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Numerous bug fixes, ending in clean full LVS for both caravel and caravan. #76

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Apr 20, 2022
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30 changes: 21 additions & 9 deletions mag/.magicrc
Original file line number Diff line number Diff line change
Expand Up @@ -14,7 +14,24 @@
#
# SPDX-License-Identifier: Apache-2.0

puts stdout "Sourcing design .magicrc for technology $::env(PDK) ..."
# Allow override of PDK path from environment variable PDKPATH. Failing
# that, fall back on definitions of PDK_ROOT and PDK. If either of those
# fails, substitute a default. If PDKPATH has been specified, then get
# PDK_VARIANT from the tail of PDKPATH.

if {[catch {set PDKPATH $env(PDKPATH)}]} {
if {[catch {set PDK_ROOT $env(PDK_ROOT)}]} {
set PDK_ROOT /usr/share/pdk
}
if {[catch {set PDK_VARIANT $env(PDK)}]} {
set PDK_VARIANT sky130A
}
set PDKPATH ${PDK_ROOT}/${PDK_VARIANT}
} else {
set PDK_VARIANT [file tail ${PDKPATH}]
}

puts stdout "Sourcing design .magicrc for technology $PDK_VARIANT ..."

# Put grid on 0.005 pitch. This is important, as some commands don't
# rescale the grid automatically (such as lef read?).
Expand All @@ -27,19 +44,14 @@ if {[lindex $scalefac 1] < 2} {
drc off
drc euclidean on

# Allow override of PDK path from environment variable PDKPATH
if {[catch {set PDKPATH $env(PDKPATH)}]} {
set PDKPATH "$::env(PDK_ROOT)/$::env(PDK)"
}

# loading technology
tech load $PDKPATH/libs.tech/magic/$::env(PDK).tech
tech load $PDKPATH/libs.tech/magic/${PDK_VARIANT}.tech

# load device generator
source $PDKPATH/libs.tech/magic/$::env(PDK).tcl
source $PDKPATH/libs.tech/magic/${PDK_VARIANT}.tcl

# load bind keys (optional)
# source $PDKPATH/libs.tech/magic/$::env(PDK)-BindKeys
# source $PDKPATH/libs.tech/magic/${PDK_VARIANT}-BindKeys

# set units to lambda grid
snap lambda
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