Browse Source

dist/tools: update serial boot loader script

pr/spi.typo
PeterKietzmann 7 years ago
parent
commit
5b3d7fadcf
  1. 590
      dist/tools/cc2538-bsl/cc2538-bsl.py

590
dist/tools/cc2538-bsl/cc2538-bsl.py vendored

@ -29,7 +29,7 @@
# Implementation based on stm32loader by Ivan A-R <ivan@tuxotronic.org>
# Serial boot loader over UART for CC2538
# Serial boot loader over UART for CC13xx / CC2538 / CC26xx
# Based on the info found in TI's swru333a.pdf (spma029.pdf)
#
# Bootloader only starts if no valid image is found or if boot loader
@ -48,9 +48,22 @@ import os
import subprocess
import struct
import binascii
import traceback
try:
import magic
have_magic = True
except ImportError:
have_magic = False
try:
from intelhex import IntelHex
have_hex_support = True
except ImportError:
have_hex_support = False
#version
VERSION_STRING = "1.0"
VERSION_STRING = "2.1"
# Verbose level
QUIET = 5
@ -93,12 +106,91 @@ COMMAND_RET_INVALID_CMD = 0x42
COMMAND_RET_INVALID_ADR = 0x43
COMMAND_RET_FLASH_FAIL = 0x44
ADDR_IEEE_ADDRESS_SECONDARY = 0x0027ffcc
class CmdException(Exception):
pass
class FirmwareFile(object):
HEX_FILE_EXTENSIONS = ('hex', 'ihx', 'ihex')
def __init__(self, path):
"""
Read a firmware file and store its data ready for device programming.
This class will try to guess the file type if python-magic is available.
If python-magic indicates a plain text file, and if IntelHex is
available, then the file will be treated as one of Intel HEX format.
In all other cases, the file will be treated as a raw binary file.
In both cases, the file's contents are stored in bytes for subsequent
usage to program a device or to perform a crc check.
Parameters:
path -- A str with the path to the firmware file.
Attributes:
bytes: A bytearray with firmware contents ready to send to the device
"""
self._crc32 = None
firmware_is_hex = False
if have_magic:
file_type = bytearray(magic.from_file(path, True))
#from_file() returns bytes with PY3, str with PY2. This comparison
#will be True in both cases"""
if file_type == b'text/plain':
firmware_is_hex = True
mdebug(5, "Firmware file: Intel Hex")
elif file_type == b'application/octet-stream':
mdebug(5, "Firmware file: Raw Binary")
else:
error_str = "Could not determine firmware type. Magic " \
"indicates '%s'" % (file_type)
raise CmdException(error_str)
else:
if os.path.splitext(path)[1][1:] in self.HEX_FILE_EXTENSIONS:
firmware_is_hex = True
mdebug(5, "Your firmware looks like an Intel Hex file")
else:
mdebug(5, "Cannot auto-detect firmware filetype: Assuming .bin")
mdebug(10, "For more solid firmware type auto-detection, install "
"python-magic.")
mdebug(10, "Please see the readme for more details.")
if firmware_is_hex:
if have_hex_support:
self.bytes = bytearray(IntelHex(path).tobinarray())
return
else:
error_str = "Firmware is Intel Hex, but the IntelHex library " \
"could not be imported.\n" \
"Install IntelHex in site-packages or program " \
"your device with a raw binary (.bin) file.\n" \
"Please see the readme for more details."
raise CmdException(error_str)
with open(path, 'rb') as f:
self.bytes = bytearray(f.read())
def crc32(self):
"""
Return the crc32 checksum of the firmware image
Return:
The firmware's CRC32, ready for comparison with the CRC
returned by the ROM bootloader's COMMAND_CRC32
"""
if self._crc32 is None:
self._crc32 = binascii.crc32(bytearray(self.bytes)) & 0xffffffff
return self._crc32
class CommandInterface(object):
ACK_BYTE = 0xCC
NACK_BYTE = 0x33
def open(self, aport='/dev/tty.usbserial-000013FAB', abaudrate=500000):
self.sp = serial.Serial(
port=aport,
@ -111,40 +203,66 @@ class CommandInterface(object):
timeout=0.5 # set a timeout value, None for waiting forever
)
# Use the DTR and RTS lines to control !RESET and the bootloader pin.
def invoke_bootloader(self, dtr_active_high=False, inverted=False):
# Use the DTR and RTS lines to control bootloader and the !RESET pin.
# This can automatically invoke the bootloader without the user
# having to toggle any pins.
#
# If inverted is False (default):
# DTR: connected to the bootloader pin
# RTS: connected to !RESET
self.sp.setDTR(1)
self.sp.setRTS(0)
self.sp.setRTS(1)
self.sp.setRTS(0)
self.sp.setDTR(0)
# If inverted is True, pin connections are the other way round
if inverted:
set_bootloader_pin = self.sp.setRTS
set_reset_pin = self.sp.setDTR
else:
set_bootloader_pin = self.sp.setDTR
set_reset_pin = self.sp.setRTS
set_bootloader_pin(1 if not dtr_active_high else 0)
set_reset_pin(0)
set_reset_pin(1)
set_reset_pin(0)
time.sleep(0.002) # Make sure the pin is still asserted when the chip
# comes out of reset. This fixes an issue where there
# wasn't enough delay here on Mac.
set_bootloader_pin(0 if not dtr_active_high else 1)
# Some boards have a co-processor that detects this sequence here and
# then drives the main chip's BSL enable and !RESET pins. Depending on
# board design and co-processor behaviour, the !RESET pin may get
# asserted after we have finished the sequence here. In this case, we
# need a small delay so as to avoid trying to talk to main chip before
# it has actually entered its bootloader mode.
#
# See contiki-os/contiki#1533
time.sleep(0.1)
def close(self):
self.sp.close()
def _wait_for_ack(self, info="", timeout=0):
def _wait_for_ack(self, info = "", timeout = 1):
stop = time.time() + timeout
got = None
while not got:
got = self._read(2)
got = bytearray(2)
while got[-2] != 00 or got[-1] not in (CommandInterface.ACK_BYTE,
CommandInterface.NACK_BYTE):
got += self._read(1)
if time.time() > stop:
break
raise CmdException("Timeout waiting for ACK/NACK after '%s'"
% (info,))
if not got:
mdebug(10, "No response to %s" % info)
return 0
# Our bytearray's length is: 2 initial bytes + 2 bytes for the ACK/NACK
# plus a possible N-4 additional (buffered) bytes
mdebug(10, "Got %d additional bytes before ACK/NACK" % (len(got) - 4,))
# wait for ask
ask = got[1]
ask = got[-1]
if ask == 0xCC:
if ask == CommandInterface.ACK_BYTE:
# ACK
return 1
elif ask == 0x33:
elif ask == CommandInterface.NACK_BYTE:
# NACK
mdebug(10, "Target replied with a NACK during %s" % info)
return 0
@ -172,33 +290,46 @@ class CommandInterface(object):
+cmd)
&0xFF)
def _write(self, data):
def _write(self, data, is_retry=False):
if PY3:
if type(data) == int:
self.sp.write(bytes([data]))
assert data < 256
goal = 1
written = self.sp.write(bytes([data]))
elif type(data) == bytes or type(data) == bytearray:
self.sp.write(data)
goal = len(data)
written = self.sp.write(data)
else:
raise CmdException("Internal Error. Bad data type: {}".format(type(data)))
else:
if type(data) == int:
self.sp.write(chr(data))
assert data < 256
goal = 1
written = self.sp.write(chr(data))
else:
self.sp.write(data)
goal = len(data)
written = self.sp.write(data)
if written < goal:
mdebug(10, "*** Only wrote {} of target {} bytes".format(written, goal))
if is_retry and written == 0:
raise CmdException("Failed to write data on the serial bus")
mdebug(10, "*** Retrying write for remainder")
if type(data) == int:
return self._write(data, is_retry=True)
else:
return self._write(data[written:], is_retry=True)
def _read(self, length):
got = self.sp.read(length)
if PY3:
return got
else:
return [ord(x) for x in got]
return bytearray(self.sp.read(length))
def sendAck(self):
self._write(chr(0x00))
self._write(0x00)
self._write(0xCC)
return
def sendNAck(self):
self._write(chr(0x00))
self._write(chr(0x33))
self._write(0x00)
self._write(0x33)
return
@ -215,7 +346,7 @@ class CommandInterface(object):
size = got[0] #rcv size
chks = got[1] #rcv checksum
data = self._read(size-2) # rcv data
data = bytearray(self._read(size - 2)) # rcv data
mdebug(10, "*** received %x bytes" % size)
if chks == sum(data)&0xFF:
@ -235,7 +366,7 @@ class CommandInterface(object):
mdebug(10, "*** sending synch sequence")
self._write(cmd) # send U
self._write(cmd) # send U
return self._wait_for_ack("Synch (0x55 0x55)")
return self._wait_for_ack("Synch (0x55 0x55)", 2)
def checkLastCmd(self):
stat = self.cmdGetStatus()
@ -246,11 +377,11 @@ class CommandInterface(object):
mdebug(10, "Command Successful")
return 1
else:
stat_str = RETURN_CMD_STRS.get(stat, None)
stat_str = RETURN_CMD_STRS.get(stat[0], None)
if stat_str is None:
mdebug(0, 'Warning: unrecognized status returned 0x%x' % stat)
mdebug(0, 'Warning: unrecognized status returned 0x%x' % stat[0])
else:
mdebug(0, "Target returned: 0x%x, %s" % (stat, stat_str))
mdebug(0, "Target returned: 0x%x, %s" % (stat[0], stat_str))
return 0
@ -291,6 +422,7 @@ class CommandInterface(object):
version = self.receivePacket() # 4 byte answ, the 2 LSB hold chip ID
if self.checkLastCmd():
assert len(version) == 4, "Unreasonable chip id: %s" % repr(version)
mdebug(10, " Version 0x%02X%02X%02X%02X" % tuple(version))
chip_id = (version[2] << 8) | version[3]
return chip_id
else:
@ -348,6 +480,18 @@ class CommandInterface(object):
if self._wait_for_ack("Erase memory (0x26)",10):
return self.checkLastCmd()
def cmdBankErase(self):
cmd = 0x2C
lng = 3
self._write(lng) # send length
self._write(cmd) # send checksum
self._write(cmd) # send cmd
mdebug(10, "*** Bank Erase command(0x2C)")
if self._wait_for_ack("Bank Erase (0x2C)",10):
return self.checkLastCmd()
def cmdCRC32(self, addr, size):
cmd=0x27
lng=11
@ -364,6 +508,23 @@ class CommandInterface(object):
if self.checkLastCmd():
return self._decode_addr(crc[3],crc[2],crc[1],crc[0])
def cmdCRC32CC26xx(self, addr, size):
cmd = 0x27
lng = 15
self._write(lng) # send length
self._write(self._calc_checks(cmd, addr, size)) # send checksum
self._write(cmd) # send cmd
self._write(self._encode_addr(addr)) # send addr
self._write(self._encode_addr(size)) # send size
self._write(self._encode_addr(0x00000000)) # send number of reads
mdebug(10, "*** CRC32 command(0x27)")
if self._wait_for_ack("Get CRC32 (0x27)", 1):
crc=self.receivePacket()
if self.checkLastCmd():
return self._decode_addr(crc[3], crc[2], crc[1], crc[0])
def cmdDownload(self, addr, size):
cmd=0x21
lng=11
@ -411,6 +572,23 @@ class CommandInterface(object):
if self.checkLastCmd():
return data # self._decode_addr(ord(data[3]),ord(data[2]),ord(data[1]),ord(data[0]))
def cmdMemReadCC26xx(self, addr):
cmd = 0x2A
lng = 9
self._write(lng) # send length
self._write(self._calc_checks(cmd, addr, 2)) # send checksum
self._write(cmd) # send cmd
self._write(self._encode_addr(addr)) # send addr
self._write(1) # send width, 4 bytes
self._write(1) # send number of reads
mdebug(10, "*** Mem Read (0x2A)")
if self._wait_for_ack("Mem Read (0x2A)", 1):
data = self.receivePacket()
if self.checkLastCmd():
return data
def cmdMemWrite(self, addr, data, width): # untested
# TODO: check width for 1 or 4 and data size
cmd=0x2B
@ -433,22 +611,19 @@ class CommandInterface(object):
def writeMemory(self, addr, data):
lng = len(data)
trsf_size = 248 # amount of data bytes transferred per packet (theory: max 252 + 3)
if PY3:
empty_packet = b'\xff'*trsf_size # empty packet (filled with 0xFF)
else:
empty_packet = [255]*trsf_size # empty packet (filled with 0xFF)
empty_packet = bytearray((0xFF,) * trsf_size)
# Boot loader enable check
# TODO: implement check for all chip sizes & take into account partial firmware uploads
if (lng == 524288): #check if file is for 512K model
if not ((data[524247] & (1 << 4)) >> 4): #check the boot loader enable bit (only for 512K model)
if not query_yes_no("The boot loader backdoor is not enabled "\
if not ( conf['force'] or query_yes_no("The boot loader backdoor is not enabled "\
"in the firmware you are about to write to the target. "\
"You will NOT be able to reprogram the target using this tool if you continue! "\
"Do you want to continue?","no"):
"Do you want to continue?","no") ):
raise Exception('Aborted by user.')
mdebug(5, "Writing %(lng)d bytes starting at address 0x%(addr)X" %
mdebug(5, "Writing %(lng)d bytes starting at address 0x%(addr)08X" %
{ 'lng': lng, 'addr': addr})
offs = 0
@ -459,8 +634,7 @@ class CommandInterface(object):
if addr_set != 1:
self.cmdDownload(addr,lng) #set starting address if not set
addr_set = 1
mdebug(5, " Write %(len)d bytes at 0x%(addr)X" % {'addr': addr, 'len': trsf_size}, '\r')
mdebug(5, " Write %(len)d bytes at 0x%(addr)08X" % {'addr': addr, 'len': trsf_size}, '\r')
sys.stdout.flush()
self.cmdSendData(data[offs:offs+trsf_size]) # send next data packet
@ -471,10 +645,203 @@ class CommandInterface(object):
addr = addr + trsf_size
lng = lng - trsf_size
mdebug(5, "Write %(len)d bytes at 0x%(addr)X" % {'addr': addr, 'len': lng}, '\r')
mdebug(5, "Write %(len)d bytes at 0x%(addr)08X" % {'addr': addr, 'len': lng})
self.cmdDownload(addr,lng)
return self.cmdSendData(data[offs:offs+lng]) # send last data packet
class Chip(object):
def __init__(self, command_interface):
self.command_interface = command_interface
# Some defaults. The child can override.
self.flash_start_addr = 0x00000000
self.has_cmd_set_xosc = False
def crc(self, address, size):
return getattr(self.command_interface, self.crc_cmd)(address, size)
def disable_bootloader(self):
if not (conf['force'] or query_yes_no("Disabling the bootloader will prevent you from "\
"using this script until you re-enable the bootloader "\
"using JTAG. Do you want to continue?", "no")):
raise Exception('Aborted by user.')
if PY3:
pattern = struct.pack('<L', self.bootloader_dis_val)
else:
pattern = [ord(b) for b in struct.pack('<L', self.bootloader_dis_val)]
if cmd.writeMemory(self.bootloader_address, pattern):
mdebug(5, " Set bootloader closed done ")
else:
raise CmdException("Set bootloader closed failed ")
class CC2538(Chip):
def __init__(self, command_interface):
super(CC2538, self).__init__(command_interface)
self.flash_start_addr = 0x00200000
self.addr_ieee_address_secondary = 0x0027ffcc
self.has_cmd_set_xosc = True
self.bootloader_dis_val = 0xefffffff
self.crc_cmd = "cmdCRC32"
FLASH_CTRL_DIECFG0 = 0x400D3014
FLASH_CTRL_DIECFG2 = 0x400D301C
addr_ieee_address_primary = 0x00280028
ccfg_len = 44
#Read out primary IEEE address, flash and RAM size
model = self.command_interface.cmdMemRead(FLASH_CTRL_DIECFG0)
self.size = (model[3] & 0x70) >> 4
if 0 < self.size <= 4:
self.size *= 0x20000 # in bytes
else:
self.size = 0x10000 # in bytes
self.bootloader_address = self.flash_start_addr + self.size - ccfg_len
sram = (((model[2] << 8) | model[3]) & 0x380) >> 7
sram = (2 - sram) << 3 if sram <= 1 else 32 # in KB
pg = self.command_interface.cmdMemRead(FLASH_CTRL_DIECFG2)
pg_major = (pg[2] & 0xF0) >> 4
if pg_major == 0:
pg_major = 1
pg_minor = pg[2] & 0x0F
ti_oui = bytearray([0x00, 0x12, 0x4B])
ieee_addr = self.command_interface.cmdMemRead(addr_ieee_address_primary)
ieee_addr_end = self.command_interface.cmdMemRead(addr_ieee_address_primary + 4)
if ieee_addr[:3] == ti_oui:
ieee_addr += ieee_addr_end
else:
ieee_addr = ieee_addr_end + ieee_addr
mdebug(5, "CC2538 PG%d.%d: %dKB Flash, %dKB SRAM, CCFG at 0x%08X"
% (pg_major, pg_minor, self.size >> 10, sram,
self.bootloader_address))
mdebug(5, "Primary IEEE Address: %s" % (':'.join('%02X' % x for x in ieee_addr)))
def erase(self):
mdebug(5, "Erasing %s bytes starting at address 0x%08X" % (self.size, self.flash_start_addr))
return self.command_interface.cmdEraseMemory(self.flash_start_addr, self.size)
def read_memory(self, addr):
# CC2538's COMMAND_MEMORY_READ sends each 4-byte number in inverted
# byte order compared to what's written on the device
data = self.command_interface.cmdMemRead(addr)
return bytearray([data[x] for x in range(3, -1, -1)])
class CC26xx(Chip):
# Class constants
MISC_CONF_1 = 0x500010A0
PROTO_MASK_BLE = 0x01
PROTO_MASK_IEEE = 0x04
PROTO_MASK_BOTH = 0x05
def __init__(self, command_interface):
super(CC26xx, self).__init__(command_interface)
self.bootloader_dis_val = 0x00000000
self.crc_cmd = "cmdCRC32CC26xx"
ICEPICK_DEVICE_ID = 0x50001318
FCFG_USER_ID = 0x50001294
PRCM_RAMHWOPT = 0x40082250
FLASH_SIZE = 0x4003002C
addr_ieee_address_primary = 0x500012F0
ccfg_len = 88
ieee_address_secondary_offset = 0x20
bootloader_dis_offset = 0x30
sram = "Unknown"
# Determine CC13xx vs CC26xx via ICEPICK_DEVICE_ID::WAFER_ID and store
# PG revision
device_id = self.command_interface.cmdMemReadCC26xx(ICEPICK_DEVICE_ID)
wafer_id = (((device_id[3] & 0x0F) << 16) +
(device_id[2] << 8) +
(device_id[1] & 0xF0)) >> 4
pg_rev = (device_id[3] & 0xF0) >> 4
# Read FCFG1_USER_ID to get the package and supported protocols
user_id = self.command_interface.cmdMemReadCC26xx(FCFG_USER_ID)
package = {0x00: '4x4mm', 0x01: '5x5mm', 0x02: '7x7mm'}.get(user_id[2] & 0x03, "Unknown")
protocols = user_id[1] >> 4
# We can now detect the exact device
if wafer_id == 0xB99A:
chip = self._identify_cc26xx(pg_rev, protocols)
elif wafer_id == 0xB9BE:
chip = self._identify_cc13xx(pg_rev, protocols)
# Read flash size, calculate and store bootloader disable address
self.size = self.command_interface.cmdMemReadCC26xx(FLASH_SIZE)[0] * 4096
self.bootloader_address = self.size - ccfg_len + bootloader_dis_offset
self.addr_ieee_address_secondary = self.size - ccfg_len + ieee_address_secondary_offset
# RAM size
ramhwopt_size = self.command_interface.cmdMemReadCC26xx(PRCM_RAMHWOPT)[0] & 3
if ramhwopt_size == 3:
sram = "20KB"
elif ramhwopt_size == 2:
sram = "16KB"
else:
sram = "Unknown"
# Primary IEEE address. Stored with the MSB at the high address
ieee_addr = self.command_interface.cmdMemReadCC26xx(addr_ieee_address_primary + 4)[::-1]
ieee_addr += self.command_interface.cmdMemReadCC26xx(addr_ieee_address_primary)[::-1]
mdebug(5, "%s (%s): %dKB Flash, %s SRAM, CCFG.BL_CONFIG at 0x%08X"
% (chip, package, self.size >> 10, sram,
self.bootloader_address))
mdebug(5, "Primary IEEE Address: %s" % (':'.join('%02X' % x for x in ieee_addr)))
def _identify_cc26xx(self, pg, protocols):
chips_dict = {
CC26xx.PROTO_MASK_IEEE: 'CC2630',
CC26xx.PROTO_MASK_BLE: 'CC2640',
CC26xx.PROTO_MASK_BOTH: 'CC2650',
}
chip_str = chips_dict.get(protocols & CC26xx.PROTO_MASK_BOTH, "Unknown")
if pg == 1:
pg_str = "PG1.0"
elif pg == 3:
pg_str = "PG2.0"
elif pg == 7:
pg_str = "PG2.1"
elif pg == 8:
rev_minor = self.command_interface.cmdMemReadCC26xx(CC26xx.MISC_CONF_1)[0]
if rev_minor == 0xFF:
rev_minor = 0x00
pg_str = "PG2.%d" % (2 + rev_minor,)
return "%s %s" % (chip_str, pg_str)
def _identify_cc13xx(self, pg, protocols):
chip_str = "CC1310"
if protocols & CC26xx.PROTO_MASK_IEEE == CC26xx.PROTO_MASK_IEEE:
chip_str = "CC1350"
if pg == 0:
pg_str = "PG1.0"
elif pg == 2:
rev_minor = self.command_interface.cmdMemReadCC26xx(CC26xx.MISC_CONF_1)[0]
if rev_minor == 0xFF:
rev_minor = 0x00
pg_str = "PG2.%d" % (rev_minor,)
return "%s %s" % (chip_str, pg_str)
def erase(self):
mdebug(5, "Erasing all main bank flash sectors")
return self.command_interface.cmdBankErase()
def read_memory(self, addr):
# CC26xx COMMAND_MEMORY_READ returns contents in the same order as
# they are stored on the device
return self.command_interface.cmdMemReadCC26xx(addr)
def query_yes_no(question, default="yes"):
valid = {"yes":True, "y":True, "ye":True,
"no":False, "n":False}
@ -535,10 +902,11 @@ def print_version():
print('%s %s' % (sys.argv[0], version))
def usage():
print("""Usage: %s [-hqVewvr] [-l length] [-p port] [-b baud] [-a addr] [-i addr] [file.bin]
-h This help
print("""Usage: %s [-DhqVfewvr] [-l length] [-p port] [-b baud] [-a addr] [-i addr] [--bootloader-active-high] [--bootloader-invert-lines] [file.bin]
-h, --help This help
-q Quiet
-V Verbose
-f Force operation(s) without asking any questions
-e Erase (full)
-w Write
-v Verify (CRC32 check)
@ -548,6 +916,9 @@ def usage():
-b baud Baud speed (default: 500000)
-a addr Target address
-i, --ieee-address addr Set the secondary 64 bit IEEE address
--bootloader-active-high Use active high signals to enter bootloader
--bootloader-invert-lines Inverts the use of RTS and DTR to enter bootloader
-D, --disable-bootloader After finishing, disable the bootloader
--version Print script version
Examples:
@ -556,22 +927,14 @@ Examples:
""" % (sys.argv[0],sys.argv[0],sys.argv[0]))
def read(filename):
"""Read the file to be programmed and turn it into a binary"""
with open(filename, 'rb') as f:
bytes = f.read()
if PY3:
return bytes
else:
return [ord(x) for x in bytes]
if __name__ == "__main__":
conf = {
'port': 'auto',
'baud': 500000,
'force_speed' : 0,
'address': 0x00200000,
'address': None,
'force': 0,
'erase': 0,
'write': 0,
'verify': 0,
@ -579,12 +942,15 @@ if __name__ == "__main__":
'len': 0x80000,
'fname':'',
'ieee_address': 0,
'bootloader_active_high': False,
'bootloader_invert_lines' : False,
'disable-bootloader': 0
}
# http://www.python.org/doc/2.5.2/lib/module-getopt.html
try:
opts, args = getopt.getopt(sys.argv[1:], "hqVewvrp:b:a:l:i:", ['ieee-address=', 'version'])
opts, args = getopt.getopt(sys.argv[1:], "DhqVfewvrp:b:a:l:i:", ['help', 'ieee-address=', 'disable-bootloader', 'bootloader-active-high', 'bootloader-invert-lines', 'version'])
except getopt.GetoptError as err:
# print help information and exit:
print(str(err)) # will print something like "option -a not recognized"
@ -596,9 +962,11 @@ if __name__ == "__main__":
QUIET = 10
elif o == '-q':
QUIET = 0
elif o == '-h':
elif o == '-h' or o == '--help':
usage()
sys.exit(0)
elif o == '-f':
conf['force'] = 1
elif o == '-e':
conf['erase'] = 1
elif o == '-w':
@ -618,6 +986,12 @@ if __name__ == "__main__":
conf['len'] = eval(a)
elif o == '-i' or o == '--ieee-address':
conf['ieee_address'] = str(a)
elif o == '--bootloader-active-high':
conf['bootloader_active_high'] = True
elif o == '--bootloader-invert-lines':
conf['bootloader_invert_lines'] = True
elif o == '-D' or o == '--disable-bootloader':
conf['disable-bootloader'] = 1
elif o == '--version':
print_version()
sys.exit(0)
@ -633,23 +1007,27 @@ if __name__ == "__main__":
raise Exception('No file path given.')
if conf['write'] and conf['read']:
if not query_yes_no("You are reading and writing to the same file. This will overwrite your input file. "\
"Do you want to continue?","no"):
if not ( conf['force'] or query_yes_no("You are reading and writing to the same file. This will overwrite your input file. "\
"Do you want to continue?","no") ):
raise Exception('Aborted by user.')
if conf['erase'] and conf['read'] and not conf['write']:
if not query_yes_no("You are about to erase your target before reading. "\
"Do you want to continue?","no"):
if not ( conf['force'] or query_yes_no("You are about to erase your target before reading. "\
"Do you want to continue?","no") ):
raise Exception('Aborted by user.')
if conf['read'] and not conf['write'] and conf['verify']:
raise Exception('Verify after read not implemented.')
if conf['len'] < 0:
raise Exception('Length must be positive but %d was provided'
% (conf['len'],))
# Try and find the port automatically
if conf['port'] == 'auto':
ports = []
# Get a list of all USB-like names in /dev
for name in ['tty.usbserial', 'ttyUSB', 'tty.usbmodem']:
for name in ['tty.usbserial', 'ttyUSB', 'tty.usbmodem', 'tty.SLAB_USBtoUART']:
ports.extend(glob.glob('/dev/%s*' % name))
ports = sorted(ports)
@ -662,29 +1040,18 @@ if __name__ == "__main__":
cmd = CommandInterface()
cmd.open(conf['port'], conf['baud'])
cmd.invoke_bootloader(conf['bootloader_active_high'], conf['bootloader_invert_lines'])
mdebug(5, "Opening port %(port)s, baud %(baud)d" % {'port':conf['port'],
'baud':conf['baud']})
if conf['write'] or conf['verify']:
mdebug(5, "Reading data from %s" % args[0])
data = read(args[0])
firmware = FirmwareFile(args[0])
mdebug(5, "Connecting to target...")
if not cmd.sendSynch():
raise CmdException("Can't connect to target. Ensure boot loader is started. (no answer on synch sequence)")
if conf['force_speed'] != 1:
if cmd.cmdSetXOsc(): #switch to external clock source
cmd.close()
conf['baud']=1000000
cmd.open(conf['port'], conf['baud'])
mdebug(6, "Opening port %(port)s, baud %(baud)d" % {'port':conf['port'],'baud':conf['baud']})
mdebug(6, "Reconnecting to target at higher speed...")
if (cmd.sendSynch()!=1):
raise CmdException("Can't connect to target after clock source switch. (Check external crystal)")
else:
raise CmdException("Can't switch target to external clock source. (Try forcing speed)")
# if (cmd.cmdPing() != 1):
# raise CmdException("Can't connect to target. Ensure boot loader is started. (no answer on ping command)")
@ -692,24 +1059,38 @@ if __name__ == "__main__":
chip_id_str = CHIP_ID_STRS.get(chip_id, None)
if chip_id_str is None:
mdebug(0, 'Warning: unrecognized chip ID 0x%x' % chip_id)
mdebug(10, ' Unrecognized chip ID. Trying CC13xx/CC26xx')
device = CC26xx(cmd)
else:
mdebug(5, " Target id 0x%x, %s" % (chip_id, chip_id_str))
mdebug(10, " Target id 0x%x, %s" % (chip_id, chip_id_str))
device = CC2538(cmd)
if conf['erase']:
# we only do full erase for now (CC2538)
address = 0x00200000 #flash start addr for cc2538
size = 0x80000 #total flash size cc2538
mdebug(5, "Erasing %s bytes starting at address 0x%x" % (size, address))
# Choose a good default address unless the user specified -a
if conf['address'] is None:
conf['address'] = device.flash_start_addr
if cmd.cmdEraseMemory(address, size):
if conf['force_speed'] != 1 and device.has_cmd_set_xosc:
if cmd.cmdSetXOsc(): #switch to external clock source
cmd.close()
conf['baud'] = 1000000
cmd.open(conf['port'], conf['baud'])
mdebug(6, "Opening port %(port)s, baud %(baud)d" % {'port':conf['port'], 'baud':conf['baud']})
mdebug(6, "Reconnecting to target at higher speed...")
if (cmd.sendSynch() != 1):
raise CmdException("Can't connect to target after clock source switch. (Check external crystal)")
else:
raise CmdException("Can't switch target to external clock source. (Try forcing speed)")
if conf['erase']:
# we only do full erase for now
if device.erase():
mdebug(5, " Erase done")
else:
raise CmdException("Erase failed")
if conf['write']:
# TODO: check if boot loader back-door is open, need to read flash size first to get address
if cmd.writeMemory(conf['address'], data):
if cmd.writeMemory(conf['address'], firmware.bytes):
mdebug(5, " Write done ")
else:
raise CmdException("Write failed ")
@ -717,8 +1098,8 @@ if __name__ == "__main__":
if conf['verify']:
mdebug(5,"Verifying by comparing CRC32 calculations.")
crc_local = (binascii.crc32(bytearray(data))& 0xffffffff)
crc_target = cmd.cmdCRC32(conf['address'],len(data)) #CRC of target will change according to length input file
crc_local = firmware.crc32()
crc_target = device.crc(conf['address'], len(firmware.bytes)) #CRC of target will change according to length input file
if crc_local == crc_target:
mdebug(5, " Verified (match: 0x%08x)" % crc_local)
@ -735,27 +1116,32 @@ if __name__ == "__main__":
mdebug(5, "Setting IEEE address to %s" % (':'.join(['%02x' % ord(b) for b in struct.pack('>Q', ieee_addr)])))
ieee_addr_bytes = [ord(b) for b in struct.pack('<Q', ieee_addr)]
if cmd.writeMemory(ADDR_IEEE_ADDRESS_SECONDARY, ieee_addr_bytes):
if cmd.writeMemory(device.addr_ieee_address_secondary, ieee_addr_bytes):
mdebug(5, " Set address done ")
else:
raise CmdException("Set address failed ")
if conf['read']:
length = conf['len']
if length < 4: # reading 4 bytes at a time
length = 4
else:
length = length + (length % 4)
# Round up to a 4-byte boundary
length = (length + 3) & ~0x03
mdebug(5, "Reading %s bytes starting at address 0x%x" % (length, conf['address']))
f = file(args[0], 'w').close() #delete previous file
for i in range(0,(length/4)):
rdata = cmd.cmdMemRead(conf['address']+(i*4)) #reading 4 bytes at a time
mdebug(5, " 0x%x: 0x%02x%02x%02x%02x" % (conf['address']+(i*4), ord(rdata[3]), ord(rdata[2]), ord(rdata[1]), ord(rdata[0])), '\r')
file(args[0], 'ab').write(''.join(reversed(rdata)))
with open(args[0], 'wb') as f:
for i in range(0, length >> 2):
rdata = device.read_memory(conf['address'] + (i * 4)) #reading 4 bytes at a time
mdebug(5, " 0x%x: 0x%02x%02x%02x%02x" % (conf['address'] + (i * 4), rdata[0], rdata[1], rdata[2], rdata[3]), '\r')
f.write(rdata)
f.close()
mdebug(5, " Read done ")
if conf['disable-bootloader']:
device.disable_bootloader()
cmd.cmdReset()
except Exception as err:
if QUIET >= 10:
traceback.print_exc()
exit('ERROR: %s' % str(err))

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