blob: 050cc99bcb68d394110548b24542b4498e7f05a5 [file] [log] [blame]
puts stdout "Sourcing design .magicrc for technology sky130 ..."
# Put grid on 0.005 pitch. This is important, as some commands don't
# rescale the grid automatically (such as lef read?).
set scalefac [tech lambda]
if {[lindex $scalefac 1] < 2} {
scalegrid 1 2
}
# drc off
drc euclidean on
# PDK
if { [info exists env(PDK_ROOT)] && $env(PDK_ROOT) ne {} } {
## found variable, set tcl PDK_ROOT var
if {![file isdir $env(PDK_ROOT)]} {
puts stderr "Warning: PDK_ROOT environment variable is set but path not found on the system."
}
set PDK_ROOT $env(PDK_ROOT)
} else {
## not existing or empty.
puts stderr "Warning: PDK_ROOT env. var. not found or empty, trying to find an open_pdks install"
}
## get process variant
if {[info exists env(PDK)]} {
set PDK $env(PDK)
} else {
set PDK sky130B
}
set PDKPATH ${PDK_ROOT}/${PDK}
# loading technology
tech load $PDKPATH/libs.tech/magic/sky130B.tech
# load device generator
source $PDKPATH/libs.tech/magic/sky130B.tcl
# load bind keys (optional)
# source $PDKPATH/libs.tech/magic/current/sky130B-BindKeys
# set units to lambda grid
snap lambda
# set sky130 standard power, ground, and substrate names
set VDD VPWR
set GND VGND
set SUB VSUBS
# Allow override of type of magic library views used, "mag" or "maglef",
# from environment variable MAGTYPE
if {[catch {set MAGTYPE $env(MAGTYPE)}]} {
set MAGTYPE maglef
}
# add path to reference cells
if {[file isdir ${PDKPATH}/libs.ref/${MAGTYPE}]} {
addpath ${PDKPATH}/libs.ref/${MAGTYPE}/sky130_fd_pr
addpath ${PDKPATH}/libs.ref/${MAGTYPE}/sky130_fd_io
addpath ${PDKPATH}/libs.ref/${MAGTYPE}/sky130_fd_sc_hd
addpath ${PDKPATH}/libs.ref/${MAGTYPE}/sky130_fd_sc_hdll
addpath ${PDKPATH}/libs.ref/${MAGTYPE}/sky130_fd_sc_hs
addpath ${PDKPATH}/libs.ref/${MAGTYPE}/sky130_fd_sc_hvl
addpath ${PDKPATH}/libs.ref/${MAGTYPE}/sky130_fd_sc_lp
addpath ${PDKPATH}/libs.ref/${MAGTYPE}/sky130_fd_sc_ls
addpath ${PDKPATH}/libs.ref/${MAGTYPE}/sky130_fd_sc_ms
addpath ${PDKPATH}/libs.ref/${MAGTYPE}/sky130_osu_sc
} else {
addpath ${PDKPATH}/libs.ref/sky130_fd_pr/${MAGTYPE}
addpath ${PDKPATH}/libs.ref/sky130_fd_io/${MAGTYPE}
addpath ${PDKPATH}/libs.ref/sky130_fd_sc_hd/${MAGTYPE}
addpath ${PDKPATH}/libs.ref/sky130_fd_sc_hdll/${MAGTYPE}
addpath ${PDKPATH}/libs.ref/sky130_fd_sc_hs/${MAGTYPE}
addpath ${PDKPATH}/libs.ref/sky130_fd_sc_hvl/${MAGTYPE}
addpath ${PDKPATH}/libs.ref/sky130_fd_sc_lp/${MAGTYPE}
addpath ${PDKPATH}/libs.ref/sky130_fd_sc_ls/${MAGTYPE}
addpath ${PDKPATH}/libs.ref/sky130_fd_sc_ms/${MAGTYPE}
addpath ${PDKPATH}/libs.ref/sky130_osu_sc/${MAGTYPE}
}
# add path to GDS cells
# add path to IP from catalog. This procedure defined in the PDK script.
catch {magic::query_mylib_ip}
# add path to local IP from user design space. Defined in the PDK script.
catch {magic::query_my_projects}
snap user
ext2spice scale off
ext2spice hierarchy on
ext2spice short resistor
add fulgor/fulgor_opamp