Core Updump - Emerson ControlWave EFM 3808 Instruction Manual

ControlWave Express Instruction Manual (CI-ControlWave Express)

5.5 Core Updump

5-16
: The port you select must correlate to the port on which you
Note
placed the loop-back plug in step 1.
Select 115200 or ALL ASYNC as the baud rate (click  to
5.
display all available rates).
Click RUN to start the test. At the completion of the test (which
6.
generally takes about 5 seconds), any failed results appear in the
Status field to the right of the RUN button:
TXD RXD Failure

CTS RTS Failure

Click Return to Menu to display the WINDIAG Main Menu.
7.
In some cases—such as when a ControlWave Express fails for no
apparent reason—you can upload a copy of the contents of SRAM and
SDRAM to a PC for support personnel and service engineers to
evaluate. This upload is called a "core updump."
A core updump may be required if the ControlWave Express
spontaneously enters a watchdog state that affects all system operation.
This occurs when the system crashes as a result of a CPU timeout
(resulting from improper software operation, a firmware glitch, and so
on). In some cases, the watchdog state can recur but you cannot
logically reproduce the conditions.
The CPU's RAM contains "crash blocks," a firmware function provided
specifically for watchdog troubleshooting. You can view and save the
crash blocks by viewing the Crash Block Statistic Web Page (see the
Web_BSI Manual, D5087). On request, you can forward crash block
files to our technical support personnel. If they need additional
information to evaluate the condition, the technical support group may
request a core updump. Once the core updump process generates a file,
you can forward that file to the support personnel for evaluation and
resolution.
Use the following steps to preserve the "failed state" condition at a
system crash and perform a core updump:
Set switch SW2-1 on the CPU/System Controller board to OFF
1.
(Disable Watchdog Timer). If switch SW2-4 is ON, set it to
OFF (Enable Core Updump).
: The factory default setting for switch SW2-4 is OFF.
Note
Wait for the error condition (typically 3F on the status LEDs or
2.
"NOTRUN" on the optional display).
Connect the ControlWave Express's Comm Port 1 to a PC using
3.
a half duplex null modem cable.
Service & Troubleshooting Revised Mar-2011