User`s guide

Device Driver Handling in Windows NT/2000/98/XP ? 5
2.2 Win2000/XP or Win98 Device Driver
Once Windows 98/2000/XP has started, the Plug and Play function of Windows 98/2000/XP system will find the new
NuDAQ/NuIPC cards. If this is the first time to install NuDAQ/NuIPC cards in your Windows 98/2000/XP system, you
will be informed to install the device driver. Please follow the procedures described in the section Device Installation
of chapter Windows 98/NT/2000/XPin the NuDAQ PCI and NuIPC CompactPCI DAQ Cards Software Installation
Guide to install the device.
Driver Utility
PCIS-LVIEW provides a PCI Configuration Utility (PciUtil). This utility is used to set/change 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. If this size of memory is not
able to get, driver will allocate as much memory as system can provide. 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 PciUtil is installed with PCIS-LVIEW, and located in <InstallDir>\Util directory.
Using PciUtil to set/change the buffer size, please refer to the chapter NuDAQ PCI Configuration Utilityin the
NuDAQ PCI and NuIPC CompactPCI DAQ Cards Software Installation Guide.