From df7174ecb03f466d4b97f2ce1a11e687317bd93a Mon Sep 17 00:00:00 2001 From: chemicstry Date: Fri, 7 Oct 2022 14:31:55 +0300 Subject: Fix internal channel reading on adc_v2 --- examples/stm32f4/src/bin/adc.rs | 25 ++++++++++++++++++++++--- 1 file changed, 22 insertions(+), 3 deletions(-) (limited to 'examples') diff --git a/examples/stm32f4/src/bin/adc.rs b/examples/stm32f4/src/bin/adc.rs index 871185074..6f80c1ef1 100644 --- a/examples/stm32f4/src/bin/adc.rs +++ b/examples/stm32f4/src/bin/adc.rs @@ -2,9 +2,10 @@ #![no_main] #![feature(type_alias_impl_trait)] +use cortex_m::prelude::_embedded_hal_blocking_delay_DelayUs; use defmt::*; use embassy_executor::Spawner; -use embassy_stm32::adc::Adc; +use embassy_stm32::adc::{Adc, SampleTime, Temperature, VrefInt}; use embassy_time::{Delay, Duration, Timer}; use {defmt_rtt as _, panic_probe as _}; @@ -13,12 +14,30 @@ async fn main(_spawner: Spawner) { let p = embassy_stm32::init(Default::default()); info!("Hello World!"); - let mut adc = Adc::new(p.ADC1, &mut Delay); + let mut delay = Delay; + let mut adc = Adc::new(p.ADC1, &mut delay); let mut pin = p.PC1; + let mut vrefint = adc.enable_vrefint(); + let mut temp = adc.enable_temperature(); + + // Startup delay can be combined to the maximum of either + delay.delay_us(Temperature::start_time_us().max(VrefInt::start_time_us())); + loop { + // Read pin let v = adc.read(&mut pin); - info!("--> {} - {} mV", v, adc.to_millivolts(v)); + info!("PC1: {} ({} mV)", v, adc.to_millivolts(v)); + + // Read internal temperature + let v = adc.read_internal(&mut temp); + let celcius = Temperature::to_celcius(adc.to_millivolts(v)); + info!("Internal temp: {} ({} C)", v, celcius); + + // Read internal voltage reference + let v = adc.read_internal(&mut vrefint); + info!("VrefInt: {} ({} mV)", v, adc.to_millivolts(v)); + Timer::after(Duration::from_millis(100)).await; } } -- cgit