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lattice constraints file

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shaiko

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Hello,

What is Lattice's equivalent to Xilinx's UCF file (I/O constraints) ?
 

thanks for the help!

---------- Post added at 18:57 ---------- Previous post was at 18:56 ----------

is it a textual file?
 

It's a text file, but you're better off using the built-in editor. In Diamond, click on 'spreadsheet view' and then select the tab for the type of constraint you want. You can also use 'package view'. They don't call it a constraints editor, but that's what it is.
 
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