pimoroni-pico/libraries/plasma2040/apa102.pio

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;
; Copyright (c) 2020 Raspberry Pi (Trading) Ltd.
;
; SPDX-License-Identifier: BSD-3-Clause
;
.program apa102
.side_set 1
out pins, 1 side 0 ; Stall here when no data (still asserts clock low)
nop side 1