source doc link

BarnabyShearer · Nov 16, 2021 · 3e7c875 · 3e7c875
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 ----------
 
+The protocol is documented in AN945_.
+
 .. automodule:: efm8
    :members:
+
+.. _AN945: https://www.silabs.com/documents/public/application-notes/an945-efm8-factory-bootloader-user-guide.pdf