22 • Installing X64 Xcelera-CL PX4 X64 Xcelera-CL PX4 User's Manual
of the total system memory with a maximum limit of approximately 100 MB. See the Buffer menu of the
Sapera Grab demo program for information on selecting the type of host buffer memory allocation.
Contiguous Memory for Sapera Messaging
The current value for Sapera messaging determines the total amount of contiguous memory reserved at
boot time for messages allocation. This memory space is used to store arguments when a Sapera function
is called. Increase this value if you are using functions with large arguments, such as arrays and
experience any memory errors.
Troubleshooting Installation Problems
The X64 Xcelera-CL PX4 (and the X64 family of products) has been tested by DALSA in a variety of
computers. Although unlikely, installation problems may occur due to the constant changing nature of
computer equipment and operating systems. This section describes what the user can verify to determine
the problem or the checks to make before contacting DALSA Technical Support. Note that information
provided within this section will be updated with the latest information DALSA can provide for each
manual version released.
If you require help and need to contact DALSA Technical Support, make detailed notes on your
installation and/or test results for our technical support to review. See "
Technical Support" on
page 118
for contact information.
Recovering from a Firmware Update Error
This procedure is required if any failure occurred while updating the X64 Xcelera-CL PX4 firmware on
installation or during a manual firmware upgrade. On the rare occasion the board has corrupted firmware,
any Sapera application such as CamExpert or the grab demo program will not find an installed board to
control.
Possible reasons for firmware loading errors or corruption are:
• Computer system mains power failure or deep brown-out.
• PCI bus or checksum errors.
• PCI bus timeout conditions due to other devices.
• User forcing a partial firmware upload using an invalid firmware source file.
When the X64 Xcelera-CL PX4 firmware is corrupted, executing a manual firmware upload will not
work because the firmware loader can not communicate with the board. In an extreme case, corrupted
firmware may even prevent Windows from booting.
Solution: The user manually forces the board to initialize from write protected firmware designed only to
allow driver firmware uploads. When the firmware upload is complete, the board is then rebooted to
initialize in its normal operational mode.
• Note that this procedure may require removing the X64 Xcelera-CL PX4 board several times
from the computer.
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