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Installing Xtium-CLHS PX8
Xtium-CLHS PX8 User's Manual
Open Interface GIOs Reservation [Read/Write]: Use this field to reserve Open Interface
GIOs for use by the acquisition module. By default, boards are shipped with Open Interface
GIOs 1 & 2 reserved for Board Sync 1 & 2.
Click on the ‘Value’ field to open the dialog box show below. Disable any GIO reservations that
are not required. Click the OK button to update the value field.
ECO Number [Read]: Indicates the last Engineering Change Order applied to the board.
Figure 7:
Open Interface GIOs Reservation
Configuring Sapera
Viewing Installed Sapera Servers
The Sapera configuration program (Start • Programs • Teledyne DALSA • Sapera LT •
Sapera Configuration) allows the user to see all available Sapera servers for the installed
Sapera-compatible boards. The System entry represents the system server. It corresponds to the
host machine (your computer) and is the only server that should always be present.
Increasing Contiguous Memory for Sapera Resources
The Contiguous Memory section lets the user specify the total amount of contiguous memory (a
block of physical memory, occupying consecutive addresses) reserved for the resources needed for
Sapera buffers allocation and Sapera messaging. For both items, the Requested value dialog
box shows the ‘CorMem’ driver default memory setting while the Allocated value displays the
amount of contiguous memory allocated successfully. The default values will generally satisfy the
needs of most applications.
The Sapera buffers value determines the total amount of contiguous memory reserved at boot
time for the allocation of dynamic resources used for frame buffer management such as scatter-
gather list, DMA descriptor tables plus other kernel needs. Adjust this value higher if your
application generates any out-of-memory error while allocating host frame buffers or when
connecting the buffers via a transfer object. You can approximate the worst-case scenario amount
of contiguous memory required as follows:
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Calculate the total amount of host memory used for one frame buffer
[number of pixels per line • number of lines • (2 - if buffer is 10/12/14 or 16 bits)].
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Provide 200 bytes per frame buffer for Sapera buffer resources.
