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OpenRAM
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Use different LVS libs based on tech and sky130

This commit is contained in:
mrg 2020-06-23 14:53:24 -07:00
parent 031862c749
commit e849a9b973
2 changed files with 19 additions and 17 deletions
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8
compiler/base/hierarchy_design.py
View File

@ -11,7 +11,7 @@ import verify
import debug
import os
from globals import OPTS
import tech
class hierarchy_design(hierarchy_spice.spice, hierarchy_layout.layout):
"""
@ -26,7 +26,11 @@ class hierarchy_design(hierarchy_spice.spice, hierarchy_layout.layout):
# If we have a separate lvs directory, then all the lvs files
# should be in there (all or nothing!)
lvs_dir = OPTS.openram_tech + "lvs_lib/"
try:
lvs_subdir = tech.lvs_lib
except AttributeError:
lvs_subdir = "lvs_lib"
lvs_dir = OPTS.openram_tech + lvs_subdir + "/"
if os.path.exists(lvs_dir):
self.lvs_file = lvs_dir + name + ".sp"
else:

28
compiler/pgates/ptx.py
View File

@ -131,8 +131,8 @@ class ptx(design.design):
# be decided in the layout later.
area_sd = 2.5 * self.poly_width * self.tx_width
perimeter_sd = 2 * self.poly_width + 2 * self.tx_width
if OPTS.tech_name == "sky130":
# sky130 technology is in microns, also needs mult parameter
if OPTS.tech_name == "sky130" and OPTS.lvs_exe[0] == "calibre":
# sky130 simulation cannot use the mult parameter in simulation
(self.tx_width, self.mults) = pgate.bin_width(self.tx_type, self.tx_width)
main_str = "M{{0}} {{1}} {0} m={1} w={2} l={3} ".format(spice[self.tx_type],
self.mults,
@ -152,19 +152,17 @@ class ptx(design.design):
self.spice_device = main_str + area_str
self.spice.append("\n* ptx " + self.spice_device)
# LVS lib is always in SI units
if os.path.exists(OPTS.openram_tech + "lvs_lib"):
if OPTS.tech_name == "sky130":
# sky130 requires mult parameter too
self.lvs_device = "M{{0}} {{1}} {0} m={1} w={2} l={3} mult={1}".format(spice[self.tx_type],
self.mults,
self.tx_width,
drc("minwidth_poly"))
else:
self.lvs_device = "M{{0}} {{1}} {0} m={1} w={2}u l={3}u ".format(spice[self.tx_type],
self.mults,
self.tx_width,
drc("minwidth_poly"))
if OPTS.tech_name == "sky130" and OPTS.lvs_exe[0] == "calibre":
# sky130 requires mult parameter too
self.lvs_device = "M{{0}} {{1}} {0} m={1} w={2} l={3} mult={1}".format(spice[self.tx_type],
self.mults,
self.tx_width,
drc("minwidth_poly"))
else:
self.lvs_device = "M{{0}} {{1}} {0} m={1} w={2}u l={3}u ".format(spice[self.tx_type],
self.mults,
self.tx_width,
drc("minwidth_poly"))
def setup_layout_constants(self):
"""