d83759899f
The XMC embedded flash on ESP32-S3 (QFN56) has JEDEC ID 164020 which esptool.js
does not recognise — it returns flash size -1 causing 'File doesn't fit in
available flash' before any bytes are written.
firmware/sdkconfig.defaults:
CONFIG_ESPTOOLPY_FLASHSIZE 16MB → 4MB
4MB is the minimum supported flash. The spi_flash check only panics when
physical < header, so 4MB header is safe on 16MB boards as well.
firmware/partitions.csv:
Redesigned to fit within 4MB flash:
factory 0x010000–0x200000 (~1.9MB, fits current 1.7MB binary + 330KB headroom)
ota_0 0x200000–0x3F0000 (~1.9MB, A/B OTA + rollback preserved)
otadata 0x3F0000–0x3F2000 (8KB)
Total flash used: 0x3F2000 (98.6% of 4MB). Drops ota_1 (was at 8MB, unusable
on 4MB devices anyway); rollback still works factory↔ota_0.
dashboard/js/onboard.js:
flashSize: 'detect' → '4MB' (detect returned -1 for this chip's JEDEC ID;
hardcoding '4MB' correctly sets the binary header for all supported boards)
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
554 B
554 B
| 1 | # Name, Type, SubType, Offset, Size, Flags |
|---|---|
| 2 | # NVS, PHY init, and OTA data in standard low-flash locations |
| 3 | nvs, data, nvs, 0x9000, 0x6000, |
| 4 | phy_init, data, phy, 0xF000, 0x1000, |
| 5 | # Factory app at standard 0x10000 offset (~1.9MB — fits current ~1.7MB binary) |
| 6 | factory, app, factory, 0x10000, 0x1F0000, |
| 7 | # Single OTA partition for A/B updates with rollback (fits in 4MB flash) |
| 8 | ota_0, app, ota_0, 0x200000,0x1F0000, |
| 9 | # OTA data partition — bootloader uses this to track which OTA slot to boot |
| 10 | otadata, data, ota, 0x3F0000,0x2000, |