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Nikhil_Thapa
Explorer
Explorer
241 Views
Registered: ‎05-28-2020

Synthesis and Implementation Out-of-date

Hello everyone,

I am using Vivado 2020.1 to create the block design. Every time I complete the synthesis or implementation, I always get Out-of-date . And whenever I do "Run Implementation or Generate Bitstream" next time, the process always starts from the beginning regardless of Synthesis completion. This has taken lot of time to complete the bitstream generation for a single design. I also did Force up-to-date but did not help. 

Are there other ways to solve this issue? 

 

Thanks and Regards,

 

Edit: My design has vmixer and vframe buffer read IP. These IPs mostly go out-of-date.

 

nikhil@logictronix.com
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2 Replies
watari
Teacher
Teacher
220 Views
Registered: ‎06-16-2013

Hi @Nikhil_Thapa 

 

Which OS are you using Vivado 2020.1 ?

If linux, is working directory on NFS ?

 

I'm not sure. But Vivado estimate update by difference of time stamp.

If ex. minimum time unit of time stamp is different between working directory and system, Vivado recognize that files are updated.

 

So, if you avoid it, you consider time stamp of all files.

 

Best regards,

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bruce_karaffa
Scholar
Scholar
185 Views
Registered: ‎06-21-2017

Are you running any pre-synthesis tcl scripts?  If so, these can throw everything out of date.

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