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initialization of gpio pin ports of launchpad

Jose Manuel Vazquez Martinez
Prodigy 60 points

Hi,

What's the best way to initializate states or values of the gpio pin ports of my launchpad board? 

thanks!!!

  • 0
    TI__Guru**** 244400 points
    Hello Jose,

    The GPIO's can be configured only when the device has started executing the Flash code. They cannot be pre-init at time of power up. By default at power up all pins are input mode.

    To configure a GPIO to a predetermined value during flash execution is

    GPIOPinTypeGPIOOutput(Base Address of GPIO, GPIO Pin Number from 0-7);
    GPIOPinWrite(Base Address of GPIO, GPIO Pin Number from 0-7, 0); // for 0
    or
    GPIOPinWrite(Base Address of GPIO, GPIO Pin Number from 0-7, GPIO Pin Number from 0-7); // for 1

    Regards
    Amit