mirror of
https://github.com/oliverschmidt/contiki.git
synced 2024-08-17 13:29:10 +00:00
605 lines
23 KiB
Python
Executable File
605 lines
23 KiB
Python
Executable File
#!/usr/bin/env python
|
|
#Parallel JTAG programmer for the MSP430 embedded proccessor.
|
|
#
|
|
#(C) 2002 Chris Liechti <cliechti@gmx.net>
|
|
#this is distributed under a free software license, see license.txt
|
|
#
|
|
#Requires Python 2+ and the binary extension _parjtag.
|
|
|
|
import sys
|
|
import _parjtag
|
|
|
|
VERSION = "1.3"
|
|
|
|
DEBUG = 0 #disable debug messages by default
|
|
|
|
|
|
#frame specific consts
|
|
ERASE_MASS = 2
|
|
ERASE_MAIN = 1
|
|
ERASE_SGMT = 0
|
|
|
|
#states
|
|
FREERUNNING = 0
|
|
STOPPED = 1
|
|
|
|
#Configurations of the MSP430 driver
|
|
VERIFICATION_MODE = 0 #Verify data downloaded to FLASH memories.
|
|
RAMSIZE_OPTION = 1 #Change RAM used to download and program flash blocks
|
|
DEBUG_OPTION = 2 #Set debug level. Enables debug outputs.
|
|
|
|
#enumeration of output formats for uploads
|
|
HEX = 0
|
|
INTELHEX = 1
|
|
BINARY = 2
|
|
|
|
#exceptions
|
|
class JTAGException(Exception): pass
|
|
|
|
#for the use with memread
|
|
def hexdump( (adr, memstr) ):
|
|
"""Print a hex dump of data collected with memread
|
|
arg1: tuple with adress, memory
|
|
return None"""
|
|
count = 0
|
|
ascii = ''
|
|
for value in map(ord, memstr):
|
|
if not count: print "%04x: " % adr,
|
|
print "%02x" % value,
|
|
ascii += (32 <= value < 128) and chr(value) or '.'
|
|
count += 1
|
|
adr += 1
|
|
if count == 16:
|
|
count = 0
|
|
print " ", ascii
|
|
ascii = ''
|
|
if count < 16: print " "*(16-count), " ", ascii
|
|
|
|
def makeihex( (address, data) ):
|
|
"""work though the data and output lines in inzel hex format.
|
|
and end tag is appended"""
|
|
start = 0
|
|
while start<len(data):
|
|
end = start + 16
|
|
if end > len(data): end = len(data)
|
|
_ihexline(address, [ord(x) for x in data[start:end]])
|
|
start += 16
|
|
address += 16
|
|
_ihexline(address, [], type=1) #append no data but an end line
|
|
|
|
def _ihexline(address, buffer, type=0):
|
|
"""encode one line, output with checksum"""
|
|
sys.stdout.write( ':%02X%04X%02X' % (len(buffer), address & 0xffff, type) )
|
|
sum = len(buffer) + ((address >> 8) & 255) + (address & 255)
|
|
for b in buffer:
|
|
if b == None: b = 0 #substitute nonexistent values with zero
|
|
sys.stdout.write('%02X' % (b & 255))
|
|
sum += b&255
|
|
sys.stdout.write('%02X\n' %( (-sum) & 255))
|
|
|
|
|
|
class Segment:
|
|
"""store a string with memory contents along with its startaddress"""
|
|
def __init__(self, startaddress = 0, data=None):
|
|
if data is None:
|
|
self.data = ''
|
|
else:
|
|
self.data = data
|
|
self.startaddress = startaddress
|
|
|
|
def __getitem__(self, index):
|
|
return self.data[index]
|
|
|
|
def __len__(self):
|
|
return len(self.data)
|
|
|
|
def __repr__(self):
|
|
return "Segment(startaddress = 0x%04x, data=%r)" % (self.startaddress, self.data)
|
|
|
|
class Memory:
|
|
"""represent memory contents. with functions to load files"""
|
|
def __init__(self, filename=None):
|
|
self.segments = []
|
|
if filename:
|
|
self.filename = filename
|
|
self.loadFile(filename)
|
|
|
|
def append(self, seg):
|
|
self.segments.append(seg)
|
|
|
|
def __getitem__(self, index):
|
|
return self.segments[index]
|
|
|
|
def __len__(self):
|
|
return len(self.segments)
|
|
|
|
def loadIHex(self, file):
|
|
"""load data from a (opened) file in Intel-HEX format"""
|
|
segmentdata = []
|
|
currentAddr = 0
|
|
startAddr = 0
|
|
lines = file.readlines()
|
|
for l in lines:
|
|
if not l.strip(): continue #skip empty lines
|
|
if l[0] != ':': raise Exception("File Format Error\n")
|
|
l = l.strip() #fix CR-LF issues...
|
|
length = int(l[1:3],16)
|
|
address = int(l[3:7],16)
|
|
type = int(l[7:9],16)
|
|
check = int(l[-2:],16)
|
|
if type == 0x00:
|
|
if currentAddr != address:
|
|
if segmentdata:
|
|
self.segments.append( Segment(startAddr, ''.join(segmentdata)) )
|
|
startAddr = currentAddr = address
|
|
segmentdata = []
|
|
for i in range(length):
|
|
segmentdata.append( chr(int(l[9+2*i:11+2*i],16)) )
|
|
currentAddr = length + currentAddr
|
|
elif type == 0x01:
|
|
pass
|
|
else:
|
|
sys.stderr.write("Ignored unknown field (type 0x%02x) in ihex file.\n" % type)
|
|
if segmentdata:
|
|
self.segments.append( Segment(startAddr, ''.join(segmentdata)) )
|
|
|
|
def loadTIText(self, file):
|
|
"""load data from a (opened) file in TI-Text format"""
|
|
next = 1
|
|
currentAddr = 0
|
|
startAddr = 0
|
|
segmentdata = []
|
|
#Convert data for MSP430, TXT-File is parsed line by line
|
|
while next >= 1:
|
|
#Read one line
|
|
l = file.readline()
|
|
if not l: break #EOF
|
|
l = l.strip()
|
|
if l[0] == 'q': break
|
|
elif l[0] == '@': #if @ => new address => send frame and set new addr.
|
|
#create a new segment
|
|
if segmentdata:
|
|
self.segments.append( Segment(startAddr, ''.join(segmentdata)) )
|
|
startAddr = currentAddr = int(l[1:],16)
|
|
segmentdata = []
|
|
else:
|
|
for i in l.split():
|
|
segmentdata.append(chr(int(i,16)))
|
|
if segmentdata:
|
|
self.segments.append( Segment(startAddr, ''.join(segmentdata)) )
|
|
|
|
def loadELF(self, file):
|
|
"""load data from a (opened) file in ELF object format.
|
|
File must be seekable"""
|
|
import elf
|
|
obj = elf.ELFObject()
|
|
obj.fromFile(file)
|
|
if obj.e_type != elf.ELFObject.ET_EXEC:
|
|
raise Exception("No executable")
|
|
for section in obj.getSections():
|
|
if DEBUG:
|
|
sys.stderr.write("ELF section %s at 0x%04x %d bytes\n" % (section.name, section.lma, len(section.data)))
|
|
if len(section.data):
|
|
self.segments.append( Segment(section.lma, section.data) )
|
|
|
|
def loadFile(self, filename):
|
|
"""fill memory with the contents of a file. file type is determined from extension"""
|
|
#TODO: do a contents based detection
|
|
if filename[-4:].lower() == '.txt':
|
|
self.loadTIText(open(filename, "rb"))
|
|
elif filename[-4:].lower() in ('.a43', '.hex'):
|
|
self.loadIHex(open(filename, "rb"))
|
|
else:
|
|
self.loadELF(open(filename, "rb"))
|
|
|
|
def getMemrange(self, fromadr, toadr):
|
|
"""get a range of bytes from the memory. unavailable values are filled with 0xff."""
|
|
res = ''
|
|
toadr = toadr + 1 #python indxes are excluding end, so include it
|
|
while fromadr < toadr:
|
|
for seg in self.segments:
|
|
segend = seg.startaddress + len(seg.data)
|
|
if seg.startaddress <= fromadr and fromadr < segend:
|
|
if toadr > segend: #not all data in segment
|
|
catchlength = segend-fromadr
|
|
else:
|
|
catchlength = toadr-fromadr
|
|
res = res + seg.data[fromadr-seg.startaddress : fromadr-seg.startaddress+catchlength]
|
|
fromadr = fromadr + catchlength #adjust start
|
|
if len(res) >= toadr-fromadr:
|
|
break #return res
|
|
else: #undefined memory is filled with 0xff
|
|
res = res + chr(255)
|
|
fromadr = fromadr + 1 #adjust start
|
|
return res
|
|
|
|
class JTAG:
|
|
"""wrap the _parjtag extension"""
|
|
|
|
def __init__(self):
|
|
self.showprogess = 0
|
|
|
|
def connect(self, lpt=None):
|
|
"""connect to specified or default port"""
|
|
if lpt is None:
|
|
_parjtag.connect()
|
|
else:
|
|
_parjtag.connect(lpt)
|
|
|
|
def close(self):
|
|
"""release JTAG"""
|
|
_parjtag.release()
|
|
|
|
def uploadData(self, startaddress, size):
|
|
"""upload a datablock"""
|
|
if DEBUG > 1: sys.stderr.write("* uploadData()\n")
|
|
return _parjtag.memread(startaddress, size)
|
|
|
|
def actionMassErase(self):
|
|
"""Erase the flash memory completely (with mass erase command)"""
|
|
sys.stderr.write("Mass Erase...\n")
|
|
_parjtag.memerase(ERASE_MASS)
|
|
|
|
def actionMainErase(self):
|
|
"""Erase the MAIN flash memory, leave the INFO mem"""
|
|
sys.stderr.write("Erase Main Flash...\n")
|
|
_parjtag.memerase(ERASE_MAIN, 0xfffe)
|
|
|
|
def makeActionSegmentErase(self, address):
|
|
"""Selective segment erase"""
|
|
class SegmentEraser:
|
|
def __init__(self, segaddr):
|
|
self.address = segaddr
|
|
def __call__(self):
|
|
sys.stderr.write("Erase Segment @ 0x%04x...\n" % self.address)
|
|
_parjtag.memerase(ERASE_SGMT, self.address)
|
|
return SegmentEraser(address)
|
|
|
|
def actionEraseCheck(self):
|
|
"""check the erasure of required flash cells."""
|
|
sys.stderr.write("Erase Check by file ...\n")
|
|
if self.data is not None:
|
|
for seg in self.data:
|
|
data = _parjtag.memread(seg.startaddress, len(seg.data))
|
|
if data != '\xff'*len(seg.data): raise JTAGException("Erase check failed")
|
|
else:
|
|
raise JTAGException("cannot do erase check against data with not knowing the actual data")
|
|
|
|
def progess_update(self, count, total):
|
|
sys.stderr.write("\r%d%%" % (100*count/total))
|
|
|
|
def actionProgram(self):
|
|
"""program data into flash memory."""
|
|
if self.data is not None:
|
|
sys.stderr.write("Program ...\n")
|
|
if self.showprogess:
|
|
_parjtag.set_flash_callback(self.progess_update)
|
|
bytes = 0
|
|
for seg in self.data:
|
|
_parjtag.memwrite(seg.startaddress, seg.data)
|
|
bytes += len(seg.data)
|
|
if self.showprogess:
|
|
sys.stderr.write("\r")
|
|
sys.stderr.write("%i bytes programmed.\n" % bytes)
|
|
else:
|
|
raise JTAGException("programming without data not possible")
|
|
|
|
def actionVerify(self):
|
|
"""Verify programmed data"""
|
|
if self.data is not None:
|
|
sys.stderr.write("Verify ...\n")
|
|
for seg in self.data:
|
|
data = _parjtag.memread(seg.startaddress, len(seg.data))
|
|
if data != seg.data: raise JTAGException("Verify failed")
|
|
else:
|
|
raise JTAGException("verify without data not possible")
|
|
|
|
def actionReset(self):
|
|
"""perform a reset"""
|
|
sys.stderr.write("Reset device ...\n")
|
|
_parjtag.reset(0, 0)
|
|
|
|
def actionRun(self, address):
|
|
"""start program at specified address"""
|
|
raise NotImplementedError
|
|
#sys.stderr.write("Load PC with 0x%04x ...\n" % address)
|
|
|
|
def funclet(self):
|
|
"""download and start funclet"""
|
|
sys.stderr.write("Download and execute of funclet...\n")
|
|
if len(self.data) > 1:
|
|
raise JTAGException("don't know how to handle multiple segments in funclets")
|
|
_parjtag.funclet(self.data[0].data)
|
|
sys.stderr.write("Funclet OK.\n")
|
|
|
|
def usage():
|
|
"""print some help message"""
|
|
sys.stderr.write("""
|
|
USAGE: %s [options] [file]
|
|
Version: %s
|
|
|
|
If "-" is specified as file the data is read from the stdinput.
|
|
A file ending with ".txt" is considered to be in TIText format all
|
|
other filenames are considered IntelHex.
|
|
|
|
General options:
|
|
-h, --help Show this help screen.
|
|
-l, --lpt=name Specify an other parallel port.
|
|
(defaults to LPT1 (/dev/parport0 on unix)
|
|
-D, --debug Increase level of debug messages. This won't be
|
|
very useful for the average user...
|
|
-I, --intelhex Force fileformat to IntelHex
|
|
-T, --titext Force fileformat to be TIText
|
|
-f, --funclet The given file is a funclet (a small program to
|
|
be run in RAM)
|
|
-R, --ramsize Specify the amont of RAM to be used to program
|
|
flash (default 256).
|
|
|
|
Program Flow Specifiers:
|
|
|
|
-e, --masserase Mass Erase (clear all flash memory)
|
|
-m, --mainerase Erase main flash memory only
|
|
--eraseinfo Erase info flash memory only (0x1000-0x10ff)
|
|
--erase=address Selectively erase segment at the specified address
|
|
-E, --erasecheck Erase Check by file
|
|
-p, --program Program file
|
|
-v, --verify Verify by file
|
|
|
|
The order of the above options matters! The table is ordered by normal
|
|
execution order. For the options "Epv" a file must be specified.
|
|
Program flow specifiers default to "p" if a file is given.
|
|
Don't forget to specify "e" or "eE" when programming flash!
|
|
"p" already verifies the programmed data, "v" adds an additional
|
|
verification though uploading the written data for a 1:1 compare.
|
|
No default action is taken if "p" and/or "v" is given, say specifying
|
|
only "v" does a check by file of a programmed device.
|
|
|
|
Data retreiving:
|
|
-u, --upload=addr Upload a datablock (see also: -s).
|
|
-s, --size=num Size of the data block do upload. (Default is 2)
|
|
-x, --hex Show a hexadecimal display of the uploaded data.
|
|
(Default)
|
|
-b, --bin Get binary uploaded data. This can be used
|
|
to redirect the output into a file.
|
|
-i, --ihex Uploaded data is output in Intel HEX format.
|
|
This can be used to clone a device.
|
|
|
|
Do before exit:
|
|
-g, --go=address Start programm execution at specified address.
|
|
This implies option "w" (wait)
|
|
-r, --reset Reset connected MSP430. Starts application.
|
|
This is a normal device reset and will start
|
|
the programm that is specified in the reset
|
|
interrupt vector. (see also -g)
|
|
-w, --wait Wait for <ENTER> before closing parallel port.
|
|
""" % (sys.argv[0], VERSION))
|
|
|
|
def main():
|
|
global DEBUG
|
|
import getopt
|
|
filetype = None
|
|
filename = None
|
|
reset = 0
|
|
wait = 0
|
|
goaddr = None
|
|
jtag = JTAG()
|
|
toinit = []
|
|
todo = []
|
|
startaddr = None
|
|
size = 2
|
|
outputformat= HEX
|
|
lpt = None
|
|
funclet = None
|
|
ramsize = None
|
|
|
|
sys.stderr.write("MSP430 parallel JTAG programmer Version: %s\n" % VERSION)
|
|
try:
|
|
opts, args = getopt.getopt(sys.argv[1:],
|
|
"hl:weEmpvrg:Du:d:s:xbiITfR:S",
|
|
["help", "lpt=", "wait"
|
|
"masserase", "erasecheck", "mainerase", "program",
|
|
"erase=", "eraseinfo",
|
|
"verify", "reset", "go=", "debug",
|
|
"upload=", "download=", "size=", "hex", "bin", "ihex",
|
|
"intelhex", "titext", "funclet", "ramsize=", "progress"]
|
|
)
|
|
except getopt.GetoptError:
|
|
# print help information and exit:
|
|
usage()
|
|
sys.exit(2)
|
|
|
|
for o, a in opts:
|
|
if o in ("-h", "--help"):
|
|
usage()
|
|
sys.exit()
|
|
elif o in ("-l", "--lpt"):
|
|
lpt = a
|
|
elif o in ("-w", "--wait"):
|
|
wait = 1
|
|
elif o in ("-e", "--masserase"):
|
|
toinit.append(jtag.actionMassErase) #Erase Flash
|
|
elif o in ("-E", "--erasecheck"):
|
|
toinit.append(jtag.actionEraseCheck) #Erase Check (by file)
|
|
elif o in ("-m", "--mainerase"):
|
|
toinit.append(jtag.actionMainErase) #Erase main Flash
|
|
elif o == "--erase":
|
|
try:
|
|
seg = int(a, 0)
|
|
toinit.append(jtag.makeActionSegmentErase(seg))
|
|
except ValueError:
|
|
sys.stderr.write("segment address must be a valid number in dec, hex or octal\n")
|
|
sys.exit(2)
|
|
elif o == "--eraseinfo":
|
|
toinit.append(jtag.makeActionSegmentErase(0x1000))
|
|
toinit.append(jtag.makeActionSegmentErase(0x1080))
|
|
elif o in ("-p", "--program"):
|
|
todo.append(jtag.actionProgram) #Program file
|
|
elif o in ("-v", "--verify"):
|
|
todo.append(jtag.actionVerify) #Verify file
|
|
elif o in ("-r", "--reset"):
|
|
reset = 1
|
|
elif o in ("-g", "--go"):
|
|
try:
|
|
goaddr = int(a, 0) #try to convert decimal
|
|
except ValueError:
|
|
sys.stderr.write("upload address must be a valid number in dec, hex or octal\n")
|
|
sys.exit(2)
|
|
elif o in ("-D", "--debug"):
|
|
DEBUG = DEBUG + 1
|
|
elif o in ("-u", "--upload"):
|
|
try:
|
|
startaddr = int(a, 0) #try to convert number of any base
|
|
except ValueError:
|
|
sys.stderr.write("upload address must be a valid number in dec, hex or octal\n")
|
|
sys.exit(2)
|
|
elif o in ("-s", "--size"):
|
|
try:
|
|
size = int(a, 0)
|
|
except ValueError:
|
|
sys.stderr.write("upload address must be a valid number in dec, hex or octal\n")
|
|
sys.exit(2)
|
|
#outut formats
|
|
elif o in ("-x", "--hex"):
|
|
outputformat = HEX
|
|
elif o in ("-b", "--bin"):
|
|
outputformat = BINARY
|
|
elif o in ("-i", "--ihex"):
|
|
outputformat = INTELHEX
|
|
#input formats
|
|
elif o in ("-I", "--intelhex"):
|
|
filetype = 0
|
|
elif o in ("-T", "--titext"):
|
|
filetype = 1
|
|
#others
|
|
elif o in ("-f", "--funclet"):
|
|
funclet = 1
|
|
elif o in ("-R", "--ramsize"):
|
|
try:
|
|
ramsize = int(a, 0)
|
|
except ValueError:
|
|
sys.stderr.write("ramsize must be a valid number in dec, hex or octal\n")
|
|
sys.exit(2)
|
|
elif o in ("-S", "--progress"):
|
|
jtag.showprogess = 1
|
|
|
|
if len(args) == 0:
|
|
sys.stderr.write("Use -h for help\n")
|
|
elif len(args) == 1: #a filename is given
|
|
if not funclet:
|
|
if not todo: #if there are no actions yet
|
|
todo.extend([ #add some useful actions...
|
|
jtag.actionProgram,
|
|
])
|
|
filename = args[0]
|
|
else: #number of args is wrong
|
|
usage()
|
|
sys.exit(2)
|
|
|
|
if DEBUG: #debug infos
|
|
sys.stderr.write("debug level set to %d\n" % DEBUG)
|
|
_parjtag.configure(DEBUG_OPTION, DEBUG)
|
|
sys.stderr.write("python version: %s\n" % sys.version)
|
|
|
|
|
|
#sanity check of options
|
|
if goaddr and reset:
|
|
sys.stderr.write("Warning: option --reset ignored as --go is specified!\n")
|
|
reset = 0
|
|
|
|
if startaddr and reset:
|
|
sys.stderr.write("Warning: option --reset ignored as --upload is specified!\n")
|
|
reset = 0
|
|
|
|
#prepare data to download
|
|
jtag.data = Memory() #prepare downloaded data
|
|
if filetype is not None: #if the filetype is given...
|
|
if filename is None:
|
|
raise ValueError("no filename but filetype specified")
|
|
if filename == '-': #get data from stdin
|
|
file = sys.stdin
|
|
else:
|
|
file = open(filename,"rb") #or from a file
|
|
if filetype == 0: #select load function
|
|
jtag.data.loadIHex(file) #intel hex
|
|
elif filetype == 1:
|
|
jtag.data.loadTIText(file) #TI's format
|
|
else:
|
|
raise ValueError("illegal filetype specified")
|
|
else: #no filetype given...
|
|
if filename == '-': #for stdin:
|
|
jtag.data.loadIHex(sys.stdin) #assume intel hex
|
|
elif filename:
|
|
jtag.data.loadFile(filename) #autodetect otherwise
|
|
|
|
if DEBUG > 5: sys.stderr.write("File: %r\n" % filename)
|
|
|
|
try:
|
|
jtag.connect(lpt) #try to open port
|
|
except IOError:
|
|
raise #do not handle here
|
|
else: #continue if open was successful
|
|
if ramsize is not None:
|
|
_parjtag.configure(RAMSIZE_OPTION, ramsize)
|
|
#initialization list
|
|
if toinit: #erase and erase check
|
|
if DEBUG: sys.stderr.write("Preparing device ...\n")
|
|
for f in toinit: f()
|
|
|
|
#work list
|
|
if todo:
|
|
if DEBUG > 0: #debug
|
|
#show a nice list of sheduled actions
|
|
sys.stderr.write("TODO list:\n")
|
|
for f in todo:
|
|
try:
|
|
sys.stderr.write(" %s\n" % f.func_name)
|
|
except AttributeError:
|
|
sys.stderr.write(" %r\n" % f)
|
|
for f in todo: f() #work through todo list
|
|
|
|
if reset: #reset device first if desired
|
|
jtag.actionReset()
|
|
|
|
if funclet is not None: #download and start funclet
|
|
jtag.funclet()
|
|
|
|
if goaddr is not None: #start user programm at specified address
|
|
jtag.actionRun(goaddr) #load PC and execute
|
|
|
|
#upload datablock and output
|
|
if startaddr is not None:
|
|
if goaddr: #if a program was started...
|
|
raise NotImplementedError
|
|
#TODO:
|
|
#sys.stderr.write("Waiting to device for reconnect for upload: ")
|
|
data = jtag.uploadData(startaddr, size) #upload data
|
|
if outputformat == HEX: #depending on output format
|
|
hexdump( (startaddr, data) ) #print a hex display
|
|
elif outputformat == INTELHEX:
|
|
makeihex( (startaddr, data) ) #ouput a intel-hex file
|
|
else:
|
|
sys.stdout.write(data) #binary output w/o newline!
|
|
wait = 0 #wait makes no sense as after the upload the device is still stopped
|
|
|
|
if wait: #wait at the end if desired
|
|
sys.stderr.write("Press <ENTER> ...\n") #display a prompt
|
|
raw_input() #wait for newline
|
|
|
|
_parjtag.reset(1, 1) #reset and release target
|
|
#~ jtag.actionReset()
|
|
jtag.close() #Release communication port
|
|
|
|
if __name__ == '__main__':
|
|
try:
|
|
main()
|
|
except SystemExit:
|
|
raise #let pass exit() calls
|
|
except KeyboardInterrupt:
|
|
if DEBUG: raise #show full trace in debug mode
|
|
sys.stderr.write("user abort.\n") #short messy in user mode
|
|
sys.exit(1) #set errorlevel for script usage
|
|
except Exception, msg: #every Exception is caught and displayed
|
|
if DEBUG: raise #show full trace in debug mode
|
|
sys.stderr.write("\nAn error occoured:\n%s\n" % msg) #short messy in user mode
|
|
sys.exit(1) #set errorlevel for script usage
|