USART1 – STM32L100 Discovery bez použití Standard Peripheral Library
https://chiptron.cz/articles.php?article_id=60
https://chiptron.cz/articles.php?article_id=61
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USART1 – STM32L100 Discovery without Standard Peripheral Library
https://chiptron.cz/articles.php?article_id=60
https://chiptron.cz/articles.php?article_id=61