BCM91125F
User Manual
02/18/04
B ro a d c o m C o r p o r a t i o n
Page
12
Troubleshooting
Document
91125F-UM100-R
S e c t i o n 5 : Tro u bl e s h o o t i n g
C
ORRECTIVE
P
ROCEDURES
1
When CFE is not able to initialize the system and reach the console prompt, the four-character alphanumeric
LED display may be used to help debug the initialization sequence. When the Cer2 message appears, a cache
error has occurred. This frequently occurs when the BCM1125H is either undercooled or is in a low-voltage
situation. Ensure that the correct voltage and cooling is being provided. For other LED message descriptions,
refer to the
Common Firmware Environment (CFE) Specification document.
2
There is no output coming from the serial boot console, but the four-character LED displays
CFE. Because
CFE uses serial port 0 by default, ensure that a standard 9-pin RS232 null-modem cable connection is being
used. Also ensure that the terminal program is set to a baud rate of 115200, 8-bit, no parity, no flow control.
3
PCI problems may be encountered when placing the BCM91125F board into a PCI slot on a host PC or
workstation. The BCM91125F is hardwired in PCI device mode. Problems may occur if the BCM91125F is
reset, which clears the host-configured PCI registers in the BCM1125H without the host’s knowledge.
If this problem occurs and the PCI interface is being used only for the purpose of powering the BCM91125F,
remove the board from the PCI slot and choose one of the other methods for powering the board. If the host
system needs to be connected to the BCM91125F through the PCI, then the system must reconfigure the
BCM1125H registers after the BCM91125F is reset, which may include rebooting the host system.
R
EPLACEMENT
P
ARTS
Table 11:
Replacement Parts
Board
ID
Description
Manufacturer
Manufacturer ID Web Information
F3
EJTAG connector 0.5A
32V surface mounted
fuse.
Littelfuse
®
434.500
http://www.littelfuse.com/PDFs/
Products/434.pdf
N/A
110–240V~1.6A AC to
5V 6A DC power
supply.
Globtek
®
, Inc.
GT-21097-3005
http://www.globtek.com/datasheets/
pdf/GT(M)21097.pdf
BT1
RTC battery.
Panasonic
BR1225/1HC
http://www.panasonic.com/industrial/
battery/oem/chem/lith/coin1.htm
