Bump esptool to 2.2

This commit is contained in:
Marcel Stör 2017-12-18 15:24:17 +01:00
parent a6aae0c7fc
commit 13961407fe
2 changed files with 400 additions and 220 deletions

14
Main.py
View File

@ -14,7 +14,7 @@ from esptool import ESPLoader
from esptool import NotImplementedInROMError
from argparse import Namespace
__version__ = "2.1"
__version__ = "2.2"
__flash_help__ = '''
<p>This setting is highly dependent on your device!<p>
<p>
@ -23,9 +23,9 @@ __flash_help__ = '''
and in the <a style="color: #004CE5;" href="https://github.com/espressif/esptool/#flash-modes">esptool
documentation</a>
<ul>
<li>Most ESP32 and ESP8266 ESP-12 use 'dio'.</li>
<li>Most ESP8266 ESP-01/07 use 'qio'.</li>
<li>ESP8285 requires 'dout'.</li>
<li>Most ESP32 and ESP8266 ESP-12 use DIO.</li>
<li>Most ESP8266 ESP-01/07 use QIO.</li>
<li>ESP8285 requires DOUT.</li>
</ul>
</p>
'''
@ -246,9 +246,9 @@ class NodeMcuFlasher(wx.Frame):
sizer.Add(radio_button)
sizer.AddSpacer(10)
add_flash_mode_radio_button(flashmode_boxsizer, 0, "qio", "Quad I/O (qio)")
add_flash_mode_radio_button(flashmode_boxsizer, 1, "dio", "Dual I/O (dio)")
add_flash_mode_radio_button(flashmode_boxsizer, 2, "dout", "Dual Output (dout)")
add_flash_mode_radio_button(flashmode_boxsizer, 0, "qio", "Quad I/O (QIO)")
add_flash_mode_radio_button(flashmode_boxsizer, 1, "dio", "Dual I/O (DIO)")
add_flash_mode_radio_button(flashmode_boxsizer, 2, "dout", "Dual Output (DOUT)")
erase_boxsizer = wx.BoxSizer(wx.HORIZONTAL)

View File

@ -16,29 +16,43 @@
# this program; if not, write to the Free Software Foundation, Inc., 51 Franklin
# Street, Fifth Floor, Boston, MA 02110-1301 USA.
from __future__ import print_function, division
from __future__ import division, print_function
import argparse
import base64
import copy
import hashlib
import inspect
import io
import os
import serial
import shlex
import struct
import sys
import time
import base64
import zlib
import shlex
__version__ = "2.0.1"
import serial
__version__ = "2.2"
MAX_UINT32 = 0xffffffff
MAX_UINT24 = 0xffffff
DEFAULT_TIMEOUT = 3 # timeout for most flash operations
START_FLASH_TIMEOUT = 20 # timeout for starting flash (may perform erase)
CHIP_ERASE_TIMEOUT = 120 # timeout for full chip erase
SYNC_TIMEOUT = 0.1 # timeout for syncing with bootloader
DEFAULT_TIMEOUT = 3 # timeout for most flash operations
START_FLASH_TIMEOUT = 20 # timeout for starting flash (may perform erase)
CHIP_ERASE_TIMEOUT = 120 # timeout for full chip erase
MAX_TIMEOUT = CHIP_ERASE_TIMEOUT * 2 # longest any command can run
SYNC_TIMEOUT = 0.1 # timeout for syncing with bootloader
MD5_TIMEOUT_PER_MB = 8 # timeout (per megabyte) for calculating md5sum
ERASE_REGION_TIMEOUT_PER_MB = 30 # timeout (per megabyte) for erasing a region
def timeout_per_mb(seconds_per_mb, size_bytes):
""" Scales timeouts which are size-specific """
result = seconds_per_mb * (size_bytes / 1e6)
if result < DEFAULT_TIMEOUT:
return DEFAULT_TIMEOUT
return result
DETECTED_FLASH_SIZES = {0x12: '256KB', 0x13: '512KB', 0x14: '1MB',
@ -157,7 +171,7 @@ class ESPLoader(object):
# The number of bytes in the UART response that signify command status
STATUS_BYTES_LENGTH = 2
def __init__(self, port=DEFAULT_PORT, baud=ESP_ROM_BAUD):
def __init__(self, port=DEFAULT_PORT, baud=ESP_ROM_BAUD, trace_enabled=False):
"""Base constructor for ESPLoader bootloader interaction
Don't call this constructor, either instantiate ESP8266ROM
@ -173,12 +187,13 @@ class ESPLoader(object):
self._port = port
else:
self._port = serial.serial_for_url(port)
self._slip_reader = slip_reader(self._port)
self._slip_reader = slip_reader(self._port, self.trace)
# setting baud rate in a separate step is a workaround for
# CH341 driver on some Linux versions (this opens at 9600 then
# sets), shouldn't matter for other platforms/drivers. See
# https://github.com/espressif/esptool/issues/44#issuecomment-107094446
self._set_port_baudrate(baud)
self._trace_enabled = trace_enabled
def _set_port_baudrate(self, baud):
try:
@ -187,7 +202,7 @@ class ESPLoader(object):
raise FatalError("Failed to set baud rate %d. The driver may not support this rate." % baud)
@staticmethod
def detect_chip(port=DEFAULT_PORT, baud=ESP_ROM_BAUD, connect_mode='default_reset'):
def detect_chip(port=DEFAULT_PORT, baud=ESP_ROM_BAUD, connect_mode='default_reset', trace_enabled=False):
""" Use serial access to detect the chip type.
We use the UART's datecode register for this, it's mapped at
@ -198,7 +213,7 @@ class ESPLoader(object):
This routine automatically performs ESPLoader.connect() (passing
connect_mode parameter) as part of querying the chip.
"""
detect_port = ESPLoader(port, baud)
detect_port = ESPLoader(port, baud, trace_enabled=trace_enabled)
detect_port.connect(connect_mode)
print('Detecting chip type...', end='')
sys.stdout.flush()
@ -207,7 +222,7 @@ class ESPLoader(object):
for cls in [ESP8266ROM, ESP32ROM]:
if date_reg == cls.DATE_REG_VALUE:
# don't connect a second time
inst = cls(detect_port._port, baud)
inst = cls(detect_port._port, baud, trace_enabled=trace_enabled)
print(' %s' % inst.CHIP_NAME)
return inst
print('')
@ -222,8 +237,21 @@ class ESPLoader(object):
buf = b'\xc0' \
+ (packet.replace(b'\xdb',b'\xdb\xdd').replace(b'\xc0',b'\xdb\xdc')) \
+ b'\xc0'
self.trace("Write %d bytes: %r", len(buf), buf)
self._port.write(buf)
def trace(self, message, *format_args):
if self._trace_enabled:
now = time.time()
try:
delta = now - self._last_trace
except AttributeError:
delta = 0.0
self._last_trace = now
prefix = "TRACE +%.3f " % delta
print(prefix + (message % format_args))
""" Calculate checksum of a blob, as it is defined by the ROM """
@staticmethod
def checksum(data, state=ESP_CHECKSUM_MAGIC):
@ -236,39 +264,46 @@ class ESPLoader(object):
return state
""" Send a request and read the response """
def command(self, op=None, data=b"", chk=0, wait_response=True):
def command(self, op=None, data=b"", chk=0, wait_response=True, timeout=DEFAULT_TIMEOUT):
if op is not None:
self.trace("command op=0x%02x data len=%s wait_response=%d timeout=%.3f data=%r",
op, len(data), 1 if wait_response else 0, timeout, data)
pkt = struct.pack(b'<BBHI', 0x00, op, len(data), chk) + data
self.write(pkt)
if not wait_response:
return
# tries to get a response until that response has the
# same operation as the request or a retries limit has
# exceeded. This is needed for some esp8266s that
# reply with more sync responses than expected.
for retry in range(100):
p = self.read()
if len(p) < 8:
continue
(resp, op_ret, len_ret, val) = struct.unpack('<BBHI', p[:8])
if resp != 1:
continue
data = p[8:]
if op is None or op_ret == op:
return val, data
saved_timeout = self._port.timeout
self._port.timeout = min(timeout, MAX_TIMEOUT)
try:
# tries to get a response until that response has the
# same operation as the request or a retries limit has
# exceeded. This is needed for some esp8266s that
# reply with more sync responses than expected.
for retry in range(100):
p = self.read()
if len(p) < 8:
continue
(resp, op_ret, len_ret, val) = struct.unpack('<BBHI', p[:8])
if resp != 1:
continue
data = p[8:]
if op is None or op_ret == op:
return val, data
finally:
self._port.timeout = saved_timeout
raise FatalError("Response doesn't match request")
def check_command(self, op_description, op=None, data=b'', chk=0):
def check_command(self, op_description, op=None, data=b'', chk=0, timeout=DEFAULT_TIMEOUT):
"""
Execute a command with 'command', check the result code and throw an appropriate
FatalError if it fails.
Returns the "result" of a successful command.
"""
val, data = self.command(op, data, chk)
val, data = self.command(op, data, chk, timeout=timeout)
# things are a bit weird here, bear with us
@ -289,10 +324,11 @@ class ESPLoader(object):
def flush_input(self):
self._port.flushInput()
self._slip_reader = slip_reader(self._port)
self._slip_reader = slip_reader(self._port, self.trace)
def sync(self):
self.command(self.ESP_SYNC, b'\x07\x07\x12\x20' + 32 * b'\x55')
self.command(self.ESP_SYNC, b'\x07\x07\x12\x20' + 32 * b'\x55',
timeout=SYNC_TIMEOUT)
for i in range(7):
self.command()
@ -334,13 +370,11 @@ class ESPLoader(object):
time.sleep(0.05)
self._port.setDTR(False) # IO0=HIGH, done
self._port.timeout = SYNC_TIMEOUT
for _ in range(5):
try:
self.flush_input()
self._port.flushOutput()
self.sync()
self._port.timeout = DEFAULT_TIMEOUT
return None
except FatalError as e:
if esp32r0_delay:
@ -409,21 +443,25 @@ class ESPLoader(object):
num_blocks = (size + self.FLASH_WRITE_SIZE - 1) // self.FLASH_WRITE_SIZE
erase_size = self.get_erase_size(offset, size)
self._port.timeout = START_FLASH_TIMEOUT
t = time.time()
if self.IS_STUB:
timeout = DEFAULT_TIMEOUT
else:
timeout = timeout_per_mb(ERASE_REGION_TIMEOUT_PER_MB, size) # ROM performs the erase up front
self.check_command("enter Flash download mode", self.ESP_FLASH_BEGIN,
struct.pack('<IIII', erase_size, num_blocks, self.FLASH_WRITE_SIZE, offset))
struct.pack('<IIII', erase_size, num_blocks, self.FLASH_WRITE_SIZE, offset),
timeout=timeout)
if size != 0 and not self.IS_STUB:
print("Took %.2fs to erase flash block" % (time.time() - t))
self._port.timeout = DEFAULT_TIMEOUT
return num_blocks
""" Write block to flash """
def flash_block(self, data, seq):
def flash_block(self, data, seq, timeout=DEFAULT_TIMEOUT):
self.check_command("write to target Flash after seq %d" % seq,
self.ESP_FLASH_DATA,
struct.pack('<IIII', len(data), seq, 0, 0) + data,
self.checksum(data))
self.checksum(data),
timeout=timeout)
""" Leave flash mode and run/reboot """
def flash_finish(self, reboot=False):
@ -485,26 +523,27 @@ class ESPLoader(object):
num_blocks = (compsize + self.FLASH_WRITE_SIZE - 1) // self.FLASH_WRITE_SIZE
erase_blocks = (size + self.FLASH_WRITE_SIZE - 1) // self.FLASH_WRITE_SIZE
self._port.timeout = START_FLASH_TIMEOUT
t = time.time()
if self.IS_STUB:
write_size = size # stub expects number of bytes here, manages erasing internally
timeout = DEFAULT_TIMEOUT
else:
write_size = erase_blocks * self.FLASH_WRITE_SIZE # ROM expects rounded up to erase block size
timeout = timeout_per_mb(ERASE_REGION_TIMEOUT_PER_MB, write_size) # ROM performs the erase up front
print("Compressed %d bytes to %d..." % (size, compsize))
self.check_command("enter compressed flash mode", self.ESP_FLASH_DEFL_BEGIN,
struct.pack('<IIII', write_size, num_blocks, self.FLASH_WRITE_SIZE, offset))
struct.pack('<IIII', write_size, num_blocks, self.FLASH_WRITE_SIZE, offset),
timeout=timeout)
if size != 0 and not self.IS_STUB:
# (stub erases as it writes, but ROM loaders erase on begin)
print("Took %.2fs to erase flash block" % (time.time() - t))
self._port.timeout = DEFAULT_TIMEOUT
return num_blocks
""" Write block to flash, send compressed """
@stub_and_esp32_function_only
def flash_defl_block(self, data, seq):
def flash_defl_block(self, data, seq, timeout=DEFAULT_TIMEOUT):
self.check_command("write compressed data to flash after seq %d" % seq,
self.ESP_FLASH_DEFL_DATA, struct.pack('<IIII', len(data), seq, 0, 0) + data, self.checksum(data))
self.ESP_FLASH_DEFL_DATA, struct.pack('<IIII', len(data), seq, 0, 0) + data, self.checksum(data), timeout=timeout)
""" Leave compressed flash mode and run/reboot """
@stub_and_esp32_function_only
@ -521,7 +560,9 @@ class ESPLoader(object):
def flash_md5sum(self, addr, size):
# the MD5 command returns additional bytes in the standard
# command reply slot
res = self.check_command('calculate md5sum', self.ESP_SPI_FLASH_MD5, struct.pack('<IIII', addr, size, 0, 0))
timeout = timeout_per_mb(MD5_TIMEOUT_PER_MB, size)
res = self.check_command('calculate md5sum', self.ESP_SPI_FLASH_MD5, struct.pack('<IIII', addr, size, 0, 0),
timeout=timeout)
if len(res) == 32:
return res.decode("utf-8") # already hex formatted
@ -533,7 +574,9 @@ class ESPLoader(object):
@stub_and_esp32_function_only
def change_baud(self, baud):
print("Changing baud rate to %d" % baud)
self.command(self.ESP_CHANGE_BAUDRATE, struct.pack('<II', baud, 0))
# stub takes the new baud rate and the old one
second_arg = self._port.baudrate if self.IS_STUB else 0
self.command(self.ESP_CHANGE_BAUDRATE, struct.pack('<II', baud, second_arg))
print("Changed.")
self._set_port_baudrate(baud)
time.sleep(0.05) # get rid of crap sent during baud rate change
@ -542,11 +585,8 @@ class ESPLoader(object):
@stub_function_only
def erase_flash(self):
# depending on flash chip model the erase may take this long (maybe longer!)
self._port.timeout = CHIP_ERASE_TIMEOUT
try:
self.check_command("erase flash", self.ESP_ERASE_FLASH)
finally:
self._port.timeout = DEFAULT_TIMEOUT
self.check_command("erase flash", self.ESP_ERASE_FLASH,
timeout=CHIP_ERASE_TIMEOUT)
@stub_function_only
def erase_region(self, offset, size):
@ -554,7 +594,8 @@ class ESPLoader(object):
raise FatalError("Offset to erase from must be a multiple of 4096")
if size % self.FLASH_SECTOR_SIZE != 0:
raise FatalError("Size of data to erase must be a multiple of 4096")
self.check_command("erase region", self.ESP_ERASE_REGION, struct.pack('<II', offset, size))
timeout = timeout_per_mb(ERASE_REGION_TIMEOUT_PER_MB, size)
self.check_command("erase region", self.ESP_ERASE_REGION, struct.pack('<II', offset, size), timeout=timeout)
@stub_function_only
def read_flash(self, offset, length, progress_fn=None):
@ -828,8 +869,17 @@ class ESP8266ROM(ESPLoader):
BOOTLOADER_FLASH_OFFSET = 0
def get_efuses(self):
# Return the 128 bits of ESP8266 efuse as a single Python integer
return (self.read_reg(0x3ff0005c) << 96 |
self.read_reg(0x3ff00058) << 64 |
self.read_reg(0x3ff00054) << 32 |
self.read_reg(0x3ff00050))
def get_chip_description(self):
return "ESP8266"
efuses = self.get_efuses()
is_8285 = (efuses & ((1 << 4) | 1 << 80)) != 0 # One or the other efuse bit is set for ESP8285
return "ESP8285" if is_8285 else "ESP8266EX"
def flash_spi_attach(self, hspi_arg):
if self.IS_STUB:
@ -893,6 +943,7 @@ class ESP8266StubLoader(ESP8266ROM):
def __init__(self, rom_loader):
self._port = rom_loader._port
self._trace_enabled = rom_loader._trace_enabled
self.flush_input() # resets _slip_reader
def get_erase_size(self, offset, size):
@ -914,7 +965,7 @@ class ESP32ROM(ESPLoader):
IROM_MAP_START = 0x400d0000
IROM_MAP_END = 0x40400000
DROM_MAP_START = 0x3F400000
DROM_MAP_END = 0x3F700000
DROM_MAP_END = 0x3F800000
# ESP32 uses a 4 byte status reply
STATUS_BYTES_LENGTH = 4
@ -949,6 +1000,7 @@ class ESP32ROM(ESPLoader):
0: "ESP32D0WDQ6",
1: "ESP32D0WDQ5",
2: "ESP32D2WDQ5",
5: "ESP32-PICO-D4",
}.get(pkg_version, "unknown ESP32")
return "%s (revision %s)" % (chip_name, silicon_rev)
@ -985,6 +1037,7 @@ class ESP32StubLoader(ESP32ROM):
def __init__(self, rom_loader):
self._port = rom_loader._port
self._trace_enabled = rom_loader._trace_enabled
self.flush_input() # resets _slip_reader
@ -1036,6 +1089,18 @@ class ImageSegment(object):
a new address. """
return ImageSegment(new_addr, self.data, 0)
def split_image(self, split_len):
""" Return a new ImageSegment which splits "split_len" bytes
from the beginning of the data. Remaining bytes are kept in
this segment object (and the start address is adjusted to match.) """
result = copy.copy(self)
result.data = self.data[:split_len]
self.data = self.data[split_len:]
self.addr += split_len
self.file_offs = None
result.file_offs = None
return result
def __repr__(self):
r = "len 0x%05x load 0x%08x" % (len(self.data), self.addr)
if self.file_offs is not None:
@ -1265,11 +1330,12 @@ class ESP32FirmwareImage(BaseFirmwareImage):
ROM_LOADER = ESP32ROM
# 16 byte extended header contains WP pin number (byte), then 6 half-byte drive stength
# config fields, then 12 reserved bytes. None of this is exposed in esptool.py right now,
# but we need to set WP to 0xEE (disabled) to avoid problems when remapping SPI flash
# pins via efuse (for example on ESP32-D2WD).
EXTENDED_HEADER = [0xEE] + ([0] * 15)
# ROM bootloader will read the wp_pin field if SPI flash
# pins are remapped via flash. IDF actually enables QIO only
# from software bootloader, so this can be ignored. But needs
# to be set to this value so ROM bootloader will skip it.
WP_PIN_DISABLED = 0xEE
EXTENDED_HEADER_STRUCT_FMT = "B" * 16
def __init__(self, load_file=None):
@ -1277,19 +1343,35 @@ class ESP32FirmwareImage(BaseFirmwareImage):
self.flash_mode = 0
self.flash_size_freq = 0
self.version = 1
self.wp_pin = self.WP_PIN_DISABLED
# SPI pin drive levels
self.clk_drv = 0
self.q_drv = 0
self.d_drv = 0
self.cs_drv = 0
self.hd_drv = 0
self.wp_drv = 0
self.append_digest = True
if load_file is not None:
segments = self.load_common_header(load_file, ESPLoader.ESP_IMAGE_MAGIC)
additional_header = list(struct.unpack(self.EXTENDED_HEADER_STRUCT_FMT, load_file.read(16)))
start = load_file.tell()
# check these bytes are unused
if additional_header != self.EXTENDED_HEADER:
print("WARNING: ESP32 image header contains unknown flags. Possibly this image is from a different version of esptool.py")
segments = self.load_common_header(load_file, ESPLoader.ESP_IMAGE_MAGIC)
self.load_extended_header(load_file)
for _ in range(segments):
self.load_segment(load_file)
self.checksum = self.read_checksum(load_file)
if self.append_digest:
end = load_file.tell()
self.stored_digest = load_file.read(32)
load_file.seek(start)
calc_digest = hashlib.sha256()
calc_digest.update(load_file.read(end - start))
self.calc_digest = calc_digest.digest() # TODO: decide what to do here?
def is_flash_addr(self, addr):
return (ESP32ROM.IROM_MAP_START <= addr < ESP32ROM.IROM_MAP_END) \
or (ESP32ROM.DROM_MAP_START <= addr < ESP32ROM.DROM_MAP_END)
@ -1302,64 +1384,136 @@ class ESP32FirmwareImage(BaseFirmwareImage):
pass # TODO: add warnings for ESP32 segment offset/size combinations that are wrong
def save(self, filename):
padding_segments = 0
with open(filename, 'wb') as f:
total_segments = 0
with io.BytesIO() as f: # write file to memory first
self.write_common_header(f, self.segments)
# first 4 bytes of header are read by ROM bootloader for SPI
# config, but currently unused
f.write(struct.pack(self.EXTENDED_HEADER_STRUCT_FMT, *self.EXTENDED_HEADER))
self.save_extended_header(f)
checksum = ESPLoader.ESP_CHECKSUM_MAGIC
last_addr = None
for segment in sorted(self.segments, key=lambda s:s.addr):
# IROM/DROM segment flash mappings need to align on
# 64kB boundaries.
# split segments into flash-mapped vs ram-loaded, and take copies so we can mutate them
flash_segments = [copy.deepcopy(s) for s in sorted(self.segments, key=lambda s:s.addr) if self.is_flash_addr(s.addr)]
ram_segments = [copy.deepcopy(s) for s in sorted(self.segments, key=lambda s:s.addr) if not self.is_flash_addr(s.addr)]
IROM_ALIGN = 65536
# check for multiple ELF sections that are mapped in the same flash mapping region.
# this is usually a sign of a broken linker script, but if you have a legitimate
# use case then let us know (we can merge segments here, but as a rule you probably
# want to merge them in your linker script.)
if len(flash_segments) > 0:
last_addr = flash_segments[0].addr
for segment in flash_segments[1:]:
if segment.addr // IROM_ALIGN == last_addr // IROM_ALIGN:
raise FatalError(("Segment loaded at 0x%08x lands in same 64KB flash mapping as segment loaded at 0x%08x. " +
"Can't generate binary. Suggest changing linker script or ELF to merge sections.") %
(segment.addr, last_addr))
last_addr = segment.addr
def get_alignment_data_needed(segment):
# Actual alignment (in data bytes) required for a segment header: positioned so that
# after we write the next 8 byte header, file_offs % IROM_ALIGN == segment.addr % IROM_ALIGN
#
# TODO: intelligently order segments to reduce wastage
# by squeezing smaller DRAM/IRAM segments into the
# 64kB padding space.
IROM_ALIGN = 65536
# (this is because the segment's vaddr may not be IROM_ALIGNed, more likely is aligned
# IROM_ALIGN+0x18 to account for the binary file header
align_past = (segment.addr % IROM_ALIGN) - self.SEG_HEADER_LEN
pad_len = (IROM_ALIGN - (f.tell() % IROM_ALIGN)) + align_past
if pad_len == 0 or pad_len == IROM_ALIGN:
return 0 # already aligned
# check for multiple ELF sections that live in the same flash mapping region.
# this is usually a sign of a broken linker script, but if you have a legitimate
# use case then let us know (we can merge segments here, but as a rule you probably
# want to merge them in your linker script.)
if last_addr is not None and self.is_flash_addr(last_addr) \
and self.is_flash_addr(segment.addr) and segment.addr // IROM_ALIGN == last_addr // IROM_ALIGN:
raise FatalError(("Segment loaded at 0x%08x lands in same 64KB flash mapping as segment loaded at 0x%08x. " +
"Can't generate binary. Suggest changing linker script or ELF to merge sections.") %
(segment.addr, last_addr))
last_addr = segment.addr
# subtract SEG_HEADER_LEN a second time, as the padding block has a header as well
pad_len -= self.SEG_HEADER_LEN
if pad_len < 0:
pad_len += IROM_ALIGN
return pad_len
if self.is_flash_addr(segment.addr):
# Actual alignment required for the segment header: positioned so that
# after we write the next 8 byte header, file_offs % IROM_ALIGN == segment.addr % IROM_ALIGN
#
# (this is because the segment's vaddr may not be IROM_ALIGNed, more likely is aligned
# IROM_ALIGN+0x10 to account for longest possible header.
align_past = (segment.addr % IROM_ALIGN) - self.SEG_HEADER_LEN
assert (align_past + self.SEG_HEADER_LEN) == (segment.addr % IROM_ALIGN)
# subtract SEG_HEADER_LEN a second time, as the padding block has a header as well
pad_len = (IROM_ALIGN - (f.tell() % IROM_ALIGN)) + align_past - self.SEG_HEADER_LEN
if pad_len < 0:
pad_len += IROM_ALIGN
if pad_len > 0:
null = ImageSegment(0, b'\x00' * pad_len, f.tell())
checksum = self.save_segment(f, null, checksum)
padding_segments += 1
# verify that after the 8 byte header is added, were are at the correct offset relative to the segment's vaddr
# try to fit each flash segment on a 64kB aligned boundary
# by padding with parts of the non-flash segments...
while len(flash_segments) > 0:
segment = flash_segments[0]
pad_len = get_alignment_data_needed(segment)
if pad_len > 0: # need to pad
if len(ram_segments) > 0 and pad_len > self.SEG_HEADER_LEN:
pad_segment = ram_segments[0].split_image(pad_len)
if len(ram_segments[0].data) == 0:
ram_segments.pop(0)
else:
pad_segment = ImageSegment(0, b'\x00' * pad_len, f.tell())
checksum = self.save_segment(f, pad_segment, checksum)
total_segments += 1
else:
# write the flash segment
assert (f.tell() + 8) % IROM_ALIGN == segment.addr % IROM_ALIGN
checksum = self.save_segment(f, segment, checksum)
flash_segments.pop(0)
total_segments += 1
# flash segments all written, so write any remaining RAM segments
for segment in ram_segments:
checksum = self.save_segment(f, segment, checksum)
total_segments += 1
# done writing segments
self.append_checksum(f, checksum)
# kinda hacky: go back to the initial header and write the new segment count
# that includes padding segments. Luckily(?) this header is not checksummed
# that includes padding segments. This header is not checksummed
image_length = f.tell()
f.seek(1)
try:
f.write(chr(len(self.segments) + padding_segments))
f.write(chr(total_segments))
except TypeError: # Python 3
f.write(bytes([len(self.segments) + padding_segments]))
f.write(bytes([total_segments]))
if self.append_digest:
# calculate the SHA256 of the whole file and append it
f.seek(0)
digest = hashlib.sha256()
digest.update(f.read(image_length))
f.write(digest.digest())
with open(filename, 'wb') as real_file:
real_file.write(f.getvalue())
def load_extended_header(self, load_file):
def split_byte(n):
return (n & 0x0F, (n >> 4) & 0x0F)
fields = list(struct.unpack(self.EXTENDED_HEADER_STRUCT_FMT, load_file.read(16)))
self.wp_pin = fields[0]
# SPI pin drive stengths are two per byte
self.clk_drv, self.q_drv = split_byte(fields[1])
self.d_drv, self.cs_drv = split_byte(fields[2])
self.hd_drv, self.wp_drv = split_byte(fields[3])
if fields[15] in [0, 1]:
self.append_digest = (fields[15] == 1)
else:
raise RuntimeError("Invalid value for append_digest field (0x%02x). Should be 0 or 1.", fields[15])
# remaining fields in the middle should all be zero
if any(f for f in fields[4:15] if f != 0):
print("Warning: some reserved header fields have non-zero values. This image may be from a newer esptool.py?")
def save_extended_header(self, save_file):
def join_byte(ln,hn):
return (ln & 0x0F) + ((hn & 0x0F) << 4)
append_digest = 1 if self.append_digest else 0
fields = [self.wp_pin,
join_byte(self.clk_drv, self.q_drv),
join_byte(self.d_drv, self.cs_drv),
join_byte(self.hd_drv, self.wp_drv)]
fields += [0] * 11
fields += [append_digest]
packed = struct.pack(self.EXTENDED_HEADER_STRUCT_FMT, *fields)
save_file.write(packed)
class ELFFile(object):
@ -1443,7 +1597,7 @@ class ELFFile(object):
self.sections = prog_sections
def slip_reader(port):
def slip_reader(port, trace_function):
"""Generator to read SLIP packets from a serial port.
Yields one full SLIP packet at a time, raises exception on timeout or invalid data.
@ -1456,9 +1610,11 @@ def slip_reader(port):
waiting = port.inWaiting()
read_bytes = port.read(1 if waiting == 0 else waiting)
if read_bytes == b'':
raise FatalError("Timed out waiting for packet %s" % ("header" if partial_packet is None else "content"))
waiting_for = "header" if partial_packet is None else "content"
trace_function("Timed out waiting for packet %s", waiting_for)
raise FatalError("Timed out waiting for packet %s" % waiting_for)
trace_function("Read %d bytes: %r", len(read_bytes), read_bytes)
for b in read_bytes:
if type(b) is int:
b = bytes([b]) # python 2/3 compat
@ -1466,6 +1622,8 @@ def slip_reader(port):
if b == b'\xc0':
partial_packet = b""
else:
trace_function("Read invalid data: %r", read_bytes)
trace_function("Remaining data in serial buffer: %r", port.read(port.inWaiting()))
raise FatalError('Invalid head of packet (%r)' % b)
elif in_escape: # part-way through escape sequence
in_escape = False
@ -1474,10 +1632,13 @@ def slip_reader(port):
elif b == b'\xdd':
partial_packet += b'\xdb'
else:
trace_function("Read invalid data: %r", read_bytes)
trace_function("Remaining data in serial buffer: %r", port.read(port.inWaiting()))
raise FatalError('Invalid SLIP escape (%r%r)' % (b'\xdb', b))
elif b == b'\xdb': # start of escape sequence
in_escape = True
elif b == b'\xc0': # end of packet
trace_function("Full packet: %r", partial_packet)
yield partial_packet
partial_packet = None
else: # normal byte in packet
@ -1693,14 +1854,12 @@ def write_flash(esp, args):
seq = 0
written = 0
t = time.time()
esp._port.timeout = min(DEFAULT_TIMEOUT * ratio,
CHIP_ERASE_TIMEOUT * 2)
while len(image) > 0:
print('\rWriting at 0x%08x... (%d %%)' % (address + seq * esp.FLASH_WRITE_SIZE, 100 * (seq + 1) // blocks), end='')
sys.stdout.flush()
block = image[0:esp.FLASH_WRITE_SIZE]
if args.compress:
esp.flash_defl_block(block, seq)
esp.flash_defl_block(block, seq, timeout=DEFAULT_TIMEOUT * ratio)
else:
# Pad the last block
block = block + b'\xff' * (esp.FLASH_WRITE_SIZE - len(block))
@ -1729,7 +1888,6 @@ def write_flash(esp, args):
print('Hash of data verified.')
except NotImplementedInROMError:
pass
esp._port.timeout = DEFAULT_TIMEOUT
print('\nLeaving...')
@ -1761,6 +1919,15 @@ def image_info(args):
calc_checksum = image.calculate_checksum()
print('Checksum: %02x (%s)' % (image.checksum,
'valid' if image.checksum == calc_checksum else 'invalid - calculated %02x' % calc_checksum))
try:
digest_msg = 'Not appended'
if image.append_digest:
is_valid = image.stored_digest == image.calc_digest
digest_msg = "%s (%s)" % (hexify(image.calc_digest).lower(),
"valid" if is_valid else "invalid")
print('Validation Hash: %s' % digest_msg)
except AttributeError:
pass # ESP8266 image has no append_digest field
def make_image(args):
@ -1780,7 +1947,7 @@ def elf2image(args):
e = ELFFile(args.input)
if args.chip == 'auto': # Default to ESP8266 for backwards compatibility
print("Creating image for ESP8266...")
args.chip == 'esp8266'
args.chip = 'esp8266'
if args.chip == 'esp32':
image = ESP32FirmwareImage()
@ -1952,6 +2119,11 @@ def main():
help="Disable launching the flasher stub, only talk to ROM bootloader. Some features will not be available.",
action='store_true')
parser.add_argument(
'--trace', '-t',
help="Enable trace-level output of esptool.py interactions.",
action='store_true')
subparsers = parser.add_subparsers(
dest='operation',
help='Run esptool {command} -h for additional help')
@ -2121,17 +2293,23 @@ def main():
sys.exit(1)
operation_func = globals()[args.operation]
operation_args,_,_,_ = inspect.getargspec(operation_func)
if PYTHON2:
# This function is depreciated in Python3
operation_args = inspect.getargspec(operation_func).args
else:
operation_args = inspect.getfullargspec(operation_func).args
if operation_args[0] == 'esp': # operation function takes an ESPLoader connection object
initial_baud = min(ESPLoader.ESP_ROM_BAUD, args.baud) # don't sync faster than the default baud rate
if args.chip == 'auto':
esp = ESPLoader.detect_chip(args.port, initial_baud, args.before)
esp = ESPLoader.detect_chip(args.port, initial_baud, args.before, args.trace)
else:
chip_class = {
'esp8266': ESP8266ROM,
'esp32': ESP32ROM,
}[args.chip]
esp = chip_class(args.port, initial_baud)
esp = chip_class(args.port, initial_baud, args.trace)
esp.connect(args.before)
print("Chip is %s" % (esp.get_chip_description()))
@ -2259,7 +2437,7 @@ class SpiConnectionAction(argparse.Action):
value = (hd << 24) | (cs << 18) | (d << 12) | (q << 6) | clk
else:
raise argparse.ArgumentError(self, '%s is not a valid spi-connection value. ' +
'Values are SPI, HSPI, or a sequence of 5 pin numbers CLK,Q,D,HD,CS).' % values)
'Values are SPI, HSPI, or a sequence of 5 pin numbers CLK,Q,D,HD,CS).' % value)
setattr(namespace, self.dest, value)
@ -2301,102 +2479,104 @@ class AddrFilenamePairAction(argparse.Action):
# Binary stub code (see flasher_stub dir for source & details)
ESP8266ROM.STUB_CODE = eval(zlib.decompress(base64.b64decode(b"""
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""")))
ESP32ROM.STUB_CODE = eval(zlib.decompress(base64.b64decode(b"""
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