Add SocInterface for Silicon Labs EFM32GG11 (dual-bank OTA UF2)#93
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Registers the silabs-efm32gg11 family (id 0xEF326611) in SocInterface.get() and get_family_names(), backed by a minimal EFM32GG11Main reporting OTAType.DUAL. This lets 'ltchiptool uf2 write' pack a dual-bank OTA image (DEVICE_DUAL_1 -> ota1 @ 0x008000, DEVICE_DUAL_2 -> ota2 @ 0x100000, with a diff32 binpatch for bank B) for the LibreTiny EFM32GG11 chip family. uf2tool's writer only needs ota_type from the SoC; the partition table is built from the board JSON flash regions and binpatch is computed by the writer, so flash/elf2bin methods are inherited (unused for 'uf2 write').
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Adds a
SocInterfacefor the Silicon Labs EFM32GG11 family soltchiptool uf2 writecan pack a dual-bank OTA UF2 for LibreTiny'ssilabs-efm32gg11chip family (WGM160P / EFM32GG11B820).What
ltchiptool/soc/efm32gg11/(EFM32GG11Main), mirroring the existing SoC plugins; reportsOTAType.DUAL.SocInterface.get()andget_family_names()for familysilabs-efm32gg11(id0xEF326611).Why minimal
uf2tool'sUF2Writer.write()only needssoc.ota_type— the partition table is built from the board JSON flash regions and the diff32 binpatch is computed by the writer. Flashing on this family is done over SWD / Simplicity Commander rather than ltchiptool, so theflash_*/elf2binmethods are intentionally left at the baseNotImplementedError(none are exercised byuf2 write).OTA scheme
Jump-based A/B dual-bank:
DEVICE_DUAL_1 → ota1(bank A @0x008000),DEVICE_DUAL_2 → ota2(bank B @0x100000, carried as a diff32 binpatch over bank A).Validation
uf2 writefrom two real bank images, thenuf2 dump -s device1/device2, reconstructs both banks byte-exact..uf2via LibreTiny's ArduinoUpdateAPI; the first-stage bootloader switched banks and the new image booted and confirmed.🤖 Generated with Claude Code