f95ab0def5
* Accept more types in embassy::init * Apply the same treatment to esp-wifi * Changelog * Clean up * Add doc examples * Fix Alarm generic parameters
70 lines
1.8 KiB
Rust
70 lines
1.8 KiB
Rust
//! Embassy "async" vesrion of ead calibration data from BMP180 sensor
|
|
//!
|
|
//! This example dumps the calibration data from a BMP180 sensor by reading by reading
|
|
//! with the direct I2C API and the embedded-hal-async I2C API.
|
|
//!
|
|
//! Folowing pins are used:
|
|
//! - SDA => GPIO4
|
|
//! - SCL => GPIO5
|
|
//!
|
|
//! Depending on your target and the board you are using you have to change the
|
|
//! pins.
|
|
//!
|
|
|
|
//% CHIPS: esp32 esp32c2 esp32c3 esp32c6 esp32h2 esp32s2 esp32s3
|
|
//% FEATURES: async embassy embassy-generic-timers
|
|
|
|
#![no_std]
|
|
#![no_main]
|
|
|
|
use embassy_executor::Spawner;
|
|
use embassy_time::{Duration, Timer};
|
|
use esp_backtrace as _;
|
|
use esp_hal::{
|
|
clock::ClockControl,
|
|
gpio::Io,
|
|
i2c::I2C,
|
|
peripherals::Peripherals,
|
|
prelude::*,
|
|
system::SystemControl,
|
|
timer::timg::TimerGroup,
|
|
};
|
|
|
|
#[esp_hal_embassy::main]
|
|
async fn main(_spawner: Spawner) {
|
|
let peripherals = Peripherals::take();
|
|
let system = SystemControl::new(peripherals.SYSTEM);
|
|
let clocks = ClockControl::boot_defaults(system.clock_control).freeze();
|
|
|
|
let timg0 = TimerGroup::new(peripherals.TIMG0, &clocks);
|
|
esp_hal_embassy::init(&clocks, timg0.timer0);
|
|
|
|
let io = Io::new(peripherals.GPIO, peripherals.IO_MUX);
|
|
|
|
let mut i2c = I2C::new_async(
|
|
peripherals.I2C0,
|
|
io.pins.gpio4,
|
|
io.pins.gpio5,
|
|
400.kHz(),
|
|
&clocks,
|
|
);
|
|
|
|
loop {
|
|
let mut data = [0u8; 22];
|
|
i2c.write_read(0x77, &[0xaa], &mut data).await.unwrap();
|
|
esp_println::println!("direct: {:02x?}", data);
|
|
read_data(&mut i2c).await;
|
|
Timer::after(Duration::from_millis(1000)).await;
|
|
}
|
|
}
|
|
|
|
async fn read_data<I2C>(i2c: &mut I2C)
|
|
where
|
|
I2C: embedded_hal_async::i2c::I2c,
|
|
{
|
|
let mut data = [0u8; 22];
|
|
i2c.write_read(0x77, &[0xaa], &mut data).await.unwrap();
|
|
|
|
esp_println::println!("embedded_hal: {:02x?}", data);
|
|
}
|