Cal-Poly-RAMP / tapeout-ci-2311

caravel-user repository for November 6, 2023 tapeout
Apache License 2.0
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Capacitance and Fanout Violations #9

Open Peter-Herrmann opened 8 months ago

Peter-Herrmann commented 8 months ago

On successful flows, the following warnings are present:

Warning: : There are max slew violations in the design at the typical corner. Please refer to '../home/prherrma/runners/r0/_work/tapeout-ci-2311/tapeout-ci-2311/openlane/user_project_wrapper/runs/user_project_wrapper/reports/signoff/34-rcx_sta.checks.rpt'.
Warning: : There are max fanout violations in the design at the typical corner. Please refer to '../home/prherrma/runners/r0/_work/tapeout-ci-2311/tapeout-ci-2311/openlane/user_project_wrapper/runs/user_project_wrapper/reports/signoff/34-rcx_sta.checks.rpt'.
Warning: : There are max capacitance violations in the design at the typical corner. Please refer to '../home/prherrma/runners/r0/_work/tapeout-ci-2311/tapeout-ci-2311/openlane/user_project_wrapper/runs/user_project_wrapper/reports/signoff/34-rcx_sta.checks.rpt'.

It is worth noting that these warnings are present on the reference user_proj_wrapper builds as well.

Peter-Herrmann commented 8 months ago

By increasing the target density in 6e4b5dc, the capacitance violations were able to be resolved. There are still slew and fanout violations present, however:

===========================================================================
max slew violation count 1164
max fanout violation count 2238
max cap violation count 0
============================================================================

34-rcx_sta.checks.rpt.txt