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