User`s guide

Programming Your Instruments

Example Programs

’ Other options are SQUare, RAMP, PULSe, NOISe, DC, and USER

.WriteString "OUTPut:LOAD 50" ’ Set the load impedance in Ohms

’ (50 Ohms default)

’ May also be INFinity, as when using oscilloscope or DMM

.WriteString "FREQuency 2500" ’ Set the frequency.

.WriteString "VOLTage 1.2" ’ Set the amplitude in Vpp.

’ Also see VOLTage:UNIT

.WriteString "VOLTage:OFFSet 0.4" ’ Set the offset in Volts

’ Voltage may also be set as VOLTage:HIGH and VOLTage:LOW for

’ low level and high level

.WriteString "OUTPut ON" ’ Turn on the instrument output

End With

Exit Sub

MyError:

txtError = Err.Description & vbCrLf

Resume Next

End Sub

Example: Simple Sine Waveform (Visual C++ and IVI-COM)

This example program is intended for use with Microsoft Visual C++ 6.0

and the Agilent IVI-COM drivers. This program shows how to download an

arbitrary waveform using binary data. The program generates a damped

sine wave using 16,000 points.

NOTE

"VISA COM 1.0 Type Library" corresponds to VISACOM.tlb and "Agilent

33220 IVI COM Driver 1.0" corresponds to Agilent33220.DLL.

Use the statement "#import "Agilent33220.dll" no_namespace" to import

the Agilent 33220 IVI-COM Driver.

Create a variable of type IAgilent33220Ptr to hold the reference to the

object. To create the object, use

"Fgen.CreateInstance( __uuidof(Agilent33220) )".