iabdalkader 71afed1a70 stm32/mphalport: Fix I/O glitches when switching GPIO mode to alt-func.
To avoid any I/O glitches in mp_hal_pin_config, make sure a valid alternate
function is set in AFR first before switching the pin mode.  When switching
from AF to INPUT or OUTPUT, the AF in AFR will remain valid up until the
pin mode is switched.
2022-04-20 15:31:14 +10:00
..