# Constraints File RFSoC 4x2

**URL:** <https://discuss.pynq.io/t/constraints-file-rfsoc-4x2/7327>\
**Category:** Support\
**Created:** [July 26, 2024, 6:57pm UTC](https://discuss.pynq.io/t/constraints-file-rfsoc-4x2/7327 "2024-07-26T18:57:45Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![cguc](https://avatars.discourse-cdn.com/v4/letter/c/cab0a1/32.png) [@cguc](https://discuss.pynq.io/u/cguc)\
**Post date:** [July 26, 2024, 6:57pm UTC](https://discuss.pynq.io/t/constraints-file-rfsoc-4x2/7327/1 "2024-07-26T18:57:45Z")

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Hello,

I was setting up the RFSoC 4x2 in order to use it in Vivado, however I can not find the Constraints File (master.xdc or so) to start designing.

Do someone knows where to find it? Help appreciated!

Cristian.

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**Author:** ![marioruiz](https://sea1.discourse-cdn.com/flex019/user_avatar/discuss.pynq.io/marioruiz/32/2177_2.png) [@marioruiz](https://discuss.pynq.io/u/marioruiz)\
**Post date:** [July 29, 2024, 8:45am UTC](https://discuss.pynq.io/t/constraints-file-rfsoc-4x2/7327/2 "2024-07-29T08:45:39Z")

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Hi @cguc,

Welcome to the PYNQ community.

Scroll down to the bottom of the page and click the Resources tab. [RFSoC 4x2 | Real Digital](https://www.realdigital.org/hardware/rfsoc-4x2)

Mario

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**Author:** ![cguc](https://avatars.discourse-cdn.com/v4/letter/c/cab0a1/32.png) [@cguc](https://discuss.pynq.io/u/cguc)\
**Post date:** [August 18, 2024, 11:03pm UTC](https://discuss.pynq.io/t/constraints-file-rfsoc-4x2/7327/3 "2024-08-18T23:03:06Z")

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I was thinking in other files. But thanks anyway.

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**Author:** ![marioruiz](https://sea1.discourse-cdn.com/flex019/user_avatar/discuss.pynq.io/marioruiz/32/2177_2.png) [@marioruiz](https://discuss.pynq.io/u/marioruiz)\
**Post date:** [August 19, 2024, 1:48pm UTC](https://discuss.pynq.io/t/constraints-file-rfsoc-4x2/7327/4 "2024-08-19T13:48:10Z")

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which other files?

The board files should can also be found on the Vivado Board Store.

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**Author:** ![TomAve](https://sea1.discourse-cdn.com/flex019/user_avatar/discuss.pynq.io/tomave/32/6548_2.png) [@TomAve](https://discuss.pynq.io/u/TomAve)\
**Post date:** [August 29, 2025, 2:06am UTC](https://discuss.pynq.io/t/constraints-file-rfsoc-4x2/7327/5 "2025-08-29T02:06:29Z")

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Hello

I wanted to ask a follow up question for this. The XDC files on the Real Digital website seems to be additional XDC to be implemented for specific hardware (e.g. DDR4, PMOD, ect.). Is there a XDC file that defines all the clocks? I looked through the board files as well but couldn’t find anything that made reference to them. If such a XDC does not exist, are there resources that detail the required input delay for the board clocks?