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This commit is contained in:
Jacob Walker
2023-03-30 11:30:50 -07:00
parent ce8197d206
commit f7aed247fd
22 changed files with 1479 additions and 520 deletions
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compiler/modules/rom_poly_tap.py
+18 -9
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@@ -10,10 +10,11 @@ from openram.base import design
from openram.base import vector
from openram import OPTS
from openram.sram_factory import factory
from openram.tech import drc
class rom_poly_tap(design):
def __init__(self, name="", strap_length=0, cell_name=None, prop=None, tx_type="nmos", strap_layer="m1"):
def __init__(self, name="", strap_length=0, cell_name=None, prop=None, tx_type="nmos", strap_layer="m2"):
super().__init__(name, cell_name, prop)
self.strap_layer=strap_layer
self.length = strap_length
@@ -23,7 +24,7 @@ class rom_poly_tap(design):
def create_netlist(self):
#for layout constants
self.dummy = factory.create(module_type="rom_dummy_cell")
self.dummy = factory.create(module_type="rom_base_cell")
self.pmos = factory.create(module_type="ptx", tx_type="pmos")
def create_layout(self):
@@ -31,20 +32,19 @@ class rom_poly_tap(design):
self.place_via()
# if self.tx_type == "pmos":
self.extend_poly()
self.place_ptap()
self.add_boundary()
if self.length != 0:
self.place_strap()
# if self.length != 0:
# self.place_strap()
def add_boundary(self):
contact_width = self.poly_contact.width + 2 * self.contact_x_offset
offset = self.active_space - (contact_width - self.active_enclose_contact - self.active_extend_contact)
print("THINGY {}".format(offset))
self.height = self.dummy.height
self.width = contact_width + self.pitch_offset
print("poly height: {0}, width: {1}".format(self.height, self.width))
super().add_boundary()
def place_via(self):
@@ -61,7 +61,7 @@ class rom_poly_tap(design):
if self.tx_type == "nmos":
contact_y = self.dummy.poly.cy()
contact_y = self.dummy.cell_inst.width * 0.5 - 0.5 * self.contact_width - self.active_enclose_contact
# contact_y = self.dummy.poly.offset.x + (self.poly_width * 0.5)
# self.contact_x_offset = 0
else:
@@ -77,8 +77,6 @@ class rom_poly_tap(design):
self.add_layout_pin_rect_center("via", self.strap_layer, self.contact_offset)
def place_strap(self):
strap_start = vector(self.via.lx() , self.via.cy())
@@ -105,4 +103,15 @@ class rom_poly_tap(design):
self.add_rect("poly", extend_offset, self.contact_x_offset , self.poly_width)
def place_ptap(self):
tap_y = self.via.uy() + drc["{0}_to_{0}".format(self.strap_layer)] * 2
contact_pos = vector(self.via.cx(), tap_y)
self.add_via_center(layers=self.active_stack,
offset=contact_pos,
implant_type="p",
well_type="p")
self.add_power_pin(name="gnd",
loc=contact_pos,
start_layer=self.active_stack[2])