def check_partition(self, hash, updatesize):
h = hashlib.sha256()
buf_sz = int(
(updatesize / self.CHUNK_SIZE - updatesize // self.CHUNK_SIZE) *
self.CHUNK_SIZE)
log.debug('First buf_sz {}'.format(buf_sz))
if buf_sz == 0:
buf = bytearray(self.CHUNK_SIZE)
else:
buf = bytearray(buf_sz)
position = self.partitions[self.next_boot_partition][2]
pieces = int(
updatesize / self.CHUNK_SIZE) + (updatesize % self.CHUNK_SIZE > 0)
for i in range(0, pieces):
# log.debug('id {}, P: {}'.format(i, position))
esp.flash_read(position, buf)
# log.debug('{}'.format(buf))
h.update(buf)
position += len(buf)
buf = bytearray(self.CHUNK_SIZE)
parthash = (ubinascii.hexlify(h.digest()).decode())
log.info('partition hash is "{}", should be "{}"'.format(
parthash, hash))
return parthash == hash
def copy_partition(self):
buf = bytearray(self.CHUNK_SIZE)
for i in range(
0,
self.partitions[self.cur_boot_partition][3] / self.CHUNK_SIZE):
esp.flash_read(
self.partitions[self.cur_boot_partition][2] +
self.CHUNK_SIZE * i, buf)
self.write_partition_chunk(buf, i)
def __init__(self, font_address=0x300000):
self.font_address = font_address
buffer = bytearray(18)
esp.flash_read(self.font_address, buffer)
self.header, \
self.height, \
self.width, \
self.baseline, \
self.x_height, \
self.Y_height, \
self.first_char,\
self.last_char = ustruct.unpack('4sHHHHHHH', buffer)
self.first_char_info_address = self.font_address + 18
def GetCharacterData(self,c):
uni=ord(c)
if uni not in range(self.first_char,self.last_char):
return None
char_info_address=self.first_char_info_address+(uni-self.first_char)*6
buffer=bytearray(6)
esp.flash_read(char_info_address,buffer)
ptr_char_data,len=ustruct.unpack('IH',buffer)
if(ptr_char_data)==0 or(len==0):
return None
buffer=bytearray(len)
esp.flash_read(ptr_char_data+self.font_address,buffer)
return buffer
def __init__(self, font_address=0x200000):
self.font_address = font_address
buffer = bytearray(18)
esp.flash_read(self.font_address, buffer)
self.header, \
self.height, \
self.width, \
self.baseline, \
self.x_height, \
self.Y_height, \
self.first_char,\
self.last_char = ustruct.unpack('4sHHHHHHH', buffer)
self.first_char_info_address = self.font_address + 18
def search(offset, text):
print('search for %r start with offset 0x%x' % (text, offset))
offset_step = CHUNK_SIZE - len(text)
if offset_step <= 0:
raise AssertionError('Search text too large: increase CHUNK_SIZE!')
def print_throughput():
duration = utime.time() - start_time
if duration == 0:
throughput = -1
else:
throughput = (offset - start_offset) / duration / 1024
print(
'(Search duration: %i sec. - %i KBytes/sec' % (duration, throughput)
)
flash_size = esp.flash_size()
start_offset = offset
end_researched = False
start_time = utime.time()
next_update = start_time + 1
while True:
if offset + CHUNK_SIZE > flash_size:
# Search to esp.flash_size(), but don't go beyond.
offset = flash_size - CHUNK_SIZE
end_researched = True
try:
esp.flash_read(offset, BUFFER)
except OSError as e:
print('Read flash error: %s at 0x%x - 0x%x' % (e, offset, offset + CHUNK_SIZE))
return -1
if text in BUFFER:
print('Found in 0x%x !' % offset, end=' ')
print_throughput()
return offset
if utime.time() >= next_update:
print('Search: 0x%x ...' % offset, end=' ')
print_throughput()
next_update = utime.time() + 1
if end_researched:
print('Memory end researched, searched up to 0x%x' % (offset + CHUNK_SIZE))
print_throughput()
return -1
offset += offset_step
def hex_dump(offset=0):
for line_num in range(LINE_COUNT):
current_offset = offset + (line_num * CHUNK_SIZE)
esp.flash_read(current_offset, BUFFER)
print('%08x - %08x' % (current_offset, current_offset + CHUNK_SIZE - 1), end=' ')
print(' '.join('%02x' % char for char in BUFFER), end=' ')
print(
''.join(
chr(char)
if 32 <= char <= 126 and char not in (60, 62) else '.'
for char in BUFFER
)
)
gc.collect()
def set_adc_vcc():
sector_size = bdev.SEC_SIZE
flash_size = esp.flash_size()
init_sector = int(flash_size / sector_size - 4)
data = bytearray(esp.flash_read(init_sector * sector_size, sector_size))
data[107] = 255
esp.flash_erase(init_sector)
esp.flash_write(init_sector * sector_size, data)
machine.reset()
def set_bl_flash_size(real_size):
if real_size == 256*1024:
code = 1
elif real_size == 512*1024:
code = 0
elif real_size == 1024*1024:
code = 2
elif real_size == 2048*1024:
code = 3
elif real_size == 4096*1024:
code = 4
else:
code = 2
buf = bytearray(4096)
esp.flash_read(0, buf)
buf[3] = (buf[3] & 0xf) | (code << 4)
esp.flash_erase(0)
esp.flash_write(0, buf)
def set_bl_flash_size(real_size):
if real_size == 256 * 1024:
code = 1
elif real_size == 512 * 1024:
code = 0
elif real_size == 1024 * 1024:
code = 2
elif real_size == 2048 * 1024:
code = 3
elif real_size == 4096 * 1024:
code = 4
else:
code = 2
buf = bytearray(4096)
esp.flash_read(0, buf)
buf[3] = (buf[3] & 0xf) | (code << 4)
esp.flash_erase(0)
esp.flash_write(0, buf)
async def hex_dump(writer, offset=0):
for line_num in range(LINE_COUNT):
current_offset = offset + (line_num * CHUNK_SIZE)
try:
esp.flash_read(current_offset, BUFFER)
except OSError as e:
await writer.awrite(b'Error: %s' % e)
break
await writer.awrite(TABLE_LINE.format(
address='%08x - %08x' % (current_offset, current_offset + CHUNK_SIZE - 1),
hex=' '.join('%02x' % char for char in BUFFER),
chars=''.join(
chr(char)
if 32 <= char <= 126 and char not in (60, 62) else '.'
for char in BUFFER
),
))
gc.collect()
async def search(writer, offset, text):
print('search for', repr(text))
next_update = utime.time() + 1
while True:
try:
esp.flash_read(offset, BUFFER)
except OSError as e:
await writer.awrite(b'Error: %s' % e)
break
if text in BUFFER:
print('Found in block:', offset)
await writer.awrite(b'Found in block: %i\n' % offset)
return offset
offset += CHUNK_SIZE
if utime.time() >= next_update:
print('Search:', offset)
await writer.awrite(b'Search %i\n' % offset)
next_update = utime.time() + 1
def set_adc_mode(mode):
sector_size = bdev.SEC_SIZE
flash_size = esp.flash_size() # device dependent
init_sector = int(flash_size / sector_size - 4)
data = bytearray(esp.flash_read(init_sector * sector_size, sector_size))
if data[107] == mode:
return # flash is already correct; nothing to do
else:
data[107] = mode # re-write flash
esp.flash_erase(init_sector)
esp.flash_write(init_sector * sector_size, data)
print("ADC mode changed in flash; restart to use it!")
return
def set_adc_mode(mode):
sector_size = bdev.SEC_SIZE
flash_size = esp.flash_size() # device dependent
init_sector = int(flash_size / sector_size - 4)
data = bytearray(esp.flash_read(init_sector * sector_size, sector_size))
if data[107] == mode:
return # flash is already correct; nothing to do
else:
print( "*** Going to adjust the ADC type in the flashed memory" );
print( "*** You will need to hit the 'RST' button, near the USB port" );
print( "*** when it's done" );
data[107] = mode # re-write flash
esp.flash_erase(init_sector)
esp.flash_write(init_sector * sector_size, data)
print("*** ADC mode changed in flash; restart to use it!")
return
def set_adc_mode(adc=0):
ADC_MODE_ADC = 0
ADC_MODE_VCC = 255
mode = {0: ADC_MODE_ADC, 1: ADC_MODE_VCC}
sector_size = bdev.SEC_SIZE
flash_size = esp.flash_size() # device dependent
init_sector = int(flash_size / sector_size - 4)
data = bytearray(esp.flash_read(init_sector * sector_size, sector_size))
if data[107] == mode[adc]:
print("ADC mode is already set in flash!")
return
else:
data[107] = mode[adc] # re-write flash
esp.flash_erase(init_sector)
esp.flash_write(init_sector * sector_size, data)
print("ADC mode has been changed in flash; restart to use it!")
return
def adc_mode(mode=None):
import flashbdev
sector_size = flashbdev.bdev.SEC_SIZE
flash_size = esp.flash_size() # device dependent
init_sector = int(flash_size / sector_size - 4)
data = bytearray(esp.flash_read(init_sector * sector_size, sector_size))
current_mode = data[107]
if mode is None: # Read adc mode
return current_mode
if current_mode == mode:
print("ADC mode already {}.".format(mode))
else:
data[107] = mode # re-write flash
esp.flash_erase(init_sector)
esp.flash_write(init_sector * sector_size, data)
print("ADC mode is now {}. Reset to apply.".format(mode))
return mode
def set_adc_mode(mode):
sector_size = bdev.SEC_SIZE
flash_size = esp.flash_size() # device dependent
init_sector = int(flash_size / sector_size - 4)
try:
data = bytearray(
esp.flash_read(init_sector * sector_size, sector_size))
if data[107] == mode:
return True # flash is already correct; nothing to do
else:
data[107] = mode # re-write flash
esp.flash_erase(init_sector)
esp.flash_write(init_sector * sector_size, data)
return False
except MemoryError:
log = logger.get_logger()
log.log_msg(
logger.ERROR,
"Could not allocate memory for setting adc mode, assuming it's {}"
.format(_num_to_mode[mode]))
return True
import esp esp.osdebug(None) # turn off vendor O/S debugging messages esp.osdebug(0) # redirect vendor O/S debugging messages to UART(0) sector_no = 1 # Placeholders byte_offset = 0 buffer = [0] # low level methods to interact with flash storage esp.flash_size() esp.flash_user_start() esp.flash_erase(sector_no) esp.flash_write(byte_offset, buffer) esp.flash_read(byte_offset, buffer) # The esp32 module: import esp32 esp32.hall_sensor() # read the internal hall sensor esp32.raw_temperature( ) # read the internal temperature of the MCU, in Fahrenheit esp32.ULP() # access to the Ultra-Low-Power Co-processor # RMT import esp32 from machine import Pin r = esp32.RMT(0, pin=Pin(18), clock_div=8)
def readblocks(self, n, buf):
#print("readblocks(%s, %x(%d))" % (n, id(buf), len(buf)))
esp.flash_read((n + self.START_SEC) * self.SEC_SIZE, buf)
def readblocks(self, n, buf):
#print("readblocks(%s, %x(%d))" % (n, id(buf), len(buf)))
esp.flash_read((n + self.START_SEC) * self.SEC_SIZE, buf)
return self.blocks
if op == 5: # BP_IOCTL_SEC_SIZE
return SEC_SIZE
# Set up UART
uos.dupterm(machine.UART(0, 115200), 1)
# Disable OS debug messages
# esp.osdebug(None)
# Read FS metadata
meta_off = META_SECTOR * SEC_SIZE
while True:
# Read FS params
buf = bytearray(28) # name / start sector / lenght / flags
esp.flash_read(meta_off, buf)
meta_off += 28
if buf[0] == 0xff:
# no more entries
break
mpoint = bytes(buf[:16]).decode().rstrip()
fs_start = int.from_bytes(buf[16:20], 'big')
fs_len = int.from_bytes(buf[20:24], 'big')
readonly = bool(buf[25])
# Mount filesystem
flash = FlashBlockDev(fs_start, fs_len)
uos.mount(flash, mpoint, readonly=readonly)
# Set up garbage collector
gc.threshold((gc.mem_free() + gc.mem_alloc()) // 4)
def load(self):
"""Load config (all sections) from file"""
offset = CONFIG_BLOCK * BLOCK_SIZE
# metadata, bytes:
# 0: name len
# 1: type
# 2: chksum (sum of name + type)
meta = bytearray(3)
while True:
esp.flash_read(offset, meta)
offset += 3
# All 0xff indicates end of list
if meta == b'\xff\xff\xff':
break
if sum(meta[:2]) != meta[2]:
raise ConfigError('Malformed config')
# read param name
buf = bytearray(meta[0])
esp.flash_read(offset, buf)
offset += meta[0]
name = bytes(buf).decode()
# read value
if meta[1] == 1:
# type int
buf = bytearray(4)
esp.flash_read(offset, buf)
offset += 4
value = int.from_bytes(buf, 'big')
# Respect sign
if value > 0x7FFFFFFF:
value -= 0x100000000
elif meta[1] == 2:
# type string
# read len
buf = bytearray(1)
esp.flash_read(offset, buf)
offset += 1
# read value
if buf[0] > 0:
val = bytearray(buf[0])
esp.flash_read(offset, val)
value = bytes(val).decode()
else:
value = ''
offset += buf[0]
elif meta[1] == 3:
# type bool
buf = bytearray(1)
esp.flash_read(offset, buf)
value = bool(buf[0])
offset += 1
elif meta[1] == 4:
# None
value = None
else:
raise ConfigError('Unknown {} value type'.format(meta[2]))
validate_name(name)
validate_value_type(value)
self.validate_value(name, value)
setattr(self, name, value)
gc.collect()
# Run callbacks
self.run_callbacks(
[x for x in self.__dict__.keys() if not x.startswith('_')])
gc.collect()
def readblocks(self, n, buf):
esp.flash_read((n + self.start) * SEC_SIZE, buf)
import esp import machine from flashbdev import bdev sector_size = bdev.SEC_SIZE flash_size = esp.flash_size() # device dependent init_sector = int(flash_size / sector_size - 4) data = bytearray(esp.flash_read(init_sector * sector_size, sector_size)) data[107] = 255 esp.flash_erase(init_sector) esp.flash_write(init_sector * sector_size, data) machine.reset() # from machine import ADC # ADC(1).read()
def readblocks(self, n, buf, off=0):
#print("readblocks(%s, %x(%d), %d)" % (n, id(buf), len(buf), off))
esp.flash_read((n + self.START_SEC) * self.SEC_SIZE + off, buf)
