1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
| '(c) SYSTEC electronic GmbH, D-07973 Greiz, August-Bebel-Str. 29
' <a href="http://www.systec-electronic.de" target="_blank">www.systec-electronic.de</a>
'Project: Demoapplet to test .NET Interface for USB-CANmodul GW-00x
'Description: Demoapplet
'-------------------------------------------------------------------------
' $RCSfile:$
' $Author:$
' $Revision:$ $Date:$
' $State:$
' Build Environment:
' Microsoft Visual Studio .NET (Visual Basic .NET)
'-------------------------------------------------------------------------
'Revision History:
' 2005/23/11 d.k.: new
'ToDo:
'- show bits of CanStatus from GetStatus() in separate StatusBarPanels
Imports System.Threading
Public Class MainForm
Inherits System.Windows.Forms.Form
#Region " Variable ######################################################################## "
' delegate for listview updates
Delegate Sub DelegateListViewItem(ByRef item As ListViewItem)
' the wrapper object to USBCAN32.DLL
Protected WithEvents m_USBcanInst1 As UcanDotNET.USBcanServer
Protected WithEvents m_USBcanInst2 As UcanDotNET.USBcanServer
' are the hardware and all existing CAN channels initialized
Protected m_fIsInst1Initialized As Boolean = False
Protected m_fIsInst2Initialized As Boolean = False
' does exist the 2nd CAN channel, i.e. USBCAN_CHANNEL_CH1
Protected m_f2ndChannelInst1 As Boolean = False
Protected m_f2ndChannelInst2 As Boolean = False
' device number is used to check the instances
Protected m_DeviceNrInst1 As Byte = 255
Protected m_DeviceNrInst2 As Byte = 255
' USB-CANmodul is in TxEchoMode
Protected m_fTxEchoMode As Boolean = False
' CAN message which will be sent
Protected m_canMsgStruct(0) As UcanDotNET.USBcanServer.tCanMsgStruct
' message counter (of sent messages)
Protected m_dwMsgCount As Integer = 0
' receiver thread
Protected m_RxThread As Thread
' wait handles for receiver thread (0 = do exit, 1 = received msg, 2 = status changed)
Protected m_RxWaitHandles() As WaitHandle = {New AutoResetEvent(False), New AutoResetEvent(False), New AutoResetEvent(False)}
#End Region
#Region " Vom Windows Form Designer generierter Code "
Public Sub New()
MyBase.New()
' Dieser Aufruf ist für den Windows Form-Designer erforderlich.
InitializeComponent()
' Initialisierungen nach dem Aufruf InitializeComponent() hinzufügen
m_canMsgStruct(0) = UcanDotNET.USBcanServer.tCanMsgStruct.CreateInstance(&H441)
' test with Extended Frame Format
'm_canMsgStruct(0) = USBcanLib.USBcanServer.tCanMsgStruct.CreateInstance(&H4441)
'm_canMsgStruct(0).m_bFF = USBcanLib.USBcanServer.USBCAN_MSG_FF_EXT
m_canMsgStruct(0).m_bDLC = 8
End Sub
' Die Form überschreibt den Löschvorgang der Basisklasse, um Komponenten zu bereinigen.
Protected Overloads Overrides Sub Dispose(ByVal disposing As Boolean)
If disposing Then
If Not (components Is Nothing) Then
components.Dispose()
End If
End If
MyBase.Dispose(disposing)
End Sub
' Für Windows Form-Designer erforderlich
Private components As System.ComponentModel.IContainer
'HINWEIS: Die folgende Prozedur ist für den Windows Form-Designer erforderlich
'Sie kann mit dem Windows Form-Designer modifiziert werden.
'Verwenden Sie nicht den Code-Editor zur Bearbeitung.
Friend WithEvents MainMenu As System.Windows.Forms.MainMenu
Friend WithEvents MenuItemFile As System.Windows.Forms.MenuItem
Friend WithEvents MenuItemExit As System.Windows.Forms.MenuItem
Friend WithEvents StatusBar As System.Windows.Forms.StatusBar
Friend WithEvents CanMsgListView As System.Windows.Forms.ListView
Friend WithEvents ColumnHeaderMsg As System.Windows.Forms.ColumnHeader
Friend WithEvents ColumnHeaderLength As System.Windows.Forms.ColumnHeader
Friend WithEvents ColumnHeaderData As System.Windows.Forms.ColumnHeader
Friend WithEvents ColumnHeaderTime As System.Windows.Forms.ColumnHeader
Friend WithEvents MenuItemDevice As System.Windows.Forms.MenuItem
Friend WithEvents MenuItemConnect As System.Windows.Forms.MenuItem
Friend WithEvents MenuItemSendMsg As System.Windows.Forms.MenuItem
Friend WithEvents StatusBarPanelText As System.Windows.Forms.StatusBarPanel
Friend WithEvents StatusBarPanelCode As System.Windows.Forms.StatusBarPanel
Friend WithEvents MenuItemResetCan As System.Windows.Forms.MenuItem
Friend WithEvents MenuItemHwInfo As System.Windows.Forms.MenuItem
Friend WithEvents ColumnHeaderChannel As System.Windows.Forms.ColumnHeader
Friend WithEvents StatusBarPanelPID As System.Windows.Forms.StatusBarPanel
Friend WithEvents MenuItemShutdown As System.Windows.Forms.MenuItem
Friend WithEvents MenuItemTxEchoMode As System.Windows.Forms.MenuItem
<System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()
Me.components = New System.ComponentModel.Container
Me.MainMenu = New System.Windows.Forms.MainMenu(Me.components)
Me.MenuItemFile = New System.Windows.Forms.MenuItem
Me.MenuItemExit = New System.Windows.Forms.MenuItem
Me.MenuItemDevice = New System.Windows.Forms.MenuItem
Me.MenuItemTxEchoMode = New System.Windows.Forms.MenuItem
Me.MenuItemConnect = New System.Windows.Forms.MenuItem
Me.MenuItemSendMsg = New System.Windows.Forms.MenuItem
Me.MenuItemResetCan = New System.Windows.Forms.MenuItem
Me.MenuItemHwInfo = New System.Windows.Forms.MenuItem
Me.MenuItemShutdown = New System.Windows.Forms.MenuItem
Me.StatusBar = New System.Windows.Forms.StatusBar
Me.StatusBarPanelText = New System.Windows.Forms.StatusBarPanel
Me.StatusBarPanelCode = New System.Windows.Forms.StatusBarPanel
Me.StatusBarPanelPID = New System.Windows.Forms.StatusBarPanel
Me.CanMsgListView = New System.Windows.Forms.ListView
Me.ColumnHeaderChannel = New System.Windows.Forms.ColumnHeader
Me.ColumnHeaderMsg = New System.Windows.Forms.ColumnHeader
Me.ColumnHeaderLength = New System.Windows.Forms.ColumnHeader
Me.ColumnHeaderData = New System.Windows.Forms.ColumnHeader
Me.ColumnHeaderTime = New System.Windows.Forms.ColumnHeader
CType(Me.StatusBarPanelText, System.ComponentModel.ISupportInitialize).BeginInit()
CType(Me.StatusBarPanelCode, System.ComponentModel.ISupportInitialize).BeginInit()
CType(Me.StatusBarPanelPID, System.ComponentModel.ISupportInitialize).BeginInit()
Me.SuspendLayout()
'
'MainMenu
'
Me.MainMenu.MenuItems.AddRange(New System.Windows.Forms.MenuItem() {Me.MenuItemFile, Me.MenuItemDevice})
'
'MenuItemFile
'
Me.MenuItemFile.Index = 0
Me.MenuItemFile.MenuItems.AddRange(New System.Windows.Forms.MenuItem() {Me.MenuItemExit})
Me.MenuItemFile.Text = "&File"
'
'MenuItemExit
'
Me.MenuItemExit.Index = 0
Me.MenuItemExit.Text = "E&xit"
'
'MenuItemDevice
'
Me.MenuItemDevice.Index = 1
Me.MenuItemDevice.MenuItems.AddRange(New System.Windows.Forms.MenuItem() {Me.MenuItemTxEchoMode, Me.MenuItemConnect, Me.MenuItemSendMsg, Me.MenuItemResetCan, Me.MenuItemHwInfo, Me.MenuItemShutdown})
Me.MenuItemDevice.Text = "&Device"
'
'MenuItemTxEchoMode
'
Me.MenuItemTxEchoMode.Index = 0
Me.MenuItemTxEchoMode.Shortcut = System.Windows.Forms.Shortcut.CtrlT
Me.MenuItemTxEchoMode.Text = "&Tx Echo Mode"
'
'MenuItemConnect
'
Me.MenuItemConnect.Index = 1
Me.MenuItemConnect.Shortcut = System.Windows.Forms.Shortcut.CtrlC
Me.MenuItemConnect.Text = "&Connect"
'
'MenuItemSendMsg
'
Me.MenuItemSendMsg.Index = 2
Me.MenuItemSendMsg.Shortcut = System.Windows.Forms.Shortcut.CtrlS
Me.MenuItemSendMsg.Text = "&Send CAN Message"
'
'MenuItemResetCan
'
Me.MenuItemResetCan.Index = 3
Me.MenuItemResetCan.Shortcut = System.Windows.Forms.Shortcut.CtrlR
Me.MenuItemResetCan.Text = "&Reset CAN"
'
'MenuItemHwInfo
'
Me.MenuItemHwInfo.Index = 4
Me.MenuItemHwInfo.Shortcut = System.Windows.Forms.Shortcut.CtrlI
Me.MenuItemHwInfo.Text = "Hardware &Info"
'
'MenuItemShutdown
'
Me.MenuItemShutdown.Index = 5
Me.MenuItemShutdown.Shortcut = System.Windows.Forms.Shortcut.CtrlD
Me.MenuItemShutdown.Text = "&Disconnect"
'
'StatusBar
'
Me.StatusBar.Location = New System.Drawing.Point(0, 166)
Me.StatusBar.Name = "StatusBar"
Me.StatusBar.Panels.AddRange(New System.Windows.Forms.StatusBarPanel() {Me.StatusBarPanelText, Me.StatusBarPanelCode, Me.StatusBarPanelPID})
Me.StatusBar.ShowPanels = True
Me.StatusBar.Size = New System.Drawing.Size(769, 24)
Me.StatusBar.TabIndex = 0
Me.StatusBar.Text = "Not Connected"
'
'StatusBarPanelText
'
Me.StatusBarPanelText.AutoSize = System.Windows.Forms.StatusBarPanelAutoSize.Spring
Me.StatusBarPanelText.Name = "StatusBarPanelText"
Me.StatusBarPanelText.Text = "NotConnected"
Me.StatusBarPanelText.Width = 458
'
'StatusBarPanelCode
'
Me.StatusBarPanelCode.Alignment = System.Windows.Forms.HorizontalAlignment.Center
Me.StatusBarPanelCode.Name = "StatusBarPanelCode"
Me.StatusBarPanelCode.Text = "00"
Me.StatusBarPanelCode.ToolTipText = "USBCAN32.DLL ErrorCode"
Me.StatusBarPanelCode.Width = 23
'
'StatusBarPanelPID
'
Me.StatusBarPanelPID.Alignment = System.Windows.Forms.HorizontalAlignment.Center
Me.StatusBarPanelPID.Name = "StatusBarPanelPID"
Me.StatusBarPanelPID.Text = "0ABC"
Me.StatusBarPanelPID.ToolTipText = "ProcessID"
Me.StatusBarPanelPID.Width = 36
'
'CanMsgListView
'
Me.CanMsgListView.AllowColumnReorder = True
Me.CanMsgListView.Columns.AddRange(New System.Windows.Forms.ColumnHeader() {Me.ColumnHeaderChannel, Me.ColumnHeaderMsg, Me.ColumnHeaderLength, Me.ColumnHeaderData, Me.ColumnHeaderTime})
Me.CanMsgListView.Dock = System.Windows.Forms.DockStyle.Fill
Me.CanMsgListView.FullRowSelect = True
Me.CanMsgListView.GridLines = True
Me.CanMsgListView.Location = New System.Drawing.Point(0, 0)
Me.CanMsgListView.Name = "CanMsgListView"
Me.CanMsgListView.Size = New System.Drawing.Size(769, 166)
Me.CanMsgListView.TabIndex = 1
Me.CanMsgListView.UseCompatibleStateImageBehavior = False
Me.CanMsgListView.View = System.Windows.Forms.View.Details
'
'ColumnHeaderChannel
'
Me.ColumnHeaderChannel.Text = "Ch"
Me.ColumnHeaderChannel.Width = 25
'
'ColumnHeaderMsg
'
Me.ColumnHeaderMsg.Text = "Msg"
Me.ColumnHeaderMsg.Width = 75
'
'ColumnHeaderLength
'
Me.ColumnHeaderLength.Text = "Length"
Me.ColumnHeaderLength.Width = 47
'
'ColumnHeaderData
'
Me.ColumnHeaderData.Text = "Data"
Me.ColumnHeaderData.Width = 146
'
'ColumnHeaderTime
'
Me.ColumnHeaderTime.Text = "Time"
Me.ColumnHeaderTime.Width = 82
'
'MainForm
'
Me.AutoScaleBaseSize = New System.Drawing.Size(5, 13)
Me.ClientSize = New System.Drawing.Size(769, 190)
Me.Controls.Add(Me.CanMsgListView)
Me.Controls.Add(Me.StatusBar)
Me.Menu = Me.MainMenu
Me.Name = "MainForm"
Me.Text = "USBcanDemoVB.Net"
CType(Me.StatusBarPanelText, System.ComponentModel.ISupportInitialize).EndInit()
CType(Me.StatusBarPanelCode, System.ComponentModel.ISupportInitialize).EndInit()
CType(Me.StatusBarPanelPID, System.ComponentModel.ISupportInitialize).EndInit()
Me.ResumeLayout(False)
End Sub
#End Region
#Region " MainForm events ################################################################# "
'--------------------------------------------------------------------------------------------
'
'--------------------------------------------------------------------------------------------
Private Sub MainForm_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Dim currentProcess As Process = Process.GetCurrentProcess()
StatusBarPanelPID.Text = currentProcess.Id.ToString()
MenuItemConnect.Enabled = True
MenuItemShutdown.Enabled = False
End Sub
'--------------------------------------------------------------------------------------------
'
'--------------------------------------------------------------------------------------------
Private Sub MainForm_Closing(ByVal sender As System.Object, ByVal e As System.ComponentModel.CancelEventArgs) Handles MyBase.Closing
' tidy up all resources
DeleteAllResources()
End Sub
#End Region
#Region " MenuItem events ################################################################# "
'--------------------------------------------------------------------------------------------
'
'--------------------------------------------------------------------------------------------
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
'--------------------------------------------------------------------------------------------
'
'--------------------------------------------------------------------------------------------
Private Sub MenuItemExit_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MenuItemExit.Click
' close the window
Me.Close()
End Sub
'--------------------------------------------------------------------------------------------
'
'--------------------------------------------------------------------------------------------
Private Sub CanMsgListView_SelectedIndexChanged(ByVal sender As System.Object, ByVal e As EventArgs) Handles CanMsgListView.SelectedIndexChanged
' show the number of selected messages in the statusbar
Dim iCount As Integer = CanMsgListView.SelectedItems.Count
If iCount > 0 Then
Me.StatusBarPanelText.Text = iCount & " messages were selected"
Else
Me.StatusBarPanelText.Text = "No messages are selected"
End If
End Sub
'--------------------------------------------------------------------------------------------
'
'--------------------------------------------------------------------------------------------
Private Sub MenuItemSendMsg_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MenuItemSendMsg.Click
' User wishes to send a CAN message
If (m_fIsInst1Initialized = True) Then
Dim bRet As Byte = 0
' fill message data with current counter value
m_canMsgStruct(0).m_bData(0) = (m_dwMsgCount >> 24) And &HFF
m_canMsgStruct(0).m_bData(1) = (m_dwMsgCount >> 16) And &HFF
m_canMsgStruct(0).m_bData(2) = (m_dwMsgCount >> 8) And &HFF
m_canMsgStruct(0).m_bData(3) = (m_dwMsgCount) And &HFF
' send message
bRet = m_USBcanInst1.WriteCanMsg(UcanDotNET.USBcanServer.eUcanChannel.USBCAN_CHANNEL_CH0, m_canMsgStruct)
If (bRet = UcanDotNET.USBcanServer.eUcanReturn.USBCAN_SUCCESSFUL) Then
Me.StatusBarPanelText.Text = "Sent CAN message"
Me.StatusBarPanelCode.Text = bRet.ToString("X2")
SyncLock (Me.m_USBcanInst1)
If (m_fTxEchoMode = False) Then
' add this message to list
addCanMessage(m_canMsgStruct(0), 0, False)
' ensure visibility of last message in list
CanMsgListView.EnsureVisible(CanMsgListView.Items.Count() - 1)
End If
End SyncLock
Else ' error
Me.StatusBarPanelText.Text = "Error while sending CAN message"
Me.StatusBarPanelCode.Text = bRet.ToString("X2")
End If
' increment message counter
m_dwMsgCount += 1
End If
End Sub
'--------------------------------------------------------------------------------------------
'
'--------------------------------------------------------------------------------------------
Private Sub MenuItemResetCan_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MenuItemResetCan.Click
' User wants to reset the USB-CANmodul
If (m_fIsInst1Initialized = True) Then
' reset CAN channel 0
Dim bRet As Byte = 0
If (Me.m_USBcanInst1.IsCan0Initialized()) Then
bRet = m_USBcanInst1.ResetCan(UcanDotNET.USBcanServer.eUcanChannel.USBCAN_CHANNEL_CH0, UcanDotNET.USBcanServer.eUcanResetFlags.USBCAN_RESET_ONLY_ALL_BUFF)
If (bRet = UcanDotNET.USBcanServer.eUcanReturn.USBCAN_SUCCESSFUL) Then
Me.StatusBarPanelText.Text = "Successfully reset CAN channel 0"
Me.StatusBarPanelCode.Text = bRet.ToString("X2")
' delete all messages in list
CanMsgListView.Items.Clear()
Else
Me.StatusBarPanelText.Text = "Error while reseting CAN channel 0"
Me.StatusBarPanelCode.Text = bRet.ToString("X2")
End If
End If
'If (m_f2ndChannelInst1 = True) Then
If (Me.m_USBcanInst1.IsCan1Initialized()) Then
bRet = m_USBcanInst1.ResetCan(UcanDotNET.USBcanServer.eUcanChannel.USBCAN_CHANNEL_CH1)
If (bRet = UcanDotNET.USBcanServer.eUcanReturn.USBCAN_SUCCESSFUL) Then
Me.StatusBarPanelText.Text = "Successfully reset CAN channel 1"
Me.StatusBarPanelCode.Text = bRet.ToString("X2")
' delete all messages in list
CanMsgListView.Items.Clear()
Else
Me.StatusBarPanelText.Text = "Error while reseting CAN channel 1"
Me.StatusBarPanelCode.Text = bRet.ToString("X2")
End If
End If
End If
End Sub
'--------------------------------------------------------------------------------------------
'
'--------------------------------------------------------------------------------------------
Private Sub MenuItemHwInfo_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MenuItemHwInfo.Click
' Show Hardware Info Dialog
If m_fIsInst1Initialized = True Then
Dim hwInfoForm As HwInfoForm = New HwInfoForm
Me.StatusBarPanelText.Text = "Hardware Info"
hwInfoForm.SetUSBcan(m_USBcanInst1)
hwInfoForm.ShowDialog(Me)
End If
End Sub
'--------------------------------------------------------------------------------------------
'
'--------------------------------------------------------------------------------------------
Private Sub MenuItemShutdown_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MenuItemShutdown.Click
Me.StatusBarPanelText.Text = "USB-CANmodul is being shut down"
' tidy up all resources
DeleteAllResources()
If (Me.m_fIsInst1Initialized = True) Then
Me.MenuItemTxEchoMode.Enabled = True
Me.StatusBarPanelText.Text = "Not Connected"
End If
MenuItemConnect.Enabled = True
MenuItemShutdown.Enabled = False
End Sub
'--------------------------------------------------------------------------------------------
'
'--------------------------------------------------------------------------------------------
Private Sub MenuItemTxEchoMode_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MenuItemTxEchoMode.Click
' toggle menu item
If (Me.MenuItemTxEchoMode.Checked() = True) Then
Me.MenuItemTxEchoMode.Checked = False
Else
Me.MenuItemTxEchoMode.Checked = True
End If
End Sub
#End Region
#Region " USBCAN events ################################################################### "
' NOTE:
' Do not call any API functions within an USBCAN event handler to prevent dead locks
'--------------------------------------------------------------------------------------------
'
'--------------------------------------------------------------------------------------------
Private Sub USBcan_CanMsgReceived(ByVal bDeviceNr_p As Byte, ByVal bChannel_p As Byte) Handles m_USBcanInst1.CanMsgReceivedEvent
If (Me.m_DeviceNrInst1 = bDeviceNr_p) Then
' signal event for received CAN message(s)
Dim are As AutoResetEvent = CType(Me.m_RxWaitHandles(1), AutoResetEvent)
are.Set()
End If
End Sub
' NOTE:
' Do not call any API functions within an USBCAN event handler to prevent dead locks
'--------------------------------------------------------------------------------------------
'
'--------------------------------------------------------------------------------------------
'Private Sub USBcan_CanMsgReceived(ByVal bChannel_p As Byte) Handles m_USBcanInst1.CanMsgReceivedEvent
'
' ' at least one message can be read
' Dim canMsgStruct(4) As UcanDotNET.USBcanServer.tCanMsgStruct
' Dim dwCount As Integer = 0
' Dim bRet As Byte = 0
' Dim iIndexCanMsgStruct As Integer = 0
' Dim bOldChannel As Integer = bChannel_p
'
' Do ' loop until there are no more messages in queue
'
' bChannel_p = bOldChannel
'
' ' read message from queue
' bRet = Me.m_USBcanInst1.ReadCanMsg(bChannel_p, canMsgStruct, dwCount)
' If (bRet = UcanDotNET.USBcanServer.USBCAN_SUCCESSFUL) Then
'
' Me.StatusBarPanelCode.Text = bRet.ToString("X2")
' Me.StatusBarPanelText.Text = dwCount.ToString() + " new CAN message received"
'
' SyncLock (Me.m_USBcanInst1)
' ' add messages to list
' For iIndexCanMsgStruct = 0 To dwCount - 1
' addCanMessage(canMsgStruct(iIndexCanMsgStruct), bChannel_p)
' Next
' End SyncLock
'
' ElseIf (bRet = UcanDotNET.USBcanServer.USBCAN_WARN_NODATA) Then
' ' Ok, but message queue is empty
' Else ' error
' Me.StatusBarPanelCode.Text = bRet.ToString("X2")
' Me.StatusBarPanelText.Text = "Error while reading CAN message"
' End If
'
' Loop While (bRet = UcanDotNET.USBcanServer.USBCAN_SUCCESSFUL)
'
' ' ensure visibility of last message in list
' If (CanMsgListView.Items.Count() > 0) Then
' CanMsgListView.EnsureVisible(CanMsgListView.Items.Count() - 1)
' End If
'
'End Sub
' NOTE:
' Do not call any API functions within an USBCAN event handler to prevent dead locks
'--------------------------------------------------------------------------------------------
'
'--------------------------------------------------------------------------------------------
Private Sub USBcan_FatalDisconnect(ByVal bDeviceNr_p As Byte) Handles m_USBcanInst1.FatalDisconnectEvent
' USB-CANmodul was disconnected
Me.EditStatusBar(0, "USB-CANmodul (Device No. " + bDeviceNr_p.ToString() + ") was manually disconnected!")
' tidy up all resources
DeleteAllResources()
MenuItemConnect.Enabled = True
MenuItemShutdown.Enabled = False
End Sub
' NOTE:
' Do not call any API functions within an USBCAN event handler to prevent dead locks
'--------------------------------------------------------------------------------------------
'
'--------------------------------------------------------------------------------------------
Private Sub USBcan_Status(ByVal bDeviceNr_p As Byte, ByVal bChannel_p As Byte) Handles m_USBcanInst1.StatusEvent
' signal event for status changed
Dim are As AutoResetEvent = CType(Me.m_RxWaitHandles(2), AutoResetEvent)
are.Set()
End Sub
' NOTE:
' Do not call any API functions within an USBCAN event handler to prevent dead locks
'--------------------------------------------------------------------------------------------
'
'--------------------------------------------------------------------------------------------
'Private Sub USBcan_Status(ByVal bChannel_p As Byte) Handles m_USBcanInst1.StatusEvent
'
' ' status of USB-CANmodul changed
' Dim status As UcanDotNET.USBcanServer.tStatusStruct
' Dim bRet As Byte = 0
'
' Console.WriteLine("Status channel: " + bChannel_p.ToString())
' bRet = m_USBcanInst1.GetStatus(bChannel_p, status)
' If (bRet = UcanDotNET.USBcanServer.USBCAN_SUCCESSFUL) Then
' Me.StatusBarPanelText.Text = "CAN status of channel " + bChannel_p.ToString() + ": " + status.m_wCanStatus.ToString("X4")
' Me.StatusBarPanelCode.Text = bRet.ToString("X2")
' Else
' Me.StatusBarPanelText.Text = "Error while reading status"
' Me.StatusBarPanelCode.Text = bRet.ToString("X2")
' End If
'
'End Sub
#End Region
#Region " Receiver thread ################################################################# "
'--------------------------------------------------------------------------------------------
'
'--------------------------------------------------------------------------------------------
Public Sub ThreadProcReceive()
Dim fDoExit As Boolean = False
Do
' wait for receiving messages or exiting this thread
Dim index As Integer = WaitHandle.WaitAny(Me.m_RxWaitHandles)
If (index = 0) Then
' exit this thread
fDoExit = True
ElseIf (index = 1) Then
' receive all messages
ReceiveAllCanMessages()
ElseIf (index = 2) Then
' exit this thread
ReceiveStatus(UcanDotNET.USBcanServer.eUcanChannel.USBCAN_CHANNEL_CH0)
ReceiveStatus(UcanDotNET.USBcanServer.eUcanChannel.USBCAN_CHANNEL_CH1)
End If
Loop While (fDoExit = False)
End Sub
#End Region
#Region " Subroutines and functions ####################################################### "
'--------------------------------------------------------------------------------------------
'
'--------------------------------------------------------------------------------------------
Private Sub ReceiveAllCanMessages()
' at least one message can be read
Dim canMsgStruct(4) As UcanDotNET.USBcanServer.tCanMsgStruct
Dim dwCount As Integer = 0
Dim bRet As Byte = 0
Dim iIndexCanMsgStruct As Integer = 0
Dim bChannel As Byte
Do ' loop until there are no more messages in queue
' read message from queue
bChannel = UcanDotNET.USBcanServer.eUcanChannel.USBCAN_CHANNEL_ANY
bRet = Me.m_USBcanInst1.ReadCanMsg(bChannel, canMsgStruct, dwCount)
If (bRet = UcanDotNET.USBcanServer.eUcanReturn.USBCAN_SUCCESSFUL) Then
'Me.StatusBarPanelCode.Text = bRet.ToString("X2")
'Me.StatusBarPanelText.Text = dwCount.ToString() + " new CAN message received"
Me.EditStatusBar(bRet, dwCount.ToString() + " new CAN message received")
' add messages to list
For iIndexCanMsgStruct = 0 To dwCount - 1
addCanMessage(canMsgStruct(iIndexCanMsgStruct), bChannel)
Next
ElseIf (bRet = UcanDotNET.USBcanServer.eUcanReturn.USBCAN_WARN_NODATA) Then
' Ok, but message queue is empty
Else ' error
'Me.StatusBarPanelCode.Text = bRet.ToString("X2")
'Me.StatusBarPanelText.Text = "Error while reading CAN message"
Me.EditStatusBar(bRet, "Error while reading CAN message")
End If
Loop While (bRet = UcanDotNET.USBcanServer.eUcanReturn.USBCAN_SUCCESSFUL)
' ensure visibility of last message in list
CanMsgListView.Invoke(New MethodInvoker(AddressOf EnsureVisibleListViewItem))
End Sub
'--------------------------------------------------------------------------------------------
'
'--------------------------------------------------------------------------------------------
Protected Sub addCanMessage(ByRef canMsgStruct_p As UcanDotNET.USBcanServer.tCanMsgStruct, ByVal bChannel_p As Byte, Optional ByVal fRecvd As Boolean = True)
' add the supplied CAN message to the list
Dim astrItems(4) As String
Dim iIndex As Integer
Dim aListViewItem As ListViewItem() ' array
' column 0: Channel
astrItems(0) = bChannel_p.ToString()
' column 1: MsgID
If ((canMsgStruct_p.m_bFF And CType(UcanDotNET.USBcanServer.eUcanMsgFrameFormat.USBCAN_MSG_FF_EXT, Byte)) <> 0) Then
astrItems(1) = "0x" + canMsgStruct_p.m_dwID.ToString("X8")
Else
astrItems(1) = "0x" + canMsgStruct_p.m_dwID.ToString("X3")
End If
' column 2: Length
astrItems(2) = canMsgStruct_p.m_bDLC
' column 3: Data
If (canMsgStruct_p.m_bFF And UcanDotNET.USBcanServer.eUcanMsgFrameFormat.USBCAN_MSG_FF_RTR) <> 0 Then
astrItems(3) = "Remote Request"
Else
astrItems(3) = ""
For iIndex = 0 To canMsgStruct_p.m_bDLC - 1
astrItems(3) = astrItems(3) + canMsgStruct_p.m_bData(iIndex).ToString("X2") + " "
Next
End If
' column 4: Time
If ((canMsgStruct_p.m_bFF And UcanDotNET.USBcanServer.eUcanMsgFrameFormat.USBCAN_MSG_FF_ECHO) <> 0) Then
astrItems(4) = "Ex " + canMsgStruct_p.m_dwTime.ToString()
ElseIf fRecvd = True Then
astrItems(4) = "Rx " + canMsgStruct_p.m_dwTime.ToString()
Else
astrItems(4) = "Tx"
End If
' add new item to list
''''CanMsgListView.Invoke(New DelegateListViewItem(AddressOf AddListViewItem), New ListViewItem(astrItems))
aListViewItem = New ListViewItem() {} ' r.d.: this way is needed because VS2003 results in error "error BC30311" when using the line before
aListViewItem.SetValue(New ListViewItem(astrItems), 0)
CanMsgListView.Invoke(New DelegateListViewItem(AddressOf AddListViewItem), aListViewItem)
End Sub
Private Sub AddListViewItem(ByRef item As ListViewItem)
CanMsgListView.Items.Add(item)
End Sub
Private Sub EnsureVisibleListViewItem()
If (Me.CanMsgListView.Items.Count() > 0) Then
Me.CanMsgListView.EnsureVisible(CanMsgListView.Items.Count() - 1)
End If
End Sub
'--------------------------------------------------------------------------------------------
'
'--------------------------------------------------------------------------------------------
Private Sub ReceiveStatus(ByVal bChannel_p As Integer)
' status of USB-CANmodul changed
Dim status As UcanDotNET.USBcanServer.tStatusStruct
Dim bRet As Byte = 0
'Console.WriteLine("Status channel: " + bChannel_p.ToString())
bRet = Me.m_USBcanInst1.GetStatus(bChannel_p, status)
If (bRet = UcanDotNET.USBcanServer.eUcanReturn.USBCAN_SUCCESSFUL) Then
'Me.StatusBarPanelText.Text = "CAN status of channel " + bChannel_p.ToString() + ": " + status.m_wCanStatus.ToString("X4")
'Me.StatusBarPanelCode.Text = bRet.ToString("X2")
Me.EditStatusBar(bRet, "CAN status of channel " + bChannel_p.ToString() + ": " + status.m_wCanStatus.ToString("X4"))
' debug output to test the conversion funtion
Debug.WriteLine("CAN status: " + UcanDotNET.USBcanServer.GetCanStatusMessage(status.m_wCanStatus))
Else
'Me.StatusBarPanelText.Text = "Error while reading status"
'Me.StatusBarPanelCode.Text = bRet.ToString("X2")
Me.EditStatusBar(bRet, "Error while reading status")
End If
End Sub
Private Sub DeleteAllResources()
' tidy up all resources
If (Me.m_fIsInst1Initialized = True) Then
' abort the receiver thread
Dim are As AutoResetEvent = CType(Me.m_RxWaitHandles(0), AutoResetEvent)
For i As Integer = 1 To 5
are.Set()
'Me.m_RxThread.Abort()
If (m_RxThread.Join(500) = True) Then
Exit For
End If
Next i
Me.m_RxThread = Nothing
' shut down the complete USBCAN interface (means all CAN channels and hardware)
Me.m_USBcanInst1.Shutdown()
Me.m_fIsInst1Initialized = False
Thread.Sleep(500) ' sleep some time to prevent that some other threads are using some form recources
Me.m_USBcanInst1 = Nothing
End If
End Sub
Private m_bErrorCode As Byte
Private m_strStatusText As String
Private Sub ThreadSafeEditStatusBar()
Me.StatusBarPanelCode.Text = m_bErrorCode.ToString("X2")
Me.StatusBarPanelText.Text = m_strStatusText
End Sub
Public Sub EditStatusBar(ByVal bErrorCode_p As Byte, ByVal strStatus_p As String)
SyncLock Me
Me.m_bErrorCode = bErrorCode_p
Me.m_strStatusText = strStatus_p
Me.Invoke(New MethodInvoker(AddressOf ThreadSafeEditStatusBar))
End SyncLock
End Sub
#End Region
Private Sub StatusBar_PanelClick(ByVal sender As System.Object, ByVal e As System.Windows.Forms.StatusBarPanelClickEventArgs) Handles StatusBar.PanelClick
End Sub
End Class |
Aider pour comprendre un programme en vb.net
Répondre avec citation
Partager