Chapter 3
Local Command Set
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National Instruments Corporation
3-83
TrigExtConf
Purpose
Configure the external trigger (GPIO) lines.
Query Syntax
TrigExtConf <extline>, <mode>
where the value of
<extline>
is the trigger line to configure.
and
<mode>
specifies the configuration mode, where
All other values are reserved for future expansion.
Value
Trigger Line
40 to 49
External source/destination (GPIO 0 to 9)
40
Front panel In (connector 1)
41
Front panel Out (connector 2)
42
ECL bypass from front panel
43
EXTCLK
44 to 49
Hardware-dependent GPIOs 4 to 9
Bit
Configuration Modes
0
1 = Feed back any line mapped as input into the cross-point switch
0 = Drive input to external (GPIO) pin
1
1 = Assert input (regardless of feedback)
0 = Leave input unconfigured
2
1 = If assertion selected, assert low
0 = If assertion selected, assert high
3
1 = Invert external input (not feedback)
0 = Pass external input unchanged
