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Visitor bharath_91
Visitor
540 Views
Registered: ‎06-03-2018

[synth 8-3936] found unconnected internal register and it is trimmed from 128 to 8 bits

Hi, 

I'm Have Implemented a standard Encryption Algorithm and I'm stuck with the warning message : 

[synth 8-3936] found unconnected internal register and it is trimmed from 128 to 8 bits.

I Tried ignoring this warning but it has sufficient effect on my overall project. I Have attached the code and would require help in getting rid of this warning message.

 

I have attached the code file and please help me in resolving the issue.

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Moderator
Moderator
493 Views
Registered: ‎07-21-2014

Re: [synth 8-3936] found unconnected internal register and it is trimmed from 128 to 8 bits

@bharath_91

 

Are you seeing any functionality issue after the optimization done by tool?

Also, did you try using DONT_TOUCH attribute on the registers to preserve them?

 

Thanks

Anusheel 

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Visitor bharath_91
Visitor
477 Views
Registered: ‎06-03-2018

Re: [synth 8-3936] found unconnected internal register and it is trimmed from 128 to 8 bits

The gate level simulation also works but I'm using this module for Partial Reconfiguration and I end up adding addition RAM for this unconnected 8 bits.

I did try the attribute specified but it didn't serve the purpose.

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