Thanks for the answer.
However, I'm afraid learning directly from an example would be an exercise in cargo cult programming, where one wanting to learn will have to copy/paste the whole project and snip bit by bit what seems to be specific to the example (communication between two boards) to keep the parts relevant to the subject (I2C with DMA).
I'd rather have an article focussed on a subject, in this case I2C with DMA.
First part gives a synthetic view of the processes, such as what the https://community.st.com/s/article/stm32-i2c-does-not-work article provides.
Then the MCU configuration could be addressed, with explanations of the different setting possibilities (with pros and cons). In such a case, how to add DMA settings to I2C configuration, etc.
Then a synthetic description of the main.c code what is in main(), what is in the infinite loop. Also a part on how settings can be changed on the fly if needed (peripherals with different speeds or addressing?) and of course the proper I2C transmitting and receiving functions.
It can be helpful for programmers who are not yet familiar with MCU.
Such an article would give away to make things work, to understand how it works, and where to look for for if on wants to make the process more efficient.
