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b90ea68931
* docs: 📝 Doccument embassy I2C example * docs: 📝 Improve documentation of embassy SPI example * docs: 📝 Doccument AES and RSA example * docs: 📝 Update changelog
88 lines
2.2 KiB
Rust
88 lines
2.2 KiB
Rust
//! Embassy I2C
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//!
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//! Folowing pins are used:
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//! SDA GPIO1
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//! SCL GPIO2
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//!
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//! Depending on your target and the board you are using you have to change the
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//! pins.
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//!
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//! This is an example of running the embassy executor with IC2. It uses an
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//! LIS3DH to get accelerometer data.
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#![no_std]
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#![no_main]
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#![feature(type_alias_impl_trait)]
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use embassy_executor::Executor;
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use embassy_time::{Duration, Timer};
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use esp32s2_hal::{
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clock::ClockControl,
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embassy,
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i2c::I2C,
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peripherals::{Interrupt, Peripherals, I2C0},
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prelude::*,
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timer::TimerGroup,
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Priority,
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Rtc,
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IO,
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};
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use esp_backtrace as _;
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use lis3dh_async::{Lis3dh, Range, SlaveAddr};
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use static_cell::StaticCell;
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#[embassy_executor::task]
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async fn run(i2c: I2C<'static, I2C0>) {
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let mut lis3dh = Lis3dh::new_i2c(i2c, SlaveAddr::Alternate).await.unwrap();
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lis3dh.set_range(Range::G8).await.unwrap();
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loop {
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let norm = lis3dh.accel_norm().await.unwrap();
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esp_println::println!("X: {:+.5} Y: {:+.5} Z: {:+.5}", norm.x, norm.y, norm.z);
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Timer::after(Duration::from_millis(100)).await;
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}
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}
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static EXECUTOR: StaticCell<Executor> = StaticCell::new();
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#[entry]
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fn main() -> ! {
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let peripherals = Peripherals::take();
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let mut system = peripherals.SYSTEM.split();
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let clocks = ClockControl::boot_defaults(system.clock_control).freeze();
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let timer_group0 = TimerGroup::new(
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peripherals.TIMG0,
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&clocks,
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&mut system.peripheral_clock_control,
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);
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let mut wdt = timer_group0.wdt;
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let mut rtc = Rtc::new(peripherals.RTC_CNTL);
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// Disable watchdog timer
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wdt.disable();
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rtc.rwdt.disable();
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#[cfg(feature = "embassy-time-timg0")]
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embassy::init(&clocks, timer_group0.timer0);
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let io = IO::new(peripherals.GPIO, peripherals.IO_MUX);
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let i2c0 = I2C::new(
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peripherals.I2C0,
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io.pins.gpio1,
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io.pins.gpio2,
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400u32.kHz(),
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&mut system.peripheral_clock_control,
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&clocks,
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);
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esp32s2_hal::interrupt::enable(Interrupt::I2C_EXT0, Priority::Priority1).unwrap();
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let executor = EXECUTOR.init(Executor::new());
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executor.run(|spawner| {
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spawner.spawn(run(i2c0)).ok();
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});
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}
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