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* fake siren works * this receives something * microphone in SAI1 POC * this receives audio again * double buffer DMA? * RX DMA works * wip * needs cleanup, but this plays * cleanup of playback * print mic * deal with stereo in * the DMA from SAI1 -> SAI4 doesn't work yet * this puts mic data in a buf * this gets sound to the 845 * wip: still garbage from the mic * inefficient, but it does record the mic * sine isn't used * comment out mic for now * fix misra * remove mic * more cleanup * add amp enable/disable * no more debug * newline --------- Co-authored-by: Comma Device <device@comma.ai>