TPA2016D2

Embedded-hal Driver for the TI TPA2016D2 Stereo Class-D amplifier.

Notes

• Max i2c clock 400 kHz
• Datasheet

Example

#![no_main]
#![no_std]

use cortex_m_rt::entry;
use cortex_m_semihosting::hprintln;
use panic_semihosting as _;

use nucleo_f401re as board;
use board::hal::prelude::*;
use board::hal::stm32;
use board::hal::i2c::I2c;

use tpa2016d2::Tpa2016d2;

#[entry]
fn main() -> ! {
    // The Stm32 peripherals
    let device = stm32::Peripherals::take().unwrap();

    let rcc = device.RCC.constrain();
    let clocks = rcc.cfgr.sysclk(84.mhz()).freeze();

    let gpiob = device.GPIOB.split();
    let scl = gpiob.pb8
        .into_alternate_af4()
        .internal_pull_up(true)
        .set_open_drain();

    let sda = gpiob.pb9
        .into_alternate_af4()
        .internal_pull_up(true)
        .set_open_drain();

    let i2c = I2c::i2c1(device.I2C1, (scl, sda), 200.khz(), clocks);

    let mut tpa = Tpa2016d2::new(i2c);

    // Print the registers
    for i in 1..=7 {
        let v = tpa.read_device_reg(i).unwrap();
        hprintln!("{}: {}", i, v).unwrap();
    }

    // Set the gain
    tpa.gain(32).unwrap();

    // Should print 32
    hprintln!("gain: {}", tpa.read_device_reg(5).unwrap()).unwrap();

    loop {
    }
}

TODO

• Agc Presets
• Features