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7.6

fail to communicate with modem

Asked by OwenMania in Global System for Mobile Communications (GSM)

Tags: itegno, mscomm, flush, modem

I have a iTegNo GSM modem connected to my USB port
When i try to talk to it using AT command with MSCOMM, it does not seem to reply with the message I want
the COM port number is 3

The code:

Private Sub Form_Load()
'The Com port for GSM modem is 3
Dim test As String
Dim dummy As String

MSComm1.InputLen = 0
' Flush the input buffer.

'MSComm1.InputLen = 5
MSComm1.RThreshold = 5
MSComm1.CommPort = 3
MSComm1.InBufferCount = 0
MSComm1.PortOpen = True
MSComm1.Output = "AT"

' Wait for "OK" to come back from the modem.
Do

dummy = DoEvents()
' If there is data in the buffer, then read it.
If MSComm1.InBufferCount Then
MsgBox MSComm1.InBufferCount

MsgBox StrConv(MSComm1.Input, vbUnicode)
Exit Do
' Check for "OK".
End If
Loop

MSComm1.InBufferCount = 0
MSComm1.Output = "AT + CMGF = 1" & vbCrLf
MsgBox MSComm1.Input

End Sub
[+][-]02/05/04 09:01 AM, ID: 10282086Accepted Solution

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About this solution

Zone: Global System for Mobile Communications (GSM)
Tags: itegno, mscomm, flush, modem
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Solution Provided By: BigRat
Participating Experts: 1
Solution Grade: A
 
[+][-]02/18/04 02:46 PM, ID: 10397781Author Comment

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