_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MenuItemConnect.Click
' connect to USB-CANmodul (any modul)
Dim bRet As Byte = 0
Dim ucanMode As UcanDotNET.USBcanServer.tUcanMode
If Me.m_fIsInst1Initialized <> True Then
' check if TxEchoMode should be enabled
If (MenuItemTxEchoMode.Checked() = True) Then
ucanMode = UcanDotNET.USBcanServer.tUcanMode.kUcanModeTxEcho
m_fTxEchoMode = True
Else
ucanMode = UcanDotNET.USBcanServer.tUcanMode.kUcanModeNormal
m_fTxEchoMode = False
End If
' init hardware
Me.m_USBcanInst1 = New UcanDotNET.USBcanServer
Me.m_USBcanInst2 = New UcanDotNET.USBcanServer ' you need to call InitHardware/InitCan methods to initialize the second instance, not done in this demo!
UcanDotNET.USBcanServer.SetDebugMode(&HC0000306, ".\MyLogFile.log")
bRet = Me.m_USBcanInst1.InitHardware(UcanDotNET.USBcanServer.USBCAN_ANY_MODULE)
If (bRet = UcanDotNET.USBcanServer.eUcanReturn.USBCAN_SUCCESSFUL) Then
Debug.WriteLine("InitCan(): baudrate is " + UcanDotNET.USBcanServer.GetBaudrateMessage(UcanDotNET.USBcanServer.eUcanBaudrate.USBCAN_BAUD_500kBit))
' init CAN channel 0
'UcanDotNET.USBcanServer.USBCAN_BAUD_1MBit, _
bRet = Me.m_USBcanInst1.InitCan(UcanDotNET.USBcanServer.eUcanChannel.USBCAN_CHANNEL_CH0, _
UcanDotNET.USBcanServer.eUcanBaudrate.USBCAN_BAUD_1MBit, _
UcanDotNET.USBcanServer.eUcanBaudrateEx.USBCAN_BAUDEX_USE_BTR01, _
UcanDotNET.USBcanServer.USBCAN_AMR_ALL, _
UcanDotNET.USBcanServer.USBCAN_ACR_ALL, _
ucanMode)
If (bRet = UcanDotNET.USBcanServer.eUcanReturn.USBCAN_SUCCESSFUL) Then
Dim HwInfo As UcanDotNET.USBcanServer.tUcanHardwareInfoEx
Dim CanInfoCh0 As UcanDotNET.USBcanServer.tUcanChannelInfo
Dim CanInfoCh1 As UcanDotNET.USBcanServer.tUcanChannelInfo
bRet = Me.m_USBcanInst1.GetHardwareInfo(HwInfo, CanInfoCh0, CanInfoCh1)
If (bRet = UcanDotNET.USBcanServer.eUcanReturn.USBCAN_SUCCESSFUL) Then
m_DeviceNrInst1 = HwInfo.m_bDeviceNr ' is used to check the instance in event handles
End If
If ((bRet = UcanDotNET.USBcanServer.eUcanReturn.USBCAN_SUCCESSFUL) AndAlso _
(UcanDotNET.USBcanServer.CheckSupportCyclicMsg(HwInfo) = True)) Then
Dim aCyclicCanMsg(1) As UcanDotNET.USBcanServer.tCanMsgStruct
Dim aCyclicCanMsgReadBack(1) As UcanDotNET.USBcanServer.tCanMsgStruct
aCyclicCanMsg(0) = UcanDotNET.USBcanServer.tCanMsgStruct.CreateInstance(&H61F)
aCyclicCanMsg(0).m_bData(0) = &H40
aCyclicCanMsg(0).m_bData(1) = &H0
aCyclicCanMsg(0).m_bData(2) = &H10
aCyclicCanMsg(0).m_bData(3) = &H0
aCyclicCanMsg(0).m_dwTime = 1000 ' 1 second
aCyclicCanMsg(1) = UcanDotNET.USBcanServer.tCanMsgStruct.CreateInstance(&H71F, UcanDotNET.USBcanServer.eUcanMsgFrameFormat.USBCAN_MSG_FF_RTR)
aCyclicCanMsg(1).m_bDLC = 1
aCyclicCanMsg(1).m_dwTime = 1200 ' 1.2 seconds
bRet = Me.m_USBcanInst1.DefineCyclicCanMsg(UcanDotNET.USBcanServer.eUcanChannel.USBCAN_CHANNEL_CH0, aCyclicCanMsg)
bRet = Me.m_USBcanInst1.ReadCyclicCanMsg(UcanDotNET.USBcanServer.eUcanChannel.USBCAN_CHANNEL_CH0, aCyclicCanMsgReadBack)
bRet = Me.m_USBcanInst1.EnableCyclicCanMsg(UcanDotNET.USBcanServer.eUcanChannel.USBCAN_CHANNEL_CH0, _
UcanDotNET.USBcanServer.eUcanCyclicFlags.USBCAN_CYCLIC_FLAG_START)
End If
' init CAN channel 1
bRet = Me.m_USBcanInst1.InitCan(UcanDotNET.USBcanServer.eUcanChannel.USBCAN_CHANNEL_CH1, _
UcanDotNET.USBcanServer.eUcanBaudrate.USBCAN_BAUD_1MBit, _
UcanDotNET.USBcanServer.eUcanBaudrateEx.USBCAN_BAUDEX_USE_BTR01, _
UcanDotNET.USBcanServer.USBCAN_AMR_ALL, _
UcanDotNET.USBcanServer.USBCAN_ACR_ALL, _
ucanMode)
If (bRet = UcanDotNET.USBcanServer.eUcanReturn.USBCAN_SUCCESSFUL) Then
' multi channel USB-CANmodul is present
Me.m_f2ndChannelInst1 = True
Me.StatusBarPanelText.Text = "Successfully connected to multi-channel USB-CANmodul"
Else
' single channel USB-CANmodul is present
Me.StatusBarPanelText.Text = "Successfully connected to single-channel USB-CANmodul"
End If
Me.m_fIsInst1Initialized = True
Me.m_RxThread = New Thread(AddressOf Me.ThreadProcReceive)
Me.m_RxThread.Start()
Else ' error while CAN channel 0 init
Me.m_USBcanInst1.Dispose()
Me.m_USBcanInst1 = Nothing
Me.StatusBarPanelText.Text = "Initialisation of CAN failed"
End If
Else ' error while hardware init
Me.m_USBcanInst1.Dispose()
Me.m_USBcanInst1 = Nothing
Me.StatusBarPanelText.Text = "Initialisation of Hardware failed"
End If
Me.StatusBarPanelCode.Text = bRet.ToString("X2")
If m_fIsInst1Initialized = True Then
MenuItemConnect.Enabled = False
MenuItemShutdown.Enabled = True
End If
Else
Me.StatusBarPanelText.Text = "Already Connected"
End If
End Sub |
