Searched +full:delay +full:- +full:t1h (Results 1 – 2 of 2) sorted by relevance
| /Zephyr-latest/dts/bindings/led_strip/ |
| D | worldsemi,ws2812-gpio.yaml | 2 # SPDX-License-Identifier: Apache-2.0
7 Driver bindings for bit-banging a WS2812 or compatible LED strip.
11 or can be provided by setting the delay-txx properties in the device
17 type of LEDs used, consult the data-sheet for the precise timings.
20 +-------+ +---
24 ---+ +-----------------+
27 +---------------+ +---
29 | T1H | T1L |
31 ---+ +---------+
38 clock-frequency = <64000000>;
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| /Zephyr-latest/drivers/led_strip/ |
| D | Kconfig.ws2812 | 4 # SPDX-License-Identifier: Apache-2.0
8 # https://wp.josh.com/2014/05/13/ws2812-neopixels-are-not-so-finicky-once-you-get-to-know-them/
29 delay. The reset delay has a coarse resolution of ~20us.
33 # Only an Cortex-M inline assembly implementation for the nRF91, nRF51,
41 controlling with GPIO. The GPIO driver does bit-banging with inline
49 DT_CHOSEN_LED_STRIP := zephyr,led-strip
53 int "Delay 1 bit high pulse"
54 default $(dt_node_int_prop_int,$(DT_CHOSEN_LED_STRIP_PATH),delay-t1h) \
55 if $(dt_node_has_prop,$(DT_CHOSEN_LED_STRIP_PATH),delay-t1h)
56 default $(div,$(mul,700,$(dt_node_int_prop_int,/cpus/cpu@0,clock-frequency)),1000000000) \
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