Chapter
3 VXI-MXI-2
Configuration and Installation
©
National Instruments Corporation
3-15
user-configured half of the EEPROM becomes corrupted in such a way that
the VXI-MXI-2 boots to an unusable state.
The Change Factory Configuration switch (switch 3 of U35) lets you
change the factory-default configuration settings by permitting writes to the
factory settings section of the EEPROM. This switch serves as a safety
measure and should not be needed under normal circumstances. When this
switch is off (its default setting) the factory configuration of the EEPROM
is protected, so any writes to the factory area will be ignored. The factory
area is protected regardless of the setting of switch 4 of U35.
Figure 3-10 shows the configuration settings for EEPROM operation.
The settings of switches 1 and 2 have no effect on EEPROM configuration.
Figure 3-10.
EEPROM Operation
a. Boot from User Configuration (Factory Configuration Protected) (Default)
Restore Factory Configuration
Change Factory Configuration
Automatic MXIbus Termination
Terminate MXIbus
Yes
Yes
No
No
No
No
Yes
Yes
U35
12
34
b. Boot from Factory Configuration (Factory Configuration Protected)
Restore Factory Configuration
Change Factory Configuration
Automatic MXIbus Termination
Terminate MXIbus
Yes
Yes
No
No
No
No
Yes
Yes
U35
12
34
c. Boot from User Configuration (Factory Configuration Unprotected)
Restore Factory Configuration
Change Factory Configuration
Automatic MXIbus Termination
Terminate MXIbus
Yes
Yes
No
No
No
No
Yes
Yes
U35
12
34
d. Boot from Factory Configuration (Factory Configuration Unprotected)
Restore Factory Configuration
Change Factory Configuration
Automatic MXIbus Termination
Terminate MXIbus
Yes
Yes
No
No
No
No
Yes
Yes
U35
12
34