• State Resolved
  • Locked Locked
  • Replies 3 replies
  • Answers 1 answer
  • Subscribers 81 subscribers
  • Views 2024 views
  • Users 0 members are here
Support feedback
Options
Options
Related

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.

CCS/LAUNCHXL-F28069M: How to read a GPIO pin

Abdul Rasheed28
Intellectual 480 points
Part Number: LAUNCHXL-F28069M
Other Parts Discussed in Thread: C2000WARE

Tool/software: Code Composer Studio

How can we configure a GPIO pin as input and how to read the state of that pin (High/Low)?

  • 0
    TI__Guru 53895 points

    Have you installed C2000Ware and looked at the examples? Have you read the GPIO chapter of the technical reference manual?

    I couldn't find an example that uses a GPIO as an input, but it essentially is this:

        EALLOW;
    // Configure GPIO0 as an input
    GpioCtrlRegs.GPAMUX1.bit.GPIO0 = 0;
    GpioCtrlRegs.GPADIR.bit.GPIO0 = 0;
    EDIS;

    // Read value on GPIO0 into variable
    uint16_t pinValue;
    pinValue = GpioDataRegs.GPADAT.bit.GPIO0;

    Whitney

  • 0 in reply to Whitney Dewey
    Intellectual 480 points

    Hi

    Thanks for the response. I've tried this and now I'm getting an error as "GpioCtrlRegs not found". What should I do??

  • 0 in reply to Abdul Rasheed28
    TI__Guru 53895 points

    Are you using C2000Ware? Are you setting up your project according to chapter 3 in the F2806x Firmware Development Package User Guide? It will walk you through what files you need in your project and the different compiler settings you'll need to configure to use the bit field structure header files (like the one that includes GpioCtrlRegs).

    The document I mentioned can be found in C2000Ware_x_xx_xx_xx\device_support\f2806x\docs\F2806x_DEV_USER_GUIDE.pdf

    Whitney