74
•
Appendix B: GPIO Control
Delay
Indicates the number of cycles (also determined by the granularity) that the pulse remains
at a low level before rising to a high level.
Trigger Mode
Indicates how a triggered pulse generator will handle its triggers. The possible settings are:
•
Triggered on rising edge
: Indicates if a triggered pulse generator is triggered on the
rising edge of an input
•
Triggered on high level
: Indicates is a triggered pulse generator is triggered on the
high level of an input
•
Triggered on falling edge
: Indicates if a triggered pulse generator is triggered on the
falling edge of an input
•
Triggered on rising AND falling edges
: Indicates if a triggered pulse generator is
triggered on the rising edge of an input and on the falling edge of an input
•
Triggered on low level
: Indicates if a triggered pulse generator is triggered on the low
level of an input
Pulse Period (ns)
Displays the value of the parameter, in nanoseconds, of a complete delay-width cycle of the
pulse generator. This value is computed every time the delay, width or granularity is
modified and is available regardless of the periodic mode.
Pulse Frequency (Hz)
Displays the frequency of the pulse generator. This value is computed every time the delay,
width or granularity is modified and is available regardless of the periodic mode.
Pulse Generator Timing
Positive Pulse Generated from a Rising Edge Trigger
Trigger
Pulse_Out
pulse_delay
pulse_width
Negative Pulse Generated from a Level High Trigger
Trigger
Pulse_Out
pulse_delay
pulse_width
The software can generate two internal signals using the internal pulse generators. The
behavior of each of these two pulse generators is defined by a delay and a width. As shown
