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PROCESSOR-SDK-J721S2: J721s2

Maheshwar reddy
Intellectual 290 points
Part Number: PROCESSOR-SDK-J721S2

Hi, 

I am trying to read the configuration of the GPIO pin (in/out). How to read the pin direction using SDK function. Which function i need to use for the reading. If the function is not available in the SDK can please provide the function for the same. 

  • +1
    TI__Guru 50403 points

    Hi Maheshwar,

    I am assuming that you are using PSDK RTOS and controlling GPIO from R5F based on your previous posts - please correct me if I am wrong.

    For PSDK RTOS, we do not have a function available for reading pin direction. All available GPIO related functions are located in <PSDK RTOS install location>/pdk_j721s2_08_06_00_31/packages/ti/drv/gpio/GPIO.h. To determine pin direction, one option is to read the GPIO_PinConfig struct that you have defined. GPIO_CFG_OUTPUT and GPIO_CFG_INPUT are also defined in the same GPIO.h file, and doing a bit mask to determine how you set it up should tell if a pin was configured output or input.

    Regards,

    Takuma