Struct ConfiguredSequence 

pub struct ConfiguredSequence<'adc, R: AdcRegs> { /* 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, R: AdcRegs> ConfiguredSequence<'adc, R>

pub async fn read(&mut self, buf: &mut [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<R: AdcRegs> Drop for ConfiguredSequence<'_, R>

fn drop(&mut self)

Executes the destructor for this type.