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skywater-pdk: openlane

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22 Mar 2021
@townndisrentia1976:matrix.org@townndisrentia1976:matrix.org left the room.14:47:17
@hsunyoto:matrix.orgHarris banned @townndisrentia1976:matrix.org@townndisrentia1976:matrix.org (spamming).16:00:53
@_slack_skywater-pdk_U016ELL4X4M:matrix.org_slack_skywater-pdk_U016ELL4X4M [efabless/openlane] Issue closed by agorararmard 17:10:31
23 Mar 2021
@_slack_skywater-pdk_U01FYLU6TKP:matrix.orgAnton Blanchard Ahmed Ghazy Amr Gouhar FYI I fixed the issue where tracks (usually metal 5) get created in outer space. I hit it on the first shuttle: https://github.com/The-OpenROAD-Project/OpenROAD/pull/602 00:28:42
@_slack_skywater-pdk_U01FYLU6TKP:matrix.orgAnton Blanchard
In reply to@_slack_skywater-pdk_U01FYLU6TKP:matrix.org
Ahmed Ghazy Amr Gouhar FYI I fixed the issue where tracks (usually metal 5) get created in outer space. I hit it on the first shuttle: https://github.com/The-OpenROAD-Project/OpenROAD/pull/602
Fix just went upstream
00:29:18
24 Mar 2021
@_slack_skywater-pdk_U016HSAH6AE:matrix.orgPhilipp Gühring I forgot to add the link: https://github.com/lnis-uofu/LSOracle 00:30:47
@_slack_skywater-pdk_U0172QZ342D:matrix.orgmatt venn I'm looking at the latest openlane v0.9 and develop of caravel. Aim is to build user project wrapper with the default user project 10:40:12
@_slack_skywater-pdk_U0172QZ342D:matrix.orgmatt vennimage.png
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10:40:47
@_slack_skywater-pdk_U0172QZ342D:matrix.orgmatt venn I have to update the makefile to prevent use of rc6: 10:40:47
@_slack_skywater-pdk_U0172QZ342D:matrix.orgmatt venn Then I run make user_project_wrapper from the openlane directory inside caravel 10:41:04
@_slack_skywater-pdk_U0172QZ342D:matrix.orgmatt venn After about 10 minutes of printed warnings like this: 10:41:14
@_slack_skywater-pdk_U0172QZ342D:matrix.orgmatt venn [WARNING PSM-0030] Vsrc location at (-1399901.776um, -1914116.416um) and size =10.000um, is not located on a power stripe. Moving to closest stripe at (0.000um, 10.880um) 10:41:28
@_slack_skywater-pdk_U0172QZ342D:matrix.orgmatt venn It finally fails with this message: 10:41:34
@_slack_skywater-pdk_U0172QZ342D:matrix.orgmatt vennimage.png
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10:41:49
@_slack_skywater-pdk_U0172QZ342D:matrix.orgmatt venn Is anyone else testing the latest openlane + caravel? Again, this is current develop on caravel and v0.9 openlane 10:42:16
@_slack_skywater-pdk_U016Y9FMA2Y:matrix.orgWajeh ul hasanimage.png
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11:04:05
@_slack_skywater-pdk_U016Y9FMA2Y:matrix.orgWajeh ul hasan Amr Gouhar Ahmed Ghazy I was running the flow on OpenLane v0.9, the powered netlist excludes the wires declared for some reason. 11:04:05
@_slack_skywater-pdk_U01634FSETZ:matrix.orgAmr Gouhar
In reply to@_slack_skywater-pdk_U016Y9FMA2Y:matrix.org
Amr Gouhar Ahmed Ghazy I was running the flow on OpenLane v0.9, the powered netlist excludes the wires declared for some reason.
Wajeh ul hasan: They are time expensive to write and not needed in most cases. You can re-enable it with https://github.com/efabless/openlane/blob/6ac4378a138810cd6f8de34b33cb01b04ce9b0bd/configuration/general.tcl#L22.
13:15:08
@_slack_skywater-pdk_U01634FSETZ:matrix.orgAmr Gouhar
In reply to@_slack_skywater-pdk_U01634FSETZ:matrix.org
Wajeh ul hasan: They are time expensive to write and not needed in most cases. You can re-enable it with https://github.com/efabless/openlane/blob/6ac4378a138810cd6f8de34b33cb01b04ce9b0bd/configuration/general.tcl#L22.
Setting a default nettype as wire in the beginning of the file would be a more efficient solution tho if you're trying to simulate.
13:16:03
@_slack_skywater-pdk_U016Y9FMA2Y:matrix.orgWajeh ul hasan
In reply to@_slack_skywater-pdk_U01634FSETZ:matrix.org
Setting a default nettype as wire in the beginning of the file would be a more efficient solution tho if you're trying to simulate.
Thanks
13:22:19
@_slack_skywater-pdk_U01RSNFAM55:matrix.orgBoris Murmann joined the room.18:00:00
26 Mar 2021
@_slack_skywater-pdk_U01HK25PYCC:matrix.orghamza shabbir joined the room.19:13:10
@_slack_skywater-pdk_U01HK25PYCC:matrix.orghamza shabbir changed their profile picture.19:13:12
28 Mar 2021
@_slack_skywater-pdk_U01C4TQ37MK:matrix.orgVarun Majji can anyone tell me what is the use of tlef files which always get merged with the lef files of standard cells and form merged lef in openlane 06:57:36
@_slack_skywater-pdk_U01Q77CQ525:matrix.orgLofty I'm assuming the "t" is "template" 07:32:14
@_slack_skywater-pdk_U01Q77CQ525:matrix.orgLofty Ah, "technology library exchange format" 07:32:51
29 Mar 2021
@_slack_skywater-pdk_U01Q2AS80H2:matrix.orgSteven Huang changed their display name from StevenHuang to Steven Huang.16:35:08
30 Mar 2021
@_slack_skywater-pdk_U0172QZ342D:matrix.orgmatt venn
In reply to@_slack_skywater-pdk_U0172QZ342D:matrix.org
should have searched before asking - oops
I wrote this up here: https://www.zerotoasiccourse.com/terminology/antenna-report/
11:08:40
@_slack_skywater-pdk_U01S3KU0DFX:matrix.orgKlas Nordmark joined the room.11:45:57
@_slack_skywater-pdk_U01S3KU0DFX:matrix.orgKlas Nordmark Hopefully not bringing up an old question here, but something that strikes me when reading the the docs is how there is a singular CLOCK_PERIOD and CLOCK_NET/PORT variable. Are designs with multiple clocks not supported? 11:51:35

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