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Adventurer
Adventurer
7,456 Views
Registered: ‎06-16-2014

How to write an advanced Timing constraint?

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How to write an advanced Timing constraint? 

 

I use the word advance because I know the basic of how to constraint in a ucf file. The basic stuff includes assigning pins to corresponding outputs and inputs of top module and configure the clock pin period.  But there are a lot more constraints than just LOC and PERIOD. And for those other constraints, I don't know when or why should I use them and what value should I choose. I use Constraint Guide from Xilinx as a reference. But it's just a reference not a textbook or tutorial type of material. So I would like know how do you guys learn timing constriants and is there any book or blog or tutorial that you recommendded? 

 

Thanks for help. 

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Moderator
Moderator
13,577 Views
Registered: ‎01-16-2013

Re: How to write an advanced Timing constraint?

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Hi,

I refer UG612 http://www.xilinx.com/support/documentation/sw_manuals/xilinx14_2/ug612.pdf for learning timing constraints related to UCF.

This UG you can refer as bible :)

Thanks,
Yash

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Xilinx Employee
Xilinx Employee
7,446 Views
Registered: ‎08-02-2007

Re: How to write an advanced Timing constraint?

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hi,

 

there are a few vidoes.

 

refer http://www.xilinx.com/training/fpga/global-timing-constraints-video.htm

 

this is for timing closure http://www.xilinx.com/training/fpga/timing-closure-video.htm

 

http://www.xilinx.com/training/fpga/achieving-timing-closure-video.htm

 

--hem

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Moderator
Moderator
13,578 Views
Registered: ‎01-16-2013

Re: How to write an advanced Timing constraint?

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Hi,

I refer UG612 http://www.xilinx.com/support/documentation/sw_manuals/xilinx14_2/ug612.pdf for learning timing constraints related to UCF.

This UG you can refer as bible :)

Thanks,
Yash

View solution in original post

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