X-Git-Url: http://git.rot13.org/?p=goodfet;a=blobdiff_plain;f=client%2FGoodFET.py;h=d2beb5cbb7163708bca7440e067648214c76f16e;hp=63e38e984c1e2b8d35f69e5c79c02a18acc79338;hb=dbd55dca7cded37fc93f74beb7c3043f11389d6e;hpb=f6e88098e3f1bd2d7205c8f948a2dc2a5a780593 diff --git a/client/GoodFET.py b/client/GoodFET.py index 63e38e9..d2beb5c 100755 --- a/client/GoodFET.py +++ b/client/GoodFET.py @@ -40,8 +40,12 @@ class GoodFET: parity = serial.PARITY_NONE ) - #Explicitly set RTS + #This might cause problems, but it makes failure graceful. + #self.serialport._timeout = 5; + + #Explicitly set RTS and DTR to halt board. self.serialport.setRTS(1); + self.serialport.setDTR(1); #Drop DTR, which is !RST, low to begin the app. self.serialport.setDTR(0); self.serialport.flushInput() @@ -64,7 +68,7 @@ class GoodFET: #if data!=None: # count=len(data); #Initial count ignored. - #print "TX %02x %02x" % (app,verb); + #print "TX %02x %02x %04x" % (app,verb,count); #little endian 16-bit length self.serialport.write(chr(count&0xFF)); @@ -73,11 +77,12 @@ class GoodFET: #print "count=%02x, len(data)=%04x" % (count,len(data)); if count!=0: - for i in range(0,count): + if(isinstance(data,list)): + for i in range(0,count): #print "Converting %02x at %i" % (data[i],i) - data[i]=chr(data[i]); + data[i]=chr(data[i]); + #print type(data); outstr=''.join(data); - #outstr=data; self.serialport.write(outstr); if not self.besilent: self.readcmd(); @@ -103,21 +108,35 @@ class GoodFET: #Debugging string; print, but wait. if self.app==0xFF and self.verb==0xFF: - print "DEBUG %s" % self.serialport.read(self.count); + print "# DEBUG %s" % self.serialport.read(self.count); + sys.stdout.flush(); else: self.data=self.serialport.read(self.count); return self.data; #Glitching stuff. - def glitchAPP(self,app): + def glitchApp(self,app): """Glitch into a device by its application.""" self.data=[app&0xff]; self.writecmd(self.GLITCHAPP,0x80,1,self.data); #return ord(self.data[0]); - def glitchVERB(self,app,verb, data): - """Glitch during a transaction..""" + def glitchVerb(self,app,verb,data): + """Glitch during a transaction.""" + if data==None: data=[]; self.data=[app&0xff, verb&0xFF]+data; self.writecmd(self.GLITCHAPP,0x81,len(self.data),self.data); #return ord(self.data[0]); + def glitchstart(self): + """Glitch into the AVR application.""" + self.glitchVerb(self.APP,0x20,None); + def glitchstarttime(self): + """Measure the timer of the START verb.""" + return self.glitchTime(self.APP,0x20,None); + def glitchTime(self,app,verb,data): + """Time the execution of a verb.""" + if data==None: data=[]; + self.data=[app&0xff, verb&0xFF]+data; + self.writecmd(self.GLITCHAPP,0x82,len(self.data),self.data); + return ord(self.data[0])+(ord(self.data[1])<<8); def glitchVoltages(self,low=0x0880, high=0x0fff): """Set glitching voltages. (0x0fff is max.)""" self.data=[low&0xff, (low>>8)&0xff, @@ -145,6 +164,14 @@ class GoodFET: def dir(self,byte): """Write a byte to P5DIR.""" self.writecmd(0,0xA0,1,[byte]); + def call(self,adr): + """Call to an address.""" + self.writecmd(0,0x30,2, + [adr&0xFF,(adr>>8)&0xFF]); + def execute(self,code): + """Execute supplied code.""" + self.writecmd(0,0x31,2,#len(code), + code); def peekbyte(self,address): """Read a byte of memory from the monitor.""" self.data=[address&0xff,address>>8]; @@ -228,20 +255,29 @@ class GoodFET: - def I2Csetup(self): - """Move the FET into the I2C application.""" - self.writecmd(0x02,0x10,0,self.data); #SPI/SETUP - def I2Cstart(self): - """Start an I2C transaction.""" - self.writecmd(0x02,0x20,0,self.data); #SPI/SETUP - def I2Cstop(self): - """Stop an I2C transaction.""" - self.writecmd(0x02,0x21,0,self.data); #SPI/SETUP - def I2Cread(self,len=1): - """Read len bytes by I2C.""" - self.writecmd(0x02,0x00,1,[len]); #SPI/SETUP - return self.data; - def I2Cwrite(self,bytes): - """Write bytes by I2C.""" - self.writecmd(0x02,0x01,len(bytes),bytes); #SPI/SETUP - return ord(self.data[0]); + def infostring(self): + a=self.peekbyte(0xff0); + b=self.peekbyte(0xff1); + return "%02x%02x" % (a,b); + def lock(self): + print "Locking Unsupported."; + def erase(self): + print "Erasure Unsupported."; + def setup(self): + return; + def start(self): + return; + def test(self): + return; + def status(self): + return; + + + def peek32(self,address, memory="vn"): + return (self.peek16(address,memory)+ + (self.peek16(address+2,memory)<<16)); + def peek16(self,address, memory="vn"): + return (self.peek8(address,memory)+ + (self.peek8(address+1,memory)<<8)); + def peek8(self,address, memory="vn"): + return 0xde;