68K System Monitor

User's Guide

GE Energy Services

RT - RAM Test

Platform

Description

þ CPM þ D20

þ D20 ME

þ D20/200

þ D20/200 ME

þ D25

D20 Base

D20 Base

CCU Base

CCU Base

 

Use this command to perform a non-destructive read-write test of specified RAM memory.

The test may be for the entire RAM or NVRAM regions, or for a specified range of values. You may also select to run the test for a set number of loops, or to loop infinitely.

Note:

If the input range is not on long word boundary, set the range ending

 

address to the first lesser word boundary.

Syntax

Below is usage and syntax information for this command

 

 

 

 

 

 

 

 

 

Command Format

CPM / D20:

rt / (v n)

 

 

 

 

 

CCU / CCUME: rt / (v n gv gn) [beg_addr

 

 

 

 

 

 

 

end_addr [(#loops i)]]

 

 

 

 

 

D25:

 

rt / (v n s) [beg_addr

 

 

 

 

 

 

 

end_addr [(#loops i)]]

 

 

 

 

 

 

 

 

 

 

 

 

Variables

/v

=

volatile (static) RAM

 

 

 

 

 

/n

=

non-volatile RAM (NVRAM)

 

 

 

 

 

/s

=

destructive sequential test

 

 

 

 

 

/gv

=

global volatile (static) RAM

 

 

 

 

 

/gn

=

global non-volatile RAM (NVRAM)

 

 

 

 

 

 

 

 

 

 

 

Parameters

beg_addr =

first address of memory range (in hexadecimal)

 

 

 

 

 

end_addr =

end address of memory range (in hexadecimal)

 

 

 

 

 

#loops =

number of times to execute the finite loop for the

 

 

 

 

 

 

 

specified memory (in decimal) before stopping

 

 

 

 

 

i

=

use infinite loop

 

 

 

 

 

 

 

 

 

 

Example

Type rt /gn 510000 5100b0 25000 and press ENTER.

 

 

 

 

 

Results: This tests the integrity of the global non-volatile

 

 

 

 

 

 

(static) RAM between the memory range of 510000

 

 

 

 

 

 

and 5100b0 repeatedly for 25,000 times.

 

 

 

 

 

 

The system simply returns the prompt when it

 

 

 

 

 

 

successfully completes this instruction.

 

 

 

 

 

 

If the test fails, the system displays an error message

 

 

 

 

 

 

before returning to the prompt.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Continued on next page

 

 

 

 

 

 

 

 

General

 

 

SWM0023-1.00 -2

Full Release

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Image 85
GE 68K System manual RT RAM Test, Type rt /gn 510000 5100b0 25000 and press Enter