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Converted input load to Farads for cacti module to fit other units.

This commit is contained in:
Hunter Nichols 2021-07-25 17:22:03 -07:00
parent 7dd9023ce4
commit 7fc4469b97
1 changed files with 10 additions and 7 deletions
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15
compiler/characterizer/cacti.py
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@ -65,19 +65,22 @@ class cacti(simulation):
# Set delay/power for slews and loads # Set delay/power for slews and loads
port_data = self.get_empty_measure_data_dict() port_data = self.get_empty_measure_data_dict()
power = self.analytical_power(load_slews) power = self.analytical_power(load_slews)
debug.info(1, 'Slew, Load, Delay(ns), Slew(ns)') debug.info(1, 'Slew (ns), Load (fF), Delay(ns), Slew(ns)')
max_delay = 0.0 max_delay = 0.0
for load,slew in load_slews: for load,slew in load_slews:
# Calculate delay based on slew and load # Calculate delay based on slew and load
path_delays = self.graph.get_timing(bl_path, self.corner, slew, load, self.params) # Calculations expect Farad, input is Femto-Farad
load_farad = load*1e-12
path_delays = self.graph.get_timing(bl_path, self.corner, slew, load_farad, self.params)
total_delay = self.sum_delays(path_delays) total_delay = self.sum_delays(path_delays)
delay_ns = total_delay.delay/1e-9
slew_ns = total_delay.slew/1e-9
max_delay = max(max_delay, total_delay.delay) max_delay = max(max_delay, total_delay.delay)
debug.info(1, debug.info(1,'{}, {}, {}, {}'.format(slew,
'{}, {}, {}, {}'.format(slew,
load, load,
total_delay.delay / 1e3, delay_ns,
total_delay.slew / 1e3)) slew_ns))
# Delay is only calculated on a single port and replicated for now. # Delay is only calculated on a single port and replicated for now.
for port in self.all_ports: for port in self.all_ports:
for mname in self.delay_meas_names + self.power_meas_names: for mname in self.delay_meas_names + self.power_meas_names: