diff options
Diffstat (limited to 'examples/mspm0g3507')
| -rw-r--r-- | examples/mspm0g3507/src/bin/i2c.rs | 45 | ||||
| -rw-r--r-- | examples/mspm0g3507/src/bin/i2c_async.rs | 50 |
2 files changed, 95 insertions, 0 deletions
diff --git a/examples/mspm0g3507/src/bin/i2c.rs b/examples/mspm0g3507/src/bin/i2c.rs new file mode 100644 index 000000000..8d1ed1726 --- /dev/null +++ b/examples/mspm0g3507/src/bin/i2c.rs | |||
| @@ -0,0 +1,45 @@ | |||
| 1 | //! This example uses FIFO with polling, and the maximum FIFO size is 8. | ||
| 2 | //! Refer to async example to handle larger packets. | ||
| 3 | //! | ||
| 4 | //! This example controls AD5171 digital potentiometer via I2C with the LP-MSPM0G3507 board. | ||
| 5 | |||
| 6 | #![no_std] | ||
| 7 | #![no_main] | ||
| 8 | |||
| 9 | use defmt::*; | ||
| 10 | use embassy_executor::Spawner; | ||
| 11 | use embassy_mspm0::i2c::{Config, I2c}; | ||
| 12 | use embassy_time::Timer; | ||
| 13 | use {defmt_rtt as _, panic_halt as _}; | ||
| 14 | |||
| 15 | const ADDRESS: u8 = 0x6a; | ||
| 16 | |||
| 17 | #[embassy_executor::main] | ||
| 18 | async fn main(_spawner: Spawner) -> ! { | ||
| 19 | let p = embassy_mspm0::init(Default::default()); | ||
| 20 | |||
| 21 | let instance = p.I2C1; | ||
| 22 | let scl = p.PB2; | ||
| 23 | let sda = p.PB3; | ||
| 24 | |||
| 25 | let mut i2c = unwrap!(I2c::new_blocking(instance, scl, sda, Config::default())); | ||
| 26 | |||
| 27 | let mut pot_value: u8 = 0; | ||
| 28 | |||
| 29 | loop { | ||
| 30 | let to_write = [0u8, pot_value]; | ||
| 31 | |||
| 32 | match i2c.blocking_write(ADDRESS, &to_write) { | ||
| 33 | Ok(()) => info!("New potentioemter value: {}", pot_value), | ||
| 34 | Err(e) => error!("I2c Error: {:?}", e), | ||
| 35 | } | ||
| 36 | |||
| 37 | pot_value += 1; | ||
| 38 | // if reached 64th position (max) | ||
| 39 | // start over from lowest value | ||
| 40 | if pot_value == 64 { | ||
| 41 | pot_value = 0; | ||
| 42 | } | ||
| 43 | Timer::after_millis(500).await; | ||
| 44 | } | ||
| 45 | } | ||
diff --git a/examples/mspm0g3507/src/bin/i2c_async.rs b/examples/mspm0g3507/src/bin/i2c_async.rs new file mode 100644 index 000000000..d486e2a03 --- /dev/null +++ b/examples/mspm0g3507/src/bin/i2c_async.rs | |||
| @@ -0,0 +1,50 @@ | |||
| 1 | //! The example uses FIFO and interrupts, wrapped in async API. | ||
| 2 | //! | ||
| 3 | //! This example controls AD5171 digital potentiometer via I2C with the LP-MSPM0G3507 board. | ||
| 4 | |||
| 5 | #![no_std] | ||
| 6 | #![no_main] | ||
| 7 | |||
| 8 | use defmt::*; | ||
| 9 | use embassy_executor::Spawner; | ||
| 10 | use embassy_mspm0::bind_interrupts; | ||
| 11 | use embassy_mspm0::i2c::{Config, I2c, InterruptHandler}; | ||
| 12 | use embassy_mspm0::peripherals::I2C1; | ||
| 13 | use embassy_time::Timer; | ||
| 14 | use {defmt_rtt as _, panic_halt as _}; | ||
| 15 | |||
| 16 | const ADDRESS: u8 = 0x6a; | ||
| 17 | |||
| 18 | bind_interrupts!(struct Irqs { | ||
| 19 | I2C1 => InterruptHandler<I2C1>; | ||
| 20 | }); | ||
| 21 | |||
| 22 | #[embassy_executor::main] | ||
| 23 | async fn main(_spawner: Spawner) -> ! { | ||
| 24 | let p = embassy_mspm0::init(Default::default()); | ||
| 25 | |||
| 26 | let instance = p.I2C1; | ||
| 27 | let scl = p.PB2; | ||
| 28 | let sda = p.PB3; | ||
| 29 | |||
| 30 | let mut i2c = unwrap!(I2c::new_async(instance, scl, sda, Irqs, Config::default())); | ||
| 31 | |||
| 32 | let mut pot_value: u8 = 0; | ||
| 33 | |||
| 34 | loop { | ||
| 35 | let to_write = [0u8, pot_value]; | ||
| 36 | |||
| 37 | match i2c.async_write(ADDRESS, &to_write).await { | ||
| 38 | Ok(()) => info!("New potentioemter value: {}", pot_value), | ||
| 39 | Err(e) => error!("I2c Error: {:?}", e), | ||
| 40 | } | ||
| 41 | |||
| 42 | pot_value += 1; | ||
| 43 | // if reached 64th position (max) | ||
| 44 | // start over from lowest value | ||
| 45 | if pot_value == 64 { | ||
| 46 | pot_value = 0; | ||
| 47 | } | ||
| 48 | Timer::after_millis(500).await; | ||
| 49 | } | ||
| 50 | } | ||
