e2fd1fdd84
The WS2812 is very common in LED strips as it is an integrated controller and LED. It is driven by a single data line, but the timing requirements can be met by using most SPI controllers and the use of DMA. This driver has been validated on the nRF52 arch both with a single LED and a strip of 144. Signed-off-by: Brennan Ashton <bashton@brennanashton.com>
108 lines
2.6 KiB
Plaintext
108 lines
2.6 KiB
Plaintext
#
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# For a description of the syntax of this configuration file,
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# see the file kconfig-language.txt in the NuttX tools repository.
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#
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menu "LED Support"
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config USERLED
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bool "LED driver"
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default n
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---help---
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Enable standard user LED upper half driver.
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if USERLED
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config USERLED_LOWER
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bool "Generic Lower Half LED Driver"
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default n
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depends on ARCH_HAVE_LEDS
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---help---
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If the board supports the standard LED interfaces as
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defined in include/nuttx/board.h header file, then this
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standard LED lower half driver might be usable.
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In order for this generic driver to be usable:
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1. The board implementation must provide the LED
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interfaces as defined in include/nuttx/board.h
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If your board does not meet these requirements, then the
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userled_lower.c file can still be copied to your your
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board src/ directory and modified for your specific board
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requirements.
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endif # USERLED
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config LEDS_APA102
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bool "APA102 LED Strip"
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default n
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select SPI
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---help---
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Enable support for the APA102 LED Strip driver.
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config LEDS_MAX7219
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bool "MAX7219 Numeric Display"
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default n
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select SPI
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---help---
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Enable support for the MAX7219 to control 7-segment displays.
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config RGBLED
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bool "RGB LED Driver Support"
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default n
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---help---
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This selection enables building of the "upper-half" RGB LED driver.
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See include/nuttx/rgbled.h for further PWM driver information.
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config RGBLED_INVERT
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bool "Invert RGB LED Output"
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depends on RGBLED
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default n
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---help---
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If the board has a common anode RGB LED (a LOW output turns ON
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each LED), this selection inverts the outputs so that the
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colors are displayed correctly.
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config RGBLED_LIGHTNESS_CORRECTION
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bool "Apply Lightness Correction"
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depends on RGBLED
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default n
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---help---
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This selection enables an approximate CIE 1931 lightness
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correction which helps the RGB LED visually fade and blend
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in a more linear, smooth, and visually appealing fashion.
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config PCA9635PW
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bool "PCA9635PW I2C LED Driver"
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default n
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select I2C
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---help---
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Enable support for the NXP PCA9635PW LED driver which can be
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utilized to drive up to 16 LED's.
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config NCP5623C
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bool "NCP5623C I2C LED Driver"
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default n
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select I2C
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---help---
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Enable support for the onsemi NCP5623C LED driver which can be
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utilized to drive up to 3 LED's.
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config WS2812
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bool "WS2812 LED Driver"
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default n
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select SPI
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---help---
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Enable support for the Worldsemi WS2812 LED driver which commonly
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found in LED strips.
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NOTE: This device is a one wire device and has no CS or RESET
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line it must have exclusive use of the bus!
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config WS2812_FREQUENCY
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int "WS2812 LED Driver SPI Frequency"
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default 8000000
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depends on WS2812
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endmenu # LED Support
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