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TMS320F280049: Clock system and PLL

Dylan You
Intellectual 2630 points
Part Number: TMS320F280049
Other Parts Discussed in Thread: C2000WARE

Dear Teams,

My customer is using F280049. They are asking where they need to make some changes on PLL setting if they used external 20MHz oscillator crystal?

Thanks!

Dylan

  • 0
    TI__Genius 15385 points

    Hi Dylan,

    They can use C2000Ware Driverlib function to configure PLL using crystal. Sysctl_Setclock() function needs to be used to setup PLL.

    By CLKSRCTL1.OSCCLKSRC value will change the clock to PLL, and then IMULT and ODIV needs to be configured to be in the correct range. I recommend using C2000Ware function to configure PLL.

    Best Regards,

    Nirav