| /* |
| * Copyright (c) 2021 Seagate Technology LLC |
| * |
| * SPDX-License-Identifier: Apache-2.0 |
| */ |
| |
| #ifndef ZEPHYR_SAMPLES_DRIVERS_LED_WS2812_F070RB_BINDINGS_H |
| #define ZEPHYR_SAMPLES_DRIVERS_LED_WS2812_F070RB_BINDINGS_H |
| |
| /* |
| * Everlight B1414 LED controller; |
| * |
| * Each bit of the control signal (waveform) is described with a 1.2 us pulse: |
| * 0 bit: 300 ns high and 900 ns low. |
| * 1 bit: 900 ns high and 300 ns low. |
| * |
| * At 6 MHz, one bit represents 166.666 ns. |
| * 1200 ns -> 7.2 bits |
| * 300 ns -> 1.8 bits |
| * 900 ns -> 5.4 bits |
| */ |
| #define B1414_SPI_FREQ 6000000 |
| #define B1414_ZERO_FRAME 0x60 |
| #define B1414_ONE_FRAME 0x7C |
| |
| #endif |
