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MMCM instantiation

zanabonir

Dear Forum

 

how could be possiblee..if possible... to create and connect  and configure a MMCM via VHDL or other code/file, without use the IP CLK WIZARD to add in Block Deisgn ?

Thanks

 

Roberto

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  • 0

    Hi there,

    I would suggest that you use the wizard to create the IP.  From there you will have a set of VHDL that you can manipulate as you wish.  I suggest you continue to use the wizard as there are many options, features, settings that should be changed together and the wizard will take care of that for you. 

    Another option would be to generate multiple configurations that you want, then use a diff tool to compare the files to get ALL of the changes that you will need to make in order to get the various configurations that you are intending to use.

    --Dan

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  • 0

    Hi there,

    I would suggest that you use the wizard to create the IP.  From there you will have a set of VHDL that you can manipulate as you wish.  I suggest you continue to use the wizard as there are many options, features, settings that should be changed together and the wizard will take care of that for you. 

    Another option would be to generate multiple configurations that you want, then use a diff tool to compare the files to get ALL of the changes that you will need to make in order to get the various configurations that you are intending to use.

    --Dan

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  • 0 in reply to drozwood90

    Can you show me a example (without the wizard)....

    If MMCM is to complicated, I'm also curios to know how to instantiate a simple register in FPGA, ...i meand..a specific

    cell in FPGA . Is this possible or Vivado decide all ?

    Or, if you want, I can use the wizard, but I want say to vivado to use  exactly a specific  cell (FF or DSP ...other)  in this phisical position?

    Why seems imortan for me ?

    Because if I look in the implemented design the varios connection, and I dont like one,and i want modify ,I would like

    to be able to modify this.....I know vivado do the best....but we are courios people.

     

    Thanks for reply

    Roberto

    Thanks