mirror of https://github.com/VLSIDA/OpenRAM.git
Fix bug for even number of fingers. Add even finger tests.
This commit is contained in:
Matt Guthaus
parent
7ff82a2aed
commit
d4f8d63442
137
compiler/ptx.py
137
compiler/ptx.py
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@ -57,52 +57,6 @@ class ptx(design.design):
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self.add_poly()
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self.add_poly()
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self.add_active_contacts()
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self.add_active_contacts()
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# offset this BEFORE we add the active/poly connections
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#self.offset_all_coordinates()
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def offset_attributes(self, coordinate):
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"""Translates all stored 2d cartesian coordinates within the
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attr dictionary"""
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# FIXME: This is dangerous. I think we should not do this, but explicitly
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# offset the necessary coordinates. It is only used in ptx for now!
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for attr_key in dir(self):
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attr_val = getattr(self,attr_key)
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# skip the list of things as these will be offset separately
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if (attr_key in ['objs','insts','mods','pins','conns','name_map']): continue
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# if is a list
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if isinstance(attr_val, list):
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for i in range(len(attr_val)):
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# each unit in the list is a list coordinates
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if isinstance(attr_val[i], (list,vector)):
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attr_val[i] = vector(attr_val[i] - coordinate)
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# the list itself is a coordinate
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else:
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if len(attr_val)!=2: continue
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for val in attr_val:
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if not isinstance(val, (int, long, float)): continue
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setattr(self,attr_key, vector(attr_val - coordinate))
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break
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# if is a vector coordinate
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if isinstance(attr_val, vector):
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setattr(self, attr_key, vector(attr_val - coordinate))
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# def offset_all_coordinates(self):
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# offset = self.find_lowest_coords()
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# self.offset_attributes(offset)
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# self.translate_all(offset)
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# # We can do this in ptx because we have offset all modules it uses.
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# # Is this really true considering the paths that connect the src/drain?
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# self.height = max(max(obj.offset.y + obj.height for obj in self.objs),
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# max(inst.offset.y + inst.mod.height for inst in self.insts))
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# self.width = max(max(obj.offset.x + obj.width for obj in self.objs),
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# max(inst.offset.x + inst.mod.width for inst in self.insts))
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def create_spice(self):
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def create_spice(self):
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self.spice.append("\n.SUBCKT {0} {1}".format(self.name,
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self.spice.append("\n.SUBCKT {0} {1}".format(self.name,
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" ".join(self.pins)))
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" ".join(self.pins)))
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@ -201,55 +155,6 @@ class ptx(design.design):
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height=drc["minwidth_poly"])
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height=drc["minwidth_poly"])
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def pairwise(self, iterable):
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"""
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Create an iterable set of pairs from a set:
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"s -> (s0,s1), (s1,s2), (s2, s3), ..."
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"""
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from itertools import tee, izip
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a, b = tee(iterable)
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next(b, None)
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return izip(a, b)
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def determine_source_wire(self):
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self.source_positions = []
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source_contact_pos = self.active_contact_positions[0:][::2] # even indexes
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for a, b in self.pairwise(source_contact_pos):
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correct=vector(0.5 * (self.active_contact.width -
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drc["minwidth_metal1"] + drc["minwidth_contact"]),
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0.5 * (self.active_contact.height - drc["minwidth_contact"])
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- drc["metal1_extend_contact"])
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connected=vector(b.x + drc["minwidth_metal1"],
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a.y + self.active_contact.height + drc["metal1_to_metal1"])
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self.source_positions.append(a + correct)
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self.source_positions.append(vector(a.x + correct.x, connected.y))
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self.source_positions.append(vector(b.x + correct.x,
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connected.y + 0.5 * drc["minwidth_metal2"]))
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self.source_positions.append(b + correct)
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return source_positions
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def determine_drain_wire(self, contact_positions):
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drain_positions = []
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drain_contact_pos = contact_positions[1:][::2] # odd indexes
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for c, d in self.pairwise(drain_contact_pos):
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correct = vector(0.5*(self.active_contact.width
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- drc["minwidth_metal1"] + drc["minwidth_contact"]),
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0.5*(self.active_contact.height - drc["minwidth_contact"])
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- drc["metal1_extend_contact"])
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connected = vector(d.x + drc["minwidth_metal1"], c.y - drc["metal1_to_metal1"])
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self.drain_positions.append(vector(c + correct))
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self.drain_positions.append(vector(c.x + correct.x, connected.y))
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self.drain_positions.append(vector(d.x + correct.x,
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connected.y - 0.5 * drc["minwidth_metal1"]))
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self.drain_positions.append(vector(d + correct))
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return drain_positions
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def connect_fingered_active(self, drain_positions, source_positions):
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def connect_fingered_active(self, drain_positions, source_positions):
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"""
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"""
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Connect each contact up/down to a source or drain pin
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Connect each contact up/down to a source or drain pin
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@ -366,8 +271,7 @@ class ptx(design.design):
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source_positions = [self.contact_offset]
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source_positions = [self.contact_offset]
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drain_positions = []
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drain_positions = []
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# For all but the last finger...
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for i in range(self.mults):
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for i in range(self.mults-1):
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if i%2:
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if i%2:
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# It's a source... so offset from previous drain.
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# It's a source... so offset from previous drain.
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source_positions.append(drain_positions[-1] + vector(self.contact_pitch,0))
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source_positions.append(drain_positions[-1] + vector(self.contact_pitch,0))
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@ -375,9 +279,6 @@ class ptx(design.design):
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# It's a drain... so offset from previous source.
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# It's a drain... so offset from previous source.
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drain_positions.append(source_positions[-1] + vector(self.contact_pitch,0))
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drain_positions.append(source_positions[-1] + vector(self.contact_pitch,0))
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# The last one will always be a drain
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drain_positions.append(source_positions[-1] + vector(self.contact_pitch,0))
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return [source_positions,drain_positions]
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return [source_positions,drain_positions]
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def add_active_contacts(self):
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def add_active_contacts(self):
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@ -426,39 +327,3 @@ class ptx(design.design):
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self.connect_fingered_active(drain_positions, source_positions)
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self.connect_fingered_active(drain_positions, source_positions)
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# def remove_drain_connect(self):
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# debug.info(3,"Removing drain on {}".format(self.name))
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# # FIXME: This is horrible exception handling!
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# try:
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# del self.insts[self.drain_connect_index]
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# del self.drain_connect_index
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# self.offset_all_coordinates()
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# # change the name so it is unique
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# self.name = self.name + "_rd"
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# except:
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# pass
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# def remove_source_connect(self):
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# debug.info(3,"Removing source on {}".format(self.name))
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# # FIXME: This is horrible exception handling!
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# try:
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# del self.insts[self.source_connect_index]
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# del self.source_connect_index
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# if isinstance(self.drain_connect_index, int):
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# self.drain_connect_index -= 1
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# self.offset_all_coordinates()
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# # change the name so it is unique
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# self.name = self.name + "_rs"
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# except:
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# pass
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# def remove_poly_connect(self):
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# # FIXME: This is horrible exception handling!
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# try:
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# del self.objs[self.poly_connect_index]
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# self.offset_all_coordinates()
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# # change the name so it is unique
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# self.name = self.name + "_rp"
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# except:
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# pass
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@ -0,0 +1,158 @@
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#!/usr/bin/env python2.7
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"Run a regresion test on a basic parameterized transistors"
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import unittest
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from testutils import header
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import sys,os
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sys.path.append(os.path.join(sys.path[0],".."))
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import globals
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import debug
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import verify
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OPTS = globals.OPTS
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#@unittest.skip("SKIPPING 03_ptx_test")
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class ptx_test(unittest.TestCase):
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def runTest(self):
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globals.init_openram("config_20_{0}".format(OPTS.tech_name))
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# we will manually run lvs/drc
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OPTS.check_lvsdrc = False
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import ptx
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import tech
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debug.info(2, "Checking three fingers NMOS")
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fet = ptx.ptx(width=tech.drc["minwidth_tx"],
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mults=4,
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tx_type="nmos",
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connect_active=True,
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connect_poly=True)
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self.local_check(fet)
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OPTS.check_lvsdrc = True
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globals.end_openram()
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def add_mods(self, fet):
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self.create_contacts()
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self.add_well_extension(fet)
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self.add_wire_extension(fet)
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self.add_well_tiedown(fet)
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self.add_poly_tiedown(fet)
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def create_contacts(self):
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layer_stack = ("active", "contact", "metal1")
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self.well_contact = contact.contact(layer_stack)
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layer_stack = ("poly", "contact", "metal1")
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self.poly_contact = contact.contact(layer_stack)
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def add_well_tiedown(self, fet):
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offset = [fet.active_contact_positions[0][0],
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fet.active_contact_positions[0][1] + fet.well_height]
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fet.add_inst(name="well_tap",
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mod=self.well_contact,
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offset=offset,
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mirror="R0",
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rotate=0)
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fet.well_contact = self.well_contact
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fet.well_tiedown_location = offset
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def add_well_extension(self, fet):
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well_define = {"pmos": "nwell",
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"nmos": "pwell"}
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well_type = well_define[fet.tx_type]
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offset = getattr(fet,"{}_position".format(well_type))
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if tech.info["has_{0}".format(well_type)]:
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fet.add_rect(layerNumber=tech.layer[well_type],
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offset=offset,
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width=fet.well_width,
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height=2 * fet.well_height)
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fet.add_rect(layerNumber=tech.layer["{0}implant".format(fet.tx_type[0])],
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offset=offset,
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width=fet.well_width,
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height=2 * fet.well_height)
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fet.add_rect(layerNumber=tech.layer["vtg"],
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offset=offset,
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width=fet.well_width,
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height=2 * fet.well_height)
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well_type = "{0}well".format(fet.tx_type[0])
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offset[1] = offset[1] - 3 * fet.well_height
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if tech.info["has_{0}".format(well_type)]:
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fet.add_rect(layerNumber=tech.layer[well_type],
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offset=offset,
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width=fet.well_width,
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height=3 * fet.well_height)
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fet.add_rect(layerNumber=tech.layer["{0}implant".format(well_define[fet.tx_type][
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0])],
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offset=offset,
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width=fet.well_width,
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height=3 * fet.well_height)
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fet.add_rect(layerNumber=tech.layer["vtg"],
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offset=offset,
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width=fet.well_width,
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height=3 * fet.well_height)
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def add_wire_extension(self, fet):
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xcorrect = (fet.active_contact.width / 2) - (tech.drc["minwidth_metal1"] / 2)
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offset = [fet.active_contact_positions[0][0] + xcorrect,
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fet.active_contact_positions[0][1]]
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fet.add_rect(layerNumber=tech.layer["metal1"],
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offset=offset,
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width=tech.drc["minwidth_metal1"],
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height=fet.well_height)
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offset = [fet.active_contact_positions[-1][0] + xcorrect,
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fet.active_contact_positions[-1][1] - 2 * fet.well_height]
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fet.add_rect(layerNumber=tech.layer["metal1"],
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offset=offset,
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width=tech.drc["minwidth_metal1"],
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height=2 * fet.well_height)
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offset = [fet.poly_positions[-1][0],
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fet.poly_positions[-1][1] - (fet.well_height)]
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fet.add_rect(layerNumber=tech.layer["poly"],
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offset=offset,
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width=tech.drc["minwidth_poly"],
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height=fet.well_height)
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def add_poly_tiedown(self, fet):
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xcorrect = abs(self.poly_contact.upper_layer_vertical_enclosure -
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self.poly_contact.lower_layer_vertical_enclosure)
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offset = [fet.poly_positions[-1][0] - xcorrect,
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fet.poly_positions[-1][1] - (fet.well_height)]
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fet.add_inst(name="poly_contact",
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mod=self.poly_contact,
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offset=offset,
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mirror="R270")
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offset = [fet.active_contact_positions[-1][0], fet.active_contact_positions
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[-1][1] - 2 * fet.well_height - self.well_contact.height]
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fet.poly_tiedown_location = offset
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fet.add_inst(name="n_tiedown",
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mod=self.well_contact,
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offset=offset)
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tech.ptx_port.add_custom_layer(fet)
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def local_check(self, fet):
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tempspice = OPTS.openram_temp + "temp.sp"
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tempgds = OPTS.openram_temp + "temp.gds"
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fet.sp_write(tempspice)
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fet.gds_write(tempgds)
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self.assertFalse(verify.run_drc(fet.name, tempgds))
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os.remove(tempspice)
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os.remove(tempgds)
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# instantiate a copy of the class to actually run the test
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if __name__ == "__main__":
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(OPTS, args) = globals.parse_args()
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del sys.argv[1:]
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header(__file__, OPTS.tech_name)
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unittest.main()
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@ -0,0 +1,158 @@
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#!/usr/bin/env python2.7
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"Run a regresion test on a basic parameterized transistors"
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import unittest
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from testutils import header
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import sys,os
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sys.path.append(os.path.join(sys.path[0],".."))
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import globals
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import debug
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import verify
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OPTS = globals.OPTS
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#@unittest.skip("SKIPPING 03_ptx_test")
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class ptx_test(unittest.TestCase):
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def runTest(self):
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globals.init_openram("config_20_{0}".format(OPTS.tech_name))
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||||||
|
# we will manually run lvs/drc
|
||||||
|
OPTS.check_lvsdrc = False
|
||||||
|
|
||||||
|
import ptx
|
||||||
|
import tech
|
||||||
|
|
||||||
|
debug.info(2, "Checking three fingers PMOS")
|
||||||
|
fet = ptx.ptx(width=tech.drc["minwidth_tx"],
|
||||||
|
mults=4,
|
||||||
|
tx_type="pmos",
|
||||||
|
connect_active=True,
|
||||||
|
connect_poly=True)
|
||||||
|
self.local_check(fet)
|
||||||
|
|
||||||
|
OPTS.check_lvsdrc = True
|
||||||
|
globals.end_openram()
|
||||||
|
|
||||||
|
def add_mods(self, fet):
|
||||||
|
self.create_contacts()
|
||||||
|
self.add_well_extension(fet)
|
||||||
|
self.add_wire_extension(fet)
|
||||||
|
self.add_well_tiedown(fet)
|
||||||
|
self.add_poly_tiedown(fet)
|
||||||
|
|
||||||
|
def create_contacts(self):
|
||||||
|
layer_stack = ("active", "contact", "metal1")
|
||||||
|
self.well_contact = contact.contact(layer_stack)
|
||||||
|
|
||||||
|
layer_stack = ("poly", "contact", "metal1")
|
||||||
|
self.poly_contact = contact.contact(layer_stack)
|
||||||
|
|
||||||
|
def add_well_tiedown(self, fet):
|
||||||
|
offset = [fet.active_contact_positions[0][0],
|
||||||
|
fet.active_contact_positions[0][1] + fet.well_height]
|
||||||
|
fet.add_inst(name="well_tap",
|
||||||
|
mod=self.well_contact,
|
||||||
|
offset=offset,
|
||||||
|
mirror="R0",
|
||||||
|
rotate=0)
|
||||||
|
fet.well_contact = self.well_contact
|
||||||
|
fet.well_tiedown_location = offset
|
||||||
|
|
||||||
|
def add_well_extension(self, fet):
|
||||||
|
well_define = {"pmos": "nwell",
|
||||||
|
"nmos": "pwell"}
|
||||||
|
well_type = well_define[fet.tx_type]
|
||||||
|
offset = getattr(fet,"{}_position".format(well_type))
|
||||||
|
if tech.info["has_{0}".format(well_type)]:
|
||||||
|
fet.add_rect(layerNumber=tech.layer[well_type],
|
||||||
|
offset=offset,
|
||||||
|
width=fet.well_width,
|
||||||
|
height=2 * fet.well_height)
|
||||||
|
fet.add_rect(layerNumber=tech.layer["{0}implant".format(fet.tx_type[0])],
|
||||||
|
offset=offset,
|
||||||
|
width=fet.well_width,
|
||||||
|
height=2 * fet.well_height)
|
||||||
|
fet.add_rect(layerNumber=tech.layer["vtg"],
|
||||||
|
offset=offset,
|
||||||
|
width=fet.well_width,
|
||||||
|
height=2 * fet.well_height)
|
||||||
|
|
||||||
|
well_type = "{0}well".format(fet.tx_type[0])
|
||||||
|
offset[1] = offset[1] - 3 * fet.well_height
|
||||||
|
if tech.info["has_{0}".format(well_type)]:
|
||||||
|
fet.add_rect(layerNumber=tech.layer[well_type],
|
||||||
|
offset=offset,
|
||||||
|
width=fet.well_width,
|
||||||
|
height=3 * fet.well_height)
|
||||||
|
fet.add_rect(layerNumber=tech.layer["{0}implant".format(well_define[fet.tx_type][
|
||||||
|
0])],
|
||||||
|
offset=offset,
|
||||||
|
width=fet.well_width,
|
||||||
|
height=3 * fet.well_height)
|
||||||
|
fet.add_rect(layerNumber=tech.layer["vtg"],
|
||||||
|
offset=offset,
|
||||||
|
width=fet.well_width,
|
||||||
|
height=3 * fet.well_height)
|
||||||
|
|
||||||
|
def add_wire_extension(self, fet):
|
||||||
|
xcorrect = (fet.active_contact.width / 2) - (tech.drc["minwidth_metal1"] / 2)
|
||||||
|
offset = [fet.active_contact_positions[0][0] + xcorrect,
|
||||||
|
fet.active_contact_positions[0][1]]
|
||||||
|
fet.add_rect(layerNumber=tech.layer["metal1"],
|
||||||
|
offset=offset,
|
||||||
|
width=tech.drc["minwidth_metal1"],
|
||||||
|
height=fet.well_height)
|
||||||
|
|
||||||
|
offset = [fet.active_contact_positions[-1][0] + xcorrect,
|
||||||
|
fet.active_contact_positions[-1][1] - 2 * fet.well_height]
|
||||||
|
fet.add_rect(layerNumber=tech.layer["metal1"],
|
||||||
|
offset=offset,
|
||||||
|
width=tech.drc["minwidth_metal1"],
|
||||||
|
height=2 * fet.well_height)
|
||||||
|
|
||||||
|
offset = [fet.poly_positions[-1][0],
|
||||||
|
fet.poly_positions[-1][1] - (fet.well_height)]
|
||||||
|
fet.add_rect(layerNumber=tech.layer["poly"],
|
||||||
|
offset=offset,
|
||||||
|
width=tech.drc["minwidth_poly"],
|
||||||
|
height=fet.well_height)
|
||||||
|
|
||||||
|
def add_poly_tiedown(self, fet):
|
||||||
|
xcorrect = abs(self.poly_contact.upper_layer_vertical_enclosure -
|
||||||
|
self.poly_contact.lower_layer_vertical_enclosure)
|
||||||
|
offset = [fet.poly_positions[-1][0] - xcorrect,
|
||||||
|
fet.poly_positions[-1][1] - (fet.well_height)]
|
||||||
|
fet.add_inst(name="poly_contact",
|
||||||
|
mod=self.poly_contact,
|
||||||
|
offset=offset,
|
||||||
|
mirror="R270")
|
||||||
|
|
||||||
|
|
||||||
|
offset = [fet.active_contact_positions[-1][0], fet.active_contact_positions
|
||||||
|
[-1][1] - 2 * fet.well_height - self.well_contact.height]
|
||||||
|
fet.poly_tiedown_location = offset
|
||||||
|
fet.add_inst(name="n_tiedown",
|
||||||
|
mod=self.well_contact,
|
||||||
|
offset=offset)
|
||||||
|
tech.ptx_port.add_custom_layer(fet)
|
||||||
|
|
||||||
|
def local_check(self, fet):
|
||||||
|
tempspice = OPTS.openram_temp + "temp.sp"
|
||||||
|
tempgds = OPTS.openram_temp + "temp.gds"
|
||||||
|
|
||||||
|
fet.sp_write(tempspice)
|
||||||
|
fet.gds_write(tempgds)
|
||||||
|
|
||||||
|
self.assertFalse(verify.run_drc(fet.name, tempgds))
|
||||||
|
|
||||||
|
os.remove(tempspice)
|
||||||
|
os.remove(tempgds)
|
||||||
|
|
||||||
|
# instantiate a copy of the class to actually run the test
|
||||||
|
if __name__ == "__main__":
|
||||||
|
(OPTS, args) = globals.parse_args()
|
||||||
|
del sys.argv[1:]
|
||||||
|
header(__file__, OPTS.tech_name)
|
||||||
|
unittest.main()
|
||||||
Loading…
Reference in New Issue