Exploring printf on Cortex-M | Interrupt

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The C printf function is a staple of embedded development. It’s a simple way to get logs or debug statements off the system and into a terminal on the host. This article explores the various ways to get printf on Cortex-M microcontrollers.

This is a companion discussion topic for the original entry at https://interrupt.memfault.com/blog/printf-on-embedded
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If you are using C++ and in search for a type-safe, extensible alternative to printf which doesn’t take up to much flash memory, take a look at the library emio which provides a python/fmt like format/print/scan functionality.

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