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Made parasitic delay parameter in Freepdk45 more accurate, added stage names to delay model.

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This commit is contained in:
Hunter Nichols
2018-12-17 23:32:02 -08:00
parent 51b1bd46da
commit 8eb4812e16
5 changed files with 15 additions and 8 deletions
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compiler/characterizer/logical_effort.py
+10 -4
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@@ -10,7 +10,8 @@ class logical_effort():
min_inv_cin = 1+beta
pinv=parameter["min_inv_para_delay"]
def __init__(self, size, cin, cout, parasitic, out_is_rise=True):
def __init__(self, name, size, cin, cout, parasitic, out_is_rise=True):
self.name = name
self.cin = cin
self.cout = cout
self.logical_effort = (self.cin/size)/logical_effort.min_inv_cin
@@ -19,8 +20,13 @@ class logical_effort():
self.is_rise = out_is_rise
def __str__(self):
return "g=" + str(self.logical_effort) + ", h=" + str(self.eletrical_effort) + ", p=" + str(self.parasitic_scale)+"*pinv, rise_delay="+str(self.is_rise)
return "Name={}, g={}, h={}, p={}*pinv, rise_delay={}".format(self.name,
self.logical_effort,
self.eletrical_effort,
self.parasitic_scale,
self.is_rise
)
def get_stage_effort(self):
return self.logical_effort*self.eletrical_effort
@@ -40,7 +46,7 @@ def calculate_relative_rise_fall_delays(stage_effort_list, pinv=parameter["min_i
debug.info(2, "Calculating rise/fall relative delays")
total_rise_delay, total_fall_delay = 0,0
for stage in stage_effort_list:
debug.info(3, stage)
debug.info(2, stage)
if stage.is_rise:
total_rise_delay += stage.get_stage_delay(pinv)
else: