Tasmota/pio-tools/post_esp32.py

66 lines
2.1 KiB
Python

# From: https://github.com/letscontrolit/ESPEasy/blob/mega/tools/pio/post_esp32.py
# Thanks TD-er :)
# Combines separate bin files with their respective offsets into a single file
# This single file must then be flashed to an ESP32 node with 0 offset.
#
# Original implementation: Bartłomiej Zimoń (@uzi18)
#
# Special thanks to @Jason2866 for helping debug flashing to >4MB flash
# Thanks @jesserockz (esphome) for adapting to use esptool.py with merge_bin
#
# Typical layout of the generated file:
# Offset | File
# - 0x1000 | ~\.platformio\packages\framework-arduinoespressif32\tools\sdk\esp32\bin\bootloader_dout_40m.bin
# - 0x8000 | ~\Tasmota\.pio\build\<env name>\partitions.bin
# - 0xe000 | ~\.platformio\packages\framework-arduinoespressif32\tools\partitions\boot_app0.bin
# - 0x10000 | ~\Tasmota\.pio\build\<env name>/firmware.bin
Import("env")
platform = env.PioPlatform()
import sys
from os.path import join
sys.path.append(join(platform.get_package_dir("tool-esptoolpy")))
import esptool
def esp32_create_combined_bin(source, target, env):
#print("Generating combined binary for serial flashing")
# The offset from begin of the file where the app0 partition starts
# This is defined in the partition .csv file
app_offset = 0x10000
new_file_name = env.subst("$BUILD_DIR/${PROGNAME}.factory.bin")
sections = env.subst(env.get("FLASH_EXTRA_IMAGES"))
firmware_name = env.subst("$BUILD_DIR/${PROGNAME}.bin")
chip = env.get("BOARD_MCU")
flash_size = env.BoardConfig().get("upload.flash_size")
cmd = [
"--chip",
chip,
"merge_bin",
"-o",
new_file_name,
"--flash_size",
flash_size,
]
print(" Offset | File")
for section in sections:
sect_adr, sect_file = section.split(" ", 1)
print(f" - {sect_adr} | {sect_file}")
cmd += [sect_adr, sect_file]
print(f" - {hex(app_offset)} | {firmware_name}")
cmd += [hex(app_offset), firmware_name]
#print('Using esptool.py arguments: %s' % ' '.join(cmd))
esptool.main(cmd)
env.AddPostAction("$BUILD_DIR/${PROGNAME}.bin", esp32_create_combined_bin)