#!/usr/bin/env python
# GoodFET ARM Client Library
#
#!/usr/bin/env python
# GoodFET ARM Client Library
#
-#
-# Good luck with alpha / beta code.
# Contributions and bug reports welcome.
#
# todo:
# Contributions and bug reports welcome.
#
# todo:
# * ensure correct PC handling
# * flash manipulation (probably need to get the specific chip for this one)
# * set security (chip-specific)
# * ensure correct PC handling
# * flash manipulation (probably need to get the specific chip for this one)
# * set security (chip-specific)
-# * -ancilary/faster- ldm/stm versions of memory access (had trouble in past, possibly also due to haphazard abuse of DCLK)
-#
-# fixme now stuff:
-# * thumb mode get/set_register - DONE!
-# * thumb to arm mode - DONE!
-# * rethink the whole python/c trade-off for cross-python session debugging
import sys, binascii, struct, time
import atlasutils.smartprint as asp
import sys, binascii, struct, time
import atlasutils.smartprint as asp
return retval
def ARMidentstr(self):
ident=self.ARMident()
return retval
def ARMidentstr(self):
ident=self.ARMident()
- ver = ident >> 28
- partno = (ident >> 12) & 0x10
- mfgid = ident & 0xfff
- return "mfg: %x\npartno: %x\nver: %x\n(%x)" % (ver, partno, mfgid, ident);
+ ver = (ident >> 28)
+ partno = (ident >> 12) & 0xffff
+ mfgid = (ident >> 1) & 0x7ff
+ return "Chip IDCODE: 0x%x\n\tver: %x\n\tpartno: %x\n\tmfgid: %x\n" % (ident, ver, partno, mfgid);
def ARMeice_write(self, reg, val):
data = chop(val,4)
data.extend([reg])
def ARMeice_write(self, reg, val):
data = chop(val,4)
data.extend([reg])
instr.extend([bkpt])
self.writecmd(0x13,DEBUG_INSTR,len(instr),instr)
return (self.data)
instr.extend([bkpt])
self.writecmd(0x13,DEBUG_INSTR,len(instr),instr)
return (self.data)
- def ARM_nop(self, bkpt):
+ def ARM_nop(self, bkpt=0):
if self.status() & DBG_TBIT:
return self.ARMdebuginstr(THUMB_INSTR_NOP, bkpt)
return self.ARMdebuginstr(ARM_INSTR_NOP, bkpt)
if self.status() & DBG_TBIT:
return self.ARMdebuginstr(THUMB_INSTR_NOP, bkpt)
return self.ARMdebuginstr(ARM_INSTR_NOP, bkpt)
print hex(self.ARMget_register(15))
print hex(self.ARMchain0(self.storedPC,self.flags)[0])
self.ARMdebuginstr(THUMB_INSTR_B_IMM | (0x7fc07fc),0)
print hex(self.ARMget_register(15))
print hex(self.ARMchain0(self.storedPC,self.flags)[0])
self.ARMdebuginstr(THUMB_INSTR_B_IMM | (0x7fc07fc),0)
output = []
count = wordcount
while (wordcount > 0):
output = []
count = wordcount
while (wordcount > 0):
+ if (wordcount%64 == 0): sys.stderr.write(".")
count = (wordcount, 0xe)[wordcount>0xd]
bitmask = LDM_BITMASKS[count]
self.ARMset_register(14,adr)
count = (wordcount, 0xe)[wordcount>0xd]
bitmask = LDM_BITMASKS[count]
self.ARMset_register(14,adr)
regs = self.ARMget_registers()
wordcount = len(wordarray)
while (wordcount > 0):
regs = self.ARMget_registers()
wordcount = len(wordarray)
while (wordcount > 0):
+ if (wordcount%64 == 0): sys.stderr.write(".")
count = (wordcount, 0xe)[wordcount>0xd]
bitmask = LDM_BITMASKS[count]
self.ARMset_register(14,adr)
count = (wordcount, 0xe)[wordcount>0xd]
bitmask = LDM_BITMASKS[count]
self.ARMset_register(14,adr)
- print len(wordarray),bin(bitmask)
+ #print len(wordarray),bin(bitmask)
self.ARMset_registers(wordarray[:count],bitmask)
self.ARM_nop(1)
self.ARMdebuginstr(ARM_INSTR_STMIA_R14_r0_rx | bitmask ,0)
self.ARMset_registers(wordarray[:count],bitmask)
self.ARM_nop(1)
self.ARMdebuginstr(ARM_INSTR_STMIA_R14_r0_rx | bitmask ,0)
wordarray = wordarray[count:]
wordcount -= count
adr += count*4
wordarray = wordarray[count:]
wordcount -= count
adr += count*4
# FIXME: handle the rest of the wordcount here.
def ARMwriteMem(self, adr, wordarray):
r0 = self.ARMget_register(0); # store R0 and R1
# FIXME: handle the rest of the wordcount here.
def ARMwriteMem(self, adr, wordarray):
r0 = self.ARMget_register(0); # store R0 and R1
self.ARM_nop(0)
self.ARMrestart()
self.ARMwaitDBG()
self.ARM_nop(0)
self.ARMrestart()
self.ARMwaitDBG()
- print hex(self.ARMget_register(1))
+ print >>sys.stderr,hex(self.ARMget_register(1))
self.ARMset_register(1, r1); # restore R0 and R1
self.ARMset_register(0, r0);
self.ARMset_register(1, r1); # restore R0 and R1
self.ARMset_register(0, r0);
bulk = chop(address,4)
bulk.extend(chop(bits,8))
bulk.extend(chop(data,4))
bulk = chop(address,4)
bulk.extend(chop(bits,8))
bulk.extend(chop(data,4))
+ print >>sys.stderr,(repr(bulk))
self.writecmd(0x13,CHAIN0,16,bulk)
d1,b1,a1 = struct.unpack("<LQL",self.data)
return (a1,b1,d1)
def start(self):
"""Start debugging."""
self.writecmd(0x13,START,0,self.data)
self.writecmd(0x13,CHAIN0,16,bulk)
d1,b1,a1 = struct.unpack("<LQL",self.data)
return (a1,b1,d1)
def start(self):
"""Start debugging."""
self.writecmd(0x13,START,0,self.data)
+ print >>sys.stderr,"Identifying Target:"
- print "Target identifies as %s." % ident
- print "Debug Status: %s." % self.statusstr()
- #print "System State: %x." % self.ARMget_regCPSRstr()
+ print >>sys.stderr,ident
+ print >>sys.stderr,"Debug Status:\t%s\n" % self.statusstr()
+
def stop(self):
"""Stop debugging."""
self.writecmd(0x13,STOP,0,self.data)
def stop(self):
"""Stop debugging."""
self.writecmd(0x13,STOP,0,self.data)
self.ARMsetPC(PROGGYBASE)
self.release()
# FIXME: use DCC to upload the new firmware
self.ARMsetPC(PROGGYBASE)
self.release()
# FIXME: use DCC to upload the new firmware
+
+ def clearFlash(self):
+ pass
+
+ def readPages(self, addr, pagecount, pagesz=(1024*1024)):
+ global pages;
+ pages = []
+ for page in xrange(pagecount):
+ pages.append(self.ARMreadChunk(addr+(pagesz*page), pagesz))
+ return pages
+
#Connect to target
print >>sys.stderr,"Setting up JTAG ARM on goodfet..."
client.setup()
#Connect to target
print >>sys.stderr,"Setting up JTAG ARM on goodfet..."
client.setup()
- print >>sys.stderr,"Starting JTAG ARM on goodfet..."
+ print >>sys.stderr,"Starting JTAG ARM on goodfet...\n\n"
- print "STARTUP: "+repr(client.data)
+ print "STARTUP: %s\n"%repr(client.data)
-print "Don't forget to 'client.stop()' if you want to exit cleanly"
#Connect to target
print >>sys.stderr,"Setting up JTAG ARM on goodfet..."
client.setup()
#Connect to target
print >>sys.stderr,"Setting up JTAG ARM on goodfet..."
client.setup()
- print >>sys.stderr,"Starting JTAG ARM on goodfet..."
+ print >>sys.stderr,"Starting JTAG ARM on goodfet...\n"
- print "STARTUP: "+repr(client.data)
+ print "STARTUP: %s\n"%repr(client.data)
-print "Don't forget to 'client.stop()' if you want to exit cleanly"