-
Introduction to
This section contains information on checking communication
Operation
between the synthesizer, mainframe and the computer. It includes
information on returning the synthesizer to a known operating state
(reset), should programming errors occur or
if
a restart is necessary.
Note
Before the
HP
E1440A can be used, some system configuration
adjustments may need to be made to the module and then it has
to be installed in the mainframe. Details of these tasks are given in
Chapter 2
Configuring the
HP
E1440A.
Programming
The HP El4408 has been designed so that it can be controlled by
an external computer. Its operations are therefore performed by a
series of programmable commands using SCPI. There are no manual
controls.
This section gives only brief general information on how to control
the HP
E1440A using a controller module. For a short form list of
the commands specific to the HP E1440A, see Appendix
D
Command
Quick
Reference.
Programming information in this chapter is restricted to HP
E1440A specifics, and assumes that you are familiar with VXIbus or
VMEbus intrinsics.If you are not familiar with these, then refer to
industry standard publications about the VMEbus and the following
publications:
rn
The "VXIbus System Specification7' published by The VXIbus
Consortium, Inc.
rn
ANSIIIEEE-488.2-1987, "Digital Interface for Programmable
Instrumentation" published by the Institute of Electrical and
Electronic Engineers
A complete syntax list of the HP E1440A programming commands
can be found in Chapter
5
Command Syntax Reference.
Self
Test
Once the mainframe and module have been powered up (see Chapter
2 for instructions on how to check and set the module address),
the synthesizer is ready for use. During power-up, the HP
E1440A
automatically executes an internal check and makes sure it is able to
communicate with the back plane of the VXI mainframe.
Note
The HP E1440A has
a
"Failed" indicator that remains on if the
)46
synthesizer is not able to communicate with the controller.
This self test routine can also be executed on command and therefore
sending the self test command is an easy way to check that you
are correctly addressing the synthesizer. Self test is also useful in
locating intermittent problems which might occur during operation.
Getting
Started
1-3
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