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adcLevel is used to set the triggering signal threshold when using the ADC trigger
source. This threshold is (full scale ×adclevel/256), where −256 ≤ adclevel ≤ 255. There is
hysteresis around the threshold in order to prevent multiple triggers from a single
threshold crossing.
adcLevelPtr contains the current value of the of the adclevel parameter.
magLevel is used to set the triggering threshold when using the mag trigger source.
The threshold is (+0.3762874 ×maglevel)dB relative to full scale signal, where −349 ≤
maglevel ≤ 19.
magLevelPtr contains the current value of the maglevel parameter.
slope selects the edge of the trigger source on which a trigger occurs.
HPE1437_POSITIVE sets triggering on the positive slope and HPE1437_NEGATIVE
on the negative slope.
slopePtr contains the current value of the of the trigger slope.
gen determines whether a module may generate a trigger. HPE1437_ON enables
triggering. HPE1437_OFF disables triggering. This is useful in multi-module systems
with the same trigger type where you want only certain module(s) to generate a trigger.
genPtr contains the current value of the of the gen parameter.
Reset Values
tType
delay
adcLevel
magLevel −128
slope
gen
Effect on Active
The commands in this group do not abort any measurement in progress.
Measurement
See Also
hpe1437_init, hpe1437_frequency_setup, hpe1437_data_, hpe1437_filter_decimate,
hpe1437_meas_start hpe1437_meas_control, hpe1437_trigger_delay_actual_get
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IMMEDIATE
0
0
POSITIVE
ON
E1437A User's Guide
VXI plug&play Programming Reference
4-63
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