HP 8340B Manual page 129

The
software comes already configured for either
of the disc drives listed
above
(provided the
disc drive settings are as shown). If
you wish to use
a
different HP-IB address
for the disc
drive or select
a
different number
of volumes on the
HP 9133H (above configuration
dial
setting selects one volume), you must modify
a
few
lines of code in the
software In order for
the software
to run.
Paragraph
33
provides the details on modifying the software
If
you use
the settings
listed
above, no
modification
is required.
3.3
Modifying Mass Storage and Data Storage Addressing
Six system variables located
in
the overhead program FS—MANAGER, subprogram
Mass_stg_init, are
used to define three addresses (storage locations); one
address for the
test software, one for the
test
result data
files,
and one for the user
generated calibration data
files (described
in
Chapter 6) Each address requires two system variables;
the first
system
variable
is
used for the
directory pointer and
the second for the mass storage
unit specifier,
Table
1
lists the six system variables, what
address
they define, and what type of system
variable they are. Figure
1
provides
a
listing of the subprogram
Mass_stg_lnit
which shows
the current configuration of the system variables and their location- The balance of this
sec¬
tion describes the use of the directory pointer and the mass
storage unit specifier In this
software and should give
some
insight as to what changes would need to be made to the
system variables to
accommodate
different storage
media The descriptions
supplied
assume
that you are familiar with the operation of your disc
drive.
Before making
any changes, you
should read through the directory pointer and mass storage unit specifier
descriptions
In this
section and determine what modifications need to be
made-
When you are ready to perform
the modification, you should then read
PERFORMING THE MODIFICATION
at
the end of
this
section
Table
1.
System Variables
Name
Managersys$
Msus$
Dutdir$
Dut—msus$
Calfactordir$
Cfmsus$
Address Defined
Test Software
Test Software
Test Result Data Files
Test Result Data Files
Calibration Data
Files
Calibration Data Files
System Variable Type
Directory Pointer
Mass Storage Unit
Specifier
Directory Pointer
Mass Storage Unit Specifier
Directory Pointer
Mass Storage
Unit Specifier
DIRECTORY POINTER DESCRIPTION
The following describes the
use of the directory pointer
In
the test software. Although
Manager_sys$ Is referred
to specifically, the description
regarding the usage of the directory
pointer applies to all
three directory pointers.
Manager_sys$
defines the directory pointer for the test software. Since the
HP 9133H
and
9122D
do not use directories for organizing information on the disc, the directory pointer,
Manager_sys$,
is set to the null string
in the program (i.e.,
Manager_sys$="") For
a
disc
drive which uses directories and thus requires the directory pointer
to be
defined,
Manager_sys$
should be changed to
reflect the label of
the directory where the test software
is
stored..
Example: Manager_sys$="/8340TEST/"
or
Manager_sys$="/APPLIC/8340TEST/")
Note that the
slashes required for the directory pointer are included on both ends-
How
to Configure the Software
HP 8340A/B
and
HP
8341A/B