Struct Adc 

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

Analog to Digital driver.

Implementations

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

where T: Instance,

pub fn new(adc: Peri<'d, T>) -> Self

pub fn new_with_config(adc: Peri<'d, T>, config: AdcConfig) -> Self

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.

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

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

Read an ADC pin.

pub fn into_ring_buffered<'a>( self, dma: Peri<'a, impl RxDma<T>>, dma_buf: &'a mut [u16], sequence: impl ExactSizeIterator<Item = (AnyAdcChannel<T>, SampleTime)>, mode: RegularConversionMode, ) -> RingBufferedAdc<'a, T>

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

Use the [read] method to retrieve measurements from the DMA ring buffer. The read buffer should be exactly half the size of dma_buf. When using triggered mode, it is recommended to configure dma_buf as a double buffer so that one half can be read while the other half is being filled by the DMA, preventing data loss. The trigger period of the ADC effectively defines the period at which the buffer should be read.

If continous conversion mode is selected, the provided dma_buf must be large enough to prevent DMA buffer overruns. Its length should be a multiple of the number of ADC channels being measured. For example, if 3 channels are measured and you want to store 40 samples per channel, the buffer length should be 3 * 40 = 120.

Parameters

• dma: The DMA peripheral used to transfer ADC data into the buffer.
• dma_buf: The buffer where DMA stores ADC samples.
• regular_sequence: Sequence of channels and sample times for regular ADC conversions.
• regular_conversion_mode: Mode for regular conversions (continuous or triggered).

Returns

A RingBufferedAdc<'a, T> instance configured for continuous DMA-based sampling.

Trait Implementations

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

fn drop(&mut self)

Executes the destructor for this type.