Zephyr and the Memory Footprint

Do you want to use Zephyr RTOS on a Microcontroller with only a few bytes of Flash? Let's try it!

On the Optimizing for Footprint doc site you will find some hints how to reduce the memory footprint. With this I could reduce the kernel to 6872 bytes. Ok, this is just the kernel to have an idea how much flash it needs. But how much does a small hello world application need, for example?

• https://docs.zephyrproject.org/latest/guides/optimizations/footprint.html

• https://docs.zephyrproject.org/latest/guides/optimizations/tools.html