Agilent Technologies 8935 Series Manual de usuario descargar pdf (Pagina 221)

Chapter 7 221

Memory Cards/Mass Storage

Using RAM

RAM is a section of the Test Set’s internal RAM that has been set aside

for use as a mass storage device. RAM acts much the same as an

external disk drive; that is, program and data files can be stored,

re-stored, erased, and retrieved from the RAM.

The RAM is partitioned into four separate volumes: 0-3. Each volume is

treated as a separate “disk.” The size of each volume can be specified in

256-byte increments.

The four RAM volumes are designated ":MEMORY,0,0" to

":MEMORY,0,3". For example, to catalog the contents of RAM volume 0

from the TESTS (IBASIC Controller) screen, execute the following

command:

Example 7-6 Example

CAT ":MEMORY,0,0"

Volume 0’s contents can be viewed and loaded from the TESTS (IBASIC

Controller) screen, the SOFTWARE MENU screen, the TESTS

(Save/Delete Procedure) screen. Volumes 1, 2, and 3 can only be

accessed from the TESTS (IBASIC Controller) screen.

NOTE

RAM Erasure.

The contents of RAM are easily lost. Volume 0 can be overwritten by the

RAM_MANAGER utility program. Volume 1 can be overwritten by the

COPY_PL utility program. (RAM_MANAGER and COPY_PL are found

in the IB_UTILS program in internal ROM.) The contents of all units

are lost when the SERVICE screen’s RAM Initialize function is

executed. Therefore, RAM should only be used for non-permanent,

short-term storage of program or data files.

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Agilent Technologies 8935 Series Manual de usuario Pagina 221