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Troubleshooting
Table B-1. Troubleshooting MVME172P4 Boards
B
Condition
II. There is a display
on the terminal,
but input from the
keyboard has no
effect.
III. Debug prompt
172-Bug> does
not appear at
powerup, and the
board does not
autoboot.
IV. Debug prompt
172-Bug>
appears at
powerup, but the
board does not
autoboot.
B-2
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Possible Problem
Try This:
A. The keyboard
Recheck the keyboard connections and power.
may be connected
incorrectly.
B. Board jumpers or
Verify the settings of the board jumpers and configuration
switches may be
switches as described in this manual.
configured
incorrectly.
C. You may have
Press the
invoked flow
If this does not free up the keyboard, type in:
control by
<CTRL>-Q
pressing a
HOLD
or
key, or
PAUSE
by typing:
<CTRL>-S
A. Debugger
1. Disconnect all power from your system.
EPROM/Flash
2. Check that the proper debugger device is installed.
may be missing.
3. Set switch S4 segment 5 to
EPROM instead of the Flash memory.
B. The board may
need to be reset.
4. Reconnect power.
5. Restart the system by "double-button reset": press the
RESET
RESET
6. If the debug prompt appears, go to step IV or step V, as
indicated. If the debug prompt does not appear, go to step
VI.
A. The initial
1. Start the onboard calendar clock and timer. Type:
debugger
set mmddyyhhmm <CR>
environment
where the characters indicate the month, day, year, hour,
parameters may
and minute. The date and time will be displayed.
be set incorrectly.
B. There may be
some fault in the
board hardware.
Caution
(continues>)
or
key again.
HOLD
PAUSE
. This enables use of the
ON
and
switches at the same time; release
ABORT
first, wait seven seconds, then release
Performing the next step (env;d) will
!
change some parameters that may affect
your system's operation.
Computer Group Literature Center Web Site
.
ABORT
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