Chapter 3
NI-VXI Software Installation and Configuration
© National Instruments Corporation
3-11
VXI-AT2000/NI-VXI MS-DOS Getting Started
Table 3-1. Logical Address Configuration Characteristics (Continued)
Characteristic
Description
Default Value
Shared RAM
Window Base
Indicates the offset in the local RAM above
which the RAM is shared over the VXIbus in
A24 space. If the Address Space selection for
the AT-MXI is A16 only, this field is ignored.
Range = 0 to 15, in increments of 1MB
0 MB
Shared RAM
Window Size
Indicates the size of VXI Shared RAM in the
A24 space. If the Address Space selection for
the AT-MXI is A16 only, this field is ignored.
Range = 8 MB, 4 MB, 2 MB, 1 MB, DISABLE
Note: If the Address Space selection is
A16/A24, you need to select a value other than
DISABLE for this field. You must also ensure
that the Slave DMA channel is set correctly.
DISABLE
Shared Memory Pool
(Windows)
Indicates the size of memory in kilobytes that
is allocated on Windows startup to be used
exclusively by
VXImemAlloc
function calls
from both DOS and Windows NI-VXI
applications. If you do not have Microsoft
Windows installed on your system, or if you
will not be running DOS NI-VXI applications
under Windows, set this field to 0 KB.
Range = 0 to 8192 KB
0 KB
Resource Manager
Delay
Time in seconds that the Resource Manager
waits before accessing the configuration
registers of any other device in the system.
Range = 0 s to 65535 s
5 s
