rp2350 Directory Reference

Files
	tone_cap.c
	The phase tap's capture.
	tone_cap.h
	The phase tap's capture: one PIO (programmable input/output) state machine on one input pin (tone_cap.pio) and a DMA (direct memory access) channel that collects its words in a ring of TONE_RING_WORDS words, endlessly, with the write address wrapping on the ring.