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I am wondering whether STM system bootloader enables internal UART pull ups? I guess it doesn't, but I can't find this in ST docs.My board does not have external pull ups on UART line and I want to avoid having RX pin floating.
Posted on October 17, 2017 at 15:58According to http://www.st.com/content/ccc/resource/technical/document/application_note/group0/1d/b8/33/4f/dc/0a/45/52/DM00287601/files/DM00287601.pdf/jcr:content/translations/en.DM00287601.pdf, STM32F4 includes DS...