What's a good way to waste a clock cycle in STM32F4?
In the thread https://community.st.com/t5/stm32-mcus-embedded-software/why-does-my-tx-only-software-3-mbaud-uart-sometimes-send-strange/td-p/218077/page/2 I learned that "DSB" is a good way to waste a clock cycle in STM32F769. Now, what's a good way ...