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Compiler/LMK04828BEVM: LMK04828BEVM

Part Number: LMK04828BEVM

Tool/software: TI C/C++ Compiler

I used LMK04828BEVM Board,we are not getting correct output when external clock input was 100MHz to CLKin1. I attached my configuration details and output Screenshots.

Please help me 

Thanks & Regards

Basavakirancase_1.docx

  • Hi Basavakiran,

    Is this thread related to the same question? 

    As I mentioned in the other thread, divide by 1 is an odd divide, which requires duty cycle correction to be enabled; make sure DCLKout#_MUX = 0x01 for "Divider+DCC+HS".

    I would like to avoid duplicating E2E threads if possible, so I will mark this thread as resolved and continue in the other thread. If the linked thread is a separate issue from your issue, you are welcome to continue troubleshooting in this thread.

    Regards,

  • Hi Derek Payne

    when i used divider+DCC+HS then i'm not unable to fix or modifying delay in output. and i'm not gettnig smooth output signals in signal Oscilloscope.

    Thanks & Regards

    Basavakiran

  • Hi Basavakiran,

    If you switch from divider only to divider+DCC+HS without resetting the dividers (that is, without a SYNC event), the state of the duty cycle correction and half-step circuitry will not be correct, so the output behavior may not be as desired. You must first set the mux to use divider+DCC+HS, then generate a SYNC event to reset the divider circuitry. This should allow the divider output to function correctly.

    Regards,

  • Hello Derek Payne,

    you solved my problem, Thank you

    Thanks & Regards

    Basavakiran