Struct Dma

pub struct Dma<'a> {
    pub channels: [DmaChannel; 32],
    /* private fields */
}

The DMA peripheral exposes DMA channels.

Fields

channels: [DmaChannel; 32]

The DMA channels

Implementations

impl<'a> Dma<'a>

pub const fn new(ccm: &'a Ccm) -> Self

Create a DMA peripheral.

pub fn clock(&self) -> &(impl ClockInterface + '_)

Returns the interface that controls the DMA clock

pub fn reset_tcds(&self)

Reset all DMA transfer control descriptors.

You should reset these descriptors shortly after system initialization, and before using a DMA channel.

pub fn error_channel(&self) -> Option<&DmaChannel>

Returns a DMA channel that has an error.

This will be faster than searching all DMA channels for an error flag. However, if more than one DMA channel has an error, there’s no guarantee which will be returned first. You should continue calling, and clearing errors, until this returns None.