User`s guide

Agilent E6432A Microwave Synthesizer User’s Guide 5-17
Applications and Example Programs
Sync In
Sync In
This is an input trigger and its functionality is determined by the mode
used during an HPE6432_RunList function. This input trigger can
come from the hardware front panel, the VXI backplane, a software
function, or it can be disabled. This input trigger can only come from
one source at a time.
HPE6432_SetSyncInput(instrumentHandle, syncInputSource);
syncInputSource Source Description Source of Input Trigger
Sync In From the Sync In connector on the hardware
front panel of the synthesizer.
FRONT_IN_POS = 24 Positive The Sync In trigger is asserted with a
positive edge polarity.
FRONT_IN_NEG = 8 Negative The Sync In trigger is asserted with a
negative edge polarity.
VXI0 = 0
VXI1 = 1
VXI2 = 2
VXI3 = 3
VXI4 = 4
VXI5 = 5
VXI6 = 6
VXI7 = 7
VXI Backplane TTL
Trigger
From any one of the eight-shared VXI
backplane TTL triggers (TTLTRG0 -
TTLTRG7). The VXI backplane TTL triggers
follow the Synchronous Trigger Protocol as
outlined in the VXIbus Specification. This
means that the VXI backplane trigger line
must be asserted low for at least 250 ns.
IN_MANUAL = 9 Manual From a software trigger (Sync In) using
HPE6432_GenerateManualSyncI
nput
.
IN_OFF = 15 Off Sync In triggers are disabled.