• State TI Thinks Resolved
  • Locked Locked
  • Replies 3 replies
  • Answers 1 answer
  • Subscribers 29 subscribers
  • Views 405 views
  • Users 0 members are here
Support feedback
Options
Options
Similar topics

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.

Original question:

DRV8703-Q1EVM: DRV8703-Q1EVM

DRV8703-Q1EVM: DRV8703-Q1EVM

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

HI,

1.i want to use the DRV8703-Q1EVM for bushed motor rotating continuously  with a particular PWM without GUI? is it possible. please  explain how to implement to get continous rotation without GUI.

  • 0
    TI__Guru** 114905 points
    Hi Vasanth,

    This requires either using an external mcu or re-programming the mcu on the EVM.

    The easiest method is to remove R23 through R26 and R29 through R37. This will allow you to connect your own mcu to the J4 header.

    If you want to use the MSP430 on the EVM, this can be done also. It is more complicated because the programming port is J3.

    You can use a MSP-EXP430G2 to re-program the mcu on the EVM.
  • 0 in reply to Rick Duncan
    Intellectual 955 points
    Hi,
    1.if i removed the R23 through R26 and R29 through R37, if i flash code (with some change in the source code.it will work independently without GUI.
    2.my intension is to run motor at a particular speed without gui. Please explain how can i achieve this
  • 0 in reply to vasanth kumar78
    TI__Guru** 114905 points
    Hi Vasanth,

    Running the motor at a particular speed without the GUI will depend on the equipment you have available and the SPI settings you want.

    Assuming you can use all the defaults settings in the SPI and have a pulse generator available:

    1) Remove the resistors previously listed and configure the inputs of the DRV8703-Q1 as desired on the J4 header.
    2) Connect a pulse generator to PH/IN1 or EN/IN2 inputs to control the outputs.

    Assuming you need a mcu to control the SPI, you can:
    1) use the MSP-EXP430G2 to connect to re-program the EVM mcu. There is no need to remove the resistors if you re-program the EVM mcu.
    2) remove the resistors previously listed and connect a mcu to the J4 header to control the DRV8703-Q1.