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fixed merged firmware bootloader script

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pelgraine
2026-06-05 07:37:48 +10:00
parent 54ca0638eb
commit f372b7158a
1 changed files with 10 additions and 1 deletions
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merge_firmware.py
+10 -1
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@@ -114,11 +114,20 @@ def merge_bin(source, target, env):
return
# Read flash settings from board config
flash_mode = env.BoardConfig().get("build.flash_mode", "qio")
flash_freq = env.BoardConfig().get("build.f_flash", "80000000L").rstrip("L")
flash_size = env.BoardConfig().get("upload.flash_size", "16MB")
mcu = env.BoardConfig().get("build.mcu", "esp32s3")
# Force the bootloader inside the MERGED image to DIO. Web flashers such as
# flasher.meshcore.io do not set the SPI flash quad-enable (QE) bit, so a
# QIO bootloader cannot read flash and the device boot-loops at the ROM
# stage (mode:QIO ... TG0WDT_SYS_RST). DIO needs no QE bit, so the merged
# image boots when flashed that way. esptool merge_bin re-stamps the
# flash-mode byte of the image at 0x0 (the bootloader) only; the app image
# is already built DIO and is left untouched. The board config stays QIO,
# so VSCode / esptool / OTA flashing is unaffected and keeps using QIO.
flash_mode = "dio"
# Convert numeric frequency to esptool format
freq_map = {"80000000": "80m", "40000000": "40m", "26000000": "26m", "20000000": "20m"}
flash_freq_str = freq_map.get(flash_freq, "80m")