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what is variation file?

Altera_Forum
Honored Contributor II
‎10-02-2009 07:07 AM
1,134 Views

Hi, guys, 

 

Can anyone tell me what a variation file is? e.g. I read the document crc compiler user guide, inside which it says:  

 

A generator variation file, crcgen.v(hd) for a single channel MegaCore function or crcgen_multichan.v(hd) for a multichannel MegaCore function. 

 

why does it end with .v? isn't that for verilog file? Why do they call it a different name as variation file?  

 

Thanks a lot!
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