BCM91250E
User Manual
01/07/05
B ro a d c o m C o r p o r a t i o n
Page 18
Troubleshooting
Document
91250E-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, output on the serial boot console
may be used to help debug the initialization sequence. When the Cer2 message appears, a cache error has
occurred. This frequently occurs when the BCM1250 is either undercooled or is in a low-voltage situation.
Ensure that the correct voltage and cooling is being provided. For other status/error message descriptions,
refer to the Common Firmware Environment (CFE) Specification document.
2
There is no output coming from the serial boot console. 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. Finally make sure the output is not being routed
to the PromICE console.
R
EPLACEMENT
P
ARTS
Table 14: Replacement Parts
Board
ID
Description
Manufacturer
Manufacturer ID Web Information
F1
BCM1250 2.5V power
5A current limit
Littelfuse
®
154005
http://www.littelfuse.com/data/
Data_Sheets/154.pdf
F2
BCM1250 3.3V power
1A current limit
Littelfuse
®
154001
http://www.littelfuse.com/data/
Data_Sheets/154.pdf
F3
EJTAG connector
0.5A 32V surface
mounted fuse.
Littelfuse
®
434.500
http://www.littelfuse.com/PDFs/
Products/434.pdf
BT1
RTC battery.
Panasonic
BR1225/1HC
http://www.panasonic.com/industrial/
battery/oem/chem/lith/coin1.htm
