User`s guide

4-218 Agilent E6432A Microwave Synthesizer User’s Guide
HPE6432_SetSyncInput
ViStatus HPE6432_SetSyncInput (ViSession instrumentHandle,
ViUInt16 syncInSource);
Purpose
This function specifies the source of the Sync In trigger.
The source of the Sync In trigger can come from the hardware front
panel, the VXI backplane, a software function, or it can be disabled; it
can only come from one source at a time. Its functionality is determined
by the mode used during a Run List function.
Allowable values:
Factory Preset Value: IN_OFF
FRONT_IN_POS=
24
The Sync In trigger is asserted with a positive edge
polarity.
FRONT_IN_NEG
=8
The Sync In trigger is asserted with a negative edge
polarity.
VXI0=0
The Sync In trigger can come from any one of the eight-shared VXI
backplane TTL triggers (TTLTRG0-TTLTRG7). The VXI backplane
triggers follow the Synchronous Trigger Protocol as outlined in the
VXIbus Specification. This means that the VXI backplane trigger line
must be asserted for at least 250 ns.
VXI1=1
VXI2=2
VXI3=3
VXI4=4
VXI5=5
VXI6=6
VXI7=7
IN_MANUAL=9 The Sync In trigger can come from a software trigger
using the Generate Manual Sync In function.
IN_OFF=15 The Sync In triggers are disabled.