I2C driver for the IS31FL3193 RGB LED driver
This crate uses probe-run to run the examples. Once set up,
it should be as simple as cargo run --example <example name> --release.
From examples/rppico_blink.rs:
```rust
use fugit::RateExtU32; use hal::pac;
use defmtrtt as _; use panicprobe as _;
use is31fl3193::*; use rp2040hal as hal; use rppico::{ entry, hal::{Clock, I2C}, XOSCCRYSTALFREQ, };
fn main() -> ! { let pac = pac::Peripherals::take().unwrap(); // Set up the watchdog driver - needed by the clock setup code let mut watchdog = hal::Watchdog::new(pac.WATCHDOG); // Soft-reset does not release the hardware spinlocks // Release them now to avoid a deadlock after debug or watchdog reset unsafe { rppico::hal::sio::spinlockreset(); } let mut resets = pac.RESETS;
// Configure the clocks
let clocks = hal::clocks::init_clocks_and_plls(
XOSC_CRYSTAL_FREQ,
pac.XOSC,
pac.CLOCKS,
pac.PLL_SYS,
pac.PLL_USB,
&mut resets,
&mut watchdog,
)
.ok()
.unwrap();
let sio = hal::Sio::new(pac.SIO);
let pins = rp_pico::Pins::new(pac.IO_BANK0, pac.PADS_BANK0, sio.gpio_bank0, &mut resets);
// ----------------------------------------------------------------
// ----I2C0---- configuration
// ----------------------------------------------------------------
let i2c0 = I2C::i2c0(
pac.I2C0,
pins.gpio20.into_mode(),
pins.gpio21.into_mode(),
400.kHz(),
&mut resets,
clocks.peripheral_clock.freq(),
);
let mut led_drv = IS31FL3193::new(i2c0, ADPin::ToGND);
//
// 1, Example PWM
//
// Before exiting from shutdown, set the maximum current allowed
led_drv.set_max_current(Intensity::MA5).unwrap();
// Set the mode we want (PWM is default)
led_drv.set_mode(Mode::PWM).unwrap();
// Set PWM values
led_drv.set_pwm(100, 0, 75).unwrap();
// Enable LEDS and go out of shutdown mode
led_drv.shutdown(true, false).unwrap();
// //
// // 2, Example Breath
// //
// // Before exiting from shutdown, set the maximum current allowed
// led_drv.set_max_current(Intensity::MA5).unwrap();
// // PWM setting is also necessary for breathing mode
// led_drv.set_pwm(50, 50, 50).unwrap();
// // Set the mode we want (PWM is default)
// led_drv
// .set_mode(Mode::Breath(BreathingMode::Auto, Marking::Off))
// .unwrap();
// // Enable LEDS and go out of shutdown mode
// led_drv.shutdown(true, false).unwrap();
// //
// // 3, Example Breath with differents timing for each color
// //
// // Before exiting from shutdown, set the maximum current allowed
// led_drv.set_max_current(Intensity::MA5).unwrap();
// // Set custom timings
// led_drv
// .set_timing(
// Channel::Led1,
// T0::MS260,
// T1::MS130,
// T2::MS130,
// T3::MS260,
// T4::MS130,
// )
// .unwrap();
// led_drv
// .set_timing(
// Channel::Led2,
// T0::MS130,
// T1::MS130,
// T2::MS130,
// T3::MS520,
// T4::MS130,
// )
// .unwrap();
// led_drv
// .set_timing(
// Channel::Led3,
// T0::MS130,
// T1::MS1040,
// T2::MS130,
// T3::MS130,
// T4::MS130,
// )
// .unwrap();
// // PWM setting is also necessary for breathing mode
// led_drv.set_pwm(50, 50, 50).unwrap();
// // Set the mode we want (PWM is default)
// led_drv
// .set_mode(Mode::Breath(BreathingMode::Auto, Marking::Off))
// .unwrap();
// // Enable LEDS and go out of shutdown mode
// led_drv.shutdown(true, false).unwrap();
defmt::info!("Done, entering loop");
loop {}
}
// same panicking behavior as panic-probe but doesn't print a panic message
// this prevents the panic message being printed twice when defmt::panic is invoked
fn panic() -> ! { cortex_m::asm::udf() }
/// Terminates the application and makes probe-run exit with exit-code = 0
pub fn exit() -> ! {
loop {
cortex_m::asm::bkpt();
}
}
```
Licensed under either of
at your option.
Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in the work by you, as defined in the Apache-2.0 license, shall be dual licensed as above, without any additional terms or conditions.