I mistakenly checked comment instead of request changes on my review...this tags as such

and your board id has already been taken....I suggest a separate PR to reserve (they geet merged quickly) and you will need to redo the bootloader file (you will anyway iff you follow my suggestion re SD card flashing_

sure, this PR for reserving the borad ID, I'll correct the rest docs, thanks.

you should add the SD card support in the bootloader so flashing from SD is possible...also you would need to add this in the bootloader hwdeef: define AP_BOOTLOADER_FLASH_FROM_SD_ENABLED 1 and this in the hwdef: env BUILD_ABIN True

Hello, I have added define AP_BOOTLOADER_FLASH_FROM_SD_ENABLED 1 into hwdef-bl, but have problem while building the new bootloader.

Build failed
-> task in 'bootloader/AP_Bootloader' failed (exit status 1):
{task 4452046816: cxx flash_from_sd.cpp -> flash_from_sd.cpp.7.o}

dont know if you added the SD interface, but I discovered that some other defines in the bootloader hwdef are required...I need to add them to the wiki...here is what is needed your file:
define AP_BOOTLOADER_FLASH_FROM_SD_ENABLED 1
define FATFS_HAL_DEVICE SDCD1
define FATFS_HAL_DEVICE SDCD1

microSD support

PC12 SDMMC1_CK SDMMC1
PD2 SDMMC1_CMD SDMMC1
PC8 SDMMC1_D0 SDMMC1
PC9 SDMMC1_D1 SDMMC1
PC10 SDMMC1_D2 SDMMC1
PC11 SDMMC1_D3 SDMMC1

FATFS support:

define CH_CFG_USE_MEMCORE 1
define CH_CFG_USE_HEAP 1
define CH_CFG_USE_SEMAPHORES 0
define CH_CFG_USE_MUTEXES 1
define CH_CFG_USE_DYNAMIC 1
define CH_CFG_USE_WAITEXIT 1
define CH_CFG_USE_REGISTRY 1

it build for me now

dont know if you added the SD interface, but I discovered that some other defines in the bootloader hwdef are required...I need to add them to the wiki...here is what is needed your file: define AP_BOOTLOADER_FLASH_FROM_SD_ENABLED 1 define FATFS_HAL_DEVICE SDCD1 define FATFS_HAL_DEVICE SDCD1

microSD support

PC12 SDMMC1_CK SDMMC1 PD2 SDMMC1_CMD SDMMC1 PC8 SDMMC1_D0 SDMMC1 PC9 SDMMC1_D1 SDMMC1 PC10 SDMMC1_D2 SDMMC1 PC11 SDMMC1_D3 SDMMC1

FATFS support:

define CH_CFG_USE_MEMCORE 1 define CH_CFG_USE_HEAP 1 define CH_CFG_USE_SEMAPHORES 0 define CH_CFG_USE_MUTEXES 1 define CH_CFG_USE_DYNAMIC 1 define CH_CFG_USE_WAITEXIT 1 define CH_CFG_USE_REGISTRY 1

it build for me now

thanks, I'll try it out.

@Hwurzburg Hello, I have updated the files, please review them when you get a chance, thanks.

@Hwurzburg thanks for your patience, hope it could work out.

close,but not quite I fixed everything, squashed, split and rebased....added devcall tag

thank you.