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CCS/TM4C129XNCZAD: how to use GPIO pin as clock signal

Chandana KV
Intellectual 740 points
Part Number: TM4C129XNCZAD

Tool/software: Code Composer Studio

Hi,

I am using tm4c129xnczad controller.Here my doubt is i need to use one gpio pin which it should work as clock signal means i need to vary the frequency.So can you please tell me how can i do that

  • 0
    TI__Guru**** 191296 points

    Hi, 

      You can use DIVSCLK pin to output a divided clock based off your selected clock source. Below is the description. You can find more details in the datasheet by searching DIVSCLK. 

    The API to use will be SysCtlClockOutConfig(). See below. Please consult with your device specific datasheet on which GPIO pin the DIVSCLK is connected to.