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DRV8434S: DRV8434S

Shachar Armon
Prodigy 230 points
Part Number: DRV8434S

Hi there,

Can we set one time the DIR and Step to the motor via the SPI, without real- time refresh the SPI message for the stepping command.

and send "stop" command when we intend to stop the motor or change speed or directions?

The motivation is to reduce the host MCU resources and real- time handling 

BR

Shachar  

  • 0
    TI__Guru 55605 points

    Hello,

    It is not possible.  To take a step, a command must be issued every time.  

    We see customers using a GPIO for the hardware STEP input and use SPI for direction change.  This seems to be the most common to avoid too much SPI traffic for actual stepper motor control.

    Regards,

    Ryan