Module hal 

Structs

DmaDoubleBuffer

Double-buffer ping-pong manager for DMA audio streaming.

DutyBuffer

In-memory duty buffer for DMA (no hardware attached).

Traits

PwmDutySink

Driver hook: apply one duty compare value per audio sample tick.

Functions

fill_buffer_into

Fill buf via the engine and write each duty to the sink (DMA kick-off helper).

fill_dma_half_buffers

Double-buffer DMA helper to fill half-buffer callbacks (e.g. Embassy / STM32 DMA ISR).

tick_into

Run one engine tick and push duty to the sink.