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This commit is contained in:
Grant Miller
2022-10-24 15:01:16 -05:00
parent 545cc9326b
commit 7a6732adcf
3 changed files with 16 additions and 12 deletions
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8
examples/stm32f7/src/bin/adc.rs
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@ -16,14 +16,14 @@ async fn main(_spawner: Spawner) {
let mut adc = Adc::new(p.ADC1, &mut Delay);
let mut pin = p.PA3;
let mut vref = adc.enable_vrefint();
let vref_sample = adc.read_internal(&mut vref);
let mut vrefint = adc.enable_vrefint();
let vrefint_sample = adc.read_internal(&mut vrefint);
let convert_to_millivolts = |sample| {
// From http://www.st.com/resource/en/datasheet/DM00273119.pdf
// 6.3.27 Reference voltage
const VREF_MV: u32 = 1210;
const VREFINT_MV: u32 = 1210; // mV
(u32::from(sample) * VREF_MV / u32::from(vref_sample)) as u16
(u32::from(sample) * VREFINT_MV / u32::from(vrefint_sample)) as u16
};
loop {