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  1. #1
    Join Date
    Mar 2010

    Problem in receving data from MS Comm Port

    I interface a microcontroller with PC using VB6. as i transfer string from the microcontrller it is desplayed on the VB form. but when i send a float byte array from the microcontller it is showing mismatch error. i am sending a four bytes of float value from the microcontroller to com port. now i am not able to convert that 4 bytes of float value to single or double data in vb.
    Public Function GetByt(Byt As Integer) As Single
    Dim CropL As Single
    'Dim i As Integer
    Dim crop() As Byte
    Dim buf As Byte
    Dim Str As String
    MSComm1.OutBufferCount = 0
    MSComm1.InBufferCount = 0
    MSComm1.Output = "S"
    Do While MSComm1.InBufferCount < Byt
    MSComm1.Output = "R" ' ack to controller that byte is received, send next
    crop() = MSComm1.Input
    CropL = crop()
    GetByt = CSng(CropL)
    MSComm1.Output = "D" 'ACk to controller that all bytes are received,
    End Function
    please suggest what to do..

    Best Regards.

  2. #2
    Join Date
    May 2004
    I suggest you post your question in the VB forum, not the Java forum.

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