Mateusz Myalski e6632cda77 Added support for USARTs and clock setup ...

Tested:
- USART2 Rx/Tx with:
    - In 8N1 115200
    - With sysclk set as HSI and default setup
    - With all clk input types for USART2

2025-07-11 20:31:43 -07:00

..

libopencm3

Added support for USARTs and clock setup

2025-07-11 20:31:43 -07:00

libopencmsis

Add IRQ handlers and missing Makefile FP flags

2025-07-11 20:31:43 -07:00