VersaMCU/boards/versapad.json
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

30 lines
702 B
JSON

{
"build": {
"arduino": {
"ldscript": "flash_with_bootloader.ld",
"variant": "versapad"
},
"core": "arduino",
"variant": "versapad",
"cpu": "cortex-m0plus",
"extra_flags": "-DARDUINO_SAMD_ZERO -DARM_MATH_CM0PLUS -D__SAMD21G18A__",
"f_cpu": "48000000L",
"hwids": [
["0x239A", "0x0042"]
],
"mcu": "samd21g17d",
"usb_product": "VersaPad v2",
"usb_manufacturer": "Custom"
},
"connectivity": ["usb"],
"frameworks": ["arduino"],
"name": "VersaPad v2 (USB bootloader)",
"upload": {
"maximum_ram_size": 16384,
"maximum_size": 120832,
"offset": "0x2000",
"protocol": "custom"
},
"url": "",
"vendor": "Custom"
}