Struct embassy_stm32::adc::Adc

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

Analog to Digital driver.

Implementations

impl<'d, T: Instance> Adc<'d, T>

pub fn into_ring_buffered( self, dma: impl Peripheral<P = impl RxDma<T>> + 'd, dma_buf: &'d mut [u16], ) -> RingBufferedAdc<'d, T>

Configures the ADC to use a DMA ring buffer for continuous data acquisition.

The dma_buf should be large enough to prevent DMA buffer overrun. The length of the dma_buf should be a multiple of the ADC channel count. For example, if 3 channels are measured, its length can be 3 * 40 = 120 measurements.

read method is used to read out measurements from the DMA ring buffer, and its buffer should be exactly half of the dma_buf length. It is critical to call read frequently to prevent DMA buffer overrun.

impl<'d, T> Adc<'d, T>

where T: Instance,

pub fn new(adc: impl Peripheral<P = T> + 'd) -> Self

pub fn set_sample_time(&mut self, sample_time: SampleTime)

pub fn set_resolution(&mut self, resolution: Resolution)

pub fn enable_vrefint(&self) -> VrefInt

Enables internal voltage reference and returns VrefInt, which can be used in [Adc::read_internal()] to perform conversion.

pub fn enable_temperature(&self) -> Temperature

Enables internal temperature sensor and returns Temperature, which can be used in [Adc::read_internal()] to perform conversion.

On STM32F42 and STM32F43 this can not be used together with Vbat. If both are enabled, temperature sensor will return vbat value.

pub fn enable_vbat(&self) -> Vbat

Enables vbat input and returns Vbat, which can be used in [Adc::read_internal()] to perform conversion.

pub fn blocking_read(&mut self, channel: &mut impl AdcChannel<T>) -> u16

Trait Implementations

impl<'d, T: Instance> Drop for Adc<'d, T>

fn drop(&mut self)

Executes the destructor for this type.