Stm32 dfu driver windows 101/30/2024 Writing the magic value and then resetting will run the bootloader instead of the main application. The bootloader can be built to look for arbitrary patterns, but the default looks for a magic value stored in the RTC backup registers. The high memory bootloaders do not use the lower part of the flash, so you only need to make sure your application leaves 7 KiB of flash free. This can be done by modifying your linker script or flags as appropriate. The standard bootloader occupies the lower 8KiB of flash, so your application must offset its flash contents by 8KiB. Using the bootloader Building for the bootloader # Allow access to all Flash on MapleMini and change the app base addressĭEFS="-DFLASH_SIZE_OVERRIDE=0x20000 -DAPP_BASE_ADDRESS=0x08004000" make TARGET=MAPLEMINI LDSCRIPT="/some/folder/stm32f103x8-16kb-boot.ld" As an example, to compile for a Bluepill board with 128 KiB flash, use: The high memory bootloader is a variation that doesn't require the application to be at an offset, the bootloader resides in the top 7 KiB of ROM and hides its reset and stack vectors inside unused entries of the application vector table. High memory bootloader for 256 KiB chips (experimental) High memory bootloader for 128 KiB chips (experimental) High memory bootloader for 64 KiB chips (experimental) Standard bootloader, using first 8 KiB of flash LeafLabs Maple Mini board and clone derivativesīigTreeTech SKR MINI E3 V2.0 (3D printer motherboard)įor the above targets there are some potential variants that can be added to the target name based on what the target supports: Target Variant
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