git.rot13.org Git - goodfet/blob - client/GoodFETCC.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;
   9 import binascii;
  10
  11 from GoodFET import GoodFET;
  12 from intelhex import IntelHex;
  13
  14 class GoodFETCC(GoodFET):
  15     """A GoodFET variant for use with Chipcon 8051 Zigbeema SoC."""
  16     def CChaltcpu(self):
  17         """Halt the CPU."""
  18         self.writecmd(0x30,0x86,0,self.data);
  19     def CCreleasecpu(self):
  20         """Resume the CPU."""
  21         self.writecmd(0x30,0x87,0,self.data);
  22     def CCtest(self):
  23         self.CCreleasecpu();
  24         self.CChaltcpu();
  25         #print "Status: %s" % self.CCstatusstr();
  26
  27         #Grab ident three times, should be equal.
  28         ident1=self.CCident();
  29         ident2=self.CCident();
  30         ident3=self.CCident();
  31         if(ident1!=ident2 or ident2!=ident3):
  32             print "Error, repeated ident attempts unequal."
  33             print "%04x, %04x, %04x" % (ident1, ident2, ident3);
  34
  35         #Single step, printing PC.
  36         print "Tracing execution at startup."
  37         for i in range(1,15):
  38             pc=self.CCgetPC();
  39             byte=self.CCpeekcodebyte(i);
  40             #print "PC=%04x, %02x" % (pc, byte);
  41             self.CCstep_instr();
  42
  43         print "Verifying that debugging a NOP doesn't affect the PC."
  44         for i in range(1,15):
  45             pc=self.CCgetPC();
  46             self.CCdebuginstr([0x00]);
  47             if(pc!=self.CCgetPC()):
  48                 print "ERROR: PC changed during CCdebuginstr([NOP])!";
  49
  50         print "Checking pokes to XRAM."
  51         for i in range(0xf000,0xf020):
  52             self.CCpokedatabyte(i,0xde);
  53             if(self.CCpeekdatabyte(i)!=0xde):
  54                 print "Error in XDATA at 0x%04x" % i;
  55
  56         #print "Status: %s." % self.CCstatusstr();
  57         #Exit debugger
  58         self.stop();
  59         print "Done.";
  60
  61     def setup(self):
  62         """Move the FET into the CC2430/CC2530 application."""
  63         #print "Initializing Chipcon.";
  64         self.writecmd(0x30,0x10,0,self.data);
  65     def CCrd_config(self):
  66         """Read the config register of a Chipcon."""
  67         self.writecmd(0x30,0x82,0,self.data);
  68         return ord(self.data[0]);
  69     def CCwr_config(self,config):
  70         """Write the config register of a Chipcon."""
  71         self.writecmd(0x30,0x81,1,[config&0xFF]);
  72     def CClockchip(self):
  73         """Set the flash lock bit in info mem."""
  74         self.writecmd(0x30, 0x9A, 0, None);
  75
  76
  77     CCversions={0x0100:"CC1110",
  78                 0x8500:"CC2430",
  79                 0x8900:"CC2431",
  80                 0x8100:"CC2510",
  81                 0x9100:"CC2511",
  82                 0xA500:"CC2530", #page 52 of SWRU191
  83                 0xB500:"CC2531",
  84                 0xFF00:"CCmissing"};
  85     CCpagesizes={0x01: 1024, #"CC1110",
  86                 0x85: 2048, #"CC2430",
  87                 0x89: 2048, #"CC2431",
  88                 0x81: 1024, #"CC2510",
  89                 0x91: 1024, #"CC2511",
  90                 0xA5: 2048, #"CC2530", #page 52 of SWRU191
  91                 0xB5: 2048, #"CC2531",
  92                 0xFF: 0    } #"CCmissing"};
  93
  94     def CCidentstr(self):
  95         ident=self.CCident();
  96         chip=self.CCversions.get(ident&0xFF00);
  97         return "%s/r%02x" % (chip, ident&0xFF);
  98     def CCident(self):
  99         """Get a chipcon's ID."""
 100         self.writecmd(0x30,0x8B,0,None);
 101         chip=ord(self.data[0]);
 102         rev=ord(self.data[1]);
 103         return (chip<<8)+rev;
 104     def CCpagesize(self):
 105         """Get a chipcon's ID."""
 106         self.writecmd(0x30,0x8B,0,None);
 107         chip=ord(self.data[0]);
 108
 109         return self.CCpagesizes.get(chip);
 110     def CCgetPC(self):
 111         """Get a chipcon's PC."""
 112         self.writecmd(0x30,0x83,0,None);
 113         hi=ord(self.data[0]);
 114         lo=ord(self.data[1]);
 115         return (hi<<8)+lo;
 116     def CCcmd(self,phrase):
 117         self.writecmd(0x30,0x00,len(phrase),phrase);
 118         val=ord(self.data[0]);
 119         print "Got %02x" % val;
 120         return val;
 121     def CCdebuginstr(self,instr):
 122         self.writecmd(0x30,0x88,len(instr),instr);
 123         return ord(self.data[0]);
 124     def CCpeekcodebyte(self,adr):
 125         """Read the contents of code memory at an address."""
 126         self.data=[adr&0xff, (adr&0xff00)>>8];
 127         self.writecmd(0x30,0x90,2,self.data);
 128         return ord(self.data[0]);
 129     def CCpeekdatabyte(self,adr):
 130         """Read the contents of data memory at an address."""
 131         self.data=[adr&0xff, (adr&0xff00)>>8];
 132         self.writecmd(0x30,0x91, 2, self.data);
 133         return ord(self.data[0]);
 134     def CCpeekirambyte(self,adr):
 135         """Read the contents of IRAM at an address."""
 136         self.data=[adr&0xff];
 137         self.writecmd(0x30,0x02, 1, self.data);
 138         return ord(self.data[0]);
 139     def CCpeekiramword(self,adr):
 140         """Read the little-endian contents of IRAM at an address."""
 141         return self.CCpeekirambyte(adr)+(
 142             self.CCpeekirambyte(adr+1)<<8);
 143     def CCpokeiramword(self,adr,val):
 144         self.CCpokeirambyte(adr,val&0xff);
 145         self.CCpokeirambyte(adr+1,(val>>8)&0xff);
 146     def CCpokeirambyte(self,adr,val):
 147         """Write the contents of IRAM at an address."""
 148         self.data=[adr&0xff, val&0xff];
 149         self.writecmd(0x30,0x02, 2, self.data);
 150         return ord(self.data[0]);
 151
 152     def CCpokedatabyte(self,adr,val):
 153         """Write a byte to data memory."""
 154         self.data=[adr&0xff, (adr&0xff00)>>8, val];
 155         self.writecmd(0x30, 0x92, 3, self.data);
 156         return ord(self.data[0]);
 157     def CCchiperase(self):
 158         """Erase all of the target's memory."""
 159         self.writecmd(0x30,0x80,0,None);
 160     def CCstatus(self):
 161         """Check the status."""
 162         self.writecmd(0x30,0x84,0,None);
 163         return ord(self.data[0])
 164     #Same as CC2530
 165     CCstatusbits={0x80 : "erase_busy",
 166                   0x40 : "pcon_idle",
 167                   0x20 : "cpu_halted",
 168                   0x10 : "pm0",
 169                   0x08 : "halt_status",
 170                   0x04 : "locked",
 171                   0x02 : "oscstable",
 172                   0x01 : "overflow"
 173                   };
 174     CCconfigbits={0x20 : "soft_power_mode",   #new for CC2530
 175                   0x08 : "timers_off",
 176                   0x04 : "dma_pause",
 177                   0x02 : "timer_suspend",
 178                   0x01 : "sel_flash_info_page" #stricken from CC2530
 179                   };
 180
 181     def CCstatusstr(self):
 182         """Check the status as a string."""
 183         status=self.CCstatus();
 184         str="";
 185         i=1;
 186         while i<0x100:
 187             if(status&i):
 188                 str="%s %s" %(self.CCstatusbits[i],str);
 189             i*=2;
 190         return str;
 191     def start(self):
 192         """Start debugging."""
 193         self.writecmd(0x30,0x20,0,self.data);
 194         ident=self.CCidentstr();
 195         print "Target identifies as %s." % ident;
 196         #print "Status: %s." % self.CCstatusstr();
 197         self.CCreleasecpu();
 198         self.CChaltcpu();
 199         #print "Status: %s." % self.CCstatusstr();
 200
 201     def stop(self):
 202         """Stop debugging."""
 203         self.writecmd(0x30,0x21,0,self.data);
 204     def CCstep_instr(self):
 205         """Step one instruction."""
 206         self.writecmd(0x30,0x89,0,self.data);
 207     def CCeraseflashbuffer(self):
 208         """Erase the 2kB flash buffer"""
 209         self.writecmd(0x30,0x99);
 210     def CCflashpage(self,adr):
 211         """Flash 2kB a page of flash from 0xF000 in XDATA"""
 212         data=[adr&0xFF,
 213               (adr>>8)&0xFF,
 214               (adr>>16)&0xFF,
 215               (adr>>24)&0xFF];
 216         print "Flashing buffer to 0x%06x" % adr;
 217         self.writecmd(0x30,0x95,4,data);