added temp reading.

This commit is contained in:
Gabe Venberg 2023-12-02 21:50:12 -06:00
parent 188fb05b25
commit c1e16006f3

View file

@ -7,7 +7,10 @@
)]
mod app {
extern crate alloc;
use alloc::{format, string::{self, String, ToString}};
use alloc::{
format,
string::{self, String, ToString},
};
use core::fmt::Write;
use cortex_m::delay::Delay;
use defmt_rtt as _;
@ -89,7 +92,7 @@ mod app {
#[monotonic(binds = TIMER_IRQ_0, default = true)]
type Rp2040Mono = Rp2040Monotonic;
struct Thermocouple {
pub struct Thermocouple {
cs: Pin<Gpio5, FunctionSio<SioOutput>, PullDown>,
spi: ThermocoupleSpi,
}
@ -107,6 +110,7 @@ mod app {
struct Shared {
delay: Delay,
recent_temp: f32,
uart: Uart,
}
#[local]
@ -215,14 +219,16 @@ mod app {
let mono = Rp2040Mono::new(ctx.device.TIMER);
// write_lcd(&mut lcd, &mut delay, "Starting");
display::spawn(ToString::to_string(&"Starting")).unwrap();
heartbeat::spawn().unwrap();
second_heartbeat::spawn().unwrap();
(
Shared { delay, recent_temp: 0.0 },
Shared {
delay,
recent_temp: 0.0,
uart,
},
Local {
led: led_pin,
thermocouple,
@ -249,10 +255,21 @@ mod app {
// }
}
fn write_lcd(lcd: &mut Lcd, delay: &mut Delay, string: &str) {
lcd.reset(delay).unwrap();
lcd.clear(delay).unwrap();
lcd.write_str(string, delay).unwrap();
#[task(local = [thermocouple], shared = [recent_temp, uart])]
fn read_temp(mut ctx: read_temp::Context) {
match ctx.local.thermocouple.read_temp() {
Ok(v) => {
ctx.shared.recent_temp.lock(|t| *t = v);
ctx.shared
.uart
.lock(|u| writeln!(u, "{:02.2} C", v).unwrap());
let str = format!("{:02.2} C", v);
display::spawn(str).unwrap();
}
Err(e) => defmt::error!("error reading temp {}", defmt::Debug2Format(&e)),
}
let one_second = Duration::<u64, MONO_NUM, MONO_DENOM>::from_ticks(ONE_SEC_TICKS);
read_temp::spawn_after(one_second).unwrap();
}
#[task(local = [lcd], shared = [delay], capacity = 5)]
@ -272,7 +289,6 @@ mod app {
// Re-spawn this task after 1 second
let one_second = Duration::<u64, MONO_NUM, MONO_DENOM>::from_ticks(ONE_SEC_TICKS);
heartbeat::spawn_after(one_second).unwrap();
display::spawn(ToString::to_string(&"tick")).unwrap();
}
#[task(local = [external_led])]
@ -284,6 +300,5 @@ mod app {
let one_and_one_half_second =
Duration::<u64, MONO_NUM, MONO_DENOM>::from_ticks((ONE_SEC_TICKS as f64 * 1.14) as u64);
second_heartbeat::spawn_after(one_and_one_half_second).unwrap();
display::spawn(ToString::to_string(&"tock")).unwrap();
}
}