STM32 UART – Receive unknown size data using DMA and FreeRTOS

There are several situations where we need to use a UART/Serial interface to connect our microcontroller with an external device. However, a common issue is that in most of those cases we do not know in advance the size of the messages thus, our final application needs to use either per character interrupt or a more advanced way like DMAs. Each method has it’s own pros/cons. As you can...

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