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Check for failed result in functional simulation

This commit is contained in:
Matt Guthaus 2020-09-30 12:40:07 -07:00
parent 112d57d90a
commit 2b475670f7
2 changed files with 25 additions and 17 deletions
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8
compiler/characterizer/delay.py
View File

@ -134,17 +134,17 @@ class delay(simulation):
self.bitline_volt_meas = []
self.bitline_volt_meas.append(voltage_at_measure("v_bl_READ_ZERO",
self.bl_name))
self.bl_name))
self.bitline_volt_meas[-1].meta_str = sram_op.READ_ZERO
self.bitline_volt_meas.append(voltage_at_measure("v_br_READ_ZERO",
self.br_name))
self.br_name))
self.bitline_volt_meas[-1].meta_str = sram_op.READ_ZERO
self.bitline_volt_meas.append(voltage_at_measure("v_bl_READ_ONE",
self.bl_name))
self.bl_name))
self.bitline_volt_meas[-1].meta_str = sram_op.READ_ONE
self.bitline_volt_meas.append(voltage_at_measure("v_br_READ_ONE",
self.br_name))
self.br_name))
self.bitline_volt_meas[-1].meta_str = sram_op.READ_ONE
return self.bitline_volt_meas

34
compiler/characterizer/functional.py
View File

@ -229,17 +229,25 @@ class functional(simulation):
sp_read_value = ""
for bit in range(self.word_size + self.num_spare_cols):
value = parse_spice_list("timing", "v{0}.{1}ck{2}".format(dout_port.lower(), bit, check))
if value > self.v_high:
sp_read_value = "1" + sp_read_value
elif value < self.v_low:
sp_read_value = "0" + sp_read_value
else:
error ="FAILED: {0}_{1} value {2} at time {3}n does not fall within noise margins <{4} or >{5}.".format(dout_port,
bit,
value,
eo_period,
self.v_low,
self.v_high)
try:
value = float(value)
if value > self.v_high:
sp_read_value = "1" + sp_read_value
elif value < self.v_low:
sp_read_value = "0" + sp_read_value
else:
error ="FAILED: {0}_{1} value {2} at time {3}n does not fall within noise margins <{4} or >{5}.".format(dout_port,
bit,
value,
eo_period,
self.v_low,
self.v_high)
except ValueError:
error ="FAILED: {0}_{1} value {2} at time {3}n is not a float.".format(dout_port,
bit,
value,
eo_period)
return (0, error)
self.read_results.append([sp_read_value, dout_port, eo_period, check])
@ -348,8 +356,8 @@ class functional(simulation):
# Write important signals to stim file
self.sf.write("\n\n* Important signals for debug\n")
self.sf.write("* bl: {}\n".format(self.bl_name))
self.sf.write("* br: {}\n".format(self.br_name))
self.sf.write("* bl: {}\n".format(self.bl_name.format(port)))
self.sf.write("* br: {}\n".format(self.br_name.format(port)))
self.sf.write("* s_en: {}\n".format(self.sen_name))
self.sf.write("* q: {}\n".format(self.q_name))
self.sf.write("* qbar: {}\n".format(self.qbar_name))