Mscomm Error Reading Comm Device
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Forum Visual Basic Programming Visual Basic 6.0 Programming Run-time error '8020' Error reading comm device If this is your first visit, be sure to check out the FAQ by clicking
Runtime Error 8020 Reading Comm Device Windows 10
the link above. You may have to register or Login before you can mscomm32.ocx replacement post: click the register link above to proceed. To start viewing messages, select the forum that you want to visit from run-time error '8020' windows 10 the selection below. Results 1 to 15 of 15 Thread: Run-time error '8020' Error reading comm device Tweet Thread Tools Show Printable Version Email this Page… Subscribe to this Thread… Display Linear Mode Switch to http://answers.microsoft.com/en-us/windows/forum/windows_10-update/run-time-error-8020-error-reading-comm-device/a0e4df03-ba48-45cf-b8c3-9bbb2b256e7c Hybrid Mode Switch to Threaded Mode October 17th, 2005,01:48 AM #1 tpadhu View Profile View Forum Posts Member Join Date Oct 2005 Posts 113 Run-time error '8020' Error reading comm device hi, how to solve Run-time error '8020' - (Error reading comm device ) any ideas? thanks October 17th, 2005,03:35 AM #2 Bill Crawley View Profile View Forum Posts Visit Homepage Senior Member Join Date Aug 2000 Location Essex, Uk http://forums.codeguru.com/showthread.php?361220-Run-time-error-8020-Error-reading-comm-device Posts 1,214 Re: Run-time error '8020' Error reading comm device Please show how you have declared the connection and how you are attempting to open the port Also check this out http://support.microsoft.com/default...b;en-us;318784 If you find my answers helpful, dont forget to rate me October 17th, 2005,04:30 AM #3 tpadhu View Profile View Forum Posts Member Join Date Oct 2005 Posts 113 Re: Run-time error '8020' Error reading comm device hi, This is my port setting procedure. Is anything wrong? Some times i'm getting " Set comm state failure error" too. Private Sub Form_Load() With MSComm1 .CommPort = 1 .RThreshold = 1 .Settings = "38400,n,8,1" .InputLen = 0 .SThreshold = 1 .InBufferCount = 0 .OutBufferCount = 0 .PortOpen = True End If MSComm1.Output = Chr(65) + Chr(80) + Chr(48) + Chr(13) End With Waiting for ur suggestions. Thank you. October 17th, 2005,04:53 AM #4 Bill Crawley View Profile View Forum Posts Visit Homepage Senior Member Join Date Aug 2000 Location Essex, Uk Posts 1,214 Re: Run-time error '8020' Error reading comm device There's nothing obviously wrong with the way you are handeling the port. However it may be worth check the Device instructions to ensure that you are using the right kind of 'handshaking'. Set comm state fail
device 8020 windows 10 If this is your first visit, be sure to check out the FAQ by clicking the link above. You may have to register before you can post: click http://www.vbforums.com/showthread.php?833591-RESOLVED-error-reading-comm-device-8020-windows-10 the register link above to proceed. To start viewing messages, select the forum that you want to visit from the selection below. Results 1 to 11 of 11 Thread: [RESOLVED] error reading comm device 8020 windows 10 Tweet Thread Tools Show Printable Version Subscribe to this Thread… Display Linear Mode Switch to Hybrid Mode Switch to Threaded Mode Aug 6th, 2016,04:25 PM #1 salsa31 View Profile View Forum time error Posts Thread Starter baila como nunca Join Date Feb 2011 Location Barrio Del pilar madrid spain Posts 4,124 [RESOLVED] error reading comm device 8020 windows 10 hey, i have a caller id modem that recognize incoming calls when i start my program i get a error [error reading comm device 8020] why is this? on windows 7 it works fine no error this is the code i am time error 8020 using Code: Dim iLineNum As Integer 'retrieve last window location Me.Top = GetSetting(App.Title, "Window", "Top", Me.Top) Me.Left = GetSetting(App.Title, "Window", "Left", Me.Left) 'retrieve last port settings Comm1.Settings = GetSetting(App.Title, "Properties", "Settings", Comm1.Settings) Comm1.CommPort = GetSetting(App.Title, "Properties", "3", Comm1.CommPort) Comm1.Handshaking = GetSetting(App.Title, "Properties", "Handshaking", Comm1.Handshaking) bEcho = GetSetting(App.Title, "Properties", "Echo", False) m_stDataPath = GetSetting(App.Title, "Properties", "DataPath", DefDataPath) Connect_Click Code: Public Sub Connect_Click() On Error Resume Next If Not Comm1.PortOpen Then ' Open the comm port if not already open Comm1.PortOpen = True End If Comm1.DTREnable = True Comm1.RTSEnable = True Comm1.RThreshold = 1 ' Generate a receive event on every character received Comm1.InputLen = 1 ' Read the receive buffer 1 char at a time bOK = False bError = False Comm1.Output = vbCr + "ATZ" + vbCr ' Send command to put Identifier in event mode and receive serial number Wait If bOK Then bOK = False bError = False Comm1.Output = "AT+VCID=1" + vbCr 'Turn on caller id events Wait If bError Then Comm1.PortOpen = False ' Close the port and update app UI ElseIf bOK Then End If Else Comm1.DTREnable = False Comm1.RTSEnable = False Comm1.PortOpen = False ' Close the port and update app UI End If End Su