Motorola MVME147 Installation And Use Manual page 212

Troubleshooting: Solving Start-up Problems
Condition ...
II. There is a
display on the
terminal, but
D
input from the
keyboard has no
effect.
III. Debug
prompt
147-Bug>
does not appear
at power-up, and
the board does
not auto boot.
D-2
Table D-1. Basic Troubleshooting Steps (Continued)
Possible problem ...
A. The keyboard may
be connected
incorrectly.
B. Board jumpers may
be conÞgured
incorrectly.
C. You may have
invoked ßow control
by pressing a
HOLD
key, or by
PAUSE
typing
<CTRL>-S
A. Debugger EPROM
may be missing.
B. The board may
need to be reset.
Try this ...
Recheck the keyboard and power connections.
Check the board jumpers per Hardware
Preparation in Chapter 2.
Press the or
HOLD
If this does not free up the keyboard, type in
or
<CTRL>-Q
1. Disconnect all power from your system.
2. Check that the proper debugger EPROM is
installed per this manual.
3. Reconnect power.
Performing the next
!
step will change some
parameters that may affect
Caution
your system operation.
4. Restart the system by Òdouble-button resetÓ:
press the and
RESET
same time; release
seconds, then release
5. If the debug prompt appears, go to step IV. If
the debug prompt does not appear, go to
step VI.
key again.
PAUSE
switches at the
ABORT
Þrst, wait Þve
RESET
.
ABORT