57d9bfd343
This example will help those having difficulties understanding how to bind interrupts on stm32g0 devices.
49 lines
1.2 KiB
Rust
49 lines
1.2 KiB
Rust
#![no_std]
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#![no_main]
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use defmt::*;
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use embassy_executor::Spawner;
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use embassy_stm32::i2c::{self, I2c};
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use embassy_stm32::time::Hertz;
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use embassy_stm32::{bind_interrupts, peripherals};
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use embassy_time::{Duration, Timer};
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use {defmt_rtt as _, panic_probe as _};
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bind_interrupts!(struct Irqs {
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I2C1 => i2c::EventInterruptHandler<peripherals::I2C1>, i2c::ErrorInterruptHandler<peripherals::I2C1>;
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});
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const TMP117_ADDR: u8 = 0x48;
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const TMP117_TEMP_RESULT: u8 = 0x00;
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#[embassy_executor::main]
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async fn main(_spawner: Spawner) {
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info!("Hello world");
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let p = embassy_stm32::init(Default::default());
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let mut data = [0u8; 2];
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let mut i2c = I2c::new(
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p.I2C1,
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p.PB8,
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p.PB9,
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Irqs,
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p.DMA1_CH1,
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p.DMA1_CH2,
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Hertz(100_000),
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Default::default(),
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);
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loop {
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match i2c.write_read(TMP117_ADDR, &[TMP117_TEMP_RESULT], &mut data).await {
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Ok(()) => {
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let temp = f32::from(i16::from_be_bytes(data)) * 7.8125 / 1000.0;
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info!("Temperature {}", temp);
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}
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Err(_) => error!("I2C Error"),
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}
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Timer::after(Duration::from_millis(1000)).await;
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}
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}
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