forked from M-Labs/thermostat
add vref_pin
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3d6e1f18a6
commit
70127491f6
@ -19,6 +19,7 @@ pub struct Channel<C: ChannelPins> {
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pub shdn: C::Shdn,
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/// stm32f4 integrated adc
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pub adc: C::Adc,
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pub vref_pin: C::VRefPin,
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pub itec_pin: C::ItecPin,
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/// feedback from `dac` output
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pub dac_feedback_pin: C::DacFeedbackPin,
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@ -36,6 +37,7 @@ impl<C: ChannelPins> Channel<C> {
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dac,
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shdn: pins.shdn,
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adc: pins.adc,
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vref_pin: pins.vref_pin,
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itec_pin: pins.itec_pin,
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dac_feedback_pin: pins.dac_feedback_pin,
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tec_u_meas_pin: pins.tec_u_meas_pin,
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@ -142,6 +142,28 @@ impl Channels {
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}
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}
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pub fn read_vref(&mut self, channel: usize) -> Volts {
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match channel {
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0 => {
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let sample = self.channel0.adc.convert(
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&self.channel0.vref_pin,
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stm32f4xx_hal::adc::config::SampleTime::Cycles_480
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);
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let mv = self.channel0.adc.sample_to_millivolts(sample);
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Volts(mv as f64 / 1000.0)
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}
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1 => {
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let sample = self.channel1.adc.convert(
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&self.channel1.vref_pin,
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stm32f4xx_hal::adc::config::SampleTime::Cycles_480
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);
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let mv = self.channel1.adc.sample_to_millivolts(sample);
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Volts(mv as f64 / 1000.0)
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}
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_ => unreachable!(),
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}
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}
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pub fn read_tec_u_meas(&mut self, channel: usize) -> Volts {
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match channel {
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0 => {
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10
src/main.rs
10
src/main.rs
@ -43,7 +43,7 @@ mod command_parser;
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use command_parser::{Command, ShowCommand, PwmPin};
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mod timer;
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mod units;
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use units::{Amps, Ohms, Volts};
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use units::{Ohms, Volts};
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mod pid;
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mod steinhart_hart;
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mod channels;
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@ -143,19 +143,19 @@ fn main() -> ! {
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Command::Show(ShowCommand::Input) => {
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for channel in 0..CHANNELS {
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if let Some(adc_data) = channels.channel_state(channel).adc_data {
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let vref = channels.read_vref(channel);
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let dac_feedback = channels.read_dac_feedback(channel);
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let dac_i = dac_feedback / Ohms(5.0);
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let itec = channels.read_itec(channel);
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let tec_i = (itec - Volts(1.5)) / Ohms(0.4);
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let tec_i = -(itec - Volts(1.5)) / Ohms(0.4);
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let tec_u_meas = channels.read_tec_u_meas(channel);
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let state = channels.channel_state(channel);
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let _ = writeln!(
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socket, "t={} raw{}=0x{:06X} dac_feedback={}/{} itec={} tec={} tec_u_meas={}",
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socket, "t={} adc_raw{}=0x{:06X} vref={} dac_feedback={} itec={} tec={} tec_u_meas={}",
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state.adc_time, channel, adc_data,
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dac_feedback, dac_i,
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vref, dac_feedback,
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itec, tec_i,
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tec_u_meas,
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);
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@ -27,6 +27,7 @@ pub trait ChannelPins {
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type DacSync: OutputPin;
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type Shdn: OutputPin;
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type Adc;
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type VRefPin;
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type ItecPin;
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type DacFeedbackPin;
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type TecUMeasPin;
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@ -37,6 +38,7 @@ impl ChannelPins for Channel0 {
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type DacSync = PE4<Output<PushPull>>;
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type Shdn = PE10<Output<PushPull>>;
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type Adc = Adc<ADC1>;
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type VRefPin = PA0<Analog>;
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type ItecPin = PA6<Analog>;
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type DacFeedbackPin = PA4<Analog>;
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type TecUMeasPin = PC2<Analog>;
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@ -47,6 +49,7 @@ impl ChannelPins for Channel1 {
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type DacSync = PF6<Output<PushPull>>;
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type Shdn = PE15<Output<PushPull>>;
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type Adc = Adc<ADC2>;
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type VRefPin = PA3<Analog>;
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type ItecPin = PB0<Analog>;
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type DacFeedbackPin = PA5<Analog>;
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type TecUMeasPin = PC3<Analog>;
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@ -65,6 +68,7 @@ pub struct ChannelPinSet<C: ChannelPins> {
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pub dac_sync: C::DacSync,
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pub shdn: C::Shdn,
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pub adc: C::Adc,
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pub vref_pin: C::VRefPin,
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pub itec_pin: C::ItecPin,
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pub dac_feedback_pin: C::DacFeedbackPin,
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pub tec_u_meas_pin: C::TecUMeasPin,
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@ -120,6 +124,7 @@ impl Pins {
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let _ = shdn0.set_low();
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let mut adc0 = Adc::adc1(adc1, true, Default::default());
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adc0.enable();
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let vref0_pin = gpioa.pa0.into_analog();
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let itec0_pin = gpioa.pa6.into_analog();
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let dac_feedback0_pin = gpioa.pa4.into_analog();
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let tec_u_meas0_pin = gpioc.pc2.into_analog();
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@ -128,6 +133,7 @@ impl Pins {
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dac_sync: dac0_sync,
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shdn: shdn0,
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adc: adc0,
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vref_pin: vref0_pin,
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itec_pin: itec0_pin,
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dac_feedback_pin: dac_feedback0_pin,
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tec_u_meas_pin: tec_u_meas0_pin,
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@ -141,6 +147,7 @@ impl Pins {
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let _ = shdn1.set_low();
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let mut adc1 = Adc::adc2(adc2, true, Default::default());
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adc1.enable();
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let vref1_pin = gpioa.pa3.into_analog();
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let itec1_pin = gpiob.pb0.into_analog();
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let dac_feedback1_pin = gpioa.pa5.into_analog();
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let tec_u_meas1_pin = gpioc.pc3.into_analog();
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@ -149,6 +156,7 @@ impl Pins {
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dac_sync: dac1_sync,
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shdn: shdn1,
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adc: adc1,
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vref_pin: vref1_pin,
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itec_pin: itec1_pin,
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dac_feedback_pin: dac_feedback1_pin,
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tec_u_meas_pin: tec_u_meas1_pin,
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@ -1,6 +1,6 @@
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use core::{
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fmt,
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ops::{Add, Div, Sub},
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ops::{Add, Div, Neg, Sub},
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};
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macro_rules! impl_add_sub {
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@ -18,6 +18,13 @@ macro_rules! impl_add_sub {
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$Type(self.0 - rhs.0)
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}
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}
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impl Neg for $Type {
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type Output = $Type;
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fn neg(self) -> $Type {
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$Type(-self.0)
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}
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}
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}
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}
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