Arduino for STM32

Very complicated. But indeed it works this way! Thank you fpiSTM and ag123.

Setting `USB support (if available)` was set to HID

Setting `USB support (if available)` to CDC (with or without serial) makes board ACM device (ttyACM0) after `Upload`

I set `STM32CubeProgrammer (Serial)` and uploaded compiled binary with stm32flash: it blinks now, great!

The next step is HID:

1. I got pre-compiled binaries from https://github.com/Serasidis/STM32_HID_Bootloader and flashed it:
% stm32flash -g 0x8000000 -b 115200 -w stm32_binaries/F103/low_and ...

Can I start without bootloader at all? Just compile from Arduino IDE and flash with stm32flash.

I have no ST-LINK device and not going to use Cube.

I bought looks like the same board from Ali. This is my first stm32 and I have a lot of questions.

stm32flash says:

stm32flash 0.5

http://stm32flash.sourceforge.net/

Interface serial_posix: 57600 8E1
Version : 0x22
Option 1 : 0x00
Option 2 : 0x00
Device ID : 0x0410 (STM32F10xxx Medium-density ...