I have been experimenting with adding the USB DFU to firmware using the Stm32CubeMX. On both a "black pill" STM32F411 and a home made STM32F405 board, pulling boot0 high during reset, the device will show up as DFU and I can flash new firmware using something like:
dfu-util -a 0 -s 0x8000000 -D c13blink.bin
(from Linux. IF I include the DFU in the firmware, the USB device enumerate correctly and show up as:
Bus 001 Device 106: ID 0483:df11 STMicroelectronics STM Device in DFU Mode
dfu-util -l reports:
Found DFU: [0483:df11] ver=0200, devnum=106, cfg=1, intf=0, path="1-14.5.3", alt
=0, name="@Internal Flash /0x08000000/03*016Ka,01*016Kg,01*064Kg,07*128Kg,04*0
16Kg,01*064Kg,07*128Kg", serial="387D326E3439"
But if I try to flash - the same which worked with the internal bootloader - the result is:
Opening DFU capable USB device...
ID 0483:df11
Run-time device DFU version 011a
Claiming USB DFU Interface...
Setting Alternate Setting #0 ...
Determining device status: state = dfuIDLE, status = 0
dfuIDLE, continuing
DFU mode device DFU version 011a
Device returned transfer size 1024
DfuSe interface name: "Internal Flash "
Downloading to address = 0x08000000, size = 29432
dfu-util: Last page at 0x080072f7 is not writeable
What am I missing?
