def __init__(self, _debug=True):
self.debug = _debug
self.update_file_pages_counter = 0
self.update_file_page_data = bytearray()
current_partition = Partition(Partition.RUNNING)
current_partition_name = current_partition.info()[4]
self.plot_debug("current partition:" + str(current_partition.info()))
if not current_partition_name.startswith(
"ota_"): # firmware is adapted to OTA ?
print(
"memory_esp32: skipping... Partition table not adapted to OTA")
raise SystemExit
self.partition = current_partition.get_next_update()
self.plot_debug("next partition:" + str(self.partition.info()))
def get_current_partition_name(self):
"""
returns current partition name.
Args:
void.
Returns:
string with current partition name (ota_0 or ota_1).
"""
cur = Partition(Partition.RUNNING)
return cur.info()[4]
import random
from esp32 import Partition
import esp
import uos
filename = "csv_data_file.txt"
# Get some statistics:
print(
"Available flash space: ",
esp.flash_size()) # This will give you the total amount of Flash available
partition = Partition(Partition.RUNNING)
print(
partition.info()
) # Print out information about the running flash partition on which you can store your files.
file_stats = uos.stat(filename)
print(
"File size before write: ", file_stats[6]
) # the item at index 6 of the tupple contains the total bytes in the file.
# This loop will add 10 lines that contain dummy comma-delimited data.
for x in range(10):
random_temp = random.randint(0, 50)
random_humi = random.randint(20, 90)
random_pres = random.randint(900, 1100) # in hPa
file = open(filename, "a") # Append to the end of an existing file
#new_entry = str(random_temp) + "," + str(random_humi) + "," + str(random_pres) + "\n" # Create the string that contains the dummy CSV data
pass
# PARTITIONS // Path
import sys
import uos
import gc
bootpart = Partition(Partition.BOOT)
runningpart = Partition(Partition.RUNNING)
print("INFO - Partitions")
print("Boot: {}".format(bootpart))
print("Run: {}".format(runningpart))
part_info = runningpart.info()
part_name = part_info[4]
try:
uos.mkdir(part_name)
except OSError as e:
print("Path already exist")
pass
pyversion = 'None'
try:
with open("/{}/VERSION".format(part_name), "r") as f:
pyversion = f.read()
except:
pass
print("Version hash: {}".format(pyversion.strip()))
# Test ESP32 OTA updates, including automatic roll-back.
# Running this test requires firmware with an OTA Partition, such as the GENERIC_OTA "board".
# This test also requires patience as it copies the boot partition into the other OTA slot.
import machine
from esp32 import Partition
# start by checking that the running partition table has OTA partitions, 'cause if
# it doesn't there's nothing we can test
cur = Partition(Partition.RUNNING)
cur_name = cur.info()[4]
if not cur_name.startswith("ota_"):
print("SKIP")
raise SystemExit
DEBUG = True
def log(*args):
if DEBUG:
print(*args)
# replace boot.py with the test code that will run on each reboot
import uos
try:
uos.rename("boot.py", "boot-orig.py")
except:
pass
with open("boot.py", "w") as f:
def part(self):
runningpart = Partition(Partition.RUNNING)
part_info = runningpart.info()
part_name = part_info[4]
return part_name
if '_manifest.json' in files: # have an new manifest ? make upgrade
_manifest_file = open('_manifest.json', 'r')
_manifest_str = _manifest_file.read()
_manifest_file.close()
try:
_manifest_object = json.loads(_manifest_str)
if _manifest_object['type'] == 'bin':
print('monolithic upgrade identified.')
_current_partition = Partition(Partition.RUNNING)
if _manifest_object['ota'] == _current_partition.info(
)[4]: # changed ota partition ?
os.rename("_manifest.json", "manifest.json")
print('update with success.')
_updated = True
else:
print('failed to update.')
os.remove('_manifest.json')
else:
print('diferential upgrade identified.')
for file in files:
if file[0] == '_': # is an update file (_xxx)
os.rename(file, file[1:]) # rename: _xxx -> xxx
