Created
August 29, 2015 21:55
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#!/usr/bin/python | |
import sys, getopt, serial, binascii | |
class Mode: | |
NONE = 0 | |
DUMP = 1 | |
BURN = 2 | |
CHECK = 3 | |
class Command: | |
PREFIX = 0x42 | |
NONE = 0 | |
PING = 1 | |
STARTRW = 2 | |
READBLOCK = 3 | |
WRITEBLOCK = 4 | |
PONG = 'PONG' | |
BLOCKSIZE = 512 | |
romfile = '' | |
serialport = '' | |
def main(argv): | |
global romfile | |
global serialport | |
mode = Mode.NONE | |
if len(argv)==0: | |
usage() | |
try: | |
opts, args = getopt.getopt(argv,'dbcs:r:',['dump','burn','check','serial=','rom=']) | |
except getopt.GetoptError: | |
usage() | |
for opt, arg in opts: | |
if opt == '-c': | |
mode = Mode.CHECK | |
elif opt == '-d': | |
mode = Mode.DUMP | |
elif opt == '-b': | |
mode = Mode.BURN | |
elif opt == '-s': | |
serialport = arg | |
elif opt == '-r': | |
romfile = arg | |
else: | |
mode = Mode.NONE | |
commands = { | |
Mode.NONE: usage, | |
Mode.BURN: burnROM, | |
Mode.DUMP: dumpROM, | |
Mode.CHECK: checkConnection | |
} | |
commands[mode]() | |
def checkConnection(): | |
if serialport=='': | |
usage() | |
print 'Checking connection to ' + serialport + '...' | |
try: | |
# Create the serial connection | |
connection = serial.Serial(serialport,19200,timeout=1) | |
print 'Found ' + serialport + '. Pinging EETool...' | |
except (OSError,serial.SerialException): | |
print 'Unable to find that serial port.' | |
sys.exit(2) | |
try: | |
# Try sending a ping | |
wrote = connection.write(bytearray([Command.PREFIX,Command.PING])) | |
if wrote != 2: | |
raise ValueError() | |
print 'Sent', wrote, 'byte ping. Waiting for response...' | |
# Did we get a pong back? | |
while 1: | |
numBytes = connection.inWaiting() | |
if numBytes>0: | |
break | |
print 'Received', numBytes, 'byte pong' | |
if numBytes != len(PONG): | |
raise serial.SerialException | |
response = connection.read(numBytes) | |
if (response != PONG): | |
raise serial.SerialException | |
except (ValueError,OSError,serial.SerialException): | |
print 'EETool is not responding. Check connections and try again.' | |
connection.close() | |
sys.exit(2) | |
print 'EETool is online and ready for use.' | |
connection.close() | |
sys.exit(0) | |
def burnROM(): | |
usage() | |
def dumpROM(): | |
if romfile=='' or serialport=='': | |
usage() | |
print 'Connecting to ' + serialport + '...' | |
try: | |
# Create the serial connection | |
connection = serial.Serial(serialport,19200,timeout=1) | |
except (OSError,serial.SerialException): | |
print 'Unable to find that serial port.' | |
sys.exit(2) | |
try: | |
destFile = open (romfile, "wb") | |
except OSError: | |
print 'Unable to write to ROM file',romfile | |
sys.exit(2) | |
try: | |
# Prepare to read | |
wrote = connection.write(bytearray([Command.PREFIX,Command.STARTRW])) | |
if wrote != 2: | |
raise ValueError() | |
print 'Requesting data from EETool...' | |
totalSize = 0 | |
# Request all the blocks | |
for blockNum in range(0,64): | |
wrote = connection.write(bytearray([Command.PREFIX,Command.READBLOCK])) | |
if wrote != 2: | |
raise ValueError() | |
while 1: | |
numBytes = connection.inWaiting() | |
if numBytes>=BLOCKSIZE: | |
break | |
if (numBytes!=BLOCKSIZE): | |
print 'ERROR: Block',blockNum,'failed to download. Aborting.' | |
sys.exit(2) | |
response = connection.read(numBytes) | |
# Write the block to our file | |
destFile.write(bytes(response)) | |
sys.stdout.write('#') | |
sys.stdout.flush() | |
totalSize += numBytes | |
destFile.close() | |
print '\nDone! ROM is',totalSize,'bytes.' | |
sys.exit(0) | |
except (ValueError,OSError,serial.SerialException): | |
connection.close() | |
sys.exit(0) | |
def usage(): | |
print ''' | |
Usage: EECommander -[d|b|c] -s <serial port> -r <rom file> | |
-d: Dump the contents of the attached ROM or EEPROM to a file' | |
-b: Burn the rom file to the attached EEPROM | |
-c: Check your connection to EETool (no other action taken) | |
To find your serial port, connect EETool and try "ls /dev/tty.usbmodem*" on Mac or Linux. | |
On Windows, use a COM port name, such as "COM1". You can use the -c option to find out which one. | |
''' | |
sys.exit(2) | |
if __name__ == "__main__": | |
main(sys.argv[1:]) |
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