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Fix partition table for the real 8MB flash, not assumed 4MB

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esptool flash_id against the actual DevKitC-1 reports 8MB, not the
4MB partitions.csv/sdkconfig.defaults assumed (never verified against
real hardware, just a leftover placeholder from the ESP-IDF scaffold).
Half the flash was unallocated. Doubled the OTA slots to 3MB each
(headroom for future sensor drivers and Blockly-generated Lua growing
the app image) and let the storage partition absorb the remainder
rather than leave flash unused.

Verified on real hardware: builds, flashes, and boots cleanly with no
errors; the app partition now reports 57% free instead of 14%.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
This commit is contained in:
Ronny Eia
2026-07-12 15:34:49 +02:00
parent 967fecbf69
commit b5dbc0bcef
2 changed files with 13 additions and 8 deletions
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7
sdkconfig.defaults
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@@ -5,9 +5,10 @@
CONFIG_PARTITION_TABLE_CUSTOM=y
CONFIG_PARTITION_TABLE_CUSTOM_FILENAME="partitions.csv"
# Matches the 4MB layout assumed in partitions.csv (TODO: adjust both
# together once real hardware's actual flash size is confirmed).
CONFIG_ESPTOOLPY_FLASHSIZE_4MB=y
# Matches the real 8MB flash (confirmed via `esptool flash_id` against
# actual hardware, 2026-07-12) and partitions.csv's layout -- keep both
# in sync if either changes.
CONFIG_ESPTOOLPY_FLASHSIZE_8MB=y
# IPv6 is required (not just the ESP-IDF default) -- transport/commissioning
# requests a link-local IPv6 address once Wi-Fi STA connects. Explicit here