CONFIG_DISPLAY_NRF_LED_MATRIX
LED matrix driven by GPIOs
Type: bool
Help
Enable driver for a LED matrix with rows and columns driven by
GPIOs. The driver allows setting one of 256 levels of brightness
(where 0 means off completely) for each of the LEDs independently.
Assignment of GPIOs to rows and columns and the mapping of those
to pixels are specified in properties of a "nordic,nrf-led-matrix"
compatible node in devicetree.
The driver uses one TIMER instance and, depending on what is set in
devicetree, one PWM instance or one or more GPIOTE and PPI channels
(the latter value depends on the chosen pixel group size - the number
of LEDs in one row that can be lit simultaneously).
Default
n
Symbols selected by this symbol
Kconfig definition
At <Zephyr>/drivers/display/Kconfig.nrf_led_matrix:6
Included via <Zephyr>/Kconfig:8 → <Zephyr>/Kconfig.zephyr:42 → <Zephyr>/drivers/Kconfig:74 → <Zephyr>/drivers/display/Kconfig:26
Menu path: (Top) → Device Drivers → Display Drivers
config DISPLAY_NRF_LED_MATRIX
bool "LED matrix driven by GPIOs"
default n
select NRFX_GPIOTE
select NRFX_PPI if HAS_HW_NRF_PPI
depends on SOC_FAMILY_NRF && DISPLAY
help
Enable driver for a LED matrix with rows and columns driven by
GPIOs. The driver allows setting one of 256 levels of brightness
(where 0 means off completely) for each of the LEDs independently.
Assignment of GPIOs to rows and columns and the mapping of those
to pixels are specified in properties of a "nordic,nrf-led-matrix"
compatible node in devicetree.
The driver uses one TIMER instance and, depending on what is set in
devicetree, one PWM instance or one or more GPIOTE and PPI channels
(the latter value depends on the chosen pixel group size - the number
of LEDs in one row that can be lit simultaneously).
(The ‘depends on’ condition includes propagated dependencies from ifs and menus.)