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DRV8703-Q1EVM: controlling of forward and reverse direction of Brushed motor

vasanth kumar78
Intellectual 955 points
Part Number: DRV8703-Q1EVM
Other Parts Discussed in Thread: DRV8703-Q1

HI,

actually i am trying to control the Brushed motor either in forward or reverse direction by using evaluation board DRV8703-Q1 EVM.

1.in PH/EN mode, motor is not running ,even though i changed to forward or reverse direction.

2.But in independent mode , motor is running at constant speed even though i varied the duty cycle.

i followed the instruction mentioned in the user manual. Please correct me where i am doing mistakes.

  • 0
    TI__Guru** 114905 points

    Hi Vasanth,

    Would you please provide more details?

    What was the exact sequence used in PH/EN mode, and what are the register settings?

    What was the exact sequence used in Independent mode, and what are the register settings?

    Screen captures would help.

    How is the motor connected?

    Can you provide scope captures of the inputs and outputs of PH/EN and Independent mode?