179 lines
5.0 KiB
Rust
179 lines
5.0 KiB
Rust
#![deny(unsafe_code)]
|
|
#![no_std]
|
|
#![no_main]
|
|
|
|
use arrayvec::ArrayString;
|
|
use core::fmt::Write;
|
|
use cortex_m::asm;
|
|
use cortex_m_rt::{entry, exception};
|
|
use embedded_graphics::{
|
|
drawable::Drawable, fonts::Text, image::Image, pixelcolor::BinaryColor, pixelcolor::Rgb565,
|
|
prelude::*, primitives::rectangle::Rectangle, style::PrimitiveStyleBuilder,
|
|
style::TextStyleBuilder,
|
|
};
|
|
use embedded_hal::digital::v2::{InputPin, OutputPin};
|
|
use profont::{ProFont12Point, ProFont9Point};
|
|
use rtt_target::{rprintln, rtt_init_print};
|
|
use st7735_lcd::Orientation;
|
|
use stm32f1xx_hal::{
|
|
delay::Delay,
|
|
pac,
|
|
prelude::*,
|
|
qei::QeiOptions,
|
|
spi::{Mode, Phase, Polarity, Spi},
|
|
timer::Timer,
|
|
};
|
|
use tinybmp::Bmp;
|
|
|
|
mod max6675;
|
|
|
|
#[entry]
|
|
fn main() -> ! {
|
|
rtt_init_print!();
|
|
|
|
// Get access to the core peripherals from the cortex-m crate
|
|
let cp = cortex_m::Peripherals::take().unwrap();
|
|
// Get access to the device specific peripherals from the peripheral access crate
|
|
let dp = pac::Peripherals::take().unwrap();
|
|
|
|
// Take ownership over the raw flash and rcc devices and convert them into the corresponding
|
|
// HAL structs
|
|
let mut flash = dp.FLASH.constrain();
|
|
|
|
let mut rcc = dp.RCC.constrain();
|
|
|
|
// Freeze the configuration of all the clocks in the system and store the frozen frequencies in
|
|
// `clocks`
|
|
let clocks = rcc
|
|
.cfgr
|
|
.use_hse(8.mhz())
|
|
.sysclk(72.mhz())
|
|
.pclk1(36.mhz())
|
|
.freeze(&mut flash.acr);
|
|
|
|
// Acquire the GPIOC peripheral
|
|
let mut gpioc = dp.GPIOC.split(&mut rcc.apb2);
|
|
let mut gpioa = dp.GPIOA.split(&mut rcc.apb2);
|
|
|
|
// Configure gpio C pin 13 as a push-pull output. The `crh` register is passed to the function
|
|
// in order to configure the port. For pins 0-7, crl should be passed instead.
|
|
let mut led = gpioc.pc13.into_push_pull_output(&mut gpioc.crh);
|
|
|
|
let mut delay = Delay::new(cp.SYST, clocks);
|
|
|
|
let gpiob = dp.GPIOB.split(&mut rcc.apb2);
|
|
let mut afio = dp.AFIO.constrain(&mut rcc.apb2);
|
|
|
|
let (_, _, pb4) = afio.mapr.disable_jtag(gpioa.pa15, gpiob.pb3, gpiob.pb4);
|
|
|
|
let qei = Timer::tim3(dp.TIM3, &clocks, &mut rcc.apb1).qei(
|
|
(pb4, gpiob.pb5),
|
|
&mut afio.mapr,
|
|
QeiOptions::default(),
|
|
);
|
|
|
|
// SPI1
|
|
let sck = gpioa.pa5.into_alternate_push_pull(&mut gpioa.crl);
|
|
let miso = gpioa.pa6;
|
|
let mosi = gpioa.pa7.into_alternate_push_pull(&mut gpioa.crl);
|
|
|
|
let mut disp_cs = gpioa.pa0.into_push_pull_output(&mut gpioa.crl);
|
|
let mut max_cs = gpioa.pa9.into_push_pull_output(&mut gpioa.crh);
|
|
|
|
let mut rst = gpioa.pa1.into_push_pull_output(&mut gpioa.crl);
|
|
let mut dc = gpioa.pa4.into_push_pull_output(&mut gpioa.crl);
|
|
let mut disp_led = gpioa.pa8.into_push_pull_output(&mut gpioa.crh);
|
|
|
|
disp_led.set_high().unwrap();
|
|
|
|
let mut spi = Spi::spi1(
|
|
dp.SPI1,
|
|
(sck, miso, mosi),
|
|
&mut afio.mapr,
|
|
Mode {
|
|
polarity: Polarity::IdleLow,
|
|
phase: Phase::CaptureOnFirstTransition,
|
|
},
|
|
16.mhz(),
|
|
clocks,
|
|
&mut rcc.apb2,
|
|
);
|
|
|
|
let mut disp = st7735_lcd::ST7735::new(spi, dc, rst, true, false, 160, 128);
|
|
disp_cs.set_low().unwrap();
|
|
disp.init(&mut delay).unwrap();
|
|
disp.set_orientation(&Orientation::LandscapeSwapped)
|
|
.unwrap();
|
|
|
|
let style_black = PrimitiveStyleBuilder::new()
|
|
.fill_color(Rgb565::BLACK)
|
|
.build();
|
|
Rectangle::new(Point::new(0, 0), Point::new(160, 128))
|
|
.into_styled(style_black)
|
|
.draw(&mut disp)
|
|
.unwrap();
|
|
|
|
let bmp = Bmp::from_slice(include_bytes!("logo.bmp")).unwrap();
|
|
let image = Image::new(&bmp, Point::new(16, 0));
|
|
image.draw(&mut disp).unwrap();
|
|
|
|
let (_spi, _dc, _rst) = disp.release();
|
|
spi = _spi;
|
|
dc = _dc;
|
|
rst = _rst;
|
|
disp_cs.set_high().unwrap();
|
|
|
|
let text_lager = TextStyleBuilder::new(ProFont12Point)
|
|
.text_color(Rgb565::WHITE)
|
|
.build();
|
|
|
|
loop {
|
|
let temp = max6675::read(&mut spi, &mut max_cs).unwrap();
|
|
rprintln!("T: {}", temp);
|
|
|
|
// Create a fixed buffer of length 12
|
|
let mut buf = ArrayString::<[_; 10]>::new();
|
|
// Output `Value: 12.35`
|
|
write!(&mut buf, "T: {}", qei.count() / 4).expect("Failed to write to buffer");
|
|
|
|
disp_cs.set_low().unwrap();
|
|
let mut disp = st7735_lcd::ST7735::new(spi, dc, rst, true, false, 160, 128);
|
|
|
|
Rectangle::new(Point::new(0, 100), Point::new(160, 128))
|
|
.into_styled(style_black)
|
|
.draw(&mut disp)
|
|
.unwrap();
|
|
|
|
Text::new(&buf, Point::new(60, 100))
|
|
.into_styled(text_lager)
|
|
.draw(&mut disp)
|
|
.unwrap();
|
|
|
|
let (_spi, _dc, _rst) = disp.release();
|
|
spi = _spi;
|
|
dc = _dc;
|
|
rst = _rst;
|
|
disp_cs.set_high().unwrap();
|
|
|
|
delay.delay_ms(250u16);
|
|
}
|
|
}
|
|
|
|
#[exception]
|
|
fn PendSV() {
|
|
rprintln!("PendSV");
|
|
panic!()
|
|
}
|
|
|
|
#[panic_handler]
|
|
fn panic(info: &core::panic::PanicInfo) -> ! {
|
|
rprintln!("{}", info);
|
|
exit()
|
|
}
|
|
|
|
fn exit() -> ! {
|
|
loop {
|
|
asm::bkpt() // halt = exit probe-run
|
|
}
|
|
}
|