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Make vref units explicit

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This commit is contained in:
chemicstry
2022-07-27 14:13:59 +03:00
parent b1f0d6320e
commit 42434c75bc
3 changed files with 16 additions and 16 deletions
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10
embassy-stm32/src/adc/v4.rs
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@ -322,7 +322,7 @@ impl Prescaler {
pub struct Adc<'d, T: Instance> {
sample_time: SampleTime,
vref: u32,
vref_mv: u32,
resolution: Resolution,
phantom: PhantomData<&'d mut T>,
}
@ -360,7 +360,7 @@ impl<'d, T: Instance + crate::rcc::RccPeripheral> Adc<'d, T> {
let mut s = Self {
sample_time: Default::default(),
vref: VREF_DEFAULT_MV,
vref_mv: VREF_DEFAULT_MV,
resolution: Resolution::default(),
phantom: PhantomData,
};
@ -470,13 +470,13 @@ impl<'d, T: Instance + crate::rcc::RccPeripheral> Adc<'d, T> {
/// Set VREF value in millivolts. This value is used for [to_millivolts()] sample conversion.
///
/// Use this if you have a known precise VREF (VDDA) pin reference voltage.
pub fn set_vref(&mut self, vref: u32) {
self.vref = vref;
pub fn set_vref_mv(&mut self, vref_mv: u32) {
self.vref_mv = vref_mv;
}
/// Convert a measurement to millivolts
pub fn to_millivolts(&self, sample: u16) -> u16 {
((u32::from(sample) * self.vref) / self.resolution.to_max_count()) as u16
((u32::from(sample) * self.vref_mv) / self.resolution.to_max_count()) as u16
}
/// Perform a single conversion.