VB2008 send Hex and Receive Hex (why the numbers 0 was cut? )

[boyguitar1]

Hello Sir

I have sent "C0 00 27 00 01 00 D7 C0" this is Hex number.
I short Tx and Rx pin.
when i press button send i received missing code or not completed.
"C0027010D7C0" <-- this is what recevied it was cut off the number 0

why i get this ?
Please help suggest me too..


Thank you sir..






and below is button send code:

      Dim buffer(8) As Byte

        ' C0 00 27 00 01 00 D7 C0

        buffer(0) = 192
        buffer(1) = 0
        buffer(2) = 39
        buffer(3) = 0
        buffer(4) = 1
        buffer(5) = 0
        buffer(6) = 215
        buffer(7) = 192
        SerialPort1.Write(buffer, 0, 8)
        Timer1.Enabled = True

and this is Timer1 code

        For Me.i = 0 To 254
            BRx(i) = 0
        Next
        receive_data = SerialPort1.BytesToRead
        If receive_data = 0 Then Exit Sub
        If receive_data > 255 Then
            receive_data = 255
        End If
        For Me.j = 1 To receive_data
            BRx(input) = SerialPort1.ReadByte
            txt_receive.Text = txt_receive.Text & Hex(BRx(input))
            input = input + 1
        Next
        input = 0
        Timer1.Enabled = False


        For Me.i = 0 To 254
            BRx(i) = 0
        Next

        Timer1.Interval = 1000
        Timer1.Enabled = True

 

[horace1]

could it be that when printing a byte value of 0 the output does not print leading 0's
for example using printf with C the conversion specification %x would display 0, to display leading 0's one would use %02x which would print 00