Using the CDS-852 Adapter Code Instrument
Appendix D
GPIB-VXI User Manual
D-2
© National Instruments Corporation
Enter
3
to change the configuration information. The following menu is then displayed:
GPIB-VXI Nonvolatile Configuration Changer
(C) 1989 National Instruments
==================================================
1). Edit pSOS Configuration
2). Edit Default VXI Interrupt Handler Levels
3). Edit Resource Manager A24/A32 Assign Bases
4). Edit Servant Area and DC Starting LA
5). Edit FAILED Device handling mode
6). Edit GPIB Configuration
7). Edit default CI Configuration
8). Edit Resident CI Base Locations
9). Edit CI User Configuration Variables
Q). Quit Editor
Choice (1-9,Q):
Enter
1
to edit pSOS configuration. The following prompt then appears:
------pSOS
Configuration------
Enter Dynamic RAM Region 1 Size (default 0x70000):
Enter <CR> to keep the present value and continue to the next entry:
Enter Maximum Number of Processes (default 0x20):
The following formula is used to calculate the maximum number of processes:
Number of processes = 10h + (# Secondary Address links) + (2* # CI's)
If fewer than six CIs are installed and no other secondary address links exist, the default value of
32 (0x20) is adequate. Increasing the number of processes affects the throughput of the GPIB-
VXI. Enter the number of processes in hexadecimal.
The next prompt is then displayed:
Enter Maximum Number of Exchanges (default 0x20):
The following formula is used to calculate the maximum number of exchanges:
Number of exchanges = 10h + (# CI's)
The default value of 32 (0x20) is adequate even if all 12 CIs are installed. Enter
<CR>
to select
the default value.
The last prompt appears:
Enter Maximum Number of Message Buffers (default 0x180):
