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-rw-r--r--examples/stm32f4/src/bin/i2c.rs30
1 files changed, 30 insertions, 0 deletions
diff --git a/examples/stm32f4/src/bin/i2c.rs b/examples/stm32f4/src/bin/i2c.rs
new file mode 100644
index 000000000..99e3cecfc
--- /dev/null
+++ b/examples/stm32f4/src/bin/i2c.rs
@@ -0,0 +1,30 @@
1#![no_std]
2#![no_main]
3#![feature(type_alias_impl_trait)]
4
5use defmt::*;
6use embassy_executor::Spawner;
7use embassy_stm32::i2c::{Error, I2c, TimeoutI2c};
8use embassy_stm32::time::Hertz;
9use embassy_time::Duration;
10use {defmt_rtt as _, panic_probe as _};
11
12const ADDRESS: u8 = 0x5F;
13const WHOAMI: u8 = 0x0F;
14
15#[embassy_executor::main]
16async fn main(_spawner: Spawner) -> ! {
17 info!("Hello world!");
18 let p = embassy_stm32::init(Default::default());
19
20 let mut i2c = I2c::new(p.I2C2, p.PB10, p.PB11, Hertz(100_000), Default::default());
21 let mut timeout_i2c = TimeoutI2c::new(&mut i2c, Duration::from_millis(1000));
22
23 let mut data = [0u8; 1];
24
25 match timeout_i2c.blocking_write_read(ADDRESS, &[WHOAMI], &mut data) {
26 Ok(()) => info!("Whoami: {}", data[0]),
27 Err(Error::Timeout) => error!("Operation timed out"),
28 Err(e) => error!("I2c Error: {:?}", e),
29 }
30}