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set moder::ALTERNATE last when configuring pins to AF modes.

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- as per STM32F4xx_hal's impl
This commit is contained in:
Joshua Salzedo 2021-09-27 15:27:43 -07:00
parent 6aa675994d
commit 67e2f9159c
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GPG Key ID: C3D0EB484493B731
1 changed files with 4 additions and 3 deletions
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7
embassy-stm32/src/gpio.rs
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@ -310,9 +310,6 @@ pub(crate) mod sealed {
unsafe fn set_as_af(&self, af_num: u8, af_type: OutputType) { unsafe fn set_as_af(&self, af_num: u8, af_type: OutputType) {
let pin = self._pin() as usize; let pin = self._pin() as usize;
let block = self.block(); let block = self.block();
block
.moder()
.modify(|w| w.set_moder(pin, vals::Moder::ALTERNATE));
block block
.afr(pin / 8) .afr(pin / 8)
.modify(|w| w.set_afr(pin % 8, vals::Afr(af_num))); .modify(|w| w.set_afr(pin % 8, vals::Afr(af_num)));
@ -327,6 +324,10 @@ pub(crate) mod sealed {
block block
.pupdr() .pupdr()
.modify(|w| w.set_pupdr(pin, vals::Pupdr::FLOATING)); .modify(|w| w.set_pupdr(pin, vals::Pupdr::FLOATING));
block
.moder()
.modify(|w| w.set_moder(pin, vals::Moder::ALTERNATE));
} }
unsafe fn set_as_analog(&self) { unsafe fn set_as_analog(&self) {