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error with stratixIII cell

Altera_Forum
Honored Contributor II
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Hi All 

I was working on a design where i instantiated the stratixIII cell in a smaller entity and compiled the small entity as a top module and the process completed successfully. 

Then i instantiated this small entity in another top entity and compiled the process completed also successfully 

 

Let's sat i have this hierarchy 

 

small_entity inside Top1 and Top1 is inside Top2 

 

small entity compiled successfully 

Top1 also compiled successfully 

but when i compiled Top2 this error appears 

 

Error: cout and shareout ports of atom "\Cell_instantsU1:15:fa" must feed the same atom 

 

Am using QuartusII , StratixIII device 

 

Thanks in advance 

 

Amr
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