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
  51         #print "Status: %s." % self.CCstatusstr();
  52         #Exit debugger
  53         self.stop();
  54         print "Done.";
  55
  56     def setup(self):
  57         """Move the FET into the CC2430/CC2530 application."""
  58         #print "Initializing Chipcon.";
  59         self.writecmd(0x30,0x10,0,self.data);
  60     def CCrd_config(self):
  61         """Read the config register of a Chipcon."""
  62         self.writecmd(0x30,0x82,0,self.data);
  63         return ord(self.data[0]);
  64     def CCwr_config(self,config):
  65         """Write the config register of a Chipcon."""
  66         self.writecmd(0x30,0x81,1,[config&0xFF]);
  67     def CClockchip(self):
  68         """Set the flash lock bit in info mem."""
  69         self.writecmd(0x30, 0x9A, 0, None);
  70
  71
  72     CCversions={0x0100:"CC1110",
  73                 0x8500:"CC2430",
  74                 0x8900:"CC2431",
  75                 0x8100:"CC2510",
  76                 0x9100:"CC2511",
  77                 0xA500:"CC2530", #page 52 of SWRU191
  78                 0xB500:"CC2531",
  79                 0xFF00:"CCmissing"};
  80     def CCidentstr(self):
  81         ident=self.CCident();
  82         chip=self.CCversions.get(ident&0xFF00);
  83         return "%s/r%02x" % (chip, ident&0xFF);
  84     def CCident(self):
  85         """Get a chipcon's ID."""
  86         self.writecmd(0x30,0x8B,0,None);
  87         chip=ord(self.data[0]);
  88         rev=ord(self.data[1]);
  89         return (chip<<8)+rev;
  90     def CCgetPC(self):
  91         """Get a chipcon's PC."""
  92         self.writecmd(0x30,0x83,0,None);
  93         hi=ord(self.data[0]);
  94         lo=ord(self.data[1]);
  95         return (hi<<8)+lo;
  96     def CCcmd(self,phrase):
  97         self.writecmd(0x30,0x00,len(phrase),phrase);
  98         val=ord(self.data[0]);
  99         print "Got %02x" % val;
 100         return val;
 101     def CCdebuginstr(self,instr):
 102         self.writecmd(0x30,0x88,len(instr),instr);
 103         return ord(self.data[0]);
 104     def CCpeekcodebyte(self,adr):
 105         """Read the contents of code memory at an address."""
 106         self.data=[adr&0xff, (adr&0xff00)>>8];
 107         self.writecmd(0x30,0x90,2,self.data);
 108         return ord(self.data[0]);
 109     def CCpeekdatabyte(self,adr):
 110         """Read the contents of data memory at an address."""
 111         self.data=[adr&0xff, (adr&0xff00)>>8];
 112         self.writecmd(0x30,0x91, 2, self.data);
 113         return ord(self.data[0]);
 114     def CCpeekirambyte(self,adr):
 115         """Read the contents of IRAM at an address."""
 116         self.data=[adr&0xff];
 117         self.writecmd(0x30,0x02, 1, self.data);
 118         return ord(self.data[0]);
 119     def CCpeekiramword(self,adr):
 120         """Read the little-endian contents of IRAM at an address."""
 121         return self.CCpeekirambyte(adr)+(
 122             self.CCpeekirambyte(adr+1)<<8);
 123     def CCpokeiramword(self,adr,val):
 124         self.CCpokeirambyte(adr,val&0xff);
 125         self.CCpokeirambyte(adr+1,(val>>8)&0xff);
 126     def CCpokeirambyte(self,adr,val):
 127         """Write the contents of IRAM at an address."""
 128         self.data=[adr&0xff, val&0xff];
 129         self.writecmd(0x30,0x02, 2, self.data);
 130         return ord(self.data[0]);
 131
 132     def CCpokedatabyte(self,adr,val):
 133         """Write a byte to data memory."""
 134         self.data=[adr&0xff, (adr&0xff00)>>8, val];
 135         self.writecmd(0x30, 0x92, 3, self.data);
 136         return ord(self.data[0]);
 137     def CCchiperase(self):
 138         """Erase all of the target's memory."""
 139         self.writecmd(0x30,0x80,0,None);
 140     def CCstatus(self):
 141         """Check the status."""
 142         self.writecmd(0x30,0x84,0,None);
 143         return ord(self.data[0])
 144     #Same as CC2530
 145     CCstatusbits={0x80 : "erase_busy",
 146                   0x40 : "pcon_idle",
 147                   0x20 : "cpu_halted",
 148                   0x10 : "pm0",
 149                   0x08 : "halt_status",
 150                   0x04 : "locked",
 151                   0x02 : "oscstable",
 152                   0x01 : "overflow"
 153                   };
 154     CCconfigbits={0x20 : "soft_power_mode",   #new for CC2530
 155                   0x08 : "timers_off",
 156                   0x04 : "dma_pause",
 157                   0x02 : "timer_suspend",
 158                   0x01 : "sel_flash_info_page" #stricken from CC2530
 159                   };
 160
 161     def CCstatusstr(self):
 162         """Check the status as a string."""
 163         status=self.CCstatus();
 164         str="";
 165         i=1;
 166         while i<0x100:
 167             if(status&i):
 168                 str="%s %s" %(self.CCstatusbits[i],str);
 169             i*=2;
 170         return str;
 171     def start(self):
 172         """Start debugging."""
 173         self.writecmd(0x30,0x20,0,self.data);
 174         ident=self.CCidentstr();
 175         print "Target identifies as %s." % ident;
 176         #print "Status: %s." % self.CCstatusstr();
 177         self.CCreleasecpu();
 178         self.CChaltcpu();
 179         #print "Status: %s." % self.CCstatusstr();
 180
 181     def stop(self):
 182         """Stop debugging."""
 183         self.writecmd(0x30,0x21,0,self.data);
 184     def CCstep_instr(self):
 185         """Step one instruction."""
 186         self.writecmd(0x30,0x89,0,self.data);
 187     def CCeraseflashbuffer(self):
 188         """Erase the 2kB flash buffer"""
 189         self.writecmd(0x30,0x99);
 190     def CCflashpage(self,adr):
 191         """Flash 2kB a page of flash from 0xF000 in XDATA"""
 192         data=[adr&0xFF,
 193               (adr>>8)&0xFF,
 194               (adr>>16)&0xFF,
 195               (adr>>24)&0xFF];
 196         print "Flashing buffer to 0x%06x" % adr;
 197         self.writecmd(0x30,0x95,4,data);