USB HID device programming on the F042

[Andy Brown]

I've recently been engaged in writing the firmware for a USB HID device on the F042 and naturally I didn't want to use the bloated HAL/Cube libraries so I implemented an efficient stm32plus driver for custom HID devices and included a new stm32plus example to support it.

I wrote a blog post to support the driver and the example and padded it out with, hopefully, all the information that you need to write and debug STM32 F042 USB devices connected to a PC.