Fix default mode of debug GPIO pins #82
Merged
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After reset, the debug GPIO pins (PA13, PA14, PA15, PB3, PB4) are in AF0
mode. This PR fixes the
gpio
code to reflect this.I've checked all the relevant RMs to verify this. It's easiest to just look at the reset values of the
GPIOx_MODER
register. Also all the RMs say "The debug pins are in AF pull-up/pull-down after reset".