Series 2600 System SourceMeters Reference Manual
Instrument Control Library 12-21
Return to
2600S-901-01 Rev. A / May 2006
digio.trigger[N].assert
N is a digital I/O trigger line: 1 to 14
Function
Asserts a trigger on one of the digital I/O lines.
Usage
digio.trigger[N].assert()
Remarks
The set pulsewidth determines how long the trigger is asserted.
Details
See “
” in
.
Also see
Example
Asserts trigger on I/O line 2:
digio.trigger[2].assert()
digio.trigger[N].clear
N is a digital I/O trigger line: 1 to 14
Function
Clears a trigger event on a digital I/O line.
Usage
digio.trigger[N].clear()
Remarks
A trigger’s event detector remembers if a trigger event has been detected since the last
digio.trigger[line].wait
call. This function clears a trigger’s event detector and
discards the previous history of the trigger line.
Details
See “
” in
.
Also see
Example
Clears trigger event on I/O line 2:
digio.trigger[2].clear()
digio.trigger[N].mode
N is a digital I/O trigger line: 1 to 14
Attribute
Trigger operation and detection mode.
Usage
tmode = digio.trigger[N].mode
-- Reads trigger mode.
digio.trigger[N].mode = tmode
-- Writes trigger mode.
Set
tmode
to one of the following values:
1
or
digio.TRIG_FALLING
Input: Detects falling edge triggers.
Output: Asserts TTL-low trigger pulse.
2
or
digio.TRIG_RISING
Input: Detects rising edge triggers.
Output: Asserts TTL-high trigger pulse.
3
or
digio.TRIG_EITHER
Input: Detects rising or falling edge triggers.
Output: Asserts a TTL-low trigger pulse.
5
or
digio.TRIG_SYNCHRONOUS
Input: Detects falling edge-triggers, and then
latch and drive them low.
Output: Asserts a TTL-low trigger pulse.
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