kRpPioRxClockHz

u32 fl::kRpPioRxClockHz = 20000000u

constexpr

After synchronizing to the first rising edge the PIO runs one IN PINS instruction per cycle, so 20 MHz gives 50 ns samples – enough to separate WS2812 timing phases without losing the first phase to counter setup.

Definition at line 30 of file pio_geometry.h.