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Explorer
Explorer
9,974 Views
Registered: ‎03-10-2015

How to insert a OBUF in vivado's block design?

Hello all,

 

  At the top level I have the following

 

      asig : out std_logic;

 

      asig <= bsig;

 

     ablock_i ablock

     port map (

         ..

        a => bsig;

        ...

    );

 

  Have created an IP for ablock and trying to connect ablock but can't find obuf in the IP catalog to do the connect from bsig to asig. Can you please let me know how can I do this?

 

Best regards,

Fred

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8 Replies
Xilinx Employee
Xilinx Employee
9,967 Views
Registered: ‎09-20-2012

Re: How to insert a OBUF in vivado's block design?

Hi,

You need not connect it to OBUF. Right click on the cell pin and select "make external".

When you run synthesis the tool automatically infers the input and output buffers.

If you want to insert differential buffer then use "utility differential io buffer" ip present in block design.

Thanks,
Deepika.
Thanks,
Deepika.
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Xilinx Employee
Xilinx Employee
9,956 Views
Registered: ‎07-31-2012

Re: How to insert a OBUF in vivado's block design?

Hi,

 

The tool automatically inferrs this but in addition why can't you write the OBUF instance in the top module.

Thanks,
Anirudh

PS: Please MARK this as an answer in case it helped resolve your query.Give kudos in case the post guided you to a solution.
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Xilinx Employee
Xilinx Employee
9,935 Views
Registered: ‎09-20-2012

Re: How to insert a OBUF in vivado's block design?

Hi @fsahebi2014 

 

Did that help?

 

Thanks,

Deepika.

Thanks,
Deepika.
--------------------------------------------------------------------------------------------
Google your question before posting. If someone's post answers your question, mark the post as answer with "Accept as solution". If you see a particularly good and informative post, consider giving it Kudos (the star on the left)
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Explorer
Explorer
9,919 Views
Registered: ‎03-10-2015

Re: How to insert a OBUF in vivado's block design?

Hi Deepika,

 

  Would it be possible to call you and discuss this with you?

 

Regards, Fred

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Xilinx Employee
Xilinx Employee
9,884 Views
Registered: ‎09-20-2012

Re: How to insert a OBUF in vivado's block design?

Hi Fred,

Please post your queries here, we will try to answer them.

In case if you have webcase access feel free to open a webcase.

Thanks,
Deepika.
Thanks,
Deepika.
--------------------------------------------------------------------------------------------
Google your question before posting. If someone's post answers your question, mark the post as answer with "Accept as solution". If you see a particularly good and informative post, consider giving it Kudos (the star on the left)
0 Kudos
Explorer
Explorer
9,858 Views
Registered: ‎03-10-2015

Re: How to insert a OBUF in vivado's block design?

Hi Deepika,

 

  How can I access webcase?

 

Regards, Fred

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Xilinx Employee
Xilinx Employee
9,848 Views
Registered: ‎09-20-2012

Re: How to insert a OBUF in vivado's block design?

Hi,

You can log a webcase at http://www.xilinx.com/support/clearexpress/websupport.htm

Incase if you dont have webcase access you can contact your distributor for help.

Thanks,
Deepika.
Thanks,
Deepika.
--------------------------------------------------------------------------------------------
Google your question before posting. If someone's post answers your question, mark the post as answer with "Accept as solution". If you see a particularly good and informative post, consider giving it Kudos (the star on the left)
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Explorer
Explorer
9,825 Views
Registered: ‎03-10-2015

Re: How to insert a OBUF in vivado's block design?

There is many questions that I have so what's the best way to ask? Can I give you my company's email. It will take a long time to figure it who the software we bought it from becuase the accounting person is on vacation.

 

Regards, Fred

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