6d6f6a7baa
* Move I2C driver to i2c::master * Update esp-hal/CHANGELOG.md Co-authored-by: Dominic Fischer <14130965+Dominaezzz@users.noreply.github.com> --------- Co-authored-by: Dominic Fischer <14130965+Dominaezzz@users.noreply.github.com>
54 lines
1.6 KiB
Rust
54 lines
1.6 KiB
Rust
//! Embassy "async" version 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.
|
|
//!
|
|
//! Following 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: embassy embassy-generic-timers
|
|
|
|
#![no_std]
|
|
#![no_main]
|
|
|
|
use embassy_executor::Spawner;
|
|
use embassy_time::{Duration, Timer};
|
|
use esp_backtrace as _;
|
|
use esp_hal::{gpio::Io, i2c::master::I2c, prelude::*, timer::timg::TimerGroup};
|
|
|
|
#[esp_hal_embassy::main]
|
|
async fn main(_spawner: Spawner) {
|
|
let peripherals = esp_hal::init(esp_hal::Config::default());
|
|
|
|
let timg0 = TimerGroup::new(peripherals.TIMG0);
|
|
esp_hal_embassy::init(timg0.timer0);
|
|
|
|
let io = Io::new(peripherals.GPIO, peripherals.IO_MUX);
|
|
|
|
let mut i2c = I2c::new(peripherals.I2C0, io.pins.gpio4, io.pins.gpio5, 400.kHz()).into_async();
|
|
|
|
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);
|
|
}
|