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TMS320F280049: Question regarding F28004x's Silicon Errata (PLL)

Sheldon He
Expert 8585 points

Part Number: TMS320F280049
Other Parts Discussed in Thread: C2000WARE

Hi expert,

On page 15 of F28004x's Silicon Errata, said, "PLL May Not Lock on the First Lock Attempt". You recommend using SysCtl_setClock() in C2000Ware to set the PLL who will contain the workaround you suggested.

But in function Device_init(void) which reside in device.c, you didn't check the return value of this function. Will this be sufficient for a successful initialization? If not, what you will advise us to do ?

Thanks

Sheldon

  • 0
    TI__Genius 15385 points

    Hi Sheldon,

    Based on the data that we have collected, the function gives sufficient retries to successfully Lock the PLL, so checking for the "return value" is not required. But it is always a good idea to check for the return value to confirm.

    I will check with our SW team to get that added into C2000Ware.

    Regards,

    Nirav