Julian Appel d325297063 Add end-to-end USB flashing for the app firmware via UF2 ... Adds uf2conv.py (minimal, dependency-free .bin -> .uf2 converter matching bootloader/inc/uf2format.h's block layout) and upload_uf2.py, a PlatformIO upload hook for env:versapad_usb that finds the mounted VERSABOOT volume and copies the converted firmware onto it. env:versapad_usb previously used upload_protocol=sam-ba, the classic Arduino/Atmel protocol -- the actual bootloader speaks UF2/mass storage, not SAM-BA, so that upload path never worked. Switched to upload_protocol=custom with the new hook, and cleaned the now-unused SAM-BA-specific fields out of boards/versapad.json. Verified end to end on real hardware: pio run -e versapad_usb --target upload builds, converts, copies to the VERSABOOT drive, and the bootloader jumps into the freshly written app on its own. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>		2026-08-05 21:35:19 +02:00
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00_architecture.md	Harden firmware state and transfer handling	2026-07-24 09:49:21 +02:00
01_matrix.md	Harden firmware state and transfer handling	2026-07-24 09:49:21 +02:00
02_encoder.md	Harden firmware state and transfer handling	2026-07-24 09:49:21 +02:00
03_action_engine.md	Harden firmware state and transfer handling	2026-07-24 09:49:21 +02:00
04_macro_system.md	Harden firmware state and transfer handling	2026-07-24 09:49:21 +02:00
05_led_system.md	Harden firmware state and transfer handling	2026-07-24 09:49:21 +02:00
06_nvm_config.md	Harden firmware state and transfer handling	2026-07-24 09:49:21 +02:00
07_serial_protocol.md	Harden firmware state and transfer handling	2026-07-24 09:49:21 +02:00
08_development.md	Harden firmware state and transfer handling	2026-07-24 09:49:21 +02:00
09_known_limitations.md	Add end-to-end USB flashing for the app firmware via UF2	2026-08-05 21:35:19 +02:00
INDEX.md	Update firmware documentation and agent guidance	2026-07-24 09:27:07 +02:00