Motorola MVME2700 Series Installation And Use Manual page 197

Table C-1. Troubleshooting MVME2700 Boards (Continued)
Condition
III. Debug
prompt
PPC1-
Bug> does
not appear at
powerup,
and the
board does
not autoboot.
IV. Debug
prompt
PPC1-
Bug>
appears at
powerup, but
the board
does not
autoboot.
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Possible
Problem
A. Debugger 1. Disconnect all power from your system.
EPROM/Flas
2. Check that the proper debugger EPROM or
h may be
debugger Flash memory is installed per this
missing
manual.
B. The board 3. Reconnect power.
may need to
4. Restart the system by "double-button reset":
be reset.
press the
same time; release
seconds, then release
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.
A. The initial 1. Start the onboard calendar clock and timer.
debugger Type:
environment set mmddyyhhmm <CR>
parameters where the characters indicate the month, day,
may be set year, hour, and minute. The date and time will
incorrectly. be displayed.
B. There may be
some fault in
the board
hardware.
Caution
(continues>)
Try This:
and switches at the
RESET ABORT
first, wait seven
RESET
.
ABORT
Performing the next step
!
(env;d) will change some
parameters that may affect
your system's operation.
Introduction
C
C-3