Xtium2-CL MX4 User's Manual
Appendix B: Troubleshooting Installation Problems
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Teledyne DALSA Log Viewer
The third step in the verification process is to save in a text file the information collected by the
Log Viewer program. Run the program via the Windows Start Menu shortcut
Start • Programs •
Teledy
ne DALSA • Sapera
LT • Tools • Log Viewer
.
The Log Viewer lists information about the installed Teledyne DALSA drivers. Click on File • Save
and you will be prompted for a text file name to save the Log Viewer contents. Email this text file
to Teledyne DALSA Technical Support when requested or as part of your initial contact email.
On-board Image Memory Requirements for Acquisitions
The Xtium2-CL MX4
by default will allocate the maximum number of buffers that can fit in on-board
memory based on the size of the acquired image before cropping, to a maximum of 65535 buffers.
Note:
Applications can change the default number of on-board frame buffers using
the Sapera LT API.
Usually two buffers will ensure that the acquired video frame is complete and not corrupted in
cases where the image transfer to host system memory may be interrupted and delayed by other
host system processes. That is, there is no interruption to the image acquisition of one buffer by
any delays in transfer of the other buffer (which contains the previously acquired video frame) to
system memory.
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If allocation for the requested number of buffers fails, the driver will reduce the number of
on-board frame buffers requested until they can all fit.
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If there is not enough memory for 2 on-board buffers, the driver will reduce the size such
that it allocates two partial buffers. This mode is dependent on reading out the image data
to the host computer faster than the incoming acquisition.
The maximum number of buffers that can fit in on-board memory can be calculated as follows:
𝑇𝑜𝑡𝑎𝑙 𝑂𝑛 − 𝐵𝑜𝑎𝑟𝑑 𝑚𝑒𝑚𝑜𝑟𝑦
𝐵𝑢𝑓𝑓𝑒𝑟 𝑆𝑖𝑧𝑒 𝑖𝑛 𝐵𝑦𝑡𝑒𝑠 + 256 𝐵𝑦𝑡𝑒𝑠 𝑢𝑠𝑒𝑑 𝑡𝑜 𝑠𝑡𝑜𝑟𝑒 𝑡ℎ𝑒 𝐷𝑀𝐴
Dual Camera Input Configuration
When using the dual camera input configuration, the total on-board memory is divided evenly
between the 2 inputs.
For example, assuming 1GB of on-board memory and acquiring 1024 x 1024 x 8 bit images, the
number of on-board buffers would be:
1𝐺𝐵
(1024 𝑥 1024) + 256
= 1023.75 ≥ 1023 𝑜𝑛 − 𝑏𝑜𝑎𝑟𝑑 𝑏𝑢𝑓𝑓𝑒𝑟𝑠
When running the board in the two Base Camera Link configuration, each input is assigned half of
the on-board memory. In the case where there are 1 GB of on-board memory, each input will be
assigned 512 MB.
