def test_transistor_gate_diff_same(self):
netlist = Netlist()
str_netlist = "M0001 VDD VDD N0002 GND NMOS\n" \
"M0002 N0001 IN002 IN002 VDD PMOS\n" \
"M0003 OUT01 N0001 IN002 VDD PMOS\n"
netlist.set_netlist(str_netlist)
self.assertTrue(
netlist.get_transistor('M0001').is_gate_same_as_one_diff())
self.assertTrue(
netlist.get_transistor('M0002').is_gate_same_as_one_diff())
self.assertFalse(
netlist.get_transistor('M0003').is_gate_same_as_one_diff())
class ResistiveDefect:
def __init__(self, db):
self.netlist_ = Netlist()
self.tg_netlist_ = Netlist()
self.short_defects_ = list()
self.open_defects_ = list()
self.bsf_ = None
self.bsf_weak_ = None
self.faulty_bsf_ = None
self.faulty_bsf_weak_ = None
self.db_ = db.dup_self()
self.cell_table_ = db.get_table()
self.defect_table_ = self.cell_table_ + '_FAULT_LIB'
if not self.db_.is_table_exist(self.defect_table_):
self.create_fault_lib()
self.db_.set_table(self.defect_table_)
def create_fault_lib(self, is_drop_exist=False):
table_desc = dict()
table_desc['table_name'] = self.defect_table_
table_columns = list()
table_columns.append({
'name': 'idFAULT_LIB',
'type': 'INT',
'property': 'NOT NULL AUTO_INCREMENT'
})
table_columns.append({
'name': 'idCELL',
'type': 'INT',
'property': 'NOT NULL'
})
table_columns.append({
'name': 'FAULT_DESC',
'type': 'VARCHAR(1000)',
'property': 'NULL'
})
table_columns.append({
'name': 'FAULTY_NETLIST',
'type': 'VARCHAR(1000)',
'property': 'NULL'
})
table_columns.append({
'name':
'FAULTY_BSF',
'type':
'VARCHAR(256)',
'property':
"CHARACTER SET 'utf8' COLLATE 'utf8_bin' NULL"
})
table_columns.append({
'name':
'FAULTY_BSF_weak',
'type':
'VARCHAR(256)',
'property':
"CHARACTER SET 'utf8' COLLATE 'utf8_bin' NULL"
})
table_columns.append({
'name': 'FAULT_TYPE',
'type': 'VARCHAR(45)',
'property': 'NULL'
})
table_columns.append({
'name': 'FAULTY_VEC_CNT',
'type': 'INT',
'property': 'NULL'
})
table_columns.append({
'name': 'FAULTY_VEC_CNT_weak',
'type': 'INT',
'property': 'NULL'
})
table_desc['table_columns'] = table_columns
table_primary_keys = ['idFAULT_LIB']
table_desc['table_pks'] = table_primary_keys
if self.db_.is_table_exist(table_desc['table_name']):
if is_drop_exist:
self.db_.run_sql(
f"DROP TABLE IF EXISTS {table_desc['table_name']}")
else:
return
self.db_.create_table(table_desc)
def set_netlist(self, str_netlist):
self.netlist_.set_netlist(str_netlist)
self.bsf_, self.bsf_weak_ = csim(str_netlist)
self.short_defects_.clear()
self.open_defects_.clear()
def reset_tg_netlist(self, is_open=False):
if is_open:
# constantly off TG
self.tg_netlist_.set_netlist(
"M1001 IN101 GND IN102 GND NMOS\nM1002 IN101 VDD IN102 VDD PMOS\n"
)
else:
self.tg_netlist_.set_netlist(
"M1001 IN101 VDD IN102 GND NMOS\nM1002 IN101 GND IN102 VDD PMOS\n"
)
def gen_short_defect_str_netlist(self, short_defect):
self.reset_tg_netlist()
self.tg_netlist_.rename_node_only(short_defect[0], 'IN101')
self.tg_netlist_.rename_node_only(short_defect[1], 'IN102')
return self.netlist_.get_netlist_string(
) + self.tg_netlist_.get_netlist_string()
def get_faulty_vec_cnts(self):
faulty_vec_cnt = 0
faulty_weak_vec_cnt = 0
for i in range(len(self.bsf_)):
if self.bsf_[i] != self.faulty_bsf_[i]:
faulty_vec_cnt += 1
if self.bsf_weak_[i] != self.faulty_bsf_weak_[i]:
faulty_weak_vec_cnt += 1
return faulty_vec_cnt, faulty_weak_vec_cnt
def get_defect_info_dict(self, defect, defect_type):
defect_info_dict = dict()
defect_info_dict['FAULT_TYPE'] = defect_type
defect_info_dict['FAULT_DESC'] = str(defect)
if defect_type == 'open':
defect_info_dict[
'FAULTY_NETLIST'] = self.gen_open_defect_str_netlist(defect)
elif defect_type == 'short':
defect_info_dict[
'FAULTY_NETLIST'] = self.gen_short_defect_str_netlist(defect)
else:
raise ValueError(f'unknown defect type: {defect_type}')
self.faulty_bsf_, self.faulty_bsf_weak_ = csim(
defect_info_dict['FAULTY_NETLIST'])
defect_info_dict['FAULTY_BSF'] = self.faulty_bsf_
defect_info_dict['FAULTY_BSF_weak'] = self.faulty_bsf_weak_
defect_info_dict['FAULTY_VEC_CNT'], defect_info_dict[
'FAULTY_VEC_CNT_weak'] = self.get_faulty_vec_cnts()
return defect_info_dict
def get_all_defect_info_dicts(self):
self.gen_defect_list()
defects_info_list = list()
for open_defect in self.open_defects_:
defects_info_list.append(
self.get_defect_info_dict(open_defect, 'open'))
for short_defect in self.short_defects_:
defects_info_list.append(
self.get_defect_info_dict(short_defect, 'short'))
return defects_info_list
def insert_defect_details_for_id_cell(self, id_cell):
str_netlist = self.db_.get_query_value(
'CELL_NETLIST',
f'SELECT CELL_NETLIST FROM {self.cell_table_} WHERE idCELL=%s',
[id_cell])
if str_netlist is None:
raise ValueError(
f'Cell # {id_cell} does not exist in {self.cell_table_}')
self.set_netlist(str_netlist)
for defect_dict in self.get_all_defect_info_dicts():
defect_dict['idCELL'] = id_cell
self.db_.insert_nocommit(defect_dict)
self.db_.commit()
def gen_open_defect_str_netlist(self, open_defect):
defect_node_name = 'N1000'
self.reset_tg_netlist(True)
self.tg_netlist_.rename_node_only(open_defect[0], 'IN101')
self.tg_netlist_.rename_node_only(defect_node_name, 'IN102')
# insert defect
for terminal in open_defect[1]:
defect_transistor = self.netlist_.get_transistor(terminal[:-1])
defect_terminal = defect_transistor.get_terminal_with_short_type(
terminal[-1:])
defect_terminal.set_node(self.netlist_.get_node(defect_node_name))
# save defect netlist
defect_str_netlist = self.netlist_.get_netlist_string(
) + self.tg_netlist_.get_netlist_string()
# restore netlist
for terminal in open_defect[1]:
defect_transistor = self.netlist_.get_transistor(terminal[:-1])
defect_terminal = defect_transistor.get_terminal_with_short_type(
terminal[-1:])
defect_terminal.set_node(self.netlist_.get_node(open_defect[0]))
return defect_str_netlist
def gen_defect_list(self):
nodes = list(self.netlist_.get_all_nodes())
# short defects
# a pair of nets
# E.g. ('GND', 'N0001')
for node_pair in combinations(nodes, r=2):
if node_pair[0].is_supply() and node_pair[1].is_supply():
continue
if node_pair[0].is_pi() and node_pair[1].is_supply():
continue
if node_pair[0].is_supply() and node_pair[1].is_pi():
continue
if node_pair[0].is_pi() and node_pair[1].is_pi():
continue
self.short_defects_.append(
(node_pair[0].get_name(), node_pair[1].get_name()))
# open defects
# net name followed by
# 1) either lists of transistor terminals (if the net is a supply net)
# E.g. ['GND', ['M0001d', 'M0002d', 'M0003d']] will become:
# ['GND', ['M0001d']]
# ['GND', ['M0002d']]
# ['GND', ['M0003d']]
#
# 2) (if the net is an internal net or output net)
# or the first partition of transistor terminals which should be disconnected from the node
# E.g. ['N0001', ['M0002s', 'M0003s'], ['M0001g', 'M0005s']] will become:
# ['N0001', ['M0002s', 'M0003s']]
for node in nodes:
if node.is_pi() or node.is_supply():
# each terminal can be disconnected from the source/supply net individually
for terminal in node.get_terminals():
temp_defect = list()
temp_defect.append(node.get_name())
temp_defect.append([
terminal.get_owner_name() + terminal.get_type_short()
])
self.open_defects_.append(temp_defect)
else:
# partition needed for internal nodes and output node
num = len(node.get_terminals())
if num == 1:
# this node only has one terminal hence cannot become open
continue
else:
for i in range(1, num):
for partitions in combinations(node.get_terminals(),
r=i):
partition_a = [
x.get_owner_name() + x.get_type_short()
for x in node.get_terminals()
if x in partitions
]
temp_defect = list()
temp_defect.append(node.get_name())
temp_defect.append(partition_a)
self.open_defects_.append(temp_defect)
