Texas Instruments DRV2667, User Manual, Page: 12 / 36

DRV2667 Embedded Software
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2.2.4 Mode 2 – FIFO and RAM Effects
The effects in Mode 2 are very similar to the previous modes; however, they do not use the DRV2667
waveform generator. Instead they use either the FIFO streaming mode or the internal RAM. The
advantage of using FIFO or RAM is that the waveforms can be completely arbitrary.
In Figure 17 and Figure 18 , the click and bump were created using FIFO mode.
Figure 17. B1 – Sharp Click Using FIFO Figure 18. B2 – Bump using FIFO
If you choose to use the embedded RAM you can create waveforms like the two-tone robotic click
waveform in
Figure 19 .
Figure 19. B4 – Robotic Click using RAM
12 DRV2667 Evaluation Module SLOU323 – June 2013
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