Gw-instek GSP-827 Programming Manual Bedienungsanleitung PDF herunterladen (Seite 18)

End If

Delay 100

Loop Until MSComm1.InBufferCount = 0 Or Tout

ReadCOM = rdBuffer

End Function

'========================== Click “Test” bottom to execute this test =====================================

Private Sub cmdTest_Click()

Dim R As String

Text1.Text = ""

Text1.SelStart = 0

MSComm1.CommPort = 1 'Use PORT 1

MSComm1.Settings = "57600,N,8,1" 'Baud rate 57600 、No parity check、data bit 8、stop bit 1

MSComm1.InputLen = 0 'Read the whole buffer when “input” is in use

MSComm1.PortOpen = True 'Open COM Port

R = SendQuery("*IDN?") 'Query the unit information

Text1.SelText = R & vbCrLf 'Display the response on “text box”

SendCMD "MEAS:FREQ:CEN 1000 MHZ" 'Set Center Frequency at 1000MHz

R = SendQuery("MEAS:FREQ:CEN?") 'Query Center Frequency unit to kHz

Text1.SelText = R & vbCrLf 'Display the center frequency on “text box”

R = SendQuery("MEAS:TRA:READ?") 'Query Trace ADC data

Text1.SelText = R & vbCrLf 'Display the trace data on “text box”

MSComm1.PortOpen = False 'Terminate COM Port

End Sub

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Gw-instek GSP-827 Programming Manual Bedienungsanleitung Seite 18