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