Struct Mdf 

pub struct Mdf<'d, T: Instance, F: Filter> { /* private fields */ }

Ring-buffered MDF driver for one digital filter.

Implementations

impl<'d, T: Instance, F: Filter> Mdf<'d, T, F>

pub fn new<D>( peri: Peri<'d, T>, irq: impl Binding<F::Interrupt, FilterInterruptHandler<T, F>> + Binding<D::Interrupt, InterruptHandler<D>> + 'd, config: Config, cck: Peri<'d, impl CckPin<T>>, sdi: Peri<'d, impl SdiPin<T>>, dma: Peri<'d, D>, dma_buf: &'d mut [u32], ) -> Self

where D: RxDma<T, F>, F: FilterInterrupt,

Create a new MDF instance for filter F.

cck drives the PDM bit clock and sdi receives the PDM data stream for the serial interface with the same index as the filter.

pub fn start(&mut self)

Start filter acquisition and DMA.

pub async fn read_raw(&mut self, words: &mut [u32]) -> Result<(), Error>

Read raw 32-bit DMA words from the filter output ring buffer.

pub fn kernel_clock_hz(&self) -> u32

Return the kernel clock frequency in Hz.

Trait Implementations

impl<'d, T: Instance, F: Filter> Drop for Mdf<'d, T, F>

fn drop(&mut self)

Executes the destructor for this type.