User`s guide
trigger
14-106
14trigger
Purpose Software-trigger start of data acquisition for one or more scopes
Syntax MATLAB command line
trigger(scope_object_vector) or scope_object_vector.trigger
Arguments
Description Method for a scope object. If the scope object property TriggerMode has a value
of
'software', this function triggers the scope represented by the scope object
to acquire the number of data points in the scope object property
NumSamples.
Note that only scopes with type
host store data in the properties
scope_object.Time and scope_object.Data.
Examples Set a single scope to software trigger, trigger the acquisition of one set of
samples, and plot data.
sc1 = tg.addscope('host',1) or sc1=addscope(tg,'host',1)
sc1.triggermode = 'software'
tg.start, or start(tg), or +tg
sc1.start
or start(sc1) or +sc1
sc1.trigger
or trigger(sc1)
plot(sc1.time, sc1.data)
sc1.stop or stop(sc1) or -sc1
tg.stop
or stop(tg) or -tg1
Set all scopes to software trigger and trigger to start.
allscopes = tg.getscopes
allscopes.triggermode = 'software'
allscopes.start
or start(allscopes) or +allscopes
allscopes.trigger
or trigger(allscopes)
scope_object_vector
Name of a single scope object, name of a vector of
scope objects, list of scope object names in a vector
form
[scope_object1, scope_object2], or the
target object method
getscope, which returns a
scope_object vector.