Struct ConfiguredSequence 

pub struct ConfiguredSequence<'adc, 'd, T: Instance, D: RxDma<T>> { /* private fields */ }

An ADC with a pre-configured channel sequence for repeated DMA reads.

Unlike [Adc::read], this type programs the ADC channel sequence registers only once at construction. Each call to read reuses the existing hardware sequence configuration, avoiding the per-call overhead of reprogramming the sequence registers.

Obtain via [Adc::configured_sequence].

Implementations

impl<'adc, 'd, T: Instance, D: RxDma<T>> ConfiguredSequence<'adc, 'd, T, D>

pub async fn read( &mut self, irq: impl Binding<D::Interrupt, InterruptHandler<D>>, ) -> &[u16]

Trigger one DMA conversion of the pre-configured channel sequence and wait for it to complete.

Returns a slice over the results in the same channel order as the sequence passed to [Adc::configured_sequence].

The ADC and DMA are configured once at construction by [Adc::configured_sequence]. The hardware is configured so that DMA stays armed between calls while the ADC runs only one sequence per start call.

Trait Implementations

impl<T: Instance, D: RxDma<T>> Drop for ConfiguredSequence<'_, '_, T, D>

fn drop(&mut self)

Executes the destructor for this type.