1 Mitch's guide to STM32
Mitch Davis's series is regularly suggested as a compact way into STM32 programming, valued for covering bare-metal fundamentals alongside the vendor's hardware abstraction layer.
Topic
hal
3 videos. Ranked by independent recommendations, not by views.
2 MOOC - STM32CubeMX and STM32Cube HAL basics
ST's own long course, repeatedly suggested as a reasonable starting point for understanding CubeMX and the HAL libraries, with basics that carry across chip families.
3 STM32 Guide #2: Registers + HAL (Blink example)
Well regarded as an STM32 starting point from Mitch Davis, explaining registers and the HAL through a blink example, and especially useful for those coming from Arduino.
