g('set term png');
g('set output "timevcc.png"');
g(script_timevcc);
- def explore(self,tstart=0,tstop=-1, trials=5):
+ def explore(self,tstart=0,tstop=-1, trials=1):
"""Exploration phase. Uses thresholds to find exploitable points."""
gnd=0;
self.scansetup(1); #Lock the chip, place key in eeprom.
c=self.db.cursor();
c.execute("select time,min,max from glitchrange where max-min>0;");
rows=c.fetchall();
+ c.close();
+ random.shuffle(rows);
for r in rows:
t=r[0];
min=r[1];
rows=c.fetchall();
for a in rows:
return True;
+ c.close();
return False;
def scanat(self,lock,trials,vcc,gnd,time):
client=self.client;
- db=self.db;
client.glitchRate(time);
client.glitchVoltages(gnd, vcc); #drop voltage target
gcount=0;
scount+=1;
#print "values (%i,%i,%i,%i,%i);" % (
# time,vcc,gnd,gcount,scount);
- if(lock>0):
+ if(lock==0):
self.db.execute("insert into glitches(time,vcc,gnd,trials,glitchcount,count,lock)"
"values (%i,%i,%i,%i,%i,%i,%i);" % (
time,vcc,gnd,trials,gcount,scount,lock));