Debouncer - FLIR GRASSHOPPER 3 Series Technical Reference

6.7

Debouncer

By default, our cameras reject a trigger signal that has a pulse width of less than 16 ticks of the pixel clock. With
the debouncer you can define a debounce value. Once the debouncer is enabled and defined, the camera rejects a
trigger signal with a pulse width less than the defined debounce value.
We recommend you set the debounce value slightly higher than longest expected duration of an invalid signal to
compensate for the quality of the input clock signal.
The debouncer is available on GPIO input pins. For the debouncer to take effect, the associated GPIO pin must be
in Input mode (GPIO Mode 0). The debouncer works in all trigger modes, except trigger mode 3 Skip Frames.
To set the debouncer:
GenICam—Digital Input Output Control
n
2/10/2017
©2013-2017
FLIR Integrated Imaging
Solutions Inc. All rights reserved.
Note: Each GPIO has its own input delay time. The debouncer
time adds additional delay to the signal on the pin.
Figure 6.1: Debouncer Filtering Invalid Signals
Grasshopper
®
3 PGE Technical Reference
6 Input/Output Control
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