#
# (C) 2009 Travis Goodspeed <travis at radiantmachines.com>
#
-# This code is ugly as sin, for bootstrapping the firmware only.
-# Rewrite cleanly as soon as is convenient.
+# This code is being rewritten and refactored. You've been warned!
import sys, time, string, cStringIO, struct, glob, serial, os;
class GoodFET:
+ """GoodFET Client Library"""
def __init__(self, *args, **kargs):
self.data=[0];
def timeout(self):
def serInit(self, port=None):
"""Open the serial port"""
- if port is None:
+ if port is None and os.environ.get("GOODFET")!=None:
glob_list = glob.glob(os.environ.get("GOODFET"));
if len(glob_list) > 0:
port = glob_list[0];
if(self.verb!=0x7F):
print "Verb %02x is wrong. Incorrect firmware?" % self.verb;
#print "Connected."
- def writecmd(self, app, verb, count, data=[], blocks=1):
+ def writecmd(self, app, verb, count=0, data=[], blocks=1):
"""Write a command and some data to the GoodFET."""
self.serialport.write(chr(app));
self.serialport.write(chr(verb));
print "Self-test complete.";
+
+
+ def I2Csetup(self):
+ """Move the FET into the I2C application."""
+ self.writecmd(0x02,0x10,0,self.data); #SPI/SETUP
+ def I2Cstart(self):
+ """Start an I2C transaction."""
+ self.writecmd(0x02,0x20,0,self.data); #SPI/SETUP
+ def I2Cstop(self):
+ """Stop an I2C transaction."""
+ self.writecmd(0x02,0x21,0,self.data); #SPI/SETUP
+ def I2Cread(self,len=1):
+ """Read len bytes by I2C."""
+ self.writecmd(0x02,0x00,1,[len]); #SPI/SETUP
+ return self.data;
+ def I2Cwrite(self,bytes):
+ """Write bytes by I2C."""
+ self.writecmd(0x02,0x01,len(bytes),bytes); #SPI/SETUP
+ return ord(self.data[0]);
+class GoodFETSPI(GoodFET):
def SPIsetup(self):
- """Moved the FET into the SPI application."""
+ """Move the FET into the SPI application."""
self.writecmd(0x01,0x10,0,self.data); #SPI/SETUP
-
def SPItrans8(self,byte):
"""Read and write 8 bits by SPI."""
self.data=data;
self.writecmd(0x01,0x00,len(data),data);
return self.data;
-
+
+class GoodFETSPIFlash(GoodFETSPI):
JEDECmanufacturers={0xFF: "MISSING",
0xEF: "Winbond",
0xC2: "MXIC",
0x12: 0x040000,
0x11: 0x020000}
JEDECsize=0;
+
def SPIjedec(self):
"""Grab an SPI Flash ROM's JEDEC bytes."""
data=[0x9f, 0, 0, 0];
0];
self.SPItrans(data);
return ord(self.data[4]);
-# def SPIpeekblock(self,adr):
-# """Grab a block from an SPI Flash ROM. Block size is unknown"""
-# data=[(adr&0xFF0000)>>16,
-# (adr&0xFF00)>>8,
-# adr&0xFF];
-
-# self.writecmd(0x01,0x02,3,data);
-# return self.data;
def SPIpeekblock(self,adr,blocks=1):
"""Grab a few block from an SPI Flash ROM. Block size is unknown"""
data=[(adr&0xFF0000)>>16,
if device==0:
device="???"
return "%s %s" % (man,device);
- def MSP430setup(self):
- """Move the FET into the MSP430 JTAG application."""
- print "Initializing MSP430.";
- self.writecmd(0x11,0x10,0,self.data);
- def I2Csetup(self):
- """Move the FET into the I2C application."""
- self.writecmd(0x02,0x10,0,self.data); #SPI/SETUP
- def I2Cstart(self):
- """Start an I2C transaction."""
- self.writecmd(0x02,0x20,0,self.data); #SPI/SETUP
- def I2Cstop(self):
- """Stop an I2C transaction."""
- self.writecmd(0x02,0x21,0,self.data); #SPI/SETUP
- def I2Cread(self,len=1):
- """Read len bytes by I2C."""
- self.writecmd(0x02,0x00,1,[len]); #SPI/SETUP
- return self.data;
- def I2Cwrite(self,bytes):
- """Write bytes by I2C."""
- self.writecmd(0x02,0x01,len(bytes),bytes); #SPI/SETUP
- return ord(self.data[0]);
+class GoodFETCC(GoodFET):
+ """A GoodFET variant for use with Chipcon 8051 Zigbe SoC."""
+ def CChaltcpu(self):
+ """Halt the CPU."""
+ self.writecmd(0x30,0x86,0,self.data);
+ def CCreleasecpu(self):
+ """Resume the CPU."""
+ self.writecmd(0x30,0x87,0,self.data);
+ def CCtest(self):
+ self.CCreleasecpu();
+ self.CChaltcpu();
+ #print "Status: %s" % self.CCstatusstr();
+
+ #Grab ident three times, should be equal.
+ ident1=self.CCident();
+ ident2=self.CCident();
+ ident3=self.CCident();
+ if(ident1!=ident2 or ident2!=ident3):
+ print "Error, repeated ident attempts unequal."
+ print "%04x, %04x, %04x" % (ident1, ident2, ident3);
+
+ #Single step, printing PC.
+ print "Tracing execution at startup."
+ for i in range(1,15):
+ pc=self.CCgetPC();
+ byte=self.CCpeekcodebyte(i);
+ #print "PC=%04x, %02x" % (pc, byte);
+ self.CCstep_instr();
+
+ print "Verifying that debugging a NOP doesn't affect the PC."
+ for i in range(1,15):
+ pc=self.CCgetPC();
+ self.CCdebuginstr([0x00]);
+ if(pc!=self.CCgetPC()):
+ print "ERROR: PC changed during CCdebuginstr([NOP])!";
+
+
+ #print "Status: %s." % self.CCstatusstr();
+ #Exit debugger
+ self.CCstop();
+ print "Done.";
+
def CCsetup(self):
"""Move the FET into the CC2430/CC2530 application."""
#print "Initializing Chipcon.";
def CCdebuginstr(self,instr):
self.writecmd(0x30,0x88,len(instr),instr);
return ord(self.data[0]);
- def MSP430peek(self,adr):
- """Read the contents of memory at an address."""
- self.data=[adr&0xff, (adr&0xff00)>>8];
- self.writecmd(0x11,0x02,2,self.data);
- return ord(self.data[0])+(ord(self.data[1])<<8);
def CCpeekcodebyte(self,adr):
"""Read the contents of code memory at an address."""
self.data=[adr&0xff, (adr&0xff00)>>8];
str="%s %s" %(self.CCstatusbits[i],str);
i*=2;
return str;
- def MSP430poke(self,adr,val):
- """Read the contents of memory at an address."""
- self.data=[adr&0xff, (adr&0xff00)>>8, val&0xff, (val&0xff00)>>8];
- self.writecmd(0x11,0x03,4,self.data);
- return;# ord(self.data[0])+(ord(self.data[1])<<8);
- def MSP430start(self):
- """Start debugging."""
- self.writecmd(0x11,0x20,0,self.data);
- ident=self.MSP430ident();
- print "Target identifies as %04x." % ident;
-
def CCstart(self):
"""Start debugging."""
self.writecmd(0x30,0x20,0,self.data);
def CCstep_instr(self):
"""Step one instruction."""
self.writecmd(0x30,0x89,0,self.data);
- def MSP430stop(self):
- """Stop debugging."""
- self.writecmd(0x11,0x21,0,self.data);
- def MSP430haltcpu(self):
- """Halt the CPU."""
- self.writecmd(0x11,0xA0,0,self.data);
- def MSP430releasecpu(self):
- """Resume the CPU."""
- self.writecmd(0x11,0xA1,0,self.data);
- def CChaltcpu(self):
- """Halt the CPU."""
- self.writecmd(0x30,0x86,0,self.data);
- def CCreleasecpu(self):
- """Resume the CPU."""
- self.writecmd(0x30,0x87,0,self.data);
- def MSP430shiftir8(self,ins):
- """Shift the 8-bit Instruction Register."""
- data=[ins];
- self.writecmd(0x11,0x80,1,data);
- return ord(self.data[0]);
- def MSP430shiftdr16(self,dat):
- """Shift the 16-bit Data Register."""
- data=[dat&0xFF,(dat&0xFF00)>>8];
- self.writecmd(0x11,0x81,2,data);
- return ord(self.data[0])#+(ord(self.data[1])<<8);
- def MSP430setinstrfetch(self):
- """Set the instruction fetch mode."""
- self.writecmd(0x11,0xC1,0,self.data);
- return self.data[0];
- def MSP430ident(self):
- """Grab self-identification word from 0x0FF0 as big endian."""
- i=self.MSP430peek(0x0ff0);
- return ((i&0xFF00)>>8)+((i&0xFF)<<8)
- def MSP430test(self):
- """Test MSP430 JTAG. Requires that a chip be attached."""
- if self.MSP430ident()==0xffff:
- print "Is anything connected?";
- print "Testing RAM.";
- temp=self.MSP430peek(0x0200);
- self.MSP430poke(0x0200,0xdead);
- if(self.MSP430peek(0x0200)!=0xdead):
- print "Poke of 0x0200 did not set to 0xDEAD properly.";
- return;
- self.MSP430poke(0x0200,temp); #restore old value.
- def MSP430flashtest(self):
- self.MSP430masserase();
- i=0x2500;
- while(i<0xFFFF):
- if(self.MSP430peek(i)!=0xFFFF):
- print "ERROR: Unerased flash at %04x."%i;
- self.MSP430writeflash(i,0xDEAD);
- i+=2;
- def MSP430masserase(self):
- """Erase MSP430 flash memory."""
- self.writecmd(0x11,0xE3,0,None);
- def MSP430writeflash(self,adr,val):
- """Write a word of flash memory."""
- if(self.MSP430peek(adr)!=0xFFFF):
- print "FLASH ERROR: %04x not clear." % adr;
- data=[adr&0xFF,(adr&0xFF00)>>8,val&0xFF,(val&0xFF00)>>8];
- self.writecmd(0x11,0xE1,4,data);
- rval=ord(self.data[0])+(ord(self.data[1])<<8);
- if(val!=rval):
- print "FLASH WRITE ERROR AT %04x. Found %04x, wrote %04x." % (adr,rval,val);
-
- def MSP430dumpbsl(self):
- self.MSP430dumpmem(0xC00,0xfff);
- def MSP430dumpallmem(self):
- self.MSP430dumpmem(0x200,0xffff);
- def MSP430dumpmem(self,begin,end):
- i=begin;
- while i<end:
- print "%04x %04x" % (i, self.MSP430peek(i));
- i+=2;
- def CCtest(self):
- self.CCreleasecpu();
- self.CChaltcpu();
- #print "Status: %s" % self.CCstatusstr();
-
- #Grab ident three times, should be equal.
- ident1=self.CCident();
- ident2=self.CCident();
- ident3=self.CCident();
- if(ident1!=ident2 or ident2!=ident3):
- print "Error, repeated ident attempts unequal."
- print "%04x, %04x, %04x" % (ident1, ident2, ident3);
-
- #Single step, printing PC.
- print "Tracing execution at startup."
- for i in range(1,15):
- pc=self.CCgetPC();
- byte=self.CCpeekcodebyte(i);
- #print "PC=%04x, %02x" % (pc, byte);
- self.CCstep_instr();
-
- print "Verifying that debugging a NOP doesn't affect the PC."
- for i in range(1,15):
- pc=self.CCgetPC();
- self.CCdebuginstr([0x00]);
- if(pc!=self.CCgetPC()):
- print "ERROR: PC changed during CCdebuginstr([NOP])!";
-
-
- #print "Status: %s." % self.CCstatusstr();
- #Exit debugger
- self.CCstop();
- print "Done.";
+
projects / goodfet / blobdiff