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Motorola MVME2400 User Manual

Page 152

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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:
-S

Press the

HOLD

or

PAUSE

key again.

If this does not free up the keyboard, type in:
>-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
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: