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>
17 lines
817 B
CSV
17 lines
817 B
CSV
# ESP-IDF partition table: A/B OTA app slots + LittleFS storage.
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#
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# Sized for the real 8MB flash module -- confirmed against actual
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# hardware via `esptool flash_id` (2026-07-12), not assumed from docs;
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# the previous 4MB layout left half the chip's flash unallocated. Extra
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# space went mostly to the OTA slots (headroom for future sensor
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# drivers and Blockly-generated Lua growing the app image), with
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# `storage` absorbing the remainder rather than leaving flash unused.
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#
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# Name, Type, SubType, Offset, Size, Flags
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nvs, data, nvs, 0x9000, 0x6000,
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otadata, data, ota, 0xf000, 0x2000,
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phy_init, data, phy, 0x11000, 0x1000,
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ota_0, app, ota_0, 0x20000, 0x300000,
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ota_1, app, ota_1, 0x320000, 0x300000,
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storage, data, littlefs, 0x620000, 0x1E0000,
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