B-2
Computer Group Literature Center Web Site
Troubleshooting
B
II. There is a display
on the terminal,
but input from the
keyboard has no
effect.
A. The keyboard
may be connected
incorrectly.
Recheck the keyboard connections and power.
B. Board jumpers or
switches may be
configured
incorrectly.
Verify the settings of the board jumpers and configuration
switches as described in this manual.
C. You may have
invoked flow
control by
pressing a
HOLD
or
PAUSE
key, or
by typing:
<CTRL>-S
Press the
HOLD
or
PAUSE
key again.
If this does not free up the keyboard, type in:
<CTRL>-Q
III. Debug prompt
177-Bug>
does
not appear at
powerup, and the
board does not
autoboot.
A. Debugger
EPROM/Flash
may be missing.
1. Disconnect all power from your system.
2. Check that the proper debugger device is installed.
3. Set J1 segment 5 to
OFF
(remove the jumper). This
enables use of the secondary EPROM.
4. Reconnect power.
5. Restart the system by “double-button reset”: press the
RESET
and
ABORT
switches at the same time; release
RESET
first, wait seven seconds, then release
ABORT
.
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.
B. The board may
need to be reset.
IV. Debug prompt
177-Bug>
appears at
powerup, but the
board does not
autoboot.
A. The initial
debugger
environment
parameters may
be set incorrectly.
1. Start the onboard calendar clock and timer. Type:
set mmddyyhhmm <CR>
where the characters indicate the month, day, year, hour,
and minute. The date and time will be displayed.
!
Caution
Performing the next step (env;d) will
change some parameters that may affect
your system’s operation.
(continues>)
B. There may be
some fault in the
board hardware.
Table B-1. Troubleshooting MVME177P Boards (Continued)
Condition
Possible Problem
Try This:
Summary of Contents for MVME177P
Page 1: ...MVME177P Single Board Computer Installation and Use V177PA IH1 Edition of October 2000 ...
Page 10: ...x ...
Page 12: ...xii ...
Page 14: ...xiv ...
Page 34: ...1 16 Computer Group Literature Center Web Site Hardware Preparation and Installation 1 ...
Page 48: ...2 14 Computer Group Literature Center Web Site Startup and Operation 2 ...
Page 92: ...C 2 Computer Group Literature Center Web Site Network Controller Data C ...
Page 98: ...D 6 Computer Group Literature Center Web Site Disk Tape Controller Data D ...
Page 108: ...Index IN 6 Computer Group Literature Center Web Site I N D E X ...