Examples

AN2768

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3.3

Playing with CLICK_Window

In cases of double click recognition, the CLICK _Latency + CLICK_Window defines the

maximum distance between two consecutive clicks to be recognized as a double click event.

By fixing the latency to avoid spurious bouncing of the signal, one can play with the

CLICK_Window as with the “double-click speed” settings of the mouse properties on the

PC.

Figure 8 shows an acquisition done with CLICK_Window = 10h (10 ms). With this setting the

two consecutive peaks of acceleration are too far apart and the second one occurs outside

of the Window.

In Figure 9 an acquisition carried out with CLICK_Window = ffh (255 ms) is shown. With this

setting the device correctly generates the double click interrupt after the second acceleration

peak.

Figure 8.

Short Window