Hey Everyone. We are trying to design a macro usin...
# caravela
Asma Mohsin
12/02/2024, 11:35 PMHey Everyone. We are trying to design a macro using skywater sram macro inside it. However it doesnot seem to be getting connected to power. Any ideas why? Also the tool is not even failing on IR analysis ( which is strange ). Its instead failing on LVS (edited)
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Mitch Bailey
12/03/2024, 3:19 AM@Asma Mohsin Can you share your
config.jsona
Asma Mohsin
12/03/2024, 7:35 AMm
Mitch Bailey
12/03/2024, 12:34 PM@Asma Mohsin does adding this line change anything?
Copy code
"SYNTH_USE_PG_PINS_DEFINES": "USE_POWER_PINS",a
Asma Mohsin
12/03/2024, 12:40 PMI can try but I think the issue is that we are using sram macro from sky130 pdk and it uses met4 and 3 for pdn. I am trying to do another macro using this sram as sub macro. And pdn layer is also 4 in that
Asma Mohsin
12/03/2024, 12:40 PMNot sure how to connect them
Asma Mohsin
12/03/2024, 12:40 PMOr if it's even possible?
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Mitch Bailey
12/03/2024, 1:09 PMDoes this help?
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Asma Mohsin
12/03/2024, 2:50 PMHey David. Thankyou
Asma Mohsin
12/03/2024, 2:50 PMI tried but the power pins stuff didnt wor. also this document didnt say anything about submacro integration so didnt exactly solve our issue
Asma Mohsin
12/03/2024, 2:51 PMsomeone told us it might not be possible to do pdn for this with a script and ahs to be done manually
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Mitch Bailey
12/03/2024, 10:04 PMSee pages 8 and 9 of the document I shared for the 2 methods of submacro integration. Using power rings on the macros might be one solution.
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Asma Mohsin
12/04/2024, 2:13 PMSure currently trying those.Thankyou soo much
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