10.
The
lnessage
RESET
to
Power-Up
appears
on
the
last line of
the
display.
11.
Drop
Interrupt
Level:
The
interrupt
level is
dropped
to
zero.
12.
Pre-load Memory:
The
message
LOADING
MEMORY
appears
on
the
last line of
the
display while
the
end
of
memory
is
found by pre-loading
the
RAM
not
currently
in use by
the
Boot
ROM code.
If
a long
test
is
to
be
done,
the
RAM
is
loaded
with
EEEElll116.
If
the
fast
test
is
to
be
done, each
RAM
location is loaded with its own address. When pre-loading is finished,
the
message SELF-TEST
MODE
is
displayed on
the
last line of
the
display.
Then,
a 300 ms
delay is executed
to
catch
refresh failures.
13.
Test
and
Initialize Graphics on
Alpha/Graphics
Card.
If
an
HP
98546A
is
present,
then
it
is
tested
with a byte-wide
RAM
test.
If
the
graphics
test
is passed,
then
the
message
Graphics
is
displayed.
If
the
graphics
test
is
failed,
then
the
lllessage
Graphics
Failed
is displayed
and
the
appropriate
value is sent
to
the
LEDs.
If
there
is
a graphics memory failure, it
is
shown on
the
display as following two lines:
Memory
Failed
at
<Hex-Address>
(W:<Hex-Write-Pattern>,
R:<Hex-Read-Pattern»
Finally, graphics memory
is
cleared.
14.
Test HP-IB:
If
the
processor has
HP-IB
and
it
is
the
system controller
then
the
Boot
ROM
will
test
it.
If
the
HP-IB
hardware
fails
the
test,
then
the
message
HP-IB
Failed
is
displayed
and
the
appropriate
value
is
sent
to
the
LEDs.
If
the
HP-IB
hardware
is
present
and
had
no
failures,
then
HP-IB
is displayed.
15.
Check For
DMA
Presence:
If
the
DMA
card
is present
then
the
message HP98620A
or
HP98620B is displayed. No
testing
of
the
DMA
card
is done.
16.
I/O
Card
Tests:
Select codes 0
through
31
are scanned by
the
Boot
ROM. For each select code
the
following
steps
are taken:
a.
The
appropriate
value
is
sent
to
the
LEDs indicating which select code
is
being
examined.
b.
If
one
of
the
following
cards
is found
at
the
current
select code,
it
will
be
tested
by
the
Boot
ROM:
•
HP
98629 SRM Controller
card
•
HP
98627 Color
Card
•
HP
98624 (T19914 HP-IB)
Card
•
HP
98626 RS-232 Interface
Card
•
HP
98644 RS-232 Interface
Card
88
Boot
Rom Functions
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com
To Next Page
Loading...
