Reorganize variables and fns structure
This commit is contained in:
parent
784fc03957
commit
c7d36bc8d5
@ -1,5 +1,6 @@
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use super::{gpio, sys_timer, usb};
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use crate::laser_diode::current_sources::*;
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use crate::laser_diode::pd_mon::PdMon;
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use crate::thermostat::max1968::{MAX1968};
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use crate::thermostat::thermostat::Thermostat;
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use fugit::ExtU32;
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@ -38,7 +39,7 @@ pub fn bootup(
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sys_timer::setup(core_perif.SYST, clocks);
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let (_eth_pins, usb, current_source_phy, max1968_phy) = gpio::setup(
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let (_eth_pins, usb, current_source_phy, pd_mon_phy, max1968_phy) = gpio::setup(
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clocks,
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perif.TIM4,
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perif.GPIOA,
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@ -65,6 +66,9 @@ pub fn bootup(
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laser.setup();
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laser.set_current(0.1).unwrap();
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let mut pd_mon = PdMon::new(pd_mon_phy, perif.ADC2);
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let tec_driver = MAX1968::new(max1968_phy, perif.ADC1);
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let mut thermostat = Thermostat::new(tec_driver);
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@ -1,4 +1,5 @@
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use crate::laser_diode::current_sources::*;
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use crate::laser_diode::pd_mon::PdMonPhy;
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use crate::thermostat::ad5680;
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use crate::thermostat::max1968::{Channel0, MAX1968PinSet, MAX1968Phy, PWM_FREQ_KHZ};
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use fugit::RateExtU32;
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@ -36,8 +37,8 @@ pub fn setup(
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EthernetPins,
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USB,
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CurrentSourcePhyConstruct<CurrentSourcePhyCh0>,
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PdMonPhy,
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MAX1968Phy<Channel0>,
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// photo_diode_phy,
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// thermostat_phy
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) {
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let gpioa = gpioa.split();
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@ -86,6 +87,10 @@ pub fn setup(
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current_source_short: gpioa.pa4.into_push_pull_output(),
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};
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let pd_mon_phy = PdMonPhy {
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ch0_pin: gpioa.pa3.into_analog()
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};
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let pwm_chs = (
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gpiob.pb6.into_alternate(),
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gpiob.pb7.into_alternate(),
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@ -121,5 +126,5 @@ pub fn setup(
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max_i_neg: max_i_neg0,
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});
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(eth_pins, usb, current_source_phy, max1968_phy)
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(eth_pins, usb, current_source_phy, pd_mon_phy, max1968_phy)
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}
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@ -1,12 +1,13 @@
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use stm32f4xx_hal::{
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gpio::{gpioa::*, gpiob::*, gpiod::*, Alternate, Output, PushPull, PD9},
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gpio::{gpioa::*, gpiob::*, gpiod::*, Alternate, Output, PushPull, Analog, PD9},
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hal::{blocking::spi::Write, digital::v2::OutputPin},
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pac::SPI2,
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spi::{NoMiso, Spi, TransferModeNormal},
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};
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use crate::device::sys_timer::sleep;
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pub trait CurrentSourcePhy {
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pub trait ChannelPins {
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type PdMonPin;
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type CurrentSourceLdoEn: OutputPin;
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type CurrentSourceShort: OutputPin;
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type Max5719Load: OutputPin;
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@ -14,7 +15,7 @@ pub trait CurrentSourcePhy {
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type Max5719Spi: Write<u8>;
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}
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pub struct CurrentSourcePhyConstruct<C: CurrentSourcePhy> {
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pub struct CurrentSourcePhyConstruct<C: ChannelPins> {
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pub max5719_spi: C::Max5719Spi,
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pub max5719_load: C::Max5719Load,
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pub max5719_cs: C::Max5719Cs,
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@ -24,14 +25,15 @@ pub struct CurrentSourcePhyConstruct<C: CurrentSourcePhy> {
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pub struct CurrentSourceSettings {
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pub output_current: f32,
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}
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pub struct CurrentSource<C: CurrentSourcePhy> {
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pub struct CurrentSource<C: ChannelPins> {
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pub phy: CurrentSourcePhyConstruct<C>,
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pub setting: CurrentSourceSettings,
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}
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pub struct CurrentSourcePhyCh0;
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pub struct Channel0;
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impl CurrentSourcePhy for CurrentSourcePhyCh0 {
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impl ChannelPins for Channel0 {
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type PdMonPin = PA3<Analog>;
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type CurrentSourceLdoEn = PD9<Output<PushPull>>;
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type CurrentSourceShort = PA4<Output<PushPull>>;
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type Max5719Load = PB14<Output<PushPull>>;
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@ -40,7 +42,7 @@ impl CurrentSourcePhy for CurrentSourcePhyCh0 {
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Spi<SPI2, (PB10<Alternate<5>>, NoMiso, PB15<Alternate<5>>), TransferModeNormal>;
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}
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impl<C: CurrentSourcePhy> CurrentSource<C> {
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impl<C: ChannelPins> CurrentSource<C> {
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pub fn setup(&mut self) {
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let _ = self.phy.max5719_load.set_high();
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let _ = self.phy.max5719_cs.set_high();
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@ -53,7 +55,7 @@ impl<C: CurrentSourcePhy> CurrentSource<C> {
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pub fn set_current(
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&mut self,
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current: f32,
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) -> Result<(), <<C as CurrentSourcePhy>::Max5719Spi as Write<u8>>::Error> {
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) -> Result<(), <<C as ChannelPins>::Max5719Spi as Write<u8>>::Error> {
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let _ = self.phy.max5719_load.set_high();
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let _ = self.phy.max5719_cs.set_low();
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self.setting.output_current = current * 10.0 / 0.75;
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@ -1 +1 @@
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pub mod current_sources;
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pub mod current_sources;
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@ -2,7 +2,7 @@ use core::marker::PhantomData;
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use core::u16;
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use crate::thermostat::ad5680;
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use crate::thermostat::thermostat::{DAC_OUT_V_MAX, TEC_VSEC_BIAS_V};
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use crate::thermostat::thermostat::Settings;
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use fugit::KilohertzU32;
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use stm32f4xx_hal::{
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@ -59,8 +59,6 @@ impl ChannelPins for Channel0 {
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}
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pub struct MAX1968Phy<C: ChannelPins> {
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// state
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pub center_pt: ElectricPotential,
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pub dac: ad5680::Dac<C::DacSpi, C::DacSync>,
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pub shdn: C::ShdnPin,
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pub vref_pin: C::VRefPin,
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@ -86,12 +84,6 @@ pub struct MAX1968PinSet<C: ChannelPins> {
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type DacSpi = Spi<SPI1, (PB3<Alternate<5>>, NoMiso, PB5<Alternate<5>>), TransferModeNormal>;
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type DacSync = PB4<Output<PushPull>>;
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pub struct MaxAdcPins {
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pub dac_vfb: PC0<Analog>,
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pub vref: PA6<Analog>,
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pub itec: PB1<Analog>,
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pub vtec: PB0<Analog>,
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}
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pub struct MAX1968 {
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// settings
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@ -115,7 +107,6 @@ pub enum AdcReadTarget {
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impl<C: ChannelPins> MAX1968Phy<C> {
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pub fn new(pins: MAX1968PinSet<C>) -> Self {
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MAX1968Phy {
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center_pt: ElectricPotential::new::<volt>(1.5),
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dac: pins.dac,
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shdn: pins.shdn,
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vref_pin: pins.vref_pin,
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@ -143,27 +134,17 @@ impl MAX1968 {
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}
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}
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// pub fn setup(&mut self) {
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// self.power_down();
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// let vref = self.adc_read(AdcReadTarget::VREF, 2048);
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// self.set_center_point(vref);
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// }
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pub fn power_down(&mut self) {
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let _ = self.phy.shdn.set_low();
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self.phy.shdn.set_low();
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}
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pub fn power_up(&mut self) {
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let _ = self.phy.shdn.set_high();
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self.phy.shdn.set_high();
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}
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pub fn set_center_point(&mut self, value: ElectricPotential) {
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self.phy.center_pt = value;
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}
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pub fn set_dac(&mut self, voltage: ElectricPotential) -> ElectricPotential {
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let value = ((voltage / ElectricPotential::new::<volt>(DAC_OUT_V_MAX)).get::<ratio>()
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pub fn set_dac(&mut self, voltage: ElectricPotential, dac_out_v_max: ElectricPotential) -> ElectricPotential {
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let value = ((voltage / dac_out_v_max).get::<ratio>()
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* (ad5680::MAX_VALUE as f64)) as u32;
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self.phy.dac.set(value).unwrap();
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// TODO: Store the set-ed DAC Voltage Value
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@ -216,25 +197,6 @@ impl MAX1968 {
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ElectricPotential::new::<millivolt>(mv as f64)
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}
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pub fn get_vref(&mut self) -> ElectricPotential {
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self.adc_read(AdcReadTarget::VREF, 16)
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}
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pub fn get_dac_vfb(&mut self) -> ElectricPotential {
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self.adc_read(AdcReadTarget:: DacVfb, 16)
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}
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pub fn get_tec_i(&mut self) -> ElectricCurrent {
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(self.adc_read(AdcReadTarget::ITec, 1) - self.phy.center_pt)
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/ ElectricalResistance::new::<ohm>(0.4)
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}
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pub fn get_tec_v(&mut self) -> ElectricPotential {
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// Fixme: Rev0_2 has Analog Input Polarity Reversed
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// Remove the -ve sign for Rev0_3
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-(self.adc_read(AdcReadTarget::VTec, 1) - TEC_VSEC_BIAS_V) * 4.0
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}
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pub fn set_pwm(&mut self, pwm_pin: PwmPinsEnum, duty: f64, max_duty: f64) -> f64 {
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fn set<P: hal::PwmPin<Duty = u16>>(pin: &mut P, duty: f64) -> f64 {
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let max = pin.get_max_duty();
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@ -3,13 +3,15 @@ use crate::sys_timer;
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use crate::thermostat::ad5680;
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use crate::thermostat::max1968::{MAX1968, AdcReadTarget, PwmPinsEnum};
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use log::info;
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use miniconf::serde::de::value;
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use uom::si::{
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electric_current::ampere,
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electric_potential::{millivolt, volt},
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electric_potential::volt,
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electrical_resistance::ohm,
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f64::{ElectricCurrent, ElectricPotential, ElectricalResistance},
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ratio::ratio,
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};
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use miniconf::Miniconf;
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pub const R_SENSE: ElectricalResistance = ElectricalResistance {
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dimension: PhantomData,
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@ -17,72 +19,99 @@ pub const R_SENSE: ElectricalResistance = ElectricalResistance {
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value: 0.05,
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};
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// Rev 0_2: DAC Chip connects 3V3 reference voltage and thus provide 0-3.3V output range
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// TODO: Rev 0_3: DAC Chip connects 3V3 reference voltage,
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// which is then passed through a resistor divider to provide 0-3V output range
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pub const DAC_OUT_V_MAX: f64 = 3.3;
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pub const TEC_VSEC_BIAS_V: ElectricPotential = ElectricPotential {
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dimension: PhantomData,
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units: PhantomData,
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value: 1.65,
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};
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#[derive(Clone, Debug, Miniconf)]
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pub struct Settings {
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pub center_pt: ElectricPotential,
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pub max_v_set: ElectricPotential,
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pub max_i_pos_set: ElectricCurrent,
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pub max_i_neg_set: ElectricCurrent,
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pub i_set: ElectricCurrent,
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}
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// Kirdy Design Specs:
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// MaxV = 5.0V
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// MAX Current = +- 1.0A
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const MAX_V_DUTY_TO_CURRENT_RATE: ElectricPotential = ElectricPotential {
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dimension: PhantomData,
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units: PhantomData,
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value: 4.0 * 3.3,
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};
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pub const MAX_V_MAX: ElectricPotential = ElectricPotential {
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dimension: PhantomData,
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units: PhantomData,
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value: 5.0,
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};
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const MAX_V_DUTY_MAX: f64 = MAX_V_MAX.value / MAX_V_DUTY_TO_CURRENT_RATE.value;
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const MAX_I_POS_NEG_DUTY_TO_CURRENT_RATE: ElectricCurrent = ElectricCurrent {
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dimension: PhantomData,
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units: PhantomData,
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value: 1.0 / (10.0 * R_SENSE.value / 3.3),
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};
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pub const MAX_I_POS_CURRENT: ElectricCurrent = ElectricCurrent {
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dimension: PhantomData,
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units: PhantomData,
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value: 1.0,
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};
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pub const MAX_I_NEG_CURRENT: ElectricCurrent = ElectricCurrent {
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dimension: PhantomData,
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units: PhantomData,
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value: 1.0,
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};
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// .get::<ratio>() is not implemented for const
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const MAX_I_POS_DUTY_MAX: f64 = MAX_I_POS_CURRENT.value / MAX_I_POS_NEG_DUTY_TO_CURRENT_RATE.value;
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const MAX_I_NEG_DUTY_MAX: f64 = MAX_I_NEG_CURRENT.value / MAX_I_POS_NEG_DUTY_TO_CURRENT_RATE.value;
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impl Settings{
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// FixMe: Rev0_2 is 3.3V max while Rev0_3 is 3.0V max
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pub const DAC_OUT_V_MAX: ElectricPotential = ElectricPotential {
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dimension: PhantomData,
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units: PhantomData,
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value: 3.3,
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};
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pub const TEC_VSEC_BIAS_V: ElectricPotential = ElectricPotential {
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dimension: PhantomData,
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units: PhantomData,
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value: 1.65,
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};
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// Kirdy Design Specs:
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// MaxV = 5.0V
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// MAX Current = +- 1.0A
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const MAX_V_DUTY_TO_CURRENT_RATE: ElectricPotential = ElectricPotential {
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dimension: PhantomData,
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units: PhantomData,
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value: 4.0 * 3.3,
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};
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pub const MAX_V_MAX: ElectricPotential = ElectricPotential {
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dimension: PhantomData,
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units: PhantomData,
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value: 5.0,
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};
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const MAX_V_DUTY_MAX: f64 = Settings::MAX_V_MAX.value / Settings::MAX_V_DUTY_TO_CURRENT_RATE.value;
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const MAX_I_POS_NEG_DUTY_TO_CURRENT_RATE: ElectricCurrent = ElectricCurrent {
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dimension: PhantomData,
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units: PhantomData,
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value: 1.0 / (10.0 * R_SENSE.value / 3.3),
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};
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pub const MAX_I_POS_CURRENT: ElectricCurrent = ElectricCurrent {
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dimension: PhantomData,
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units: PhantomData,
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value: 1.0,
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};
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pub const MAX_I_NEG_CURRENT: ElectricCurrent = ElectricCurrent {
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dimension: PhantomData,
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units: PhantomData,
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value: 1.0,
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};
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// .get::<ratio>() is not implemented for const
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const MAX_I_POS_DUTY_MAX: f64 = Settings::MAX_I_POS_CURRENT.value / Settings::MAX_I_POS_NEG_DUTY_TO_CURRENT_RATE.value;
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const MAX_I_NEG_DUTY_MAX: f64 = Settings::MAX_I_NEG_CURRENT.value / Settings::MAX_I_POS_NEG_DUTY_TO_CURRENT_RATE.value;
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}
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impl Default for Settings {
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fn default() -> Self {
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Self {
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center_pt: ElectricPotential::new::<volt>(1.5),
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max_v_set: ElectricPotential::new::<volt>(5.0),
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max_i_pos_set: ElectricCurrent::new::<ampere>(1.0),
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max_i_neg_set: ElectricCurrent::new::<ampere>(1.0),
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i_set: ElectricCurrent::new::<ampere>(0.0),
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}
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}
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}
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pub struct Thermostat {
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max1968: MAX1968,
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pub tec_setting: Settings,
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// TADC
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}
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impl Thermostat{
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pub fn new (max1968: MAX1968) -> Self {
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Thermostat{
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max1968
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max1968: max1968,
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tec_setting: Settings::default(),
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}
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}
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pub fn setup(&mut self) {
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self.power_down();
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self.power_up();
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self.tec_setting = Settings::default();
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self.calibrate_dac_value();
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self.set_i(ElectricCurrent::new::<ampere>(0.0));
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self.set_i(self.tec_setting.i_set);
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self.set_max_v(ElectricPotential::new::<volt>(5.0));
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self.set_max_i_pos(ElectricCurrent::new::<ampere>(1.0));
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self.set_max_i_neg(ElectricCurrent::new::<ampere>(1.0));
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self.max1968.power_up();
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self.set_max_v(self.tec_setting.max_v_set);
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self.set_max_i_pos(self.tec_setting.max_i_pos_set);
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self.set_max_i_neg(self.tec_setting.max_i_neg_set);
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}
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pub fn power_up(&mut self){
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@ -93,29 +122,56 @@ impl Thermostat{
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self.max1968.power_down();
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}
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fn set_center_pt(&mut self, value: ElectricPotential){
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info!("set center pt: {:?}", value);
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self.tec_setting.center_pt = value;
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}
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pub fn set_i(&mut self, i_tec: ElectricCurrent) -> ElectricCurrent {
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let voltage = i_tec * 10.0 * R_SENSE + self.max1968.phy.center_pt;
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let voltage = self.max1968.set_dac(voltage);
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let i_tec = (voltage - self.max1968.phy.center_pt) / (10.0 * R_SENSE);
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i_tec
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let voltage = i_tec * 10.0 * R_SENSE + self.tec_setting.center_pt;
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let voltage = self.max1968.set_dac(voltage, Settings::DAC_OUT_V_MAX);
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self.tec_setting.i_set = (voltage - self.tec_setting.center_pt) / (10.0 * R_SENSE);
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self.tec_setting.i_set
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}
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pub fn set_max_v(&mut self, max_v: ElectricPotential) -> ElectricPotential {
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let duty = (max_v / MAX_V_DUTY_TO_CURRENT_RATE).get::<ratio>();
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let duty = self.max1968.set_pwm(PwmPinsEnum::MaxV, duty, MAX_V_DUTY_MAX);
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duty * MAX_V_DUTY_TO_CURRENT_RATE
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let duty = (max_v / Settings::MAX_V_DUTY_TO_CURRENT_RATE).get::<ratio>();
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let duty = self.max1968.set_pwm(PwmPinsEnum::MaxV, duty, Settings::MAX_V_DUTY_MAX);
|
||||
self.tec_setting.max_v_set = duty * Settings::MAX_V_DUTY_TO_CURRENT_RATE;
|
||||
self.tec_setting.max_v_set
|
||||
}
|
||||
|
||||
pub fn set_max_i_pos(&mut self, max_i_pos: ElectricCurrent) -> ElectricCurrent {
|
||||
let duty = (max_i_pos / MAX_I_POS_NEG_DUTY_TO_CURRENT_RATE).get::<ratio>();
|
||||
let duty = self.max1968.set_pwm(PwmPinsEnum::MaxPosI, duty, MAX_I_POS_DUTY_MAX);
|
||||
duty * MAX_I_POS_NEG_DUTY_TO_CURRENT_RATE
|
||||
let duty = (max_i_pos / Settings::MAX_I_POS_NEG_DUTY_TO_CURRENT_RATE).get::<ratio>();
|
||||
let duty = self.max1968.set_pwm(PwmPinsEnum::MaxPosI, duty, Settings::MAX_I_POS_DUTY_MAX);
|
||||
self.tec_setting.max_i_pos_set = duty * Settings::MAX_I_POS_NEG_DUTY_TO_CURRENT_RATE;
|
||||
self.tec_setting.max_i_pos_set
|
||||
}
|
||||
|
||||
pub fn set_max_i_neg(&mut self, max_i_neg: ElectricCurrent) -> ElectricCurrent {
|
||||
let duty = (max_i_neg / MAX_I_POS_NEG_DUTY_TO_CURRENT_RATE).get::<ratio>();
|
||||
let duty = self.max1968.set_pwm(PwmPinsEnum::MaxNegI, duty, MAX_I_NEG_DUTY_MAX);
|
||||
duty * MAX_I_POS_NEG_DUTY_TO_CURRENT_RATE
|
||||
let duty = (max_i_neg / Settings::MAX_I_POS_NEG_DUTY_TO_CURRENT_RATE).get::<ratio>();
|
||||
let duty = self.max1968.set_pwm(PwmPinsEnum::MaxNegI, duty, Settings::MAX_I_NEG_DUTY_MAX);
|
||||
self.tec_setting.max_i_neg_set = duty * Settings::MAX_I_POS_NEG_DUTY_TO_CURRENT_RATE;
|
||||
self.tec_setting.max_i_neg_set
|
||||
}
|
||||
|
||||
pub fn get_dac_vfb(&mut self) -> ElectricPotential {
|
||||
self.max1968.adc_read(AdcReadTarget::DacVfb, 16)
|
||||
}
|
||||
|
||||
pub fn get_vref(&mut self) -> ElectricPotential {
|
||||
self.max1968.adc_read(AdcReadTarget::VREF, 16)
|
||||
}
|
||||
|
||||
pub fn get_tec_i(&mut self) -> ElectricCurrent {
|
||||
let vref = self.get_vref();
|
||||
(self.max1968.adc_read(AdcReadTarget::ITec, 16) - vref) / ElectricalResistance::new::<ohm>(0.4)
|
||||
}
|
||||
|
||||
pub fn get_tec_v(&mut self) -> ElectricPotential {
|
||||
// Fixme: Rev0_2 has Analog Input Polarity Reversed
|
||||
// Remove the -ve sign for Rev0_3
|
||||
-(self.max1968.adc_read(AdcReadTarget::VTec, 16) - Settings::TEC_VSEC_BIAS_V) * 4.0
|
||||
}
|
||||
|
||||
/// Calibrates the DAC output to match vref of the MAX driver to reduce zero-current offset of the MAX driver output.
|
||||
@ -135,19 +191,14 @@ impl Thermostat{
|
||||
/// VREF measurement can introduce significant noise at the current output, degrading the stabilily performance of the
|
||||
/// thermostat.
|
||||
pub fn calibrate_dac_value(&mut self) {
|
||||
let samples = 50;
|
||||
let mut target_voltage = ElectricPotential::new::<volt>(0.0);
|
||||
for _ in 0..samples {
|
||||
target_voltage = target_voltage + self.max1968.adc_read(AdcReadTarget::VREF, 1);
|
||||
}
|
||||
target_voltage = target_voltage / samples as f64;
|
||||
let target_voltage = self.max1968.adc_read(AdcReadTarget::VREF, 64);
|
||||
let mut start_value = 1;
|
||||
let mut best_error = ElectricPotential::new::<volt>(100.0);
|
||||
for step in (0..18).rev() {
|
||||
info!("Step: {} Calibrating", step);
|
||||
let mut prev_value = start_value;
|
||||
for value in (start_value..=ad5680::MAX_VALUE).step_by(1 << step) {
|
||||
//info!("Calibrating");
|
||||
info!("Calibrating: Value: {:?}", value);
|
||||
self.max1968.phy.dac.set(value).unwrap();
|
||||
sys_timer::sleep(5);
|
||||
|
||||
@ -159,12 +210,13 @@ impl Thermostat{
|
||||
best_error = error;
|
||||
start_value = prev_value;
|
||||
|
||||
let vref = (value as f64 / ad5680::MAX_VALUE as f64) * ElectricPotential::new::<volt>(DAC_OUT_V_MAX);
|
||||
self.max1968.set_center_point(vref);
|
||||
let vref = (value as f64 / ad5680::MAX_VALUE as f64) * Settings::DAC_OUT_V_MAX;
|
||||
self.set_center_pt(vref);
|
||||
}
|
||||
prev_value = value;
|
||||
}
|
||||
}
|
||||
info!("Best Error: {:?}", best_error);
|
||||
}
|
||||
|
||||
}
|
||||
Loading…
Reference in New Issue
Block a user