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DRV2625: Playing additional waveform

Part Number: DRV2625
Other Parts Discussed in Thread: DRV2624

Hello Support team,

I understand that DRV2625 has immersion wave forms inside of ROM. If we want to play the other wave forms instead of immersion, can DRV2625 support it?
If can, please let me know the process how to do that.

Best Regards,
Hirokazu Takahashi

  • Hey Hirokazu,

    To play a waveform of your own design on the DRV2625 you would need to use RTP mode, which enables the device to output a waveform of an constant amplitude based on the RTP_INPUT register value. This register value can be updated through the I2C interface, which allows you to have a waveform saved on your host processor and have it played by updating the RTP_INPUT register via I2C.

    For more details see section 8.6.9.1 under page 31 in the DRV2625 datasheet and RTP_INPUT register description on page 43.

    Alternatively, the DRV2624 is identical to the DRV2625 except it features RAM instead of ROM allowing the user to program their own library on the onboard memory and not require you to use RTP mode.

    Best Regards,

    Carson Allen

  • Hello Carson-san

    Thanks for your support.

    Best Regards,
    Hirokazu Takahashi