Robert Jördens 3165c680d6 dma: don't swap buffers ... * This uses a new closure-based method to the DMA HAL implementation which gives access to the inactive buffer directly. * It removes changing addresses, the third buffer for DBM, the inactive address poisoning, and allows the cancellation of the redundant repeat memory barriers and compiler fences. * This is now around 20 instructions per buffer down from about 100 cycles before. * Also introduces a new `SampleBuffer` type alias. * The required unpacking of the resources structure is a bit annoying but could probably abstraced away. TODO: * Test * Adapt `lockin`		2021-05-24 20:56:11 +02:00
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dual-iir.rs	dma: don't swap buffers	2021-05-24 20:56:11 +02:00
lockin.rs	dsp/lowpass,lockin: const generics	2021-05-10 17:31:53 +02:00