Hi I'm getting this warning in the pre-check phase...
# caraveli
Ivan Rodriguez
05/27/2021, 4:42 PMHi I'm getting this warning in the pre-check phase
Copy code
WARNING
Consistency Checks Failed+ Reason: Instance user_proj was not connected to any power in /usr/local/bin/proj_16854610-1a5f-46fa-88c3-7eb01ac521a3/verilog/gl/user_project_wrapper.vm
Matt Venn
05/27/2021, 6:58 PMProbably important. When you look at the GDS can you see the power lines connecting to the power lines in your macro?
Matt Venn
05/27/2021, 6:58 PMI have been copy pasting the user proj example config.tcl and module definition for ally projects
i
Ivan Rodriguez
05/27/2021, 7:19 PMI'm not quite sure how to look that, ( I'm pretty new to hardware design). I will check the config.tcl to check that
i
Ivan Rodriguez
05/27/2021, 7:26 PMthanks!!!
m
Matt Venn
05/27/2021, 7:26 PMin 'caravel context' you'll need to add the --caravel argument
Matt Venn
05/27/2021, 7:30 PMimage.png
Matt Venn
05/27/2021, 7:30 PMit's a bit hard to see,
Matt Venn
05/27/2021, 7:31 PMbut the vertical lines are the power stripes of my macro
Matt Venn
05/27/2021, 7:31 PMand the horizontal are part of the pdn of caravel
Matt Venn
05/27/2021, 7:31 PMthe dark blue dots are the vias connecting metal5 caravel pdn to metal4 macro power stripes
Matt Venn
05/27/2021, 7:31 PMso you want to make sure the power is connected
Matt Venn
05/27/2021, 7:32 PMbut if the precheck is failing then you need to fix it
i
Ivan Rodriguez
05/27/2021, 7:32 PMIs not failing, is a warning that launch, is not an error
m
Matt Venn
05/27/2021, 7:33 PMwell I guess you can run it on the efabless website and see if it passes or fails
i
Ivan Rodriguez
05/27/2021, 7:34 PMIs in the efables website
m
Matt Venn
05/27/2021, 7:34 PMYeah, make your application and part of it is running the pre check
i
Ivan Rodriguez
05/27/2021, 7:36 PMI' mean I harden my application and I run the pre check in the efables website, the output is success, but I notice that warning, so I ask if is important or not ( I'm pretty new to this stuff 😅)
m
Matt Venn
05/27/2021, 7:46 PMMe too!
Matt Venn
05/27/2021, 7:46 PM@jeffdi can hopefully give us a definitive answer
i
Ivan Rodriguez
05/27/2021, 7:48 PMThis is power plan using your helpful tool
Ivan Rodriguez
05/27/2021, 7:48 PMthis is only the user proj example
m
Matt Venn
05/27/2021, 7:49 PMShow the User project wrapper zoomed in on your design
Matt Venn
05/27/2021, 7:49 PMCheck the vias like I showed above
i
Ivan Rodriguez
05/27/2021, 7:52 PMIn the user project wrapper I didn't see any vias.
Ivan Rodriguez
05/27/2021, 7:52 PMAll I see is this in all parts of the project
m
Matt Venn
05/27/2021, 7:53 PMThat's the power distribution network pdn
Matt Venn
05/27/2021, 7:53 PMBut where is your macro?
i
Ivan Rodriguez
05/27/2021, 7:54 PMDid you mean this?
m
Matt Venn
05/27/2021, 7:55 PMYes
Matt Venn
05/27/2021, 7:55 PMSo it looks empty to me, with no vertical power stripes, and no connection to the pdn
i
Ivan Rodriguez
05/27/2021, 7:56 PMIf I open the detailed placement I can see this
Ivan Rodriguez
05/27/2021, 7:57 PMimage.png
m
Matt Venn
05/27/2021, 7:58 PMPretty hard to see
i
Ivan Rodriguez
05/27/2021, 7:58 PMIf in the Klayout I change the top view to the user_proj I can see my desing
m
Matt Venn
05/27/2021, 7:58 PMI would spend a bit of time looking at the user project wrapper GDS that comes in the repo
Matt Venn
05/27/2021, 7:58 PMThe example
Matt Venn
05/27/2021, 7:59 PMLook how the pdn works, check the connection, find the vias
Matt Venn
05/27/2021, 7:59 PMThen apply that to your design
Matt Venn
05/27/2021, 7:59 PMUse the caravel user project as a good reference for how things should look
i
Ivan Rodriguez
05/27/2021, 8:00 PMI will do that. But is pretty similar to the user project example ( the interconnection with the wrapper at least)