+ def forcestart(self):
+ """Forcibly start a connection."""
+
+ for i in range(0x880,0xfff):
+ #self.glitchVoltages(0x880, i);
+ self.start();
+ bits=self.lockbits();
+ print "At %04x, Lockbits: %02x" % (i,bits);
+ if(bits==0xFF): return;
+ def erase(self):
+ """Erase the target chip."""
+ self.writecmd(self.AVRAPP,0xF0,0,None);
+ def lockbits(self):
+ """Read the target's lockbits."""
+ self.writecmd(self.AVRAPP,0x82,0,None);
+ return ord(self.data[0]);
+ def setlockbits(self,bits=0x00):
+ """Read the target's lockbits."""
+ self.writecmd(self.AVRAPP,0x92,1,[bits]);
+ return self.lockbits();
+ def lock(self):
+ self.setlockbits(0xFC);
+ def eeprompeek(self, adr):
+ """Read a byte of the target's EEPROM."""
+ self.writecmd(self.AVRAPP,0x81 ,2,
+ [ (adr&0xFF), (adr>>8)]
+ );#little-endian address
+ return ord(self.data[0]);
+ def flashpeek(self, adr):
+ """Read a byte of the target's Flash memory."""
+ self.writecmd(self.AVRAPP,0x02 ,2,
+ [ (adr&0xFF), (adr>>8)]
+ );#little-endian address
+ return ord(self.data[0]);
+ def flashpeekblock(self, adr):
+ """Read a byte of the target's Flash memory."""
+ self.writecmd(self.AVRAPP,0x02 ,4,
+ [ (adr&0xFF), (adr>>8) &0xFF, 0x80, 0x00]
+ );
+ return self.data;
+
+ def eeprompoke(self, adr, val):
+ """Write a byte of the target's EEPROM."""
+ self.writecmd(self.AVRAPP,0x91 ,3,
+ [ (adr&0xFF), (adr>>8), val]
+ );#little-endian address
+ return ord(self.data[0]);
+