I’ve been trying to flash these Black Pills I have (STM32F401), the official STM32 flasher worked great, STM32CubeProgrammer.
./STM32_Programmer.sh -c port=USB1 -d firmware.bin 0x08000000
dfu-util also worked, eventually, after an unspecified amount of messing around with udev rules (if it doesn’t work for you out of the box, try the rs-probe udev rules).
Clone the repo: https://github.com/stm32-rs/stm32f4xx-hal/ and
cargo objcopy --release --example delay-timer-blinky --features="stm32f401,rt" -- -O binary out.bin
dfu-util -a 0 --dfuse-address 0x08000000 -D out.bin
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