DRV2667 Embedded Software
2.2
Demo Mode Descriptions
The modes and effects in
are described in the following sections. Use this as a starting point for
creating your own waveforms.
2.2.1
Mode Off – Alert Effects
The effects in Mode Off are basic alert effects that use the DRV2667 waveform generator. The waveform
generator reduces the demand of the host processor by creating the output waveform based on five
parameters set in the DRV2667 register map. This eliminates the need for the host processor to output
waveform samples continuously. The only thing the host processor must do is “trigger” the waveform.
For effects that repeat continuously, simply program the DRV2667 to repeat the waveform and then
“trigger” the waveform; once triggered, the waveform will repeat continuously until stopped.
The following waveforms are generated when buttons B1–B4 are pressed.
Button B1 – Alert 1
Alert 1 is a single waveform that produces a bump or buzz feel.
Figure 3. B1 – Alert 1
Figure 4. B1 – Alert 1 Continuous Repeat
Button B2 – Alert 2
Alert 2 is a sequence of two waveforms that produces a buzz and click waveform.
Figure 5. B2 – Alert 2
Figure 6. B2 - Alert 2 Continuous Repeat
8
DRV2667 Evaluation Module
SLOU323 – June 2013
Copyright © 2013, Texas Instruments Incorporated