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.CCstop();
  54         print "Done.";
  55
  56     def CCsetup(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
  68     CCversions={0x0100:"CC1110",
  69                 0x8500:"CC2430",
  70                 0x8900:"CC2431",
  71                 0x8100:"CC2510",
  72                 0x9100:"CC2511",
  73                 0xFF00:"CCmissing"};
  74     def CCidentstr(self):
  75         ident=self.CCident();
  76         chip=self.CCversions.get(ident&0xFF00);
  77         return "%s/r%02x" % (chip, ident&0xFF);
  78     def CCident(self):
  79         """Get a chipcon's ID."""
  80         self.writecmd(0x30,0x8B,0,None);
  81         chip=ord(self.data[0]);
  82         rev=ord(self.data[1]);
  83         return (chip<<8)+rev;
  84     def CCgetPC(self):
  85         """Get a chipcon's PC."""
  86         self.writecmd(0x30,0x83,0,None);
  87         hi=ord(self.data[0]);
  88         lo=ord(self.data[1]);
  89         return (hi<<8)+lo;
  90     def CCdebuginstr(self,instr):
  91         self.writecmd(0x30,0x88,len(instr),instr);
  92         return ord(self.data[0]);
  93     def CCpeekcodebyte(self,adr):
  94         """Read the contents of code memory at an address."""
  95         self.data=[adr&0xff, (adr&0xff00)>>8];
  96         self.writecmd(0x30,0x90,2,self.data);
  97         return ord(self.data[0]);
  98     def CCpeekdatabyte(self,adr):
  99         """Read the contents of data memory at an address."""
 100         self.data=[adr&0xff, (adr&0xff00)>>8];
 101         self.writecmd(0x30,0x91, 2, self.data);
 102         return ord(self.data[0]);
 103     def CCpokedatabyte(self,adr,val):
 104         """Write a byte to data memory."""
 105         self.data=[adr&0xff, (adr&0xff00)>>8, val];
 106         self.writecmd(0x30, 0x92, 3, self.data);
 107         return ord(self.data[0]);
 108     def CCchiperase(self):
 109         """Erase all of the target's memory."""
 110         self.writecmd(0x30,0x80,0,None);
 111     def CCstatus(self):
 112         """Check the status."""
 113         self.writecmd(0x30,0x84,0,None);
 114         return ord(self.data[0])
 115     CCstatusbits={0x80 : "erased",
 116                   0x40 : "pcon_idle",
 117                   0x20 : "cpu_halted",
 118                   0x10 : "pm0",
 119                   0x08 : "halt_status",
 120                   0x04 : "locked",
 121                   0x02 : "oscstable",
 122                   0x01 : "overflow"};
 123     def CCstatusstr(self):
 124         """Check the status as a string."""
 125         status=self.CCstatus();
 126         str="";
 127         i=1;
 128         while i<0x100:
 129             if(status&i):
 130                 str="%s %s" %(self.CCstatusbits[i],str);
 131             i*=2;
 132         return str;
 133     def CCstart(self):
 134         """Start debugging."""
 135         self.writecmd(0x30,0x20,0,self.data);
 136         ident=self.CCidentstr();
 137         print "Target identifies as %s." % ident;
 138         #print "Status: %s." % self.CCstatusstr();
 139         self.CCreleasecpu();
 140         self.CChaltcpu();
 141         #print "Status: %s." % self.CCstatusstr();
 142
 143     def CCstop(self):
 144         """Stop debugging."""
 145         self.writecmd(0x30,0x21,0,self.data);
 146     def CCstep_instr(self):
 147         """Step one instruction."""
 148         self.writecmd(0x30,0x89,0,self.data);
 149     def CCeraseflashbuffer(self):
 150         """Erase the 2kB flash buffer"""
 151         self.writecmd(0x30,0x99);
 152     def CCflashpage(self,adr):
 153         """Flash 2kB a page of flash from 0xF000 in XDATA"""
 154         data=[adr&0xFF,
 155               (adr>>8)&0xFF,
 156               (adr>>16)&0xFF,
 157               (adr>>24)&0xFF];
 158         print "Flashing buffer to 0x%06x" % adr;
 159         self.writecmd(0x30,0x95,4,data);