WeAct HID bootloader on Black Pill
How to upload the WeAct HID bootloader on Black Pill
Uploading sketches from Arduino IDE using DFU, Serial , ST-link methods, the WeAct HID Bootloader will be deleted It's possible to upload it again
Download the the HID bootloader WeAct_HID_Bootloader_F4x1.hex
The HID bootloader file must be converted from hex format to bin:
objcopy -Iihex -j .sec1 -Obinary WeAct_HID_Bootloader_F4x1.hex WeAct_HID_Bootloader_F4x1.bin
dfu-suffix -a WeAct_HID_Bootloader_F4x1.bin
Upload WeAct_HID_Bootloader_F4x1.bin on the Black Pill using dfu-util:
dfu-util -a 0 -s 0x08000000 -D WeAct_HID_Bootloader_F4x1.bin
To use the Black Pill under linux, it is required to install the STM32 HID rules 96-stm32f4_hid.rules
Upload Arduino Sketch on the Black Pill
To upload the Sketch file bin, generated from Arduino IDE, to the Black Pill is required the WeAct uploader sofware called WeAct_HID_Flash-CLI
./WeAct_HID_Flash-CLI Blink.bin
Please note that to enter in the HID Bootloader mode is required to push the stand-alone button near the 4 pins for ST-Link