Minimalist Interrupt-based UART driver with ring buffers for STM32F746-Disco UART1 ST-Link COM Port
Clock: default, no changes (16MHz HSI).
USART1 is the USART connected to ST-Link that makes virtual COM port on PC.
This project is a proof of concept (that I can).
Might be useful for someone who wants to figure out how the stuff works.
I commented almost every line to make it simple to understand.
Hardware:
STM32F746 Disco board, Windows PC
Software:
STM32CubeIDE, Putty for UART communication;
No libraries used except for CMSIS register definitions.