STM32F1 USART - JohnHau/mis GitHub Wiki
https://wiki.st.com/stm32mcu/wiki/Getting_started_with_UART
https://wiki.st.com/stm32mcu/wiki/STM32StepByStep:Step3_Introduction_to_the_UART
https://deepbluembedded.com/stm32-usart-uart-tutorial/
https://controllerstech.com/uart-transmit-in-stm32/
https://www.keil.com/download/docs/359.asp
https://controllerstech.com/uart-receive-in-stm32/
https://www.keil.com/download/docs/360.asp
https://visualgdb.com/tutorials/arm/stm32/uart/hal/
https://stackoverflow.com/questions/51425100/stm32-stdperiph-library-usart-example
https://libstock.mikroe.com/projects/view/1317/stm32-usart-example
https://mevihub.com/how-to-receive-uart-serial-data-with-stm32-interrupt-polling/
https://www.waveshare.com/wiki/STM32CubeMX_Tutorial_Series:_USART
https://www.theengineeringprojects.com/2021/11/stm32-serial-communication-in-polling-mode.html https://moons.link/en/post-390/
https://embeddedexplorer.com/stm32-serial-communication-with-uart/
https://www.hackster.io/theembeddedthings/exploring-usart-communication-modes-in-stm32-54dd83
https://fastbitlab.com/exercise-usart-send-data-to-arduino/
https://embedds.com/programming-stm32-usart-using-gcc-tools-part-1/
https://hackaday.com/2021/01/08/bare-metal-stm32-universal-asynchronous-communication-with-uarts/
https://www.pinterest.com/pin/374291419035496102/
https://microcontrollerslab.com/stm32-blue-pill-uart-tutorial-polling-method/
https://cw.fel.cvut.cz/b211/_media/courses/be2m37mam/tasks/stm32-uart.pdf
https://microtechnics.ru/en/stm32cube-using-the-stm32-usart-interface/
https://docs.zephyrproject.org/latest/build/dts/api/bindings/serial/st,stm32-usart.html
https://micromouseonline.com/2009/12/31/stm32-usart-basics/
https://embedded-lab.com/blog/stm32-serial-communication/
https://www.stm32duino.com/viewtopic.php?t=1303
https://electronics.stackexchange.com/questions/232857/stm32l4-usart-problem
https://electronics.stackexchange.com/questions/541371/stm32-uart-send-broken-frames
https://www.edaboard.com/threads/usart-tx-interrupt-stm32.300470/
https://www.dmi.unict.it/santoro/teaching/lsm/slides/UART.pdf
https://forbot.pl/blog/kurs-stm32-f4-7-komunikacja-przez-uart-id13472
https://www.carminenoviello.com/2015/03/02/how-to-use-stm32-nucleo-serial-port/