From f9753f3d314ca00fb36103fa39b0911d3e3047ba Mon Sep 17 00:00:00 2001 From: Siarhei B Date: Mon, 21 Jul 2025 14:22:32 +0200 Subject: mspm0: Add I2C Controller examples for mspm0l1306, mspm0g3507 MCUs - mspm0l1306 examples: add I2C blocking & async examples - mspm0l1306 examples: add -O2 optimization due to Flash limitations - mspm0g3507 examples: add I2C blocking & async examples --- examples/mspm0g3507/src/bin/i2c.rs | 37 +++++++++++++++++++++++++++ examples/mspm0g3507/src/bin/i2c_async.rs | 43 ++++++++++++++++++++++++++++++++ examples/mspm0l1306/Cargo.toml | 4 +++ examples/mspm0l1306/src/bin/i2c.rs | 37 +++++++++++++++++++++++++++ examples/mspm0l1306/src/bin/i2c_async.rs | 43 ++++++++++++++++++++++++++++++++ 5 files changed, 164 insertions(+) create mode 100644 examples/mspm0g3507/src/bin/i2c.rs create mode 100644 examples/mspm0g3507/src/bin/i2c_async.rs create mode 100644 examples/mspm0l1306/src/bin/i2c.rs create mode 100644 examples/mspm0l1306/src/bin/i2c_async.rs diff --git a/examples/mspm0g3507/src/bin/i2c.rs b/examples/mspm0g3507/src/bin/i2c.rs new file mode 100644 index 000000000..752649dbc --- /dev/null +++ b/examples/mspm0g3507/src/bin/i2c.rs @@ -0,0 +1,37 @@ +//! Example of using blocking I2C +//! +//! This uses the virtual COM port provided on the LP-MSPM0G3507 board. + +#![no_std] +#![no_main] + +use defmt::*; +use embassy_executor::Spawner; +use embassy_mspm0::i2c::{BusSpeed, ClockSel, Config, I2c}; +use {defmt_rtt as _, panic_halt as _}; + +const ADDRESS: u8 = 0x6a; + +#[embassy_executor::main] +async fn main(_spawner: Spawner) -> ! { + let p = embassy_mspm0::init(Default::default()); + + let instance = p.I2C1; + let scl = p.PB2; + let sda = p.PB3; + + let mut config = Config::default(); + config.clock_source = ClockSel::BusClk; + config.bus_speed = BusSpeed::FastMode; + let mut i2c = unwrap!(I2c::new_blocking(instance, scl, sda, config)); + + let mut to_read = [0u8; 1]; + let to_write: u8 = 0x0F; + + match i2c.blocking_write_read(ADDRESS, &[to_write], &mut to_read) { + Ok(()) => info!("Register {}: {}", to_write, to_read[0]), + Err(e) => error!("I2c Error: {:?}", e), + } + + loop {} +} diff --git a/examples/mspm0g3507/src/bin/i2c_async.rs b/examples/mspm0g3507/src/bin/i2c_async.rs new file mode 100644 index 000000000..bc50a2623 --- /dev/null +++ b/examples/mspm0g3507/src/bin/i2c_async.rs @@ -0,0 +1,43 @@ +//! Example of using async I2C +//! +//! This uses the virtual COM port provided on the LP-MSPM0G3507 board. + +#![no_std] +#![no_main] + +use defmt::*; +use embassy_executor::Spawner; +use embassy_mspm0::bind_interrupts; +use embassy_mspm0::i2c::{BusSpeed, ClockSel, Config, I2c, InterruptHandler}; +use embassy_mspm0::peripherals::I2C1; +use {defmt_rtt as _, panic_halt as _}; + +const ADDRESS: u8 = 0x6a; + +bind_interrupts!(struct Irqs { + I2C1 => InterruptHandler; +}); + +#[embassy_executor::main] +async fn main(_spawner: Spawner) -> ! { + let p = embassy_mspm0::init(Default::default()); + + let instance = p.I2C1; + let scl = p.PB2; + let sda = p.PB3; + + let mut config = Config::default(); + config.clock_source = ClockSel::BusClk; + config.bus_speed = BusSpeed::FastMode; + let mut i2c = unwrap!(I2c::new_async(instance, scl, sda, Irqs, config)); + + let mut to_read = [0u8; 1]; + let to_write: u8 = 0x0F; + + match i2c.async_write_read(ADDRESS, &[to_write], &mut to_read).await { + Ok(()) => info!("Register {}: {}", to_write, to_read[0]), + Err(e) => error!("I2c Error: {:?}", e), + } + + loop {} +} diff --git a/examples/mspm0l1306/Cargo.toml b/examples/mspm0l1306/Cargo.toml index 6b1125810..b59c06257 100644 --- a/examples/mspm0l1306/Cargo.toml +++ b/examples/mspm0l1306/Cargo.toml @@ -19,3 +19,7 @@ panic-semihosting = "0.6.0" [profile.release] debug = 2 + +[profile.dev] +debug = 2 +opt-level = 2 diff --git a/examples/mspm0l1306/src/bin/i2c.rs b/examples/mspm0l1306/src/bin/i2c.rs new file mode 100644 index 000000000..02c0ee740 --- /dev/null +++ b/examples/mspm0l1306/src/bin/i2c.rs @@ -0,0 +1,37 @@ +//! Example of using blocking I2C +//! +//! This uses the virtual COM port provided on the LP-MSPM0L1306 board. + +#![no_std] +#![no_main] + +use defmt::*; +use embassy_executor::Spawner; +use embassy_mspm0::i2c::{BusSpeed, ClockSel, Config, I2c}; +use {defmt_rtt as _, panic_halt as _}; + +const ADDRESS: u8 = 0x6a; + +#[embassy_executor::main] +async fn main(_spawner: Spawner) -> ! { + let p = embassy_mspm0::init(Default::default()); + + let instance = p.I2C0; + let scl = p.PA1; + let sda = p.PA0; + + let mut config = Config::default(); + config.clock_source = ClockSel::BusClk; + config.bus_speed = BusSpeed::FastMode; + let mut i2c = unwrap!(I2c::new_blocking(instance, scl, sda, config)); + + let mut to_read = [0u8; 1]; + let to_write: u8 = 0x0F; + + match i2c.blocking_write_read(ADDRESS, &[to_write], &mut to_read) { + Ok(()) => info!("Register {}: {}", to_write, to_read[0]), + Err(e) => error!("I2c Error: {:?}", e), + } + + loop {} +} diff --git a/examples/mspm0l1306/src/bin/i2c_async.rs b/examples/mspm0l1306/src/bin/i2c_async.rs new file mode 100644 index 000000000..34e2c64e7 --- /dev/null +++ b/examples/mspm0l1306/src/bin/i2c_async.rs @@ -0,0 +1,43 @@ +//! Example of using async I2C +//! +//! This uses the virtual COM port provided on the LP-MSPM0L1306 board. + +#![no_std] +#![no_main] + +use defmt::*; +use embassy_executor::Spawner; +use embassy_mspm0::bind_interrupts; +use embassy_mspm0::i2c::{BusSpeed, ClockSel, Config, I2c, InterruptHandler}; +use embassy_mspm0::peripherals::I2C0; +use {defmt_rtt as _, panic_halt as _}; + +const ADDRESS: u8 = 0x6a; + +bind_interrupts!(struct Irqs { + I2C0 => InterruptHandler; +}); + +#[embassy_executor::main] +async fn main(_spawner: Spawner) -> ! { + let p = embassy_mspm0::init(Default::default()); + + let instance = p.I2C0; + let scl = p.PA1; + let sda = p.PA0; + + let mut config = Config::default(); + config.clock_source = ClockSel::BusClk; + config.bus_speed = BusSpeed::FastMode; + let mut i2c = unwrap!(I2c::new_async(instance, scl, sda, Irqs, config)); + + let mut to_read = [0u8; 1]; + let to_write: u8 = 0x0F; + + match i2c.async_write_read(ADDRESS, &[to_write], &mut to_read).await { + Ok(()) => info!("Register {}: {}", to_write, to_read[0]), + Err(e) => error!("I2c Error: {:?}", e), + } + + loop {} +} -- cgit