Replace N with the number of the synchronization line: 1-3
Function The trigger operation and detection mode.
Usage mode = tsplink.trigger[N].mode
tsplink.trigger[N].mode = mode
N The number of the trigger line.
trig_mode The active trigger mode.
mode Selects the current trigger mode.
Choose one the following values for mode:
0 or tsplink.TRIG_BYPASS Allows direct control of the line.
1 or tsplink.TRIG_FALLING Detects falling edge input triggers.
Asserts TTL-low pulse as an output trigger.
2 or tsplink.TRIG_RISING If the programmed state of the line is high, the
tsplink.TRIG_RISING mode behaves similar to
tsplink.TRIG_RISINGA.
If the programmed state of the line is low, the
tsplink.TRIG_RISING mode behaves similar to
tsplink.TRIG_RISINGM.
3 or tsplink.TRIG_EITHER Detects rising or falling edge triggers.
Asserts a TTL-low trigger pulse.
4 or tsplink.TRIG_SYNCHRONOUSA
Detects the falling edge input triggers and
automatically latches and drives the trigger
line low.
Asserting the output trigger releases the latched
line.
5 or tsplink.TRIG_SYNCHRONOUS Detects the falling edge input triggers and
automatically latches and drives the trigger
line low.
Asserts a TTL-low pulse as an output trigger.
6 or tsplink.TRIG_SYNCHRONOUSM
Detects rising edge triggers as an input.
Asserts a low TTL-low pulse for output.
7 or tsplink.TRIG_RISINGA Detects Rising Edge triggers as an input.
Asserts a low TTL-low pulse as an output.
8 or tsplink.TRIG_RISINGM Edge detection as an input is not available.
Generates a TTL-high pulse as an output trigger.
Remarks • You can express the mode as a number (0 through 8) or you can use one of the
pre-defined constants (see "Usage").
• The custom variable mode stores the trigger mode as a numeric value when the attribute
is read.
• The default trigger mode for a line is tsplink.TRIG_BYPASS.
• To control the line state, use the tsplink.TRIG_BYPASS mode with the
tsplink.writebit and the tsplink.writeport commands.
• (Firmware version prior to 1.4.0 only) Use the tsplink.TRIG_SYNCHRONOUS mode for
backward firmware compatibility.
• (Firmware version 1.4.0 and higher) Use tsplink.TRIG_SYNCHRONOUSA or
tsplink.TRIG_SYNCHRONOUSM modes.
• (Firmware version prior to 1.4.0 only) Use the tsplink.TRIG_RISING mode for
backward compatibility.
Details See"TSP-Link Synchronization lines" in Section 10, digio.writebit, and digio.writeport.
Example -- Sets the trigger mode for the synchronization line 3: tsplink.TRIG_RISINGM
tsplink.trigger [3] = 8
2600S-901-01 Rev. C / January 2008 Return to Section Topics 12-113
Series 2600 System SourceMeter® Instruments Reference Manual Section 12: Instrument Control Library
tsplink.trigger[N].mode
• (Firmware version 1.4.0 and higher) Use tsplink.TRIG_RISINGA or
tsplink.TRIG_RISINGM modes.
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