XXDP+ 2.5

From: CLASSICCMP_at_trailing-edge.com <(CLASSICCMP_at_trailing-edge.com)>
Date: Tue Apr 27 10:57:55 1999

>> > CKK FA <xy> 1 11/44 Diagnostic ROM*
>> >My second problem is the first test, I can't find a KKFA*.* test. Is there
>> >another test I can run on the diagnostic ROM?
>>
>> The diagnostic ROM *is* the test :-). This is the "big" bipolar
>> PROM located near the boot PROM's. And the test is executed at startup.

>OK, I'll buy that, BUT why was there a Diagnostic for the Diagnostic ROM at
>one point? It does seem rather redundant though.

I think you're taking the table too literally: the Diagnostic ROM *is*
the Diagnostic ROM test :-). Generically, it's a dirt-simple memory
test which also gives the CPU a bit of a exercise (simple bit manipulation
and looping) in the process. At least some of the Diagnostic ROM's also
do a checksum on themselves (this is actually a requirement for firmware
in some European countries) but I don't know if the 11/44's ROM does this.

>> >CKKKAC0 11-44 KK11B CACHE
>> >
>> >RMI REGISTER (G5179) NOT USED-SKIP HI ORDER BIT ADDRESS TEST
>>
>> The G5179 is the PDP-11/44 Remote Memory Interface (an extremely
>> rare option). You don't have it :-).
>Ah, good, this was the most disturbing of the messages I got.

*Generally*, G-series modules referred to by XXDP+ are modules
with special diagnostic purposes. These G-modules are often simulators or
exercisers, and in many cases were not often found outside of
the manufacturing and repair facilities. Other G-series modules
are the components of low-level formatters and dedicated hardware
test jigs. Many of these modules, according to the hardware indices
I have at hand, were custom-wrapped boards produced in extremely small
(sometimes only 1 or 2) quantities, yet they still have G-numbers.

>Now I've just got to pour through the doc's for the peripherals so I can
>figure out what tests to run on them.

For at least your RL11 and RL02's:

ZRLG?? Controller Test #1
ZRLH?? Controller Test #2
ZRLI?? Drive Test #1
ZRLJ?? Drive Test #2
ZRLK?? Performance Exerciser
ZRLL?? Drive Compatiblity Test
ZRLM?? Bad Sector File Utility

Running the drive tests or performance exerciser with multiple drives
at the same time produces an impressive light show as all the unit lights
blink in both regular and random patterns!

-- 
 Tim Shoppa                        Email: shoppa_at_trailing-edge.com
 Trailing Edge Technology          WWW:   http://www.trailing-edge.com/
 7328 Bradley Blvd		   Voice: 301-767-5917
 Bethesda, MD, USA 20817           Fax:   301-767-5927
Received on Tue Apr 27 1999 - 10:57:55 BST

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