National Instruments VXI-USB User Manual

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© National Instruments Corporation
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C
Advanced Hardware 
Configuration Settings
This appendix describes the alternate hardware configuration settings of the 
VXI-USB. The board is set at the factory for the most commonly used 
configuration. Use this appendix if you want to try a different hardware 
configuration or if you would like more information on a particular setting. 
This information is intended for more advanced users.
The following hardware configuration settings are user configurable.
Firmware recovery
VXIbus CLK10 routing
Trigger input termination
For the configuration switch locations and default settings, see Figure B-1, 
.
Note
Do not attempt an alternate setting unless you are familiar with its purpose. 
In addition, do not reconfigure any switches or jumpers not described in this appendix 
unless directed by National Instruments support.
Firmware Recovery
The VXI-USB has an onboard EEPROM and flash memory that stores 
default hardware behaviors loaded at power-on.
The Firmware Recovery Setting switch (S1) causes the VXI-USB to boot 
from the firmware image stored on the host. This is useful in the event that 
the onboard firmware memory becomes corrupted in such a way that the 
VXI-USB boots to an unusable state.
Figure C-1 shows the configuration settings for firmware recovery 
operation.