LED Driver#

Generic LED Driver.

Introduction#

The LED driver is a platfom level software module that manages the control of various types of LEDs. There are currently two types of LEDs supported by the LED driver:

• Simple LED Driver

• simple_rgbw_pwm_led

The common LED functions are called through the generic LED driver, while other functions specific to a certain type of LED are called directly through their own driver.

Configuration#

All LED instances are configured with an sl_led_t struct and a type specific context struct, and sometimes additional structs. There is also a typedef sl_led_state_t to get the state of an LED. These structs are automatically generated after an LED is set up using Simplicity Studio's wizard, along with a function definition for initializing all LEDs of that type. Specific setups for the various LED types are in the following sections.

• Simple LED Configuration

• RGBW PWM LED Configuration

Usage#

Once the LED structs are defined, the common LED functions can be called being passed an instance of sl_led_t, which will be redirected to calling the type specific version of that function. The common functions include the following:

• sl_led_init

• sl_led_turn_on

• sl_led_turn_off

• sl_led_toggle

• sl_led_get_state

These functions allow for initializing the LED, turning it on and off, toggling it, and getting the current on/off state of it. Other functions are called through the specific type of LED's API directly. The usages of the different types of LEDs are described in detail in the following sections.

• Simple LED Usage

• rgbw_led_usage

Modules#

sl_led_t

Simple LED Driver

Simple RGB PWM LED Driver

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