User`s guide

PCIS-DASK Utilities ? 47
[PciUtil in Windows 2000]
This utility is used to set/modify the allocated buffer sizes of AI, AO, DI and DO. The allocated buffer sizes of AI, AO, DI,
DO represent the sizes of contiguous Initially Allocated memory for continuous analog input, analog output, digital input,
digital output respectively. Its unit is page KB, i.e. 1024 bytes. Device driver will try to allocate these sizes of memory at
system startup time. The size of initially allocated memory is the maximum memory size that DMA or Interrupt transfer
can be performed. It will induce an unexpected result in that DMA or Interrupt transfer performed exceeds the initially
allocated size.
The “Driver Configuration” window is shown as below.
Using PciUtil to change the buffer allocated settings of one of the PCIS-DASK drivers, select the driver from the Card
Type combo box.
Inside the allocated buffer size fields of AI, AO, DI and DO are the originally set values. Type the value in the box
corresponding to AI, AO, DI, or DO according to the requirement of your applications, and then click “Apply” button.