Module dfsdm 

Digital Filter and Sigma-Delta Modulator (DFSDM)

One core owns a DFSDM instance. The driver takes no cross-core lock, so sharing an instance across cores needs external synchronization (an HSEM, for example): the CR1/CR2/CFGR1 read-modify-writes, the per-instance armed caches and the RCC disable on drop all race otherwise.

Re-exports

pub use detector::*;

pub use dma::*;

pub use filter::*;

pub use splits::*;

pub use transceiver::*;

pub use types::*;

Modules

config

Config value types used across the driver: filter parameters, data packing and shift modes, clock/output sources, and trigger/edge configuration.

detector

Instance-level and filter-level detectors: the analog watchdog, extremes, short-circuit and clock-absence detectors.

dma

DMA support: the ring-buffered regular-conversion filter that reads converted samples via DMA.

filter

Filter and its interrupt handling: filter configuration, the filter driver type, the interrupt handler, and per-filter interrupt/event state.

splits

Split-build traits: the interface between configure_pins’ closure tuple and the shape-dependent split structs. The split structs, selectors and ChannelCfgTuple impls are generated by build.rs (see src/dfsdm/codegen.rs) and glob-re-exported from crate::_generated::dfsdm.

transceiver

Transceiver driver, its pin-slot storage, single-use pin selectors, and the pin-trait associations.

types

Type-system: sealed and capability markers, channel markers, pin-presence (PinSet) and channel-config tokens, indexed channel types and trigger types.

Structs

ChannelSelectors2

The pin selectors handed to the crate::dfsdm::Dfsdm::configure_pins closure. Declare each transceiver’s pins with crate::dfsdm::Sel::datin, crate::dfsdm::Sel::datin_ckin or crate::dfsdm::Sel::none.

ChannelSelectors4

The pin selectors handed to the crate::dfsdm::Dfsdm::configure_pins closure. Declare each transceiver’s pins with crate::dfsdm::Sel::datin, crate::dfsdm::Sel::datin_ckin or crate::dfsdm::Sel::none.

ChannelSelectors8

The pin selectors handed to the crate::dfsdm::Dfsdm::configure_pins closure. Declare each transceiver’s pins with crate::dfsdm::Sel::datin, crate::dfsdm::Sel::datin_ckin or crate::dfsdm::Sel::none.

Dfsdm

DFSDM driver entry point.

DfsdmCommon

Holds references to the peripheral and the optional clock-output. Disables the RCC of the peripheral when dropped.

DfsdmSplit2Ch1Flt

Produced by crate::dfsdm::Dfsdm::configure_pins. Its fields are private; consume it through [#name::build] so the pin sweep runs.

DfsdmSplit2Ch1FltBuilders

One crate::dfsdm::TransceiverBuilder per transceiver, handed to the closure of [#name::build]. Build the channels you use; leave the rest, and their pins deconfigure at the sweep. #[non_exhaustive] so callers can consume fields but cannot construct or exhaustively destructure it.

DfsdmSplit2Ch1FltFilters

The filter builders and detectors left after [#name::build] built the transceivers. #[non_exhaustive], so callers consume fields but cannot construct it.

DfsdmSplit4Ch2Flt

Produced by crate::dfsdm::Dfsdm::configure_pins. Its fields are private; consume it through [#name::build] so the pin sweep runs.

DfsdmSplit4Ch2FltBuilders

One crate::dfsdm::TransceiverBuilder per transceiver, handed to the closure of [#name::build]. Build the channels you use; leave the rest, and their pins deconfigure at the sweep. #[non_exhaustive] so callers can consume fields but cannot construct or exhaustively destructure it.

DfsdmSplit4Ch2FltFilters

The filter builders and detectors left after [#name::build] built the transceivers. #[non_exhaustive], so callers consume fields but cannot construct it.

DfsdmSplit4Ch4Flt

Produced by crate::dfsdm::Dfsdm::configure_pins. Its fields are private; consume it through [#name::build] so the pin sweep runs.

DfsdmSplit4Ch4FltBuilders

One crate::dfsdm::TransceiverBuilder per transceiver, handed to the closure of [#name::build]. Build the channels you use; leave the rest, and their pins deconfigure at the sweep. #[non_exhaustive] so callers can consume fields but cannot construct or exhaustively destructure it.

DfsdmSplit4Ch4FltFilters

The filter builders and detectors left after [#name::build] built the transceivers. #[non_exhaustive], so callers consume fields but cannot construct it.

DfsdmSplit8Ch4Flt

Produced by crate::dfsdm::Dfsdm::configure_pins. Its fields are private; consume it through [#name::build] so the pin sweep runs.

DfsdmSplit8Ch4FltBuilders

One crate::dfsdm::TransceiverBuilder per transceiver, handed to the closure of [#name::build]. Build the channels you use; leave the rest, and their pins deconfigure at the sweep. #[non_exhaustive] so callers can consume fields but cannot construct or exhaustively destructure it.

DfsdmSplit8Ch4FltFilters

The filter builders and detectors left after [#name::build] built the transceivers. #[non_exhaustive], so callers consume fields but cannot construct it.

DfsdmSplit8Ch6Flt

Produced by crate::dfsdm::Dfsdm::configure_pins. Its fields are private; consume it through [#name::build] so the pin sweep runs.

DfsdmSplit8Ch6FltBuilders

One crate::dfsdm::TransceiverBuilder per transceiver, handed to the closure of [#name::build]. Build the channels you use; leave the rest, and their pins deconfigure at the sweep. #[non_exhaustive] so callers can consume fields but cannot construct or exhaustively destructure it.

DfsdmSplit8Ch6FltFilters

The filter builders and detectors left after [#name::build] built the transceivers. #[non_exhaustive], so callers consume fields but cannot construct it.

DfsdmSplit8Ch8Flt

Produced by crate::dfsdm::Dfsdm::configure_pins. Its fields are private; consume it through [#name::build] so the pin sweep runs.

DfsdmSplit8Ch8FltBuilders

One crate::dfsdm::TransceiverBuilder per transceiver, handed to the closure of [#name::build]. Build the channels you use; leave the rest, and their pins deconfigure at the sweep. #[non_exhaustive] so callers can consume fields but cannot construct or exhaustively destructure it.

DfsdmSplit8Ch8FltFilters

The filter builders and detectors left after [#name::build] built the transceivers. #[non_exhaustive], so callers consume fields but cannot construct it.

Enums

Error

DFSDM error.