2 files changed, 91 insertions(+), 0 deletions(-)

M Cargo.toml
A examples/mii.rs

@@ 22,6 22,7 @@ rp-pico = "0.2.0"
 [dev-dependencies]
 debounced-button = "0.2.0"
 ad5328 = "0.1.1"
+mii = "0.1.1"
 
 # cargo build/run
 [profile.dev]

@@ 0,0 1,90 @@
+//! Reads the value of the first fader of the 16n faderbank using monome ii (i2c)
+#![no_std]
+#![no_main]
+
+// https://www.thonk.co.uk/wp-content/uploads/2017/07/Stereo-Thonkiconn-Datasheetimage.jpg
+// 3 TIP SDA
+// 2 RING CLK
+// 1 GND GND
+
+use cortex_m_rt::entry;
+use defmt::*;
+use defmt_rtt as _;
+use embedded_time::{fixed_point::FixedPoint, rate::Extensions};
+use mii::{Faderbank, Mii};
+use panic_probe as _;
+
+// Provide an alias for our BSP so we can switch targets quickly.
+// Uncomment the BSP you included in Cargo.toml, the rest of the code does not need to change.
+use rp_pico as bsp;
+// use sparkfun_pro_micro_rp2040 as bsp;
+
+use bsp::hal::{
+    clocks::{init_clocks_and_plls, Clock},
+    pac,
+    sio::Sio,
+    watchdog::Watchdog,
+};
+
+#[entry]
+fn main() -> ! {
+    info!("Program start");
+    let mut pac = pac::Peripherals::take().unwrap();
+    let core = pac::CorePeripherals::take().unwrap();
+    let mut watchdog = Watchdog::new(pac.WATCHDOG);
+    let sio = Sio::new(pac.SIO);
+
+    // External high-speed crystal on the pico board is 12Mhz
+    let external_xtal_freq_hz = 12_000_000u32;
+    let clocks = init_clocks_and_plls(
+        external_xtal_freq_hz,
+        pac.XOSC,
+        pac.CLOCKS,
+        pac.PLL_SYS,
+        pac.PLL_USB,
+        &mut pac.RESETS,
+        &mut watchdog,
+    )
+    .ok()
+    .unwrap();
+
+    let mut delay = cortex_m::delay::Delay::new(core.SYST, clocks.system_clock.freq().integer());
+
+    let pins = bsp::Pins::new(
+        pac.IO_BANK0,
+        pac.PADS_BANK0,
+        sio.gpio_bank0,
+        &mut pac.RESETS,
+    );
+
+    // Configure two pins as being I²C, not GPIO
+    let sda_pin = pins.gpio16.into_mode::<bsp::hal::gpio::FunctionI2C>();
+    let scl_pin = pins.gpio17.into_mode::<bsp::hal::gpio::FunctionI2C>();
+
+    // Create the I²C driver, using the two pre-configured pins. This will fail
+    // at compile time if the pins are in the wrong mode, or if this I²C
+    // peripheral isn't available on these pins!
+    let i2c = bsp::hal::I2C::i2c0(
+        pac.I2C0,
+        sda_pin,
+        scl_pin,
+        400.kHz(),
+        &mut pac.RESETS,
+        clocks.peripheral_clock,
+    );
+
+    let mii = Mii::new(i2c);
+    let mut faderbank = Faderbank::new(&mii);
+    let mut fader_value = 0u16;
+
+    loop {
+        info!("on!");
+        if let Ok(value) = faderbank.read_fader(0) {
+            fader_value = value;
+        }
+        info!("fader 1 value: {}", fader_value);
+        delay.delay_ms(500);
+    }
+}
+
+// End of file