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all route functions except for delay

This commit is contained in:
samuelkcrow 2022-06-23 18:27:39 -07:00
parent 63ea1588c1
commit d7b1368115
1 changed files with 45 additions and 24 deletions
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69
compiler/modules/control_logic_delay.py
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@ -391,7 +391,8 @@ class control_logic_delay(design.design):
self.delay_inst.place(offset, mirror="MX") self.delay_inst.place(offset, mirror="MX")
def route_delay(self): # TODO def route_delay(self): # TODO
pass
'''
out_pos = self.delay_inst.get_pin("out").center() out_pos = self.delay_inst.get_pin("out").center()
# Connect to the rail level with the vdd rail # Connect to the rail level with the vdd rail
# Use gated clock since it is in every type of control logic # Use gated clock since it is in every type of control logic
@ -404,7 +405,7 @@ class control_logic_delay(design.design):
# Input from RBL goes to the delay line for futher delay # Input from RBL goes to the delay line for futher delay
self.copy_layout_pin(self.delay_inst, "in", "rbl_bl") self.copy_layout_pin(self.delay_inst, "in", "rbl_bl")
'''
# glitch{1-3} are internal timing signals based on different in/out # glitch{1-3} are internal timing signals based on different in/out
# points on the delay chain for adjustable start time and duration # points on the delay chain for adjustable start time and duration
def create_glitches(self): def create_glitches(self):
@ -436,12 +437,14 @@ class control_logic_delay(design.design):
self.row_end_inst.append(self.glitch3_nand_inst) self.row_end_inst.append(self.glitch3_nand_inst)
def route_glitches(self): #TODO def route_glitches(self):
glitch1_map = zip(["A"], ["gated_clk_bar"]) glitch2_map = zip(["Z"], ["glitch2"])
self.connect_vertical_bus(wlen_map, self.wl_en_driver_inst, self.input_bus) self.connect_vertical_bus(glitch2_map, self.glitch2_nand_inst, self.input_bus)
self.connect_output(self.wl_en_driver_inst, "Z", "wl_en") glitch3_map = zip(["Z"], ["glitch3"])
self.connect_vertical_bus(glitch3_map, self.glitch3_nand_inst, self.input_bus)
def create_clk_buf_row(self): def create_clk_buf_row(self):
""" Create the multistage and gated clock buffer """ """ Create the multistage and gated clock buffer """
@ -563,10 +566,19 @@ class control_logic_delay(design.design):
self.row_end_inst.append(self.wl_en_driver_inst) self.row_end_inst.append(self.wl_en_driver_inst)
def route_wlen(self): #TODO def route_wlen(self):
wlen_map = zip(["A"], ["gated_clk_bar"]) in_map = zip(["A", "B"], ["cs", "glitch2"])
self.connect_vertical_bus(wlen_map, self.wl_en_driver_inst, self.input_bus) self.connect_vertical_bus(in_map, self.wl_en_unbuf_and_inst, self.input_bus)
out_pin = self.wl_en_unbuf_and_inst.get_pin("Z")
out_pos = out_pin.center()
in_pin = self.p_en_bar_driver_inst.get_pin("A")
in_pos = in_pin.center()
mid1 = vector(in_pos.x, out_pos.y)
self.add_path(out_pin.layer, [out_pos, mid1, in_pos])
self.add_via_stack_center(from_layer=out_pin.layer,
to_layer=in_pin.layer,
offset=in_pin.center())
self.connect_output(self.wl_en_driver_inst, "Z", "wl_en") self.connect_output(self.wl_en_driver_inst, "Z", "wl_en")
def create_pen_row(self): def create_pen_row(self):
@ -582,11 +594,11 @@ class control_logic_delay(design.design):
self.row_end_inst.append(self.p_en_bar_driver_inst) self.row_end_inst.append(self.p_en_bar_driver_inst)
def route_pen(self): #TODO def route_pen(self):
in_map = zip(["A", "B"], ["gated_clk_buf", "rbl_bl_delay"]) in_map = zip(["A", "B"], ["delay1", "delay3"])
self.connect_vertical_bus(in_map, self.p_en_bar_nand_inst, self.input_bus) self.connect_vertical_bus(in_map, self.glitch1_nand_inst, self.input_bus)
out_pin = self.p_en_bar_nand_inst.get_pin("Z") out_pin = self.glitch1_nand_inst.get_pin("Z") # same code here as wl_en, refactor?
out_pos = out_pin.center() out_pos = out_pin.center()
in_pin = self.p_en_bar_driver_inst.get_pin("A") in_pin = self.p_en_bar_driver_inst.get_pin("A")
in_pos = in_pin.center() in_pos = in_pin.center()
@ -599,10 +611,6 @@ class control_logic_delay(design.design):
self.connect_output(self.p_en_bar_driver_inst, "Z", "p_en_bar") self.connect_output(self.p_en_bar_driver_inst, "Z", "p_en_bar")
def create_sen_row(self): def create_sen_row(self):
self.glitch3_bar_inv_inst = self.add_inst(name="inv_glitch3_bar",
mod=self.inv)
self.connect_inst(["glitch3", "glitch3_bar", "vdd", "gnd"])
if self.port_type=="rw": if self.port_type=="rw":
input_name = "we_bar" input_name = "we_bar"
else: else:
@ -615,24 +623,26 @@ class control_logic_delay(design.design):
def place_sen_row(self, row): def place_sen_row(self, row):
x_offset = self.control_x_offset x_offset = self.control_x_offset
x_offset = self.place_util(self.glitch3_bar_inv_inst, x_offset, row)
x_offset = self.place_util(self.s_en_gate_inst, x_offset, row) x_offset = self.place_util(self.s_en_gate_inst, x_offset, row)
self.row_end_inst.append(self.s_en_gate_inst) self.row_end_inst.append(self.s_en_gate_inst)
def route_sen(self): #TODO def route_sen(self):
if self.port_type=="rw": if self.port_type=="rw": # this is repeated many times in here, refactor?
input_name = "we_bar" input_name = "we_bar"
else: else:
input_name = "cs" input_name = "cs"
sen_map = zip(["A", "B", "C"], ["rbl_bl_delay", "gated_clk_bar", input_name]) sen_map = zip(["A", "B", "C"], ["glitch3", "gated_clk_bar", input_name])
self.connect_vertical_bus(sen_map, self.s_en_gate_inst, self.input_bus) self.connect_vertical_bus(sen_map, self.s_en_gate_inst, self.input_bus)
self.connect_output(self.s_en_gate_inst, "Z", "s_en") self.connect_output(self.s_en_gate_inst, "Z", "s_en")
def create_wen_row(self): def create_wen_row(self):
self.glitch3_bar_inv_inst = self.add_inst(name="inv_glitch3_bar",
mod=self.inv)
self.connect_inst(["glitch3", "glitch3_bar", "vdd", "gnd"])
if self.port_type == "rw": if self.port_type == "rw":
input_name = "we" input_name = "we"
@ -646,18 +656,29 @@ class control_logic_delay(design.design):
def place_wen_row(self, row): def place_wen_row(self, row):
x_offset = self.control_x_offset x_offset = self.control_x_offset
x_offset = self.place_util(self.
x_offset = self.place_util(self.w_en_gate_inst, x_offset, row) x_offset = self.place_util(self.w_en_gate_inst, x_offset, row)
self.row_end_inst.append(self.w_en_gate_inst) self.row_end_inst.append(self.w_en_gate_inst)
def route_wen(self): #TODO def route_wen(self): # w_en comes from a 3and but one of the inputs needs to be inverted, not sure if this implementation works.
if self.port_type == "rw": if self.port_type == "rw":
input_name = "we" input_name = "we"
else: else:
input_name = "cs" input_name = "cs"
wen_map = zip(["A", "B", "C"], [input_name, "rbl_bl_delay_bar", "gated_clk_bar"]) wen_map = zip(["A", "B"], [input_name, "glitch2"])
self.connect_vertical_bus(wen_map, self.w_en_gate_inst, self.input_bus) self.connect_vertical_bus(wen_map, self.w_en_gate_inst, self.input_bus) # if there are problems, look here
out_pin = self.glitch3_bar_inv_inst.get_pin("Z")
out_pos = out_pin.center()
in_pin = self.w_en_gate_inst.get_pin("C")
in_pos = in_pin.center()
mid1 = vector(in_pos.x, out_pos.y)
self.add_path(out_pin.layer, [out_pos, mid1, in_pos])
self.add_via_stack_center(from_layer=out_pin.layer,
to_layer=in_pin.layer,
offset=in_pin.center())
self.connect_output(self.w_en_gate_inst, "Z", "w_en") self.connect_output(self.w_en_gate_inst, "Z", "w_en")