forked from M-Labs/thermostat
Refactor and coefficients implemented
Move all the fan logic to the separate file. Add controls for controlling curve. Signed-off-by: Egor Savkin <es@m-labs.hk>
This commit is contained in:
parent
66143d2373
commit
58650d37f1
10
README.md
10
README.md
|
|
@ -95,7 +95,7 @@ Send commands as simple text string terminated by `\n`. Responses are
|
|||
formatted as line-delimited JSON.
|
||||
|
||||
| Syntax | Function |
|
||||
|----------------------------------|----------------------------------------------------------------------|
|
||||
|----------------------------------|---------------------------------------------------------------------------|
|
||||
| `report` | Show current input |
|
||||
| `report mode` | Show current report mode |
|
||||
| `report mode <off/on>` | Set report mode |
|
||||
|
|
@ -126,6 +126,8 @@ formatted as line-delimited JSON.
|
|||
| `ipv4 <X.X.X.X/L> [Y.Y.Y.Y]` | Configure IPv4 address, netmask length, and optional default gateway |
|
||||
| `fan` | Show current fan settings and sensors' measurements |
|
||||
| `fan <value>` | Set fan power with values from 0 to 100, where 0 is auto mode |
|
||||
| `fcurve <a> <b> <c>` | Set fan controller coefficients (see *Fan control* section) |
|
||||
| `fan-restore` | Set fan controller coefficients to defaults (see *Fan control* section) |
|
||||
|
||||
|
||||
## USB
|
||||
|
|
@ -274,10 +276,14 @@ The thermostat implements a PID control loop for each of the TEC channels, more
|
|||
|
||||
## Fan control
|
||||
|
||||
Fan control is available for the thermostat revisions with integrated fan system. For this purpose two commands are available:
|
||||
Fan control is available for the thermostat revisions with integrated fan system. For this purpose four commands are available:
|
||||
1. `fan` - show fan stats: `fan_pwm`, `tacho`, `abs_max_tec_i`, `auto_mode`. Please note that `tacho` shows *approximate* value, which
|
||||
linearly correlates with the actual fan speed.
|
||||
2. `fan <value>` - set the fan power with the value from `0` to `100`. Since there is no hardware way to disable the fan,
|
||||
`0` value is used for enabling automatic fan control mode, which correlates with the square of the TEC's current.
|
||||
Values from `1` to `100` are used for setting the power from minimum to maximum respectively.
|
||||
Please note that power doesn't correlate with the actual speed linearly.
|
||||
3. `fcurve <a> <b> <c>` - set coefficients of the controlling curve `a*x^2 + b*x + c`, where `x` is `abs_max_tec_i/MAX_TEC_I`,
|
||||
i.e. receives values from 0 to 1 linearly tied to the maximum current. The controlling curve should produce values from 0 to 1,
|
||||
as below and beyond values would be substituted by 0 and 1 respectively.
|
||||
4. `fan-restore` - restore fan settings to defaults: `auto = true, a = 1.0, b = 0.0, c = 0.0`.
|
||||
|
|
|
|||
|
|
@ -19,22 +19,13 @@ use crate::{
|
|||
command_parser::{CenterPoint, PwmPin},
|
||||
pins,
|
||||
steinhart_hart,
|
||||
fan_ctrl::HWRev,
|
||||
};
|
||||
use crate::pins::HWRevPins;
|
||||
|
||||
pub const CHANNELS: usize = 2;
|
||||
pub const R_SENSE: f64 = 0.05;
|
||||
// DAC chip outputs 0-5v, which is then passed through a resistor dividor to provide 0-3v range
|
||||
const DAC_OUT_V_MAX: f64 = 3.0;
|
||||
const MAX_TEC_I: f64 = 3.0; // as stated in the schemes
|
||||
const MAX_FAN_PWM: f64 = 100.0;
|
||||
const MIN_FAN_PWM: f64 = 1.0;
|
||||
|
||||
#[derive(Serialize, Copy, Clone)]
|
||||
pub struct HWRev {
|
||||
pub major: u8,
|
||||
pub minor: u8
|
||||
}
|
||||
|
||||
// TODO: -pub
|
||||
pub struct Channels {
|
||||
|
|
@ -44,8 +35,7 @@ pub struct Channels {
|
|||
/// stm32f4 integrated adc
|
||||
pins_adc: pins::PinsAdc,
|
||||
pub pwm: pins::PwmPins,
|
||||
hw_rev: HWRev,
|
||||
fan_auto: bool
|
||||
pub hwrev: HWRev,
|
||||
}
|
||||
|
||||
impl Channels {
|
||||
|
|
@ -68,7 +58,7 @@ impl Channels {
|
|||
let pins_adc = pins.pins_adc;
|
||||
let pwm = pins.pwm;
|
||||
let mut channels = Channels { channel0, channel1, adc, pins_adc, pwm,
|
||||
hw_rev: Self::detect_hw_rev(&pins.hwrev), fan_auto: true };
|
||||
hwrev: HWRev::detect_hw_rev(&pins.hwrev)};
|
||||
for channel in 0..CHANNELS {
|
||||
channels.channel_state(channel).vref = channels.read_vref(channel);
|
||||
channels.calibrate_dac_value(channel);
|
||||
|
|
@ -77,21 +67,6 @@ impl Channels {
|
|||
channels
|
||||
}
|
||||
|
||||
fn detect_hw_rev(hwrev_pins: &HWRevPins) -> HWRev {
|
||||
let (h0, h1, h2, h3) = (hwrev_pins.hwrev0.is_high(), hwrev_pins.hwrev1.is_high(),
|
||||
hwrev_pins.hwrev2.is_high(), hwrev_pins.hwrev3.is_high());
|
||||
match (h0, h1, h2, h3) {
|
||||
(true, true, true, false) => HWRev {major: 1, minor: 0} ,
|
||||
(true, false, false, false) => HWRev {major: 2, minor: 0} ,
|
||||
(false, true, false, false) => HWRev {major: 2, minor: 2} ,
|
||||
(_, _, _, _) => HWRev {major: 0, minor: 0}
|
||||
}
|
||||
}
|
||||
|
||||
pub fn fan_available(&self) -> bool {
|
||||
self.hw_rev.major == 2 && self.hw_rev.minor == 2
|
||||
}
|
||||
|
||||
pub fn channel_state<I: Into<usize>>(&mut self, channel: I) -> &mut ChannelState {
|
||||
match channel.into() {
|
||||
0 => &mut self.channel0.state,
|
||||
|
|
@ -365,8 +340,6 @@ impl Channels {
|
|||
match (channel, pin) {
|
||||
(_, PwmPin::ISet) =>
|
||||
panic!("i_set is no pwm pin"),
|
||||
(_, PwmPin::Fan) =>
|
||||
get(&self.pwm.fan),
|
||||
(0, PwmPin::MaxIPos) =>
|
||||
get(&self.pwm.max_i_pos0),
|
||||
(0, PwmPin::MaxINeg) =>
|
||||
|
|
@ -422,8 +395,6 @@ impl Channels {
|
|||
match (channel, pin) {
|
||||
(_, PwmPin::ISet) =>
|
||||
panic!("i_set is no pwm pin"),
|
||||
(_, PwmPin::Fan) =>
|
||||
set(&mut self.pwm.fan, duty),
|
||||
(0, PwmPin::MaxIPos) =>
|
||||
set(&mut self.pwm.max_i_pos0, duty),
|
||||
(0, PwmPin::MaxINeg) =>
|
||||
|
|
@ -462,19 +433,6 @@ impl Channels {
|
|||
(duty * max, max)
|
||||
}
|
||||
|
||||
pub fn set_fan_pwm(&mut self, fan_pwm: u32) -> f64 {
|
||||
let duty = fan_pwm as f64 / MAX_FAN_PWM;
|
||||
self.set_pwm(0, PwmPin::Fan, duty)
|
||||
}
|
||||
|
||||
pub fn get_fan_pwm(&mut self) -> u32 {
|
||||
(self.get_pwm(0, PwmPin::Fan) * MAX_FAN_PWM) as u32
|
||||
}
|
||||
|
||||
pub fn set_fan_auto_mode(&mut self, fan_auto: bool) {
|
||||
self.fan_auto = fan_auto;
|
||||
}
|
||||
|
||||
fn report(&mut self, channel: usize) -> Report {
|
||||
let vref = self.channel_state(channel).vref;
|
||||
let i_set = self.get_i(channel);
|
||||
|
|
@ -500,7 +458,7 @@ impl Channels {
|
|||
tec_i,
|
||||
tec_u_meas: self.get_tec_v(channel),
|
||||
pid_output,
|
||||
hwrev: self.hw_rev
|
||||
hwrev: self.hwrev
|
||||
}
|
||||
}
|
||||
|
||||
|
|
@ -566,39 +524,14 @@ impl Channels {
|
|||
serde_json_core::to_vec(&summaries)
|
||||
}
|
||||
|
||||
fn current_abs_max_tec_i(&mut self) -> f64 {
|
||||
pub fn current_abs_max_tec_i(&mut self) -> f64 {
|
||||
max_by(self.get_tec_i(0).abs().get::<ampere>(),
|
||||
self.get_tec_i(1).abs().get::<ampere>(),
|
||||
|a, b| a.partial_cmp(b).unwrap_or(core::cmp::Ordering::Equal))
|
||||
}
|
||||
|
||||
pub fn fan_summary(&mut self, tacho: Option<u32>) -> Result<JsonBuffer, serde_json_core::ser::Error> {
|
||||
if self.fan_available() {
|
||||
let summary = FanSummary {
|
||||
fan_pwm: self.get_fan_pwm(),
|
||||
tacho: tacho.unwrap_or(u32::MAX),
|
||||
abs_max_tec_i: self.current_abs_max_tec_i(),
|
||||
auto_mode: self.fan_auto
|
||||
};
|
||||
serde_json_core::to_vec(&summary)
|
||||
} else {
|
||||
let summary: Option<()> = None;
|
||||
serde_json_core::to_vec(&summary)
|
||||
}
|
||||
}
|
||||
|
||||
pub fn fan_ctrl(&mut self) {
|
||||
if self.fan_auto && self.fan_available() {
|
||||
let scaled_current = self.current_abs_max_tec_i() / MAX_TEC_I;
|
||||
let pwm = max_by(scaled_current * scaled_current * MAX_FAN_PWM,
|
||||
MIN_FAN_PWM,
|
||||
|a, b| a.partial_cmp(b).unwrap_or(core::cmp::Ordering::Equal)) as u32;
|
||||
self.set_fan_pwm(pwm);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
type JsonBuffer = Vec<u8, U1024>;
|
||||
pub type JsonBuffer = Vec<u8, U1024>;
|
||||
|
||||
#[derive(Serialize)]
|
||||
pub struct Report {
|
||||
|
|
@ -670,11 +603,3 @@ pub struct SteinhartHartSummary {
|
|||
channel: usize,
|
||||
params: steinhart_hart::Parameters,
|
||||
}
|
||||
|
||||
#[derive(Serialize)]
|
||||
pub struct FanSummary {
|
||||
fan_pwm: u32,
|
||||
tacho: u32,
|
||||
abs_max_tec_i: f64,
|
||||
auto_mode: bool,
|
||||
}
|
||||
|
|
|
|||
|
|
@ -22,7 +22,8 @@ use super::{
|
|||
config::ChannelConfig,
|
||||
dfu,
|
||||
flash_store::FlashStore,
|
||||
session::Session
|
||||
session::Session,
|
||||
FanCtrl,
|
||||
};
|
||||
|
||||
use uom::{
|
||||
|
|
@ -199,9 +200,6 @@ impl Handler {
|
|||
let current = ElectricCurrent::new::<ampere>(value);
|
||||
channels.set_max_i_neg(channel, current);
|
||||
}
|
||||
PwmPin::Fan => {
|
||||
channels.set_fan_pwm(value as u32);
|
||||
}
|
||||
}
|
||||
send_line(socket, b"{}");
|
||||
Ok(Handler::Handled)
|
||||
|
|
@ -344,14 +342,14 @@ impl Handler {
|
|||
Ok(Handler::Reset)
|
||||
}
|
||||
|
||||
fn fan (socket: &mut TcpSocket, channels: &mut Channels, fan_pwm: Option<u32>, tacho_value: Option<u32>) -> Result<Handler, Error> {
|
||||
fn fan (socket: &mut TcpSocket, fan_pwm: Option<u32>, fan_ctrl: &mut FanCtrl) -> Result<Handler, Error> {
|
||||
match fan_pwm {
|
||||
Some(val) => {
|
||||
channels.set_fan_auto_mode(val == 0);
|
||||
channels.set_fan_pwm(val);
|
||||
fan_ctrl.set_auto_mode(val == 0);
|
||||
fan_ctrl.set_pwm(val);
|
||||
},
|
||||
None => {
|
||||
match channels.fan_summary(tacho_value) {
|
||||
match fan_ctrl.summary() {
|
||||
Ok(buf) => {
|
||||
send_line(socket, &buf);
|
||||
return Ok(Handler::Handled);
|
||||
|
|
@ -368,7 +366,19 @@ impl Handler {
|
|||
Ok(Handler::Handled)
|
||||
}
|
||||
|
||||
pub fn handle_command (command: Command, socket: &mut TcpSocket, channels: &mut Channels, session: &Session, leds: &mut Leds, store: &mut FlashStore, ipv4_config: &mut Ipv4Config, tacho_value: Option<u32>) -> Result<Self, Error> {
|
||||
fn fan_coeff (socket: &mut TcpSocket, fan_ctrl: &mut FanCtrl, k_a: f64, k_b: f64, k_c: f64) -> Result<Handler, Error> {
|
||||
fan_ctrl.set_coefficients(k_a, k_b, k_c);
|
||||
send_line(socket, b"{}");
|
||||
Ok(Handler::Handled)
|
||||
}
|
||||
|
||||
fn fan_defaults (socket: &mut TcpSocket, fan_ctrl: &mut FanCtrl) -> Result<Handler, Error> {
|
||||
fan_ctrl.restore_defaults();
|
||||
send_line(socket, b"{}");
|
||||
Ok(Handler::Handled)
|
||||
}
|
||||
|
||||
pub fn handle_command (command: Command, socket: &mut TcpSocket, channels: &mut Channels, session: &Session, leds: &mut Leds, store: &mut FlashStore, ipv4_config: &mut Ipv4Config, fan_ctrl: &mut FanCtrl) -> Result<Self, Error> {
|
||||
match command {
|
||||
Command::Quit => Ok(Handler::CloseSocket),
|
||||
Command::Reporting(_reporting) => Handler::reporting(socket),
|
||||
|
|
@ -391,7 +401,9 @@ impl Handler {
|
|||
Command::Ipv4(config) => Handler::set_ipv4(socket, store, config),
|
||||
Command::Reset => Handler::reset(channels),
|
||||
Command::Dfu => Handler::dfu(channels),
|
||||
Command::Fan {fan_pwm} => Handler::fan(socket, channels, fan_pwm, tacho_value)
|
||||
Command::Fan {fan_pwm} => Handler::fan(socket, fan_pwm, fan_ctrl),
|
||||
Command::FanCoeff { k_a, k_b, k_c } => Handler::fan_coeff(socket, fan_ctrl, k_a, k_b, k_c),
|
||||
Command::FanDefaults => Handler::fan_defaults(socket, fan_ctrl),
|
||||
}
|
||||
}
|
||||
}
|
||||
|
|
@ -1,16 +1,7 @@
|
|||
use core::fmt;
|
||||
use core::num::ParseIntError;
|
||||
use core::str::{from_utf8, Utf8Error};
|
||||
use nom::{
|
||||
IResult,
|
||||
branch::alt,
|
||||
bytes::complete::{is_a, tag, take_while1},
|
||||
character::{is_digit, complete::{char, one_of}},
|
||||
combinator::{complete, map, opt, value},
|
||||
sequence::preceded,
|
||||
multi::{fold_many0, fold_many1},
|
||||
error::ErrorKind,
|
||||
};
|
||||
use nom::{IResult, branch::alt, bytes::complete::{is_a, tag, take_while1}, character::{is_digit, complete::{char, one_of}}, combinator::{complete, map, opt, value}, sequence::preceded, multi::{fold_many0, fold_many1}, error::ErrorKind, Needed};
|
||||
use num_traits::{Num, ParseFloatError};
|
||||
use serde::{Serialize, Deserialize};
|
||||
|
||||
|
|
@ -127,7 +118,6 @@ pub enum PwmPin {
|
|||
MaxIPos,
|
||||
MaxINeg,
|
||||
MaxV,
|
||||
Fan
|
||||
}
|
||||
|
||||
#[derive(Debug, Clone, PartialEq, Serialize, Deserialize)]
|
||||
|
|
@ -181,7 +171,13 @@ pub enum Command {
|
|||
Dfu,
|
||||
Fan {
|
||||
fan_pwm: Option<u32>
|
||||
}
|
||||
},
|
||||
FanCoeff {
|
||||
k_a: f64,
|
||||
k_b: f64,
|
||||
k_c: f64,
|
||||
},
|
||||
FanDefaults,
|
||||
}
|
||||
|
||||
fn end(input: &[u8]) -> IResult<&[u8], ()> {
|
||||
|
|
@ -540,6 +536,33 @@ fn fan(input: &[u8]) -> IResult<&[u8], Result<Command, Error>> {
|
|||
Ok((input, result))
|
||||
}
|
||||
|
||||
fn fan_coeff(input: &[u8]) -> IResult<&[u8], Result<Command, Error>> {
|
||||
let (input, _) = tag("fcurve")(input)?;
|
||||
let (input, coeffs) = alt((
|
||||
|input| {
|
||||
let (input, _) = whitespace(input)?;
|
||||
let (input, k_a) = float(input)?;
|
||||
let (input, _) = whitespace(input)?;
|
||||
let (input, k_b) = float(input)?;
|
||||
let (input, _) = whitespace(input)?;
|
||||
let (input, k_c) = float(input)?;
|
||||
let (input, _) = end(input)?;
|
||||
if k_a.is_ok() && k_b.is_ok() && k_c.is_ok() {
|
||||
Ok((input, Some((k_a.unwrap(), k_b.unwrap(), k_c.unwrap()))))
|
||||
} else {
|
||||
Err(nom::Err::Incomplete(Needed::Size(3)))
|
||||
}
|
||||
},
|
||||
value(None, end)
|
||||
))(input)?;
|
||||
|
||||
let result = match coeffs {
|
||||
Some(coeffs) => Ok(Command::FanCoeff { k_a: coeffs.0, k_b: coeffs.1, k_c: coeffs.2 }),
|
||||
None => Err(Error::ParseFloat)
|
||||
};
|
||||
Ok((input, result))
|
||||
}
|
||||
|
||||
fn command(input: &[u8]) -> IResult<&[u8], Result<Command, Error>> {
|
||||
alt((value(Ok(Command::Quit), tag("quit")),
|
||||
load,
|
||||
|
|
@ -553,7 +576,9 @@ fn command(input: &[u8]) -> IResult<&[u8], Result<Command, Error>> {
|
|||
steinhart_hart,
|
||||
postfilter,
|
||||
value(Ok(Command::Dfu), tag("dfu")),
|
||||
value(Ok(Command::FanDefaults), tag("fan-restore")),
|
||||
fan,
|
||||
fan_coeff,
|
||||
))(input)
|
||||
}
|
||||
|
||||
|
|
|
|||
|
|
@ -0,0 +1,218 @@
|
|||
use core::{cmp::max_by};
|
||||
use serde::Serialize;
|
||||
use stm32f4xx_hal::{
|
||||
pwm::{self, PwmChannels},
|
||||
pac::TIM8,
|
||||
gpio::{
|
||||
Floating, Input, ExtiPin,
|
||||
gpioc::PC8, Edge,
|
||||
},
|
||||
stm32::EXTI,
|
||||
syscfg::{SysCfg},
|
||||
};
|
||||
use smoltcp::time::Instant;
|
||||
|
||||
use crate::{
|
||||
pins::HWRevPins,
|
||||
channels::{Channels, JsonBuffer},
|
||||
timer
|
||||
};
|
||||
|
||||
pub type FanPin = PwmChannels<TIM8, pwm::C4>;
|
||||
pub type TachoPin = PC8<Input<Floating>>;
|
||||
|
||||
const MAX_TEC_I: f64 = 3.0;
|
||||
// as stated in the schematics
|
||||
const MAX_FAN_PWM: f64 = 100.0;
|
||||
const MIN_FAN_PWM: f64 = 1.0;
|
||||
const TACHO_MEASURE_MS: i64 = 2500;
|
||||
const DEFAULT_K_A: f64 = 1.0;
|
||||
const DEFAULT_K_B: f64 = 0.0;
|
||||
const DEFAULT_K_C: f64 = 0.0;
|
||||
|
||||
#[derive(Serialize, Copy, Clone)]
|
||||
pub struct HWRev {
|
||||
pub major: u8,
|
||||
pub minor: u8,
|
||||
}
|
||||
|
||||
struct TachoCtrl {
|
||||
tacho: TachoPin,
|
||||
tacho_cnt: u32,
|
||||
tacho_value: Option<u32>,
|
||||
prev_epoch: i64,
|
||||
}
|
||||
|
||||
pub struct FanCtrl<'a> {
|
||||
fan: FanPin,
|
||||
tacho: TachoCtrl,
|
||||
fan_auto: bool,
|
||||
available: bool,
|
||||
k_a: f64,
|
||||
k_b: f64,
|
||||
k_c: f64,
|
||||
channels: &'a mut Channels,
|
||||
}
|
||||
|
||||
impl<'a> FanCtrl<'a> {
|
||||
pub fn new(mut fan: FanPin, tacho: TachoPin, channels: &'a mut Channels, exti: &mut EXTI, syscfg: &mut SysCfg) -> Self {
|
||||
let available = channels.hwrev.fan_available();
|
||||
|
||||
let mut tacho_ctrl = TachoCtrl::new(tacho);
|
||||
if available {
|
||||
fan.set_duty(0);
|
||||
fan.enable();
|
||||
tacho_ctrl.init(exti, syscfg);
|
||||
}
|
||||
|
||||
FanCtrl {
|
||||
fan,
|
||||
tacho: tacho_ctrl,
|
||||
available,
|
||||
fan_auto: true,
|
||||
k_a: DEFAULT_K_A,
|
||||
k_b: DEFAULT_K_B,
|
||||
k_c: DEFAULT_K_C,
|
||||
channels,
|
||||
}
|
||||
}
|
||||
|
||||
pub fn cycle(&mut self) {
|
||||
if self.available {
|
||||
self.tacho.cycle();
|
||||
}
|
||||
self.adjust_speed();
|
||||
}
|
||||
|
||||
pub fn summary(&mut self) -> Result<JsonBuffer, serde_json_core::ser::Error> {
|
||||
if self.available {
|
||||
let summary = FanSummary {
|
||||
fan_pwm: self.get_pwm(),
|
||||
tacho: self.tacho.get(),
|
||||
abs_max_tec_i: self.channels.current_abs_max_tec_i(),
|
||||
auto_mode: self.fan_auto,
|
||||
k_a: self.k_a,
|
||||
k_b: self.k_b,
|
||||
k_c: self.k_c,
|
||||
};
|
||||
serde_json_core::to_vec(&summary)
|
||||
} else {
|
||||
let summary: Option<()> = None;
|
||||
serde_json_core::to_vec(&summary)
|
||||
}
|
||||
}
|
||||
|
||||
pub fn adjust_speed(&mut self) {
|
||||
if self.fan_auto && self.available {
|
||||
let scaled_current = self.channels.current_abs_max_tec_i() / MAX_TEC_I;
|
||||
// do not limit upper bound, as it will be limited in the set_pwm()
|
||||
let pwm = max_by(MAX_FAN_PWM * (scaled_current * (scaled_current * self.k_a + self.k_b) + self.k_c),
|
||||
MIN_FAN_PWM,
|
||||
|a, b| a.partial_cmp(b).unwrap_or(core::cmp::Ordering::Equal)) as u32;
|
||||
self.set_pwm(pwm);
|
||||
}
|
||||
}
|
||||
|
||||
#[inline]
|
||||
pub fn set_auto_mode(&mut self, fan_auto: bool) {
|
||||
self.fan_auto = fan_auto;
|
||||
}
|
||||
|
||||
#[inline]
|
||||
pub fn set_coefficients(&mut self, k_a: f64, k_b: f64, k_c: f64) {
|
||||
self.k_a = k_a;
|
||||
self.k_b = k_b;
|
||||
self.k_c = k_c;
|
||||
}
|
||||
|
||||
#[inline]
|
||||
pub fn restore_defaults(&mut self) {
|
||||
self.set_auto_mode(true);
|
||||
self.set_coefficients(DEFAULT_K_A, DEFAULT_K_B, DEFAULT_K_C);
|
||||
}
|
||||
|
||||
pub fn set_pwm(&mut self, fan_pwm: u32) -> f64 {
|
||||
let duty = fan_pwm as f64 / MAX_FAN_PWM;
|
||||
let max = self.fan.get_max_duty();
|
||||
let value = ((duty * (max as f64)) as u16).min(max);
|
||||
self.fan.set_duty(value);
|
||||
value as f64 / (max as f64)
|
||||
}
|
||||
|
||||
fn get_pwm(&self) -> u32 {
|
||||
let duty = self.fan.get_duty();
|
||||
let max = self.fan.get_max_duty();
|
||||
((duty as f64 / (max as f64)) * MAX_FAN_PWM) as u32
|
||||
}
|
||||
}
|
||||
|
||||
impl TachoCtrl {
|
||||
pub fn new(tacho: TachoPin) -> Self {
|
||||
TachoCtrl {
|
||||
tacho,
|
||||
tacho_cnt: 0,
|
||||
tacho_value: None,
|
||||
prev_epoch: 0,
|
||||
}
|
||||
}
|
||||
|
||||
pub fn init(&mut self, exti: &mut EXTI, syscfg: &mut SysCfg) {
|
||||
// These lines do not cause NVIC to run the ISR,
|
||||
// since the interrupt should be unmasked in the cortex_m::peripheral::NVIC.
|
||||
// Also using interrupt-related workaround is the best
|
||||
// option for the current version of stm32f4xx-hal,
|
||||
// since tying the IC's PC8 with the PWM's PC9 to the same TIM8 is not supported,
|
||||
// and therefore would require even more weirder and unsafe hacks.
|
||||
// Also such hacks wouldn't guarantee it to be more precise.
|
||||
self.tacho.make_interrupt_source(syscfg);
|
||||
self.tacho.trigger_on_edge(exti, Edge::Rising);
|
||||
self.tacho.enable_interrupt(exti);
|
||||
}
|
||||
|
||||
pub fn cycle(&mut self) {
|
||||
let tacho_input = self.tacho.check_interrupt();
|
||||
if tacho_input {
|
||||
self.tacho.clear_interrupt_pending_bit();
|
||||
self.tacho_cnt += 1;
|
||||
}
|
||||
|
||||
let instant = Instant::from_millis(i64::from(timer::now()));
|
||||
if instant.millis - self.prev_epoch >= TACHO_MEASURE_MS {
|
||||
self.tacho_value = Some(self.tacho_cnt);
|
||||
self.tacho_cnt = 0;
|
||||
self.prev_epoch = instant.millis;
|
||||
}
|
||||
}
|
||||
|
||||
pub fn get(&self) -> u32 {
|
||||
self.tacho_value.unwrap_or(u32::MAX)
|
||||
}
|
||||
}
|
||||
|
||||
impl HWRev {
|
||||
pub fn detect_hw_rev(hwrev_pins: &HWRevPins) -> Self {
|
||||
let (h0, h1, h2, h3) = (hwrev_pins.hwrev0.is_high(), hwrev_pins.hwrev1.is_high(),
|
||||
hwrev_pins.hwrev2.is_high(), hwrev_pins.hwrev3.is_high());
|
||||
match (h0, h1, h2, h3) {
|
||||
(true, true, true, false) => HWRev { major: 1, minor: 0 },
|
||||
(true, false, false, false) => HWRev { major: 2, minor: 0 },
|
||||
(false, true, false, false) => HWRev { major: 2, minor: 2 },
|
||||
(_, _, _, _) => HWRev { major: 0, minor: 0 }
|
||||
}
|
||||
}
|
||||
|
||||
pub fn fan_available(&self) -> bool {
|
||||
self.major == 2 && self.minor == 2
|
||||
}
|
||||
}
|
||||
|
||||
#[derive(Serialize)]
|
||||
pub struct FanSummary {
|
||||
fan_pwm: u32,
|
||||
tacho: u32,
|
||||
abs_max_tec_i: f64,
|
||||
auto_mode: bool,
|
||||
k_a: f64,
|
||||
k_b: f64,
|
||||
k_c: f64,
|
||||
}
|
||||
59
src/main.rs
59
src/main.rs
|
|
@ -10,7 +10,7 @@ use panic_abort as _;
|
|||
use panic_semihosting as _;
|
||||
|
||||
use log::{error, info, warn};
|
||||
|
||||
use core::cell::RefCell;
|
||||
use cortex_m::asm::wfi;
|
||||
use cortex_m_rt::entry;
|
||||
use stm32f4xx_hal::{
|
||||
|
|
@ -19,7 +19,6 @@ use stm32f4xx_hal::{
|
|||
stm32::{CorePeripherals, Peripherals, SCB},
|
||||
time::{U32Ext, MegaHertz},
|
||||
watchdog::IndependentWatchdog,
|
||||
gpio::{Edge, ExtiPin},
|
||||
syscfg::SysCfgExt
|
||||
};
|
||||
use smoltcp::{
|
||||
|
|
@ -56,6 +55,8 @@ mod flash_store;
|
|||
mod dfu;
|
||||
mod command_handler;
|
||||
use command_handler::Handler;
|
||||
mod fan_ctrl;
|
||||
use fan_ctrl::FanCtrl;
|
||||
|
||||
const HSE: MegaHertz = MegaHertz(8);
|
||||
#[cfg(not(feature = "semihosting"))]
|
||||
|
|
@ -120,7 +121,7 @@ fn main() -> ! {
|
|||
|
||||
timer::setup(cp.SYST, clocks);
|
||||
|
||||
let (pins, mut leds, mut eeprom, eth_pins, usb, mut tacho) = Pins::setup(
|
||||
let (pins, mut leds, mut eeprom, eth_pins, usb, fan, tacho) = Pins::setup(
|
||||
clocks, dp.TIM1, dp.TIM3, dp.TIM8,
|
||||
dp.GPIOA, dp.GPIOB, dp.GPIOC, dp.GPIOD, dp.GPIOE, dp.GPIOF, dp.GPIOG,
|
||||
dp.I2C1,
|
||||
|
|
@ -137,22 +138,22 @@ fn main() -> ! {
|
|||
|
||||
usb::State::setup(usb);
|
||||
|
||||
let mut channels = RefCell::new(Channels::new(pins));
|
||||
|
||||
let mut store = flash_store::store(dp.FLASH);
|
||||
|
||||
|
||||
let mut channels = Channels::new(pins);
|
||||
for c in 0..CHANNELS {
|
||||
match store.read_value::<ChannelConfig>(CHANNEL_CONFIG_KEY[c]) {
|
||||
Ok(Some(config)) =>
|
||||
config.apply(&mut channels, c),
|
||||
config.apply(channels.get_mut(), c),
|
||||
Ok(None) =>
|
||||
error!("flash config not found for channel {}", c),
|
||||
Err(e) =>
|
||||
error!("unable to load config {} from flash: {:?}", c, e),
|
||||
}
|
||||
}
|
||||
|
||||
let fan_available = channels.fan_available();
|
||||
// considered safe since `channels` is being mutated in a single thread,
|
||||
// while mutex would be excessive
|
||||
let mut fan_ctrl = FanCtrl::new(fan, tacho, unsafe{ &mut *channels.as_ptr() }, &mut dp.EXTI, &mut dp.SYSCFG.constrain());
|
||||
|
||||
// default net config:
|
||||
let mut ipv4_config = Ipv4Config {
|
||||
|
|
@ -174,54 +175,22 @@ fn main() -> ! {
|
|||
let hwaddr = EthernetAddress(eui48);
|
||||
info!("EEPROM MAC address: {}", hwaddr);
|
||||
|
||||
if fan_available {
|
||||
// These lines do not cause NVIC to run the ISR,
|
||||
// since the interrupt should be unmasked in the cortex_m::peripheral::NVIC.
|
||||
// Also using interrupt-related workaround is the best
|
||||
// option for the current version of stm32f4xx-hal,
|
||||
// since tying the IC's PC8 with the PWM's PC9 to the same TIM8 is not supported,
|
||||
// and therefore would require even more weirder and unsafe hacks.
|
||||
// Also such hacks wouldn't guarantee it to be more precise.
|
||||
tacho.make_interrupt_source(&mut dp.SYSCFG.constrain());
|
||||
tacho.trigger_on_edge(&mut dp.EXTI, Edge::Rising);
|
||||
tacho.enable_interrupt(&mut dp.EXTI);
|
||||
}
|
||||
|
||||
net::run(clocks, dp.ETHERNET_MAC, dp.ETHERNET_DMA, eth_pins, hwaddr, ipv4_config.clone(), |iface| {
|
||||
Server::<Session>::run(iface, |server| {
|
||||
leds.r1.off();
|
||||
let mut should_reset = false;
|
||||
|
||||
let (mut tacho_cnt, mut tacho_value) = (0u32, None);
|
||||
let mut prev_epoch: i64 = 0;
|
||||
|
||||
loop {
|
||||
let mut new_ipv4_config = None;
|
||||
let instant = Instant::from_millis(i64::from(timer::now()));
|
||||
let updated_channel = channels.poll_adc(instant);
|
||||
let updated_channel = channels.get_mut().poll_adc(instant);
|
||||
if let Some(channel) = updated_channel {
|
||||
server.for_each(|_, session| session.set_report_pending(channel.into()));
|
||||
}
|
||||
fan_ctrl.cycle();
|
||||
|
||||
let instant = Instant::from_millis(i64::from(timer::now()));
|
||||
|
||||
if fan_available {
|
||||
let tacho_input = tacho.check_interrupt();
|
||||
if tacho_input {
|
||||
tacho.clear_interrupt_pending_bit();
|
||||
tacho_cnt += 1;
|
||||
}
|
||||
|
||||
let epoch = instant.secs();
|
||||
if epoch > prev_epoch {
|
||||
tacho_value = Some(tacho_cnt);
|
||||
tacho_cnt = 0;
|
||||
prev_epoch = epoch;
|
||||
}
|
||||
}
|
||||
|
||||
channels.fan_ctrl();
|
||||
|
||||
cortex_m::interrupt::free(net::clear_pending);
|
||||
server.poll(instant)
|
||||
.unwrap_or_else(|e| {
|
||||
|
|
@ -244,7 +213,7 @@ fn main() -> ! {
|
|||
// Do nothing and feed more data to the line reader in the next loop cycle.
|
||||
Ok(SessionInput::Nothing) => {}
|
||||
Ok(SessionInput::Command(command)) => {
|
||||
match Handler::handle_command(command, &mut socket, &mut channels, session, &mut leds, &mut store, &mut ipv4_config, tacho_value) {
|
||||
match Handler::handle_command(command, &mut socket, channels.get_mut(), session, &mut leds, &mut store, &mut ipv4_config, &mut fan_ctrl) {
|
||||
Ok(Handler::NewIPV4(ip)) => new_ipv4_config = Some(ip),
|
||||
Ok(Handler::Handled) => {},
|
||||
Ok(Handler::CloseSocket) => socket.close(),
|
||||
|
|
@ -261,7 +230,7 @@ fn main() -> ! {
|
|||
}
|
||||
} else if socket.can_send() {
|
||||
if let Some(channel) = session.is_report_pending() {
|
||||
match channels.reports_json() {
|
||||
match channels.get_mut().reports_json() {
|
||||
Ok(buf) => {
|
||||
send_line(&mut socket, &buf[..]);
|
||||
session.mark_report_sent(channel);
|
||||
|
|
|
|||
33
src/pins.rs
33
src/pins.rs
|
|
@ -26,15 +26,18 @@ use stm32f4xx_hal::{
|
|||
TIM1, TIM3, TIM8
|
||||
},
|
||||
timer::Timer,
|
||||
time::U32Ext,
|
||||
time::{U32Ext, KiloHertz},
|
||||
};
|
||||
use eeprom24x::{self, Eeprom24x};
|
||||
use stm32_eth::EthPins;
|
||||
use crate::{
|
||||
channel::{Channel0, Channel1},
|
||||
leds::Leds,
|
||||
fan_ctrl::{TachoPin, FanPin}
|
||||
};
|
||||
|
||||
const PWM_FREQ: KiloHertz = KiloHertz(20u32);
|
||||
|
||||
pub type Eeprom = Eeprom24x<
|
||||
I2c<I2C1, (
|
||||
PB8<AlternateOD<{ stm32f4xx_hal::gpio::AF4 }>>,
|
||||
|
|
@ -128,7 +131,7 @@ impl Pins {
|
|||
spi2: SPI2, spi4: SPI4, spi5: SPI5,
|
||||
adc1: ADC1,
|
||||
otg_fs_global: OTG_FS_GLOBAL, otg_fs_device: OTG_FS_DEVICE, otg_fs_pwrclk: OTG_FS_PWRCLK,
|
||||
) -> (Self, Leds, Eeprom, EthernetPins, USB, PC8<Input<Floating>>) {
|
||||
) -> (Self, Leds, Eeprom, EthernetPins, USB, FanPin, TachoPin) {
|
||||
let gpioa = gpioa.split();
|
||||
let gpiob = gpiob.split();
|
||||
let gpioc = gpioc.split();
|
||||
|
|
@ -143,10 +146,10 @@ impl Pins {
|
|||
let pins_adc = Adc::adc1(adc1, true, Default::default());
|
||||
|
||||
let pwm = PwmPins::setup(
|
||||
clocks, tim1, tim3, tim8,
|
||||
clocks, tim1, tim3,
|
||||
gpioc.pc6, gpioc.pc7,
|
||||
gpioe.pe9, gpioe.pe11,
|
||||
gpioe.pe13, gpioe.pe14, gpioc.pc9
|
||||
gpioe.pe13, gpioe.pe14
|
||||
);
|
||||
|
||||
let (dac0_spi, dac0_sync) = Self::setup_dac0(
|
||||
|
|
@ -225,7 +228,9 @@ impl Pins {
|
|||
hclk: clocks.hclk(),
|
||||
};
|
||||
|
||||
(pins, leds, eeprom, eth_pins, usb, gpioc.pc8)
|
||||
let fan = Timer::new(tim8, &clocks).pwm(gpioc.pc9.into_alternate(), 20u32.khz());
|
||||
|
||||
(pins, leds, eeprom, eth_pins, usb, fan, gpioc.pc8)
|
||||
}
|
||||
|
||||
/// Configure the GPIO pins for SPI operation, and initialize SPI
|
||||
|
|
@ -293,24 +298,20 @@ pub struct PwmPins {
|
|||
pub max_i_pos1: PwmChannels<TIM1, pwm::C2>,
|
||||
pub max_i_neg0: PwmChannels<TIM1, pwm::C3>,
|
||||
pub max_i_neg1: PwmChannels<TIM1, pwm::C4>,
|
||||
pub fan: PwmChannels<TIM8, pwm::C4>,
|
||||
}
|
||||
|
||||
impl PwmPins {
|
||||
fn setup<M1, M2, M3, M4, M5, M6, M7>(
|
||||
fn setup<M1, M2, M3, M4, M5, M6>(
|
||||
clocks: Clocks,
|
||||
tim1: TIM1,
|
||||
tim3: TIM3,
|
||||
tim8: TIM8,
|
||||
max_v0: PC6<M1>,
|
||||
max_v1: PC7<M2>,
|
||||
max_i_pos0: PE9<M3>,
|
||||
max_i_pos1: PE11<M4>,
|
||||
max_i_neg0: PE13<M5>,
|
||||
max_i_neg1: PE14<M6>,
|
||||
fan: PC9<M7>,
|
||||
) -> PwmPins {
|
||||
let freq = 20u32.khz();
|
||||
|
||||
fn init_pwm_pin<P: hal::PwmPin<Duty=u16>>(pin: &mut P) {
|
||||
pin.set_duty(0);
|
||||
|
|
@ -320,14 +321,11 @@ impl PwmPins {
|
|||
max_v0.into_alternate(),
|
||||
max_v1.into_alternate(),
|
||||
);
|
||||
//let (mut max_v0, mut max_v1) = pwm::tim3(tim3, channels, clocks, freq);
|
||||
let (mut max_v0, mut max_v1) = Timer::new(tim3, &clocks).pwm(channels, freq);
|
||||
//let (mut max_v0, mut max_v1) = pwm::tim3(tim3, channels, clocks, PWM_FREQ);
|
||||
let (mut max_v0, mut max_v1) = Timer::new(tim3, &clocks).pwm(channels, PWM_FREQ);
|
||||
init_pwm_pin(&mut max_v0);
|
||||
init_pwm_pin(&mut max_v1);
|
||||
|
||||
let mut fan = Timer::new(tim8, &clocks).pwm(fan.into_alternate(), freq);
|
||||
init_pwm_pin(&mut fan);
|
||||
|
||||
let channels = (
|
||||
max_i_pos0.into_alternate(),
|
||||
max_i_pos1.into_alternate(),
|
||||
|
|
@ -335,7 +333,7 @@ impl PwmPins {
|
|||
max_i_neg1.into_alternate(),
|
||||
);
|
||||
let (mut max_i_pos0, mut max_i_pos1, mut max_i_neg0, mut max_i_neg1) =
|
||||
Timer::new(tim1, &clocks).pwm(channels, freq);
|
||||
Timer::new(tim1, &clocks).pwm(channels, PWM_FREQ);
|
||||
init_pwm_pin(&mut max_i_pos0);
|
||||
init_pwm_pin(&mut max_i_neg0);
|
||||
init_pwm_pin(&mut max_i_pos1);
|
||||
|
|
@ -344,8 +342,7 @@ impl PwmPins {
|
|||
PwmPins {
|
||||
max_v0, max_v1,
|
||||
max_i_pos0, max_i_pos1,
|
||||
max_i_neg0, max_i_neg1,
|
||||
fan
|
||||
max_i_neg0, max_i_neg1
|
||||
}
|
||||
}
|
||||
}
|
||||
|
|
|
|||
Loading…
Reference in New Issue