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         if 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                 #TODO switch to wildcards.
  62                 if name=='FireFly-A6BD':
  63                     btaddr=addr;
  64                 if name=='RN42-A94A':
  65                     btaddr=addr;
  66
  67             print "Please set $GOODFET to the address of your device.";
  68             sys.exit();
  69         print "Identified GoodFET at %s" % btaddr;
  70
  71         # Manually use the portnumber.
  72         port=1;
  73
  74         print "Connecting to %s on port %i." % (btaddr, port);
  75         sock=bluetooth.BluetoothSocket(bluetooth.RFCOMM);
  76         self.sock=sock;
  77         sock.connect((btaddr,port));
  78         sock.settimeout(10);  #IMPORTANT Must be patient.
  79
  80         ##This is what we'd do for a normal reset.
  81         #str="";
  82         #while not str.endswith("goodfet.sf.net/"):
  83         #    str=self.read(64);
  84         #    print str;
  85
  86         # Instead, just return and hope for the best.
  87         return;
  88
  89     def write(self,msg):
  90         """Send traffic."""
  91         import time;
  92         self.sock.send(msg);
  93         #time.sleep(0.1);
  94         return;
  95     def read(self,length):
  96         """Read traffic."""
  97         data="";
  98         while len(data)<length:
  99             data=data+self.sock.recv(length-len(data));
 100         return data;
 101 class GoodFET:
 102     """GoodFET Client Library"""
 103
 104     besilent=0;
 105     app=0;
 106     verb=0;
 107     count=0;
 108     data="";
 109     verbose=False
 110
 111     GLITCHAPP=0x71;
 112     MONITORAPP=0x00;
 113     symbols=SymbolTable();
 114
 115     def __init__(self, *args, **kargs):
 116         self.data=[0];
 117     def getConsole(self):
 118         from GoodFETConsole import GoodFETConsole;
 119         return GoodFETConsole(self);
 120     def name2adr(self,name):
 121         return self.symbols.get(name);
 122     def timeout(self):
 123         print "timeout\n";
 124     def serInit(self, port=None, timeout=2, attemptlimit=None):
 125         """Open a serial port of some kind."""
 126         import re;
 127
 128         if port==None:
 129             port=os.environ.get("GOODFET");
 130         if port=="bluetooth" or (port is not None and re.match("..:..:..:..:..:..",port)):
 131             self.btInit(port,timeout,attemptlimit);
 132         else:
 133             self.pyserInit(port,timeout,attemptlimit);
 134     def btInit(self, port, timeout, attemptlimit):
 135         """Open a bluetooth port.""";
 136         #self.verbose=True;  #For debugging BT.
 137         self.serialport=GoodFETbtser(port);
 138
 139     def pyserInit(self, port, timeout, attemptlimit):
 140         """Open the serial port"""
 141         # Make timeout None to wait forever, 0 for non-blocking mode.
 142         import serial;
 143
 144         if os.name=='nt' and sys.version.find('64 bit')!=-1:
 145             print "WARNING: PySerial requires a 32-bit Python build in Windows.";
 146
 147         if port is None and os.environ.get("GOODFET")!=None:
 148             glob_list = glob.glob(os.environ.get("GOODFET"));
 149             if len(glob_list) > 0:
 150                 port = glob_list[0];
 151             else:
 152                 port = os.environ.get("GOODFET");
 153         if port is None:
 154             glob_list = glob.glob("/dev/tty.usbserial*");
 155             if len(glob_list) > 0:
 156                 port = glob_list[0];
 157         if port is None:
 158             glob_list = glob.glob("/dev/ttyUSB*");
 159             if len(glob_list) > 0:
 160                 port = glob_list[0];
 161         if port is None:
 162             glob_list = glob.glob("/dev/ttyU0");
 163             if len(glob_list) > 0:
 164                 port = glob_list[0];
 165         if port is None and os.name=='nt':
 166             from scanwin32 import winScan;
 167             scan=winScan();
 168             for order,comport,desc,hwid in sorted(scan.comports()):
 169                 try:
 170                     if hwid.index('FTDI')==0:
 171                         port=comport;
 172                         #print "Using FTDI port %s" % port
 173                 except:
 174                     #Do nothing.
 175                     a=1;
 176
 177         baud=115200;
 178         if(os.environ.get("platform")=='arduino' or os.environ.get("board")=='arduino'):
 179             baud=19200; #Slower, for now.
 180         self.serialport = serial.Serial(
 181             port,
 182             #9600,
 183             baud,
 184             parity = serial.PARITY_NONE,
 185             timeout=timeout
 186             )
 187
 188         self.verb=0;
 189         attempts=0;
 190         connected=0;
 191         while connected==0:
 192             while self.verb!=0x7F or self.data!="http://goodfet.sf.net/":
 193             #while self.data!="http://goodfet.sf.net/":
 194                 #print "'%s'!=\n'%s'" % (self.data,"http://goodfet.sf.net/");
 195                 if attemptlimit is not None and attempts >= attemptlimit:
 196                     return
 197                 elif attempts>2:
 198                     print "Resyncing.";
 199                 self.serialport.flushInput()
 200                 self.serialport.flushOutput()
 201
 202                 #TelosB reset, prefer software to I2C SPST Switch.
 203                 if(os.environ.get("platform")=='telosb' or  os.environ.get("board")=='telosb'):
 204                     #print "TelosB Reset";
 205                     self.telosBReset();
 206                 else:
 207                     #Explicitly set RTS and DTR to halt board.
 208                     self.serialport.setRTS(1);
 209                     self.serialport.setDTR(1);
 210                     #Drop DTR, which is !RST, low to begin the app.
 211                     self.serialport.setDTR(0);
 212
 213                 #self.serialport.write(chr(0x80));
 214                 #self.serialport.write(chr(0x80));
 215                 #self.serialport.write(chr(0x80));
 216                 #self.serialport.write(chr(0x80));
 217
 218
 219                 #self.serialport.flushInput()
 220                 #self.serialport.flushOutput()
 221                 #time.sleep(60);
 222                 attempts=attempts+1;
 223                 self.readcmd(); #Read the first command.
 224                 #print "Got %02x,%02x:'%s'" % (self.app,self.verb,self.data);
 225             #Here we have a connection, but maybe not a good one.
 226             #print "We have a connection."
 227             connected=1;
 228             olds=self.infostring();
 229             clocking=self.monitorclocking();
 230             for foo in range(1,30):
 231                 if not self.monitorecho():
 232                     if self.verbose:
 233                         print "Comm error on %i try, resyncing out of %s." % (foo,
 234                                                                               clocking);
 235                         connected=0;
 236                         break;
 237         if self.verbose: print "Connected after %02i attempts." % attempts;
 238         self.mon_connected();
 239         self.serialport.setTimeout(12);
 240     def serClose(self):
 241         self.serialport.close();
 242     def telosSetSCL(self, level):
 243         self.serialport.setRTS(not level)
 244     def telosSetSDA(self, level):
 245         self.serialport.setDTR(not level)
 246
 247     def telosI2CStart(self):
 248         self.telosSetSDA(1)
 249         self.telosSetSCL(1)
 250         self.telosSetSDA(0)
 251
 252     def telosI2CStop(self):
 253         self.telosSetSDA(0)
 254         self.telosSetSCL(1)
 255         self.telosSetSDA(1)
 256
 257     def telosI2CWriteBit(self, bit):
 258         self.telosSetSCL(0)
 259         self.telosSetSDA(bit)
 260         time.sleep(2e-6)
 261         self.telosSetSCL(1)
 262         time.sleep(1e-6)
 263         self.telosSetSCL(0)
 264
 265     def telosI2CWriteByte(self, byte):
 266         self.telosI2CWriteBit( byte & 0x80 );
 267         self.telosI2CWriteBit( byte & 0x40 );
 268         self.telosI2CWriteBit( byte & 0x20 );
 269         self.telosI2CWriteBit( byte & 0x10 );
 270         self.telosI2CWriteBit( byte & 0x08 );
 271         self.telosI2CWriteBit( byte & 0x04 );
 272         self.telosI2CWriteBit( byte & 0x02 );
 273         self.telosI2CWriteBit( byte & 0x01 );
 274         self.telosI2CWriteBit( 0 );  # "acknowledge"
 275
 276     def telosI2CWriteCmd(self, addr, cmdbyte):
 277         self.telosI2CStart()
 278         self.telosI2CWriteByte( 0x90 | (addr << 1) )
 279         self.telosI2CWriteByte( cmdbyte )
 280         self.telosI2CStop()
 281
 282     def telosBReset(self,invokeBSL=0):
 283         # "BSL entry sequence at dedicated JTAG pins"
 284         # rst !s0: 0 0 0 0 1 1
 285         # tck !s1: 1 0 1 0 0 1
 286         #   s0|s1: 1 3 1 3 2 0
 287
 288         # "BSL entry sequence at shared JTAG pins"
 289         # rst !s0: 0 0 0 0 1 1
 290         # tck !s1: 0 1 0 1 1 0
 291         #   s0|s1: 3 1 3 1 0 2
 292
 293         if invokeBSL:
 294             self.telosI2CWriteCmd(0,1)
 295             self.telosI2CWriteCmd(0,3)
 296             self.telosI2CWriteCmd(0,1)
 297             self.telosI2CWriteCmd(0,3)
 298             self.telosI2CWriteCmd(0,2)
 299             self.telosI2CWriteCmd(0,0)
 300         else:
 301             self.telosI2CWriteCmd(0,3)
 302             self.telosI2CWriteCmd(0,2)
 303
 304         # This line was not defined inside the else: block, not sure where it
 305         # should be however
 306         self.telosI2CWriteCmd(0,0)
 307         time.sleep(0.250)       #give MSP430's oscillator time to stabilize
 308         self.serialport.flushInput()  #clear buffers
 309
 310
 311     def getbuffer(self,size=0x1c00):
 312         writecmd(0,0xC2,[size&0xFF,(size>>16)&0xFF]);
 313         print "Got %02x%02x buffer size." % (self.data[1],self.data[0]);
 314     def writecmd(self, app, verb, count=0, data=[]):
 315         """Write a command and some data to the GoodFET."""
 316         self.serialport.write(chr(app));
 317         self.serialport.write(chr(verb));
 318
 319         #if data!=None:
 320         #    count=len(data); #Initial count ignored.
 321
 322         #print "TX %02x %02x %04x" % (app,verb,count);
 323
 324         #little endian 16-bit length
 325         self.serialport.write(chr(count&0xFF));
 326         self.serialport.write(chr(count>>8));
 327
 328         if self.verbose:
 329             print "Tx: ( 0x%02x, 0x%02x, 0x%04x )" % ( app, verb, count )
 330
 331         #print "count=%02x, len(data)=%04x" % (count,len(data));
 332
 333         if count!=0:
 334             if(isinstance(data,list)):
 335                 for i in range(0,count):
 336                 #print "Converting %02x at %i" % (data[i],i)
 337                     data[i]=chr(data[i]);
 338             #print type(data);
 339             outstr=''.join(data);
 340             self.serialport.write(outstr);
 341         if not self.besilent:
 342             return self.readcmd()
 343         else:
 344             return []
 345
 346     def readcmd(self):
 347         """Read a reply from the GoodFET."""
 348         while 1:#self.serialport.inWaiting(): # Loop while input data is available
 349             try:
 350                 #print "Reading...";
 351                 self.app=ord(self.serialport.read(1));
 352                 #print "APP=%02x" % self.app;
 353                 self.verb=ord(self.serialport.read(1));
 354
 355                 #Fixes an obscure bug in the TelosB.
 356                 if self.app==0x00:
 357                     while self.verb==0x00:
 358                         self.verb=ord(self.serialport.read(1));
 359
 360                 #print "VERB=%02x" % self.verb;
 361                 self.count=(
 362                     ord(self.serialport.read(1))
 363                     +(ord(self.serialport.read(1))<<8)
 364                     );
 365
 366                 if self.verbose:
 367                     print "Rx: ( 0x%02x, 0x%02x, 0x%04x )" % ( self.app, self.verb, self.count )
 368
 369                 #Debugging string; print, but wait.
 370                 if self.app==0xFF:
 371                     if self.verb==0xFF:
 372                         print "# DEBUG %s" % self.serialport.read(self.count)
 373                     elif self.verb==0xFE:
 374                         print "# DEBUG 0x%x" % struct.unpack(fmt[self.count-1], self.serialport.read(self.count))[0]
 375                     elif self.verb==0xFD:
 376                         #Do nothing, just wait so there's no timeout.
 377                         print "# NOP.";
 378
 379                     sys.stdout.flush();
 380                 else:
 381                     self.data=self.serialport.read(self.count);
 382                     return self.data;
 383             except TypeError:
 384                 if self.connected:
 385                     print "Warning: waiting for serial read timed out (most likely).";
 386                     #print "This shouldn't happen after syncing.  Exiting for safety.";
 387                     #sys.exit(-1)
 388                 return self.data;
 389     #Glitching stuff.
 390     def glitchApp(self,app):
 391         """Glitch into a device by its application."""
 392         self.data=[app&0xff];
 393         self.writecmd(self.GLITCHAPP,0x80,1,self.data);
 394         #return ord(self.data[0]);
 395     def glitchVerb(self,app,verb,data):
 396         """Glitch during a transaction."""
 397         if data==None: data=[];
 398         self.data=[app&0xff, verb&0xFF]+data;
 399         self.writecmd(self.GLITCHAPP,0x81,len(self.data),self.data);
 400         #return ord(self.data[0]);
 401     def glitchstart(self):
 402         """Glitch into the AVR application."""
 403         self.glitchVerb(self.APP,0x20,None);
 404     def glitchstarttime(self):
 405         """Measure the timer of the START verb."""
 406         return self.glitchTime(self.APP,0x20,None);
 407     def glitchTime(self,app,verb,data):
 408         """Time the execution of a verb."""
 409         if data==None: data=[];
 410         self.data=[app&0xff, verb&0xFF]+data;
 411         print "Timing app %02x verb %02x." % (app,verb);
 412         self.writecmd(self.GLITCHAPP,0x82,len(self.data),self.data);
 413         time=ord(self.data[0])+(ord(self.data[1])<<8);
 414         print "Timed to be %i." % time;
 415         return time;
 416     def glitchVoltages(self,low=0x0880, high=0x0fff):
 417         """Set glitching voltages. (0x0fff is max.)"""
 418         self.data=[low&0xff, (low>>8)&0xff,
 419                    high&0xff, (high>>8)&0xff];
 420         self.writecmd(self.GLITCHAPP,0x90,4,self.data);
 421         #return ord(self.data[0]);
 422     def glitchRate(self,count=0x0800):
 423         """Set glitching count period."""
 424         self.data=[count&0xff, (count>>8)&0xff];
 425         self.writecmd(self.GLITCHAPP,0x91,2,
 426                       self.data);
 427         #return ord(self.data[0]);
 428
 429
 430     #Monitor stuff
 431     def silent(self,s=0):
 432         """Transmissions halted when 1."""
 433         self.besilent=s;
 434         print "besilent is %i" % self.besilent;
 435         self.writecmd(0,0xB0,1,[s]);
 436     connected=0;
 437     def mon_connected(self):
 438         """Announce to the monitor that the connection is good."""
 439         self.connected=1;
 440         self.writecmd(0,0xB1,0,[]);
 441     def out(self,byte):
 442         """Write a byte to P5OUT."""
 443         self.writecmd(0,0xA1,1,[byte]);
 444     def dir(self,byte):
 445         """Write a byte to P5DIR."""
 446         self.writecmd(0,0xA0,1,[byte]);
 447     def call(self,adr):
 448         """Call to an address."""
 449         self.writecmd(0,0x30,2,
 450                       [adr&0xFF,(adr>>8)&0xFF]);
 451     def execute(self,code):
 452         """Execute supplied code."""
 453         self.writecmd(0,0x31,2,#len(code),
 454                       code);
 455     def MONpeek8(self,address):
 456         """Read a byte of memory from the monitor."""
 457         self.data=[address&0xff,address>>8];
 458         self.writecmd(0,0x02,2,self.data);
 459         #self.readcmd();
 460         return ord(self.data[0]);
 461     def MONpeek16(self,address):
 462         """Read a word of memory from the monitor."""
 463         return self.MONpeek8(address)+(self.MONpeek8(address+1)<<8);
 464     def peek(self,address):
 465         """Read a word of memory from the monitor."""
 466         return self.MONpeek8(address)+(self.MONpeek8(address+1)<<8);
 467     def eeprompeek(self,address):
 468         """Read a word of memory from the monitor."""
 469         print "EEPROM peeking not supported for the monitor.";
 470         #return self.MONpeek8(address)+(self.MONpeek8(address+1)<<8);
 471     def peekbysym(self,name):
 472         """Read a value by its symbol name."""
 473         #TODO include memory in symbol.
 474         reg=self.symbols.get(name);
 475         return self.peek8(reg,"data");
 476     def pokebysym(self,name,val):
 477         """Write a value by its symbol name."""
 478         #TODO include memory in symbol.
 479         reg=self.symbols.get(name);
 480         return self.pokebyte(reg,val);
 481     def pokebyte(self,address,value,memory="vn"):
 482         """Set a byte of memory by the monitor."""
 483         self.data=[address&0xff,address>>8,value];
 484         self.writecmd(0,0x03,3,self.data);
 485         return ord(self.data[0]);
 486     def poke16(self,address,value):
 487         """Set a word of memory by the monitor."""
 488         self.pokebyte(address,value&0xFF);
 489         self.pokebyte(address,(value>>8)&0xFF);
 490         return value;
 491     def setsecret(self,value):
 492         """Set a secret word for later retreival.  Used by glitcher."""
 493         #self.eeprompoke(0,value);
 494         #self.eeprompoke(1,value);
 495         print "Secret setting is not yet suppored for this target.";
 496         print "Aborting.";
 497
 498     def getsecret(self):
 499         """Get a secret word.  Used by glitcher."""
 500         #self.eeprompeek(0);
 501         print "Secret getting is not yet suppored for this target.";
 502         print "Aborting.";
 503         sys.exit();
 504
 505     def dumpmem(self,begin,end):
 506         i=begin;
 507         while i<end:
 508             print "%04x %04x" % (i, self.MONpeek16(i));
 509             i+=2;
 510     def monitor_ram_pattern(self):
 511         """Overwrite all of RAM with 0xBEEF."""
 512         self.writecmd(0,0x90,0,self.data);
 513         return;
 514     def monitor_ram_depth(self):
 515         """Determine how many bytes of RAM are unused by looking for 0xBEEF.."""
 516         self.writecmd(0,0x91,0,self.data);
 517         return ord(self.data[0])+(ord(self.data[1])<<8);
 518
 519     #Baud rates.
 520     baudrates=[115200,
 521                9600,
 522                19200,
 523                38400,
 524                57600,
 525                115200];
 526     def setBaud(self,baud):
 527         """Change the baud rate.  TODO fix this."""
 528         rates=self.baudrates;
 529         self.data=[baud];
 530         print "Changing FET baud."
 531         self.serialport.write(chr(0x00));
 532         self.serialport.write(chr(0x80));
 533         self.serialport.write(chr(1));
 534         self.serialport.write(chr(baud));
 535
 536         print "Changed host baud."
 537         self.serialport.setBaudrate(rates[baud]);
 538         time.sleep(1);
 539         self.serialport.flushInput()
 540         self.serialport.flushOutput()
 541
 542         print "Baud is now %i." % rates[baud];
 543         return;
 544     def readbyte(self):
 545         return ord(self.serialport.read(1));
 546     def findbaud(self):
 547         for r in self.baudrates:
 548             print "\nTrying %i" % r;
 549             self.serialport.setBaudrate(r);
 550             #time.sleep(1);
 551             self.serialport.flushInput()
 552             self.serialport.flushOutput()
 553
 554             for i in range(1,10):
 555                 self.readbyte();
 556
 557             print "Read %02x %02x %02x %02x" % (
 558                 self.readbyte(),self.readbyte(),self.readbyte(),self.readbyte());
 559     def monitortest(self):
 560         """Self-test several functions through the monitor."""
 561         print "Performing monitor self-test.";
 562         self.monitorclocking();
 563         for f in range(0,3000):
 564             a=self.MONpeek16(0x0c00);
 565             b=self.MONpeek16(0x0c02);
 566             if a!=0x0c04 and a!=0x0c06:
 567                 print "ERROR Fetched %04x, %04x" % (a,b);
 568             self.pokebyte(0x0021,0); #Drop LED
 569             if self.MONpeek8(0x0021)!=0:
 570                 print "ERROR, P1OUT not cleared.";
 571             self.pokebyte(0x0021,1); #Light LED
 572             if not self.monitorecho():
 573                 print "Echo test failed.";
 574         print "Self-test complete.";
 575         self.monitorclocking();
 576     def monitorecho(self):
 577         data="The quick brown fox jumped over the lazy dog.";
 578         self.writecmd(self.MONITORAPP,0x81,len(data),data);
 579         if self.data!=data:
 580             print "Comm error recognized by monitorecho(), got:\n%s" % self.data;
 581             return 0;
 582         return 1;
 583
 584     def monitor_info(self):
 585         print "GoodFET with %s MCU" % self.infostring();
 586         print "Clocked at %s" % self.monitorclocking();
 587         return 1;
 588
 589     def monitor_list_apps(self, full=False):
 590         self.monitor_info()
 591         old_value = self.besilent
 592         self.besilent = True    # turn off automatic call to readcmd
 593         self.writecmd(self.MONITORAPP, 0x82, 1, [int(full)]);
 594         self.besilent = old_value
 595
 596         # read the build date string
 597         self.readcmd()
 598         print "Build Date: %s" % self.data
 599         print "Firmware apps:"
 600         while True:
 601             self.readcmd()
 602             if self.count == 0:
 603                 break
 604             print self.data
 605         return 1;
 606
 607     def monitorclocking(self):
 608         """Return the 16-bit clocking value."""
 609         return "0x%04x" % self.monitorgetclock();
 610
 611     def monitorsetclock(self,clock):
 612         """Set the clocking value."""
 613         self.MONpoke16(0x56, clock);
 614     def monitorgetclock(self):
 615         """Get the clocking value."""
 616         if(os.environ.get("platform")=='arduino' or os.environ.get("board")=='arduino'):
 617             return 0xDEAD;
 618         #Check for MSP430 before peeking this.
 619         return self.MONpeek16(0x56);
 620     # The following functions ought to be implemented in
 621     # every client.
 622
 623     def infostring(self):
 624         if(os.environ.get("platform")=='arduino' or os.environ.get("board")=='arduino'):
 625             return "Arduino";
 626         else:
 627             a=self.MONpeek8(0xff0);
 628             b=self.MONpeek8(0xff1);
 629             return "%02x%02x" % (a,b);
 630     def lock(self):
 631         print "Locking Unsupported.";
 632     def erase(self):
 633         print "Erasure Unsupported.";
 634     def setup(self):
 635         return;
 636     def start(self):
 637         return;
 638     def test(self):
 639         print "Unimplemented.";
 640         return;
 641     def status(self):
 642         print "Unimplemented.";
 643         return;
 644     def halt(self):
 645         print "Unimplemented.";
 646         return;
 647     def resume(self):
 648         print "Unimplemented.";
 649         return;
 650     def getpc(self):
 651         print "Unimplemented.";
 652         return 0xdead;
 653     def flash(self,file):
 654         """Flash an intel hex file to code memory."""
 655         print "Flash not implemented.";
 656     def dump(self,file,start=0,stop=0xffff):
 657         """Dump an intel hex file from code memory."""
 658         print "Dump not implemented.";
 659     def peek32(self,address, memory="vn"):
 660         """Peek 32 bits."""
 661         return (self.peek16(address,memory)+
 662                 (self.peek16(address+2,memory)<<16));
 663     def peek16(self,address, memory="vn"):
 664         """Peek 16 bits of memory."""
 665         return (self.peek8(address,memory)+
 666                 (self.peek8(address+1,memory)<<8));
 667     def peek8(self,address, memory="vn"):
 668         """Peek a byte of memory."""
 669         return self.MONpeek8(address); #monitor
 670     def peekblock(self,address,length,memory="vn"):
 671         """Return a block of data."""
 672         data=range(0,length);
 673         for foo in range(0,length):
 674             data[foo]=self.peek8(address+foo,memory);
 675         return data;
 676     def pokeblock(self,address,bytes,memory="vn"):
 677         """Poke a block of a data into memory at an address."""
 678         for foo in bytes:
 679             self.pokebyte(address,foo,memory);
 680             address=address+1;
 681         return;
 682     def loadsymbols(self):
 683         """Load symbols from a file."""
 684         return;