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hosemann
Observer
Observer
833 Views
Registered: ‎04-10-2017

XPM_MEMORY warning "[Vivado 12-180] No cells matched 'get_cells ..." during synthesis

Hello,

during synthesis of XPM_MEMORY i get the following warning message:

WARNING: [Vivado 12-180] No cells matched 'get_cells -hier -filter {PRIMITIVE_SUBGROUP==LUTRAM || PRIMITIVE_SUBGROUP==dram || PRIMITIVE_SUBGROUP==uram || PRIMITIVE_SUBGROUP==BRAM}'. [/home/tools/vivado/Vivado/2019.2/data/ip/xpm/xpm_memory/tcl/xpm_memory_xdc.tcl:3]

I know it is a false warning (it is not affecting my design).

I found some other posts related to the warning:

https://forums.xilinx.com/t5/Synthesis/Warnings-and-critical-warnings/m-p/849517/highlight/true#M25774

https://forums.xilinx.com/t5/Design-Entry/Constraining-error-in-XPM-madule/m-p/984553#M20786

As these posts are 2 years old and it is Vivado tool related

Are there any plans to fix this?

 

Thanks

 Thomas

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anusheel
Moderator
Moderator
731 Views
Registered: ‎07-21-2014

@hosemann 

Can you please share the XPM instantiation file which is resulting in this false warning and I will test the RTL in latest internal build to see whether this is already fixed or not. If not, I will be filing a new CR for this issue.

Thanks
Anusheel

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hosemann
Observer
Observer
705 Views
Registered: ‎04-10-2017

Hi Anusheel,

find attached a simplified Vivado project including the synthesis log showing the warning message (i add .txt to make the upload work). It looks like the property PRIMITIVE_SUBGROUP is not jet available when the constraint file read.

 

  Thomas

 

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hosemann
Observer
Observer
566 Views
Registered: ‎04-10-2017

Hello Anusheel,

any news on that topic?

 

  Thomas

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