Loading Firmware via USB DFU - Githubissues

rrivirr / rriv-rust

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Loading Firmware via USB DFU #22

Open misterinterrupt opened 1 year ago

misterinterrupt commented 1 year ago

modify memory addressing to include space for what the bootloader needs
turning on usb for dfu
magic bits for recognizing that we are in dfu mode
minimal fw to decide whether to load dfu fw or main fw
block debugger access to avoid memory getting erased
minimal fw integrity checks (i.e. start looks like a stack pointer)

reference implementations: Rust: https://github.com/vitalyvb/usbd-dfu-example/tree/main/dfu-bootloader C: https://github.com/Serasidis/STM32_HID_Bootloader/tree/master/bootloader/F1

same issue in C firmware repo: https://github.com/rrivirr/rriv/issues/103