git.rot13.org Git - goodfet/blob - client/GoodFET.py

   1 #!/usr/bin/env python
   2 # GoodFET Client Library
   3 #
   4 # (C) 2009 Travis Goodspeed <travis at radiantmachines.com>
   5 #
   6 # This code is being rewritten and refactored.  You've been warned!
   7
   8 import sys, time, string, cStringIO, struct, glob, os;
   9 import sqlite3;
  10
  11 fmt = ("B", "<H", None, "<L")
  12
  13 def getClient(name="GoodFET"):
  14     import GoodFET, GoodFETCC, GoodFETAVR, GoodFETSPI, GoodFETMSP430, GoodFETNRF, GoodFETCCSPI;
  15     if(name=="GoodFET" or name=="monitor"): return GoodFET.GoodFET();
  16     elif name=="cc" or name=="cc51": return GoodFETCC.GoodFETCC();
  17     elif name=="cc2420" or name=="ccspi": return GoodFETCCSPI.GoodFETCCSPI();
  18     elif name=="avr": return GoodFETAVR.GoodFETAVR();
  19     elif name=="spi": return GoodFETSPI.GoodFETSPI();
  20     elif name=="msp430": return GoodFETMSP430.GoodFETMSP430();
  21     elif name=="nrf": return GoodFETNRF.GoodFETNRF();
  22
  23     print "Unsupported target: %s" % name;
  24     sys.exit(0);
  25
  26 class SymbolTable:
  27     """GoodFET Symbol Table"""
  28     db=sqlite3.connect(":memory:");
  29
  30     def __init__(self, *args, **kargs):
  31         self.db.execute("create table if not exists symbols(adr,name,memory,size,comment);");
  32     def get(self,name):
  33         self.db.commit();
  34         c=self.db.cursor();
  35         try:
  36             c.execute("select adr,memory from symbols where name=?",(name,));
  37             for row in c:
  38                 #print "Found it.";
  39                 sys.stdout.flush();
  40                 return row[0];
  41             #print "No dice.";
  42         except:# sqlite3.OperationalError:
  43             #print "SQL error.";
  44             return eval(name);
  45         return eval(name);
  46     def define(self,adr,name,comment="",memory="vn",size=16):
  47         self.db.execute("insert into symbols(adr,name,memory,size,comment)"
  48                         "values(?,?,?,?,?);", (
  49                 adr,name,memory,size,comment));
  50         #print "Set %s=%s." % (name,adr);
  51 class GoodFETbtser:
  52     """py-bluez class for emulating py-serial."""
  53     def __init__(self,btaddr):
  54         import bluetooth;
  55         while btaddr==None or btaddr=="none" or btaddr=="bluetooth":
  56             print "performing inquiry..."
  57             nearby_devices = bluetooth.discover_devices(lookup_names = True)
  58             print "found %d devices" % len(nearby_devices)
  59             for addr, name in nearby_devices:
  60                 print "  %s - '%s'" % (addr, name)
  61                 if name=='FireFly-A6BD':
  62                     btaddr=addr;
  63         print "Identified GoodFET at %s" % btaddr;
  64
  65         # BlueFET doesn't run the Service Discovery Protocol.
  66         # Instead we manually use the portnumber.
  67         port=1;
  68
  69         print "Connecting to %s on port %i." % (btaddr, port);
  70         sock=bluetooth.BluetoothSocket(bluetooth.RFCOMM);
  71         self.sock=sock;
  72         sock.connect((btaddr,port));
  73         sock.settimeout(10);  #IMPORTANT Must be patient.
  74
  75         #Once connected, we need to get synced.
  76         #This might require a firmware patch.
  77         str=None;
  78         while str!="http://goodfet.sf.net/":
  79             str=self.read(64);
  80             print str;
  81     def write(self,msg):
  82         """Send traffic."""
  83         return self.sock.send(msg);
  84     def read(self,len):
  85         """Read traffic."""
  86         return self.sock.recv(len);
  87 class GoodFET:
  88     """GoodFET Client Library"""
  89
  90     besilent=0;
  91     app=0;
  92     verb=0;
  93     count=0;
  94     data="";
  95     verbose=False
  96
  97     GLITCHAPP=0x71;
  98     MONITORAPP=0x00;
  99     symbols=SymbolTable();
 100
 101     def __init__(self, *args, **kargs):
 102         self.data=[0];
 103     def getConsole(self):
 104         from GoodFETConsole import GoodFETConsole;
 105         return GoodFETConsole(self);
 106     def name2adr(self,name):
 107         return self.symbols.get(name);
 108     def timeout(self):
 109         print "timeout\n";
 110     def serInit(self, port=None, timeout=2, attemptlimit=None):
 111         """Open a serial port of some kind."""
 112
 113         if port=="bluetooth" or os.environ.get("GOODFET")=="bluetooth":
 114             self.btInit(port,timeout,attemptlimit);
 115         else:
 116             self.pyserInit(port,timeout,attemptlimit);
 117     def btInit(self, port, timeout, attemptlimit):
 118         """Open a bluetooth port.""";
 119         self.verbose=True;
 120         self.serialport=GoodFETbtser(port);
 121
 122     def pyserInit(self, port, timeout, attemptlimit):
 123         """Open the serial port"""
 124         # Make timeout None to wait forever, 0 for non-blocking mode.
 125         import serial;
 126
 127         if os.name=='nt' and sys.version.find('64 bit')!=-1:
 128             print "WARNING: PySerial requires a 32-bit Python build in Windows.";
 129
 130         if port is None and os.environ.get("GOODFET")!=None:
 131             glob_list = glob.glob(os.environ.get("GOODFET"));
 132             if len(glob_list) > 0:
 133                 port = glob_list[0];
 134             else:
 135                 port = os.environ.get("GOODFET");
 136         if port is None:
 137             glob_list = glob.glob("/dev/tty.usbserial*");
 138             if len(glob_list) > 0:
 139                 port = glob_list[0];
 140         if port is None:
 141             glob_list = glob.glob("/dev/ttyUSB*");
 142             if len(glob_list) > 0:
 143                 port = glob_list[0];
 144         if port is None:
 145             glob_list = glob.glob("/dev/ttyU0");
 146             if len(glob_list) > 0:
 147                 port = glob_list[0];
 148         if port is None and os.name=='nt':
 149             from scanwin32 import winScan;
 150             scan=winScan();
 151             for order,comport,desc,hwid in sorted(scan.comports()):
 152                 try:
 153                     if hwid.index('FTDI')==0:
 154                         port=comport;
 155                         #print "Using FTDI port %s" % port
 156                 except:
 157                     #Do nothing.
 158                     a=1;
 159
 160         baud=115200;
 161         if(os.environ.get("platform")=='arduino'):
 162             baud=19200; #Slower, for now.
 163         self.serialport = serial.Serial(
 164             port,
 165             #9600,
 166             baud,
 167             parity = serial.PARITY_NONE,
 168             timeout=timeout
 169             )
 170
 171         self.verb=0;
 172         attempts=0;
 173         connected=0;
 174         while connected==0:
 175             while self.verb!=0x7F or self.data!="http://goodfet.sf.net/":
 176             #while self.data!="http://goodfet.sf.net/":
 177                 #print "'%s'!=\n'%s'" % (self.data,"http://goodfet.sf.net/");
 178                 if attemptlimit is not None and attempts >= attemptlimit:
 179                     return
 180                 elif attempts>2:
 181                     print "Resyncing.";
 182                 self.serialport.flushInput()
 183                 self.serialport.flushOutput()
 184
 185                 #TelosB reset, prefer software to I2C SPST Switch.
 186                 if(os.environ.get("platform")=='telosb'):
 187                     #print "TelosB Reset";
 188                     self.telosBReset();
 189                 else:
 190                     #Explicitly set RTS and DTR to halt board.
 191                     self.serialport.setRTS(1);
 192                     self.serialport.setDTR(1);
 193                     #Drop DTR, which is !RST, low to begin the app.
 194                     self.serialport.setDTR(0);
 195
 196                 #self.serialport.write(chr(0x80));
 197                 #self.serialport.write(chr(0x80));
 198                 #self.serialport.write(chr(0x80));
 199                 #self.serialport.write(chr(0x80));
 200
 201
 202                 #self.serialport.flushInput()
 203                 #self.serialport.flushOutput()
 204                 #time.sleep(60);
 205                 attempts=attempts+1;
 206                 self.readcmd(); #Read the first command.
 207                 #print "Got %02x,%02x:'%s'" % (self.app,self.verb,self.data);
 208             #Here we have a connection, but maybe not a good one.
 209             #print "We have a connection."
 210             connected=1;
 211             olds=self.infostring();
 212             clocking=self.monitorclocking();
 213             #if(os.environ.get("platform")!='arduino'):
 214             for foo in range(1,30):
 215                 if not self.monitorecho():
 216                     if self.verbose:
 217                         print "Comm error on %i try, resyncing out of %s." % (foo,
 218                                                                               clocking);
 219                         connected=0;
 220                         break;
 221         if self.verbose: print "Connected after %02i attempts." % attempts;
 222         self.mon_connected();
 223         self.serialport.setTimeout(12);
 224     def serClose(self):
 225         self.serialport.close();
 226     def telosSetSCL(self, level):
 227         self.serialport.setRTS(not level)
 228     def telosSetSDA(self, level):
 229         self.serialport.setDTR(not level)
 230
 231     def telosI2CStart(self):
 232         self.telosSetSDA(1)
 233         self.telosSetSCL(1)
 234         self.telosSetSDA(0)
 235
 236     def telosI2CStop(self):
 237         self.telosSetSDA(0)
 238         self.telosSetSCL(1)
 239         self.telosSetSDA(1)
 240
 241     def telosI2CWriteBit(self, bit):
 242         self.telosSetSCL(0)
 243         self.telosSetSDA(bit)
 244         time.sleep(2e-6)
 245         self.telosSetSCL(1)
 246         time.sleep(1e-6)
 247         self.telosSetSCL(0)
 248
 249     def telosI2CWriteByte(self, byte):
 250         self.telosI2CWriteBit( byte & 0x80 );
 251         self.telosI2CWriteBit( byte & 0x40 );
 252         self.telosI2CWriteBit( byte & 0x20 );
 253         self.telosI2CWriteBit( byte & 0x10 );
 254         self.telosI2CWriteBit( byte & 0x08 );
 255         self.telosI2CWriteBit( byte & 0x04 );
 256         self.telosI2CWriteBit( byte & 0x02 );
 257         self.telosI2CWriteBit( byte & 0x01 );
 258         self.telosI2CWriteBit( 0 );  # "acknowledge"
 259
 260     def telosI2CWriteCmd(self, addr, cmdbyte):
 261         self.telosI2CStart()
 262         self.telosI2CWriteByte( 0x90 | (addr << 1) )
 263         self.telosI2CWriteByte( cmdbyte )
 264         self.telosI2CStop()
 265
 266     def telosBReset(self,invokeBSL=0):
 267         # "BSL entry sequence at dedicated JTAG pins"
 268         # rst !s0: 0 0 0 0 1 1
 269         # tck !s1: 1 0 1 0 0 1
 270         #   s0|s1: 1 3 1 3 2 0
 271
 272         # "BSL entry sequence at shared JTAG pins"
 273         # rst !s0: 0 0 0 0 1 1
 274         # tck !s1: 0 1 0 1 1 0
 275         #   s0|s1: 3 1 3 1 0 2
 276
 277         if invokeBSL:
 278             self.telosI2CWriteCmd(0,1)
 279             self.telosI2CWriteCmd(0,3)
 280             self.telosI2CWriteCmd(0,1)
 281             self.telosI2CWriteCmd(0,3)
 282             self.telosI2CWriteCmd(0,2)
 283             self.telosI2CWriteCmd(0,0)
 284         else:
 285             self.telosI2CWriteCmd(0,3)
 286             self.telosI2CWriteCmd(0,2)
 287
 288         # This line was not defined inside the else: block, not sure where it
 289         # should be however
 290         self.telosI2CWriteCmd(0,0)
 291         time.sleep(0.250)       #give MSP430's oscillator time to stabilize
 292         self.serialport.flushInput()  #clear buffers
 293
 294
 295     def getbuffer(self,size=0x1c00):
 296         writecmd(0,0xC2,[size&0xFF,(size>>16)&0xFF]);
 297         print "Got %02x%02x buffer size." % (self.data[1],self.data[0]);
 298     def writecmd(self, app, verb, count=0, data=[]):
 299         """Write a command and some data to the GoodFET."""
 300         self.serialport.write(chr(app));
 301         self.serialport.write(chr(verb));
 302
 303         #if data!=None:
 304         #    count=len(data); #Initial count ignored.
 305
 306         #print "TX %02x %02x %04x" % (app,verb,count);
 307
 308         #little endian 16-bit length
 309         self.serialport.write(chr(count&0xFF));
 310         self.serialport.write(chr(count>>8));
 311
 312         if self.verbose:
 313             print "Tx: ( 0x%02x, 0x%02x, 0x%04x )" % ( app, verb, count )
 314
 315         #print "count=%02x, len(data)=%04x" % (count,len(data));
 316
 317         if count!=0:
 318             if(isinstance(data,list)):
 319                 for i in range(0,count):
 320                 #print "Converting %02x at %i" % (data[i],i)
 321                     data[i]=chr(data[i]);
 322             #print type(data);
 323             outstr=''.join(data);
 324             self.serialport.write(outstr);
 325         if not self.besilent:
 326             return self.readcmd()
 327         else:
 328             return []
 329
 330     def readcmd(self):
 331         """Read a reply from the GoodFET."""
 332         while 1:#self.serialport.inWaiting(): # Loop while input data is available
 333             try:
 334                 #print "Reading...";
 335                 self.app=ord(self.serialport.read(1));
 336                 #print "APP=%02x" % self.app;
 337                 self.verb=ord(self.serialport.read(1));
 338
 339                 #Fixes an obscure bug in the TelosB.
 340                 if self.app==0x00:
 341                     while self.verb==0x00:
 342                         self.verb=ord(self.serialport.read(1));
 343
 344                 #print "VERB=%02x" % self.verb;
 345                 self.count=(
 346                     ord(self.serialport.read(1))
 347                     +(ord(self.serialport.read(1))<<8)
 348                     );
 349
 350                 #if self.verbose:
 351                 #print "Rx: ( 0x%02x, 0x%02x, 0x%04x )" % ( self.app, self.verb, self.count )
 352
 353                 #Debugging string; print, but wait.
 354                 if self.app==0xFF:
 355                     if self.verb==0xFF:
 356                         print "# DEBUG %s" % self.serialport.read(self.count)
 357                     elif self.verb==0xFE:
 358                         print "# DEBUG 0x%x" % struct.unpack(fmt[self.count-1], self.serialport.read(self.count))[0]
 359                     elif self.verb==0xFD:
 360                         #Do nothing, just wait so there's no timeout.
 361                         print "# NOP.";
 362
 363                     sys.stdout.flush();
 364                 else:
 365                     self.data=self.serialport.read(self.count);
 366                     return self.data;
 367             except TypeError:
 368                 if self.connected:
 369                     print "Warning: waiting for serial read timed out (most likely).";
 370                     #print "This shouldn't happen after syncing.  Exiting for safety.";
 371                     #sys.exit(-1)
 372                 return self.data;
 373     #Glitching stuff.
 374     def glitchApp(self,app):
 375         """Glitch into a device by its application."""
 376         self.data=[app&0xff];
 377         self.writecmd(self.GLITCHAPP,0x80,1,self.data);
 378         #return ord(self.data[0]);
 379     def glitchVerb(self,app,verb,data):
 380         """Glitch during a transaction."""
 381         if data==None: data=[];
 382         self.data=[app&0xff, verb&0xFF]+data;
 383         self.writecmd(self.GLITCHAPP,0x81,len(self.data),self.data);
 384         #return ord(self.data[0]);
 385     def glitchstart(self):
 386         """Glitch into the AVR application."""
 387         self.glitchVerb(self.APP,0x20,None);
 388     def glitchstarttime(self):
 389         """Measure the timer of the START verb."""
 390         return self.glitchTime(self.APP,0x20,None);
 391     def glitchTime(self,app,verb,data):
 392         """Time the execution of a verb."""
 393         if data==None: data=[];
 394         self.data=[app&0xff, verb&0xFF]+data;
 395         print "Timing app %02x verb %02x." % (app,verb);
 396         self.writecmd(self.GLITCHAPP,0x82,len(self.data),self.data);
 397         time=ord(self.data[0])+(ord(self.data[1])<<8);
 398         print "Timed to be %i." % time;
 399         return time;
 400     def glitchVoltages(self,low=0x0880, high=0x0fff):
 401         """Set glitching voltages. (0x0fff is max.)"""
 402         self.data=[low&0xff, (low>>8)&0xff,
 403                    high&0xff, (high>>8)&0xff];
 404         self.writecmd(self.GLITCHAPP,0x90,4,self.data);
 405         #return ord(self.data[0]);
 406     def glitchRate(self,count=0x0800):
 407         """Set glitching count period."""
 408         self.data=[count&0xff, (count>>8)&0xff];
 409         self.writecmd(self.GLITCHAPP,0x91,2,
 410                       self.data);
 411         #return ord(self.data[0]);
 412
 413
 414     #Monitor stuff
 415     def silent(self,s=0):
 416         """Transmissions halted when 1."""
 417         self.besilent=s;
 418         print "besilent is %i" % self.besilent;
 419         self.writecmd(0,0xB0,1,[s]);
 420     connected=0;
 421     def mon_connected(self):
 422         """Announce to the monitor that the connection is good."""
 423         self.connected=1;
 424         self.writecmd(0,0xB1,0,[]);
 425     def out(self,byte):
 426         """Write a byte to P5OUT."""
 427         self.writecmd(0,0xA1,1,[byte]);
 428     def dir(self,byte):
 429         """Write a byte to P5DIR."""
 430         self.writecmd(0,0xA0,1,[byte]);
 431     def call(self,adr):
 432         """Call to an address."""
 433         self.writecmd(0,0x30,2,
 434                       [adr&0xFF,(adr>>8)&0xFF]);
 435     def execute(self,code):
 436         """Execute supplied code."""
 437         self.writecmd(0,0x31,2,#len(code),
 438                       code);
 439     def MONpeek8(self,address):
 440         """Read a byte of memory from the monitor."""
 441         self.data=[address&0xff,address>>8];
 442         self.writecmd(0,0x02,2,self.data);
 443         #self.readcmd();
 444         return ord(self.data[0]);
 445     def MONpeek16(self,address):
 446         """Read a word of memory from the monitor."""
 447         return self.MONpeek8(address)+(self.MONpeek8(address+1)<<8);
 448     def peek(self,address):
 449         """Read a word of memory from the monitor."""
 450         return self.MONpeek8(address)+(self.MONpeek8(address+1)<<8);
 451     def eeprompeek(self,address):
 452         """Read a word of memory from the monitor."""
 453         print "EEPROM peeking not supported for the monitor.";
 454         #return self.MONpeek8(address)+(self.MONpeek8(address+1)<<8);
 455     def peekbysym(self,name):
 456         """Read a value by its symbol name."""
 457         #TODO include memory in symbol.
 458         reg=self.symbols.get(name);
 459         return self.peek8(reg,"data");
 460     def pokebysym(self,name,val):
 461         """Write a value by its symbol name."""
 462         #TODO include memory in symbol.
 463         reg=self.symbols.get(name);
 464         return self.pokebyte(reg,val);
 465     def pokebyte(self,address,value,memory="vn"):
 466         """Set a byte of memory by the monitor."""
 467         self.data=[address&0xff,address>>8,value];
 468         self.writecmd(0,0x03,3,self.data);
 469         return ord(self.data[0]);
 470     def poke16(self,address,value):
 471         """Set a word of memory by the monitor."""
 472         self.pokebyte(address,value&0xFF);
 473         self.pokebyte(address,(value>>8)&0xFF);
 474         return value;
 475     def setsecret(self,value):
 476         """Set a secret word for later retreival.  Used by glitcher."""
 477         #self.eeprompoke(0,value);
 478         #self.eeprompoke(1,value);
 479         print "Secret setting is not yet suppored for this target.";
 480         print "Aborting.";
 481
 482     def getsecret(self):
 483         """Get a secret word.  Used by glitcher."""
 484         #self.eeprompeek(0);
 485         print "Secret getting is not yet suppored for this target.";
 486         print "Aborting.";
 487         sys.exit();
 488
 489     def dumpmem(self,begin,end):
 490         i=begin;
 491         while i<end:
 492             print "%04x %04x" % (i, self.MONpeek16(i));
 493             i+=2;
 494     def monitor_ram_pattern(self):
 495         """Overwrite all of RAM with 0xBEEF."""
 496         self.writecmd(0,0x90,0,self.data);
 497         return;
 498     def monitor_ram_depth(self):
 499         """Determine how many bytes of RAM are unused by looking for 0xBEEF.."""
 500         self.writecmd(0,0x91,0,self.data);
 501         return ord(self.data[0])+(ord(self.data[1])<<8);
 502
 503     #Baud rates.
 504     baudrates=[115200,
 505                9600,
 506                19200,
 507                38400,
 508                57600,
 509                115200];
 510     def setBaud(self,baud):
 511         """Change the baud rate.  TODO fix this."""
 512         rates=self.baudrates;
 513         self.data=[baud];
 514         print "Changing FET baud."
 515         self.serialport.write(chr(0x00));
 516         self.serialport.write(chr(0x80));
 517         self.serialport.write(chr(1));
 518         self.serialport.write(chr(baud));
 519
 520         print "Changed host baud."
 521         self.serialport.setBaudrate(rates[baud]);
 522         time.sleep(1);
 523         self.serialport.flushInput()
 524         self.serialport.flushOutput()
 525
 526         print "Baud is now %i." % rates[baud];
 527         return;
 528     def readbyte(self):
 529         return ord(self.serialport.read(1));
 530     def findbaud(self):
 531         for r in self.baudrates:
 532             print "\nTrying %i" % r;
 533             self.serialport.setBaudrate(r);
 534             #time.sleep(1);
 535             self.serialport.flushInput()
 536             self.serialport.flushOutput()
 537
 538             for i in range(1,10):
 539                 self.readbyte();
 540
 541             print "Read %02x %02x %02x %02x" % (
 542                 self.readbyte(),self.readbyte(),self.readbyte(),self.readbyte());
 543     def monitortest(self):
 544         """Self-test several functions through the monitor."""
 545         print "Performing monitor self-test.";
 546         self.monitorclocking();
 547         for f in range(0,3000):
 548             a=self.MONpeek16(0x0c00);
 549             b=self.MONpeek16(0x0c02);
 550             if a!=0x0c04 and a!=0x0c06:
 551                 print "ERROR Fetched %04x, %04x" % (a,b);
 552             self.pokebyte(0x0021,0); #Drop LED
 553             if self.MONpeek8(0x0021)!=0:
 554                 print "ERROR, P1OUT not cleared.";
 555             self.pokebyte(0x0021,1); #Light LED
 556             if not self.monitorecho():
 557                 print "Echo test failed.";
 558         print "Self-test complete.";
 559         self.monitorclocking();
 560     def monitorecho(self):
 561         data="The quick brown fox jumped over the lazy dog.";
 562         self.writecmd(self.MONITORAPP,0x81,len(data),data);
 563         if self.data!=data:
 564             print "Comm error recognized by monitorecho(), got:\n%s" % self.data;
 565             return 0;
 566         return 1;
 567
 568     def monitor_info(self):
 569         print "GoodFET with %s MCU" % self.infostring();
 570         print "Clocked at %s" % self.monitorclocking();
 571         return 1;
 572
 573     def monitor_list_apps(self, full=False):
 574         self.monitor_info()
 575         old_value = self.besilent
 576         self.besilent = True    # turn off automatic call to readcmd
 577         self.writecmd(self.MONITORAPP, 0x82, 1, [int(full)]);
 578         self.besilent = old_value
 579
 580         # read the build date string
 581         self.readcmd()
 582         print "Build Date: %s" % self.data
 583         print "Firmware apps:"
 584         while True:
 585             self.readcmd()
 586             if self.count == 0:
 587                 break
 588             print self.data
 589         return 1;
 590
 591     def monitorclocking(self):
 592         """Return the 16-bit clocking value."""
 593         return "0x%04x" % self.monitorgetclock();
 594
 595     def monitorsetclock(self,clock):
 596         """Set the clocking value."""
 597         self.MONpoke16(0x56, clock);
 598     def monitorgetclock(self):
 599         """Get the clocking value."""
 600         if(os.environ.get("platform")=='arduino'):
 601             return 0xDEAD;
 602         #Check for MSP430 before peeking this.
 603         return self.MONpeek16(0x56);
 604     # The following functions ought to be implemented in
 605     # every client.
 606
 607     def infostring(self):
 608         if(os.environ.get("platform")=='arduino'):
 609             return "Arduino";
 610         else:
 611             a=self.MONpeek8(0xff0);
 612             b=self.MONpeek8(0xff1);
 613             return "%02x%02x" % (a,b);
 614     def lock(self):
 615         print "Locking Unsupported.";
 616     def erase(self):
 617         print "Erasure Unsupported.";
 618     def setup(self):
 619         return;
 620     def start(self):
 621         return;
 622     def test(self):
 623         print "Unimplemented.";
 624         return;
 625     def status(self):
 626         print "Unimplemented.";
 627         return;
 628     def halt(self):
 629         print "Unimplemented.";
 630         return;
 631     def resume(self):
 632         print "Unimplemented.";
 633         return;
 634     def getpc(self):
 635         print "Unimplemented.";
 636         return 0xdead;
 637     def flash(self,file):
 638         """Flash an intel hex file to code memory."""
 639         print "Flash not implemented.";
 640     def dump(self,file,start=0,stop=0xffff):
 641         """Dump an intel hex file from code memory."""
 642         print "Dump not implemented.";
 643     def peek32(self,address, memory="vn"):
 644         """Peek 32 bits."""
 645         return (self.peek16(address,memory)+
 646                 (self.peek16(address+2,memory)<<16));
 647     def peek16(self,address, memory="vn"):
 648         """Peek 16 bits of memory."""
 649         return (self.peek8(address,memory)+
 650                 (self.peek8(address+1,memory)<<8));
 651     def peek8(self,address, memory="vn"):
 652         """Peek a byte of memory."""
 653         return self.MONpeek8(address); #monitor
 654     def peekblock(self,address,length,memory="vn"):
 655         """Return a block of data."""
 656         data=range(0,length);
 657         for foo in range(0,length):
 658             data[foo]=self.peek8(address+foo,memory);
 659         return data;
 660     def pokeblock(self,address,bytes,memory="vn"):
 661         """Poke a block of a data into memory at an address."""
 662         for foo in bytes:
 663             self.pokebyte(address,foo,memory);
 664             address=address+1;
 665         return;
 666     def loadsymbols(self):
 667         """Load symbols from a file."""
 668         return;