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help with altshift_taps problem!!

Altera_Forum
Honored Contributor II
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Hi! 

when i use some ip cores with quartus megawizard plug-in manager,such as lpm_divide, some altshift_taps will automaticly added on my project。the problem is the altshift_taps are implemented with some M9Ks,but they use only a few bits, so i think it is a waste for M9Ks。 what should i do to make the altshift_taps implement with LC elements instead of M9Ks??? can i change some settings of quartus ii software?
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Altera_Forum
Honored Contributor II
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--- Quote Start ---  

Hi! 

when i use some ip cores with quartus megawizard plug-in manager,such as lpm_divide, some altshift_taps will automaticly added on my project。the problem is the altshift_taps are implemented with some M9Ks,but they use only a few bits, so i think it is a waste for M9Ks。 what should i do to make the altshift_taps implement with LC elements instead of M9Ks??? can i change some settings of quartus ii software? 

--- Quote End ---  

 

 

Hi, 

 

I assume you choose the shift register under "Memory Compiler" (shift-register Ram-based). In this case it could be only implemented with the RAM resources of the FPGA. Which kind of RAM's you could use depends on the FPGA type. 

 

If you would like a register implemetation you can try the shift register under "Storage" (LPM_SHIFTREG). 

 

Kind regards 

 

GPK
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