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Add multiple process corners. Unit tests use nominal corner only. Add fake SCMOS nominal models, but they are broken.

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This commit is contained in:
Matt Guthaus
2018-02-12 09:33:23 -08:00
parent 1795dc5677
commit a12ebeed9f
15 changed files with 77 additions and 31 deletions
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compiler/characterizer/stimuli.py
+10 -11
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@@ -26,8 +26,7 @@ class stimuli():
self.sf = stim_file
(self.process, self.vdd_voltage, self.temperature) = corner
self.gnd_voltage = 0
(self.process, self.voltage, self.temperature) = corner
self.device_models = tech.spice["fet_models"][self.process]
@@ -158,7 +157,7 @@ class stimuli():
# shift signal times earlier for setup time
times = np.array(clk_times) - setup*period
values = np.array(data_values) * self.vdd_voltage
values = np.array(data_values) * self.voltage
half_slew = 0.5 * slew
self.sf.write("* (time, data): {}\n".format(zip(clk_times, data_values)))
self.sf.write("V{0} {0} 0 PWL (0n {1}v ".format(sig_name, values[0]))
@@ -174,10 +173,10 @@ class stimuli():
self.sf.write("V{0} {0} 0 DC {1}\n".format(sig_name, v_val))
def get_inverse_voltage(self, value):
if value > 0.5*self.vdd_voltage:
return self.gnd_voltage
elif value <= 0.5*self.vdd_voltage:
return self.vdd_voltage
if value > 0.5*self.voltage:
return 0
elif value <= 0.5*self.voltage:
return self.voltage
else:
debug.error("Invalid value to get an inverse of: {0}".format(value))
@@ -256,11 +255,11 @@ class stimuli():
def write_supply(self):
""" Writes supply voltage statements """
self.sf.write("V{0} {0} 0.0 {1}\n".format(self.vdd_name, self.vdd_voltage))
self.sf.write("V{0} {0} 0.0 {1}\n".format(self.gnd_name, self.gnd_voltage))
self.sf.write("V{0} {0} 0.0 {1}\n".format(self.vdd_name, self.voltage))
self.sf.write("V{0} {0} 0.0 {1}\n".format(self.gnd_name, 0))
# This is for the test power supply
self.sf.write("V{0} {0} 0.0 {1}\n".format("test"+self.vdd_name, self.vdd_voltage))
self.sf.write("V{0} {0} 0.0 {1}\n".format("test"+self.gnd_name, self.gnd_voltage))
self.sf.write("V{0} {0} 0.0 {1}\n".format("test"+self.vdd_name, self.voltage))
self.sf.write("V{0} {0} 0.0 {1}\n".format("test"+self.gnd_name, 0))
def run_sim(self):