All of the hardware works proof of concept wise
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@ -4,18 +4,19 @@ edition = "2018"
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readme = "README.md"
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name = "reflow-firmware"
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version = "0.1.0"
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default-features = false
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[dependencies]
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cortex-m = "0.6"
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cortex-m-rt = "0.6"
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stm32f1xx-hal = { version = "0.6.1", features = ["stm32f103", "rt"] }
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panic-semihosting = "0.5"
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embedded-hal = "0.2.3"
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rtt-target = {version = "0.2.2", features = ["cortex-m"]}
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st7735-lcd = { git = "https://github.com/LongHairedHacker/st7735-lcd-rs.git", branch = "fix-short-rectangles" }
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st7735-lcd = { git = "https://github.com/LongHairedHacker/st7735-lcd-rs.git", branch = "release-display-interface"}
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embedded-graphics = "0.6.2"
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tinybmp = {version ="0.2.3", features = ["graphics"]}
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profont = "0.4.0"
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arrayvec = {version = "0.5.1", default-features = false}
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# this lets you use `cargo fix`!
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[[bin]]
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139
src/main.rs
139
src/main.rs
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@ -2,26 +2,31 @@
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#![no_std]
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#![no_main]
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extern crate panic_semihosting;
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use cortex_m_rt::entry;
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use embedded_graphics::image::Image;
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use embedded_graphics::pixelcolor::Rgb565;
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use embedded_graphics::prelude::*;
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use embedded_graphics::primitives::rectangle::Rectangle;
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use embedded_graphics::style::PrimitiveStyleBuilder;
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use embedded_hal::digital::v2::OutputPin;
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use arrayvec::ArrayString;
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use core::fmt::Write;
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use cortex_m::asm;
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use cortex_m_rt::{entry, exception};
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use embedded_graphics::{
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drawable::Drawable, fonts::Text, image::Image, pixelcolor::BinaryColor, pixelcolor::Rgb565,
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prelude::*, primitives::rectangle::Rectangle, style::PrimitiveStyleBuilder,
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style::TextStyleBuilder,
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};
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use embedded_hal::digital::v2::{InputPin, OutputPin};
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use profont::{ProFont12Point, ProFont9Point};
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use rtt_target::{rprintln, rtt_init_print};
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use st7735_lcd::Orientation;
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use stm32f1xx_hal::{
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delay::Delay,
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pac,
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prelude::*,
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qei::QeiOptions,
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spi::{Mode, Phase, Polarity, Spi},
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timer::Timer,
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};
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use tinybmp::Bmp;
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mod max6675;
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#[entry]
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fn main() -> ! {
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rtt_init_print!();
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@ -48,6 +53,7 @@ fn main() -> ! {
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// Acquire the GPIOC peripheral
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let mut gpioc = dp.GPIOC.split(&mut rcc.apb2);
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let mut gpioa = dp.GPIOA.split(&mut rcc.apb2);
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// Configure gpio C pin 13 as a push-pull output. The `crh` register is passed to the function
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// in order to configure the port. For pins 0-7, crl should be passed instead.
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@ -55,24 +61,32 @@ fn main() -> ! {
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let mut delay = Delay::new(cp.SYST, clocks);
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let gpiob = dp.GPIOB.split(&mut rcc.apb2);
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let mut afio = dp.AFIO.constrain(&mut rcc.apb2);
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let mut gpioa = dp.GPIOA.split(&mut rcc.apb2);
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let (_, _, pb4) = afio.mapr.disable_jtag(gpioa.pa15, gpiob.pb3, gpiob.pb4);
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let qei = Timer::tim3(dp.TIM3, &clocks, &mut rcc.apb1).qei(
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(pb4, gpiob.pb5),
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&mut afio.mapr,
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QeiOptions::default(),
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);
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// SPI1
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let sck = gpioa.pa5.into_alternate_push_pull(&mut gpioa.crl);
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let miso = gpioa.pa6;
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let mosi = gpioa.pa7.into_alternate_push_pull(&mut gpioa.crl);
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let disp_cs = gpioa.pa0.into_push_pull_output(&mut gpioa.crl);
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let mut disp_cs = gpioa.pa0.into_push_pull_output(&mut gpioa.crl);
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let mut max_cs = gpioa.pa9.into_push_pull_output(&mut gpioa.crh);
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let rst = gpioa.pa1.into_push_pull_output(&mut gpioa.crl);
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let dc = gpioa.pa4.into_push_pull_output(&mut gpioa.crl);
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let mut rst = gpioa.pa1.into_push_pull_output(&mut gpioa.crl);
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let mut dc = gpioa.pa4.into_push_pull_output(&mut gpioa.crl);
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let mut disp_led = gpioa.pa8.into_push_pull_output(&mut gpioa.crh);
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disp_led.set_high();
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disp_led.set_high().unwrap();
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let spi = Spi::spi1(
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let mut spi = Spi::spi1(
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dp.SPI1,
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(sck, miso, mosi),
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&mut afio.mapr,
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@ -86,8 +100,7 @@ fn main() -> ! {
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);
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let mut disp = st7735_lcd::ST7735::new(spi, dc, rst, true, false, 160, 128);
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disp.hard_reset(&mut delay).unwrap();
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disp_cs.set_low().unwrap();
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disp.init(&mut delay).unwrap();
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disp.set_orientation(&Orientation::LandscapeSwapped)
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.unwrap();
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@ -100,44 +113,66 @@ fn main() -> ! {
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.draw(&mut disp)
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.unwrap();
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/*
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let style_red = PrimitiveStyleBuilder::new().fill_color(Rgb565::RED).build();
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let style_green = PrimitiveStyleBuilder::new()
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.fill_color(Rgb565::GREEN)
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.build();
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let style_blue = PrimitiveStyleBuilder::new()
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.fill_color(Rgb565::BLUE)
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.build();
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Rectangle::new(Point::new(0, 0), Point::new(10, 20))
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.into_styled(style_red)
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.draw(&mut disp)
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.unwrap();
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disp.set_pixel(10, 20, 0x07E0);
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Rectangle::new(Point::new(55, 0), Point::new(105, 128))
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.into_styled(style_green)
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.draw(&mut disp)
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.unwrap();
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Rectangle::new(Point::new(110, 0), Point::new(159, 128))
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.into_styled(style_blue)
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.draw(&mut disp)
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.unwrap();
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*/
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let bmp = Bmp::from_slice(include_bytes!("logo.bmp")).unwrap();
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let image = Image::new(&bmp, Point::new(16, 0));
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image.draw(&mut disp).unwrap();
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// Blink using the delay function
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let (_spi, _dc, _rst) = disp.release();
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spi = _spi;
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dc = _dc;
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rst = _rst;
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disp_cs.set_high().unwrap();
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let text_lager = TextStyleBuilder::new(ProFont12Point)
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.text_color(Rgb565::WHITE)
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.build();
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loop {
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rprintln!("blink");
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led.set_high().unwrap();
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delay.delay_ms(1000u16);
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rprintln!("blonk");
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led.set_low().unwrap();
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delay.delay_ms(1000u16);
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let temp = max6675::read(&mut spi, &mut max_cs).unwrap();
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rprintln!("T: {}", temp);
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// Create a fixed buffer of length 12
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let mut buf = ArrayString::<[_; 10]>::new();
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// Output `Value: 12.35`
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write!(&mut buf, "T: {}", qei.count() / 4).expect("Failed to write to buffer");
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disp_cs.set_low().unwrap();
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let mut disp = st7735_lcd::ST7735::new(spi, dc, rst, true, false, 160, 128);
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Rectangle::new(Point::new(0, 100), Point::new(160, 128))
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.into_styled(style_black)
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.draw(&mut disp)
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.unwrap();
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Text::new(&buf, Point::new(60, 100))
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.into_styled(text_lager)
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.draw(&mut disp)
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.unwrap();
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let (_spi, _dc, _rst) = disp.release();
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spi = _spi;
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dc = _dc;
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rst = _rst;
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disp_cs.set_high().unwrap();
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delay.delay_ms(250u16);
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}
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}
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#[exception]
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fn PendSV() {
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rprintln!("PendSV");
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panic!()
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}
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#[panic_handler]
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fn panic(info: &core::panic::PanicInfo) -> ! {
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rprintln!("{}", info);
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exit()
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}
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fn exit() -> ! {
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loop {
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asm::bkpt() // halt = exit probe-run
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}
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}
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@ -0,0 +1,26 @@
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use embedded_hal::blocking::spi;
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use embedded_hal::digital::v2::OutputPin;
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pub fn read<SPI, NSS>(spi: &mut SPI, nss_pin: &mut NSS) -> Result<f32, &'static str>
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where
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SPI: spi::Transfer<u8>,
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NSS: OutputPin,
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{
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let mut buffer = [0u8, 0u8];
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nss_pin.set_low();
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let res = spi.transfer(&mut buffer);
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nss_pin.set_high();
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let raw_result = match res {
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Ok(value) => (value[0] as u16) << 8 | (value[1] as u16),
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Err(_) => return Err("SPI transfer failed"),
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};
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if raw_result & (1 << 2) != 0 {
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Err("MAX6675: Termocouple measures open")
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} else {
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let result = ((raw_result >> 3) as f32) * 0.25;
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Ok(result)
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}
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}
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