The State Trigger Mode - HP 54501A Programming Reference Manual

The State
Trigger Mode
When the State
Trigger
Mode
is
selected the
TRIGGER:SOURCE
command
is
used to select
the clock
source.
The
syntax
for selecting
the
clock source
is TRIGGER:SOURCE
CHANNEL!
After the clock source
is selected, the correct edge for the clock can be
selected using the
TRIGGER:SLOPE
command which
can
be
set to
NEGATIVE
or
POSITIVE.
Next the
TRIGGER:PATH
command
can be used
with the
TRIGGER:LOGIC
command
to set the three bit logic pattern
to
qualify
the clock trigger. These commands could be sent using the following
syntax
":TRIGGER:PATH CHAN2;:TRIGGER:LOGIC
LOW,
or
":TRIGGER:PATH CHAN2; LOGIC LOW".
The
TRIGGER:CONDITION
command in the State Trigger
Mode
will
set
the
"is/is
not present"
state
using the parameters
TRUE
for
"is
present"
and
FALSE
for
"is
not present."
In
this
mode
a
holdoff value
can
be
set
as
in most other modes.
HP 54501A
Programming
Trigger Subsystem
16-5