Motorola MVME2400 - Manual (Page 152)

Solving Startup Problems
D-2 Computer Group Literature Center Web Site
D
II. There is a display
on the terminal,
but input from the
keyboard and/or
mouse has no
effect.
A. The keyboard or
mouse may be
connected
incorrectly.
Recheck the keyboard and/or mouse connections and power.
B. Board jumpers
may be configured
incorrectly.
Check the board jumpers per 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
PPC1-Bug> does
not appear at
powerup, and the
board does not
autoboot.
A. Debugger Flash
may be missing
1. Disconnect all power from your system.
2. Check that the proper debugger devices are installedl.
3. Reconnect power.
4. Restart the system by “double-button reset”: press the RST and
ABT switches at the same time; release RST first, wait seven
seconds, then release ABT .
5. 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
PPC1-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 D-1. Troubleshooting MVME240x Modules (Continued)
Condition Possible Problem Try This: