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Add vias for new channel routes

This commit is contained in:
Matt Guthaus 2019-08-21 11:33:43 -07:00
parent f281510828
commit b94af3e3fd
1 changed files with 20 additions and 4 deletions
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24
compiler/sram/sram_1bank.py
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@ -226,6 +226,7 @@ class sram_1bank(sram_base):
self.route_col_addr_dff() self.route_col_addr_dff()
self.route_data_dff() self.route_data_dff()
if self.write_size is not None: if self.write_size is not None:
self.route_wmask_dff() self.route_wmask_dff()
@ -361,18 +362,24 @@ class sram_1bank(sram_base):
dff_names = ["dout_{}".format(x) for x in range(self.word_size)] dff_names = ["dout_{}".format(x) for x in range(self.word_size)]
dff_pins = [self.data_dff_insts[port].get_pin(x) for x in dff_names] dff_pins = [self.data_dff_insts[port].get_pin(x) for x in dff_names]
for x in dff_names: for x in dff_names:
offset = self.data_dff_insts[port].get_pin(x).center()
self.add_via_center(layers=("metal1", "via1", "metal2"), self.add_via_center(layers=("metal1", "via1", "metal2"),
offset=self.data_dff_insts[port].get_pin(x).center()) offset=offset)
self.add_via_center(layers=("metal2", "via2", "metal3"), self.add_via_center(layers=("metal2", "via2", "metal3"),
offset=self.data_dff_insts[port].get_pin(x).center()) offset=offset)
self.add_via_center(layers=("metal3", "via3", "metal4"),
offset=offset)
bank_names = ["din{0}_{1}".format(port,x) for x in range(self.word_size)] bank_names = ["din{0}_{1}".format(port,x) for x in range(self.word_size)]
bank_pins = [self.bank_inst.get_pin(x) for x in bank_names] bank_pins = [self.bank_inst.get_pin(x) for x in bank_names]
for x in bank_names: for x in bank_names:
offset = self.bank_inst.get_pin(x).center()
self.add_via_center(layers=("metal1", "via1", "metal2"), self.add_via_center(layers=("metal1", "via1", "metal2"),
offset=self.bank_inst.get_pin(x).bc()) offset=offset)
self.add_via_center(layers=("metal2", "via2", "metal3"), self.add_via_center(layers=("metal2", "via2", "metal3"),
offset=self.bank_inst.get_pin(x).bc()) offset=offset)
self.add_via_center(layers=("metal3", "via3", "metal4"),
offset=offset)
route_map = list(zip(bank_pins, dff_pins)) route_map = list(zip(bank_pins, dff_pins))
self.create_horizontal_channel_route(netlist=route_map, self.create_horizontal_channel_route(netlist=route_map,
@ -390,9 +397,18 @@ class sram_1bank(sram_base):
dff_names = ["dout_{}".format(x) for x in range(self.num_wmasks)] dff_names = ["dout_{}".format(x) for x in range(self.num_wmasks)]
dff_pins = [self.wmask_dff_insts[port].get_pin(x) for x in dff_names] dff_pins = [self.wmask_dff_insts[port].get_pin(x) for x in dff_names]
for x in dff_names:
offset = self.wmask_dff_insts[port].get_pin(x).center()
self.add_via_center(layers=("metal1", "via1", "metal2"),
offset=offset)
bank_names = ["bank_wmask{0}_{1}".format(port, x) for x in range(self.num_wmasks)] bank_names = ["bank_wmask{0}_{1}".format(port, x) for x in range(self.num_wmasks)]
bank_pins = [self.bank_inst.get_pin(x) for x in bank_names] bank_pins = [self.bank_inst.get_pin(x) for x in bank_names]
for x in bank_names:
offset = self.bank_inst.get_pin(x).center()
self.add_via_center(layers=("metal1", "via1", "metal2"),
offset=offset)
route_map = list(zip(bank_pins, dff_pins)) route_map = list(zip(bank_pins, dff_pins))
self.create_horizontal_channel_route(route_map,offset) self.create_horizontal_channel_route(route_map,offset)