Rigol DS1000D Instrukcja Użytkownika Pobierz pdf (Strona 113)

Programming Guide for DS1000E, DS1000D Series

3-9

For i = 0 To (rSize - 1)

tmpstr = tmpstr + Chr(rcv_buffer(i))

Next i

Read_USB = tmpstr

End Function

5. Dblclick CH1 and add the following codes:

Dim i As Long

Dim sendbuf As String

Dim readbuf As String

rSize = 100

sendbuf = ":CHAN1:DISP?"

'initialize the USB device

i = GetTMCDeviceNum

'send a query command and read the results

Call SendToUSB(sendbuf)

readbuf = Read_USB()

'confirm the light state of corresponding channel according to the Returned

Format

If readbuf = "ON" Then

' send a setting command

sendbuf = ":CHAN1:DISP 0"

Call SendToUSB(sendbuf)

Label1(0).ForeColor = &H808080 'gray

Else

sendbuf = ":CHAN1:DISP 1"

Call SendToUSB(sendbuf)

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Rigol DS1000D Instrukcja Użytkownika Strona 113