• State Resolved
  • Locked Locked
  • Replies 4 replies
  • Answers 1 answer
  • Subscribers 29 subscribers
  • Views 1010 views
  • Users 0 members are here
Support feedback
Options
Options
Related

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

DRV2605: Create own wavefrom apart from the 123 Immersion licensed waveforms

Suraj Giri
Prodigy 40 points
Part Number: DRV2605
Other Parts Discussed in Thread: DRV2604,

Hi Haptics team

I would like to have information on drivers for LRA.


We are building a protoype of a device for haptics using DRV2605 as a driver for LRA. The built-in library already includes predefined haptic waveforms which gives certain vibration effects.

My question is with this motor drvier, is it possible to create separate set of waveforms which has vibration effects other than the ones predefined. I am working with ESP32 board from Espressif Systems.

If you have any information then please let me know. Thank you.

  • 0
    TI__Guru** 109825 points
    Hi Suraj,

    Welcome to e2e.
    DRV2604 is the same as DRV2605, but with a programmable memory where you can store your own effects.
    Haptics Control Console can be used to generate the effects and program the RAM memory in DRV2604.

    Best regards,
    -Ivan Salazar
    Applications Engineer - Low Power Audio & Actuators
  • 0 in reply to Ivan Salazar
    Prodigy 40 points

    Hello Ivan,

    Thank you for your response. I believe DRV2604 is required for the application I am working on, i.e., to create my own effects.

    As I would like to drive multiple LRAs simultaneously, could you please help me out with the circuit. Do I need to use a multiplexer or a port extender to have multiple GPIO ports? As each LRA requires one DRV2604 driver, how will I be able to control multiple LRAs independently?

    PS: I cannot use the evaluation module unfortunately for my application.

  • 0 in reply to Suraj Giri
    TI__Guru** 109825 points
    Hi Suraj,

    If you want to control each driver independently then you would indeed need a mux for I2C lines, as DRV2604 doesn't have address selector.

    Best regards,
    -Ivan Salazar
    Applications Engineer - Low Power Audio & Actuators
  • 0 in reply to Ivan Salazar
    Prodigy 40 points

    Hello,

    I was wondering if something like this would work, or as the drivers have the same address, this would not be feasible? Could you please help me with how the circuit would look like
    ? This might be a silly question and I apologize.

    Thank you.