luke
/
OpenRAM
mirror of https://github.com/VLSIDA/OpenRAM.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

Move measure functions from stimuli to measure

This commit is contained in:
Bugra Onal 2022-09-09 12:51:53 -07:00
parent b9dbad4750
commit b1e4c83373
3 changed files with 46 additions and 12 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
compiler/characterizer/delay.py
View File

@ -698,6 +698,8 @@ class delay(simulation):
self.sf.write("\n* Measure statements for idle leakage power\n")
# add measure statements for power
# TODO: Convert to measure statement insted of using stimuli
# measure = power_measure('leakage_power',
t_initial = self.period
t_final = 2 * self.period
self.stim.gen_meas_power(meas_name="leakage_power",

1
compiler/characterizer/functional.py
View File

@ -484,6 +484,7 @@ class functional(simulation):
measure_name,
voltage_value,
eo_period))
# TODO: Convert to measurement statement instead of stimuli
self.stim.gen_meas_value(meas_name=measure_name,
dout=signal_name,
t_initial=t_initial,

55
compiler/characterizer/measurements.py
View File

@ -27,16 +27,17 @@ class spice_measurement(ABC):
def get_measure_function(self):
return None
@abstractmethod
def measure_function(self):
return None
@abstractmethod
def get_measure_values(self):
return None
def write_measure(self, stim_obj, input_tuple):
measure_func = self.get_measure_function()
if measure_func is None:
debug.error("Did not set measure function", 1)
measure_vals = self.get_measure_values(*input_tuple)
measure_func(stim_obj, *measure_vals)
self.measure_func(stim_obj, *measure_vals)
def retrieve_measure(self, port=None):
self.port_error_check(port)
@ -72,8 +73,18 @@ class delay_measure(spice_measurement):
spice_measurement.__init__(self, measure_name, measure_scale, has_port)
self.set_meas_constants(trig_name, targ_name, trig_dir_str, targ_dir_str, trig_vdd, targ_vdd)
def get_measure_function(self):
return stimuli.gen_meas_delay
def measure_function(self, stim_obj, meas_name, trig_name, targ_name, trig_val, targ_val, trig_dir, targ_dir, trig_td, targ_td):
""" Creates the .meas statement for the measurement of delay """
measure_string=".meas tran {0} TRIG v({1}) VAL={2} {3}=1 TD={4}n TARG v({5}) VAL={6} {7}=1 TD={8}n\n\n"
stim_obj.mf.write(measure_string.format(meas_name.lower(),
trig_name,
trig_val,
trig_dir,
trig_td,
targ_name,
targ_val,
targ_dir,
targ_td))
def set_meas_constants(self, trig_name, targ_name, trig_dir_str, targ_dir_str, trig_vdd, targ_vdd):
"""Set the constants for this measurement: signal names, directions, and trigger scales"""
@ -136,8 +147,17 @@ class power_measure(spice_measurement):
spice_measurement.__init__(self, measure_name, measure_scale, has_port)
self.set_meas_constants(power_type)
def get_measure_function(self):
return stimuli.gen_meas_power
def measure_function(self, stim_obj, meas_name, t_initial, t_final):
""" Creates the .meas statement for the measurement of avg power """
# power mea cmd is different in different spice:
if OPTS.spice_name == "hspice":
power_exp = "power"
else:
power_exp = "par('(-1*v(" + str(self.vdd_name) + ")*I(v" + str(self.vdd_name) + "))')"
stim_obj.mf.write(".meas tran {0} avg {1} from={2}n to={3}n\n\n".format(meas_name.lower(),
power_exp,
t_initial,
t_final))
def set_meas_constants(self, power_type):
"""Sets values useful for power simulations. This value is only meta related to the lib file (rise/fall)"""
@ -161,8 +181,15 @@ class voltage_when_measure(spice_measurement):
spice_measurement.__init__(self, measure_name, measure_scale, has_port)
self.set_meas_constants(trig_name, targ_name, trig_dir_str, trig_vdd)
def get_measure_function(self):
return stimuli.gen_meas_find_voltage
def gen_meas_find_voltage(self, stim_obj, meas_name, trig_name, targ_name, trig_val, trig_dir, trig_td):
""" Creates the .meas statement for the measurement of delay """
measure_string=".meas tran {0} FIND v({1}) WHEN v({2})={3}v {4}=1 TD={5}n \n\n"
stim_obj.mf.write(measure_string.format(meas_name.lower(),
targ_name,
trig_name,
trig_val,
trig_dir,
trig_td))
def set_meas_constants(self, trig_name, targ_name, trig_dir_str, trig_vdd):
"""Sets values useful for power simulations. This value is only meta related to the lib file (rise/fall)"""
@ -195,8 +222,12 @@ class voltage_at_measure(spice_measurement):
spice_measurement.__init__(self, measure_name, measure_scale, has_port)
self.set_meas_constants(targ_name)
def get_measure_function(self):
return stimuli.gen_meas_find_voltage_at_time
def gen_meas_find_voltage_at_time(self, stim_obj, meas_name, targ_name, time_at):
""" Creates the .meas statement for voltage at time"""
measure_string=".meas tran {0} FIND v({1}) AT={2}n \n\n"
stim_obj.mf.write(measure_string.format(meas_name.lower(),
targ_name,
time_at))
def set_meas_constants(self, targ_name):
"""Sets values useful for power simulations. This value is only meta related to the lib file (rise/fall)"""