LED Control

Overview

This module provides the functions to control the FRDM-KW40Z board LED functionality.

The available actions are:

• Initialize the LED module
• Turn the LEDs On/Off
• Toggle the LEDs

Files
file	led_control.h

Macros
#define	LED_CONTROL_NUMBER_OF_LEDS

Enumerations
enum	led_control_status_t { kStatusOk, kStatusLedNumberOutOfRange, kStatusInvalidCommand, kStatusUnexpectedError }
enum	led_control_command_t { kLedControlOff, kLedControlOn, kLedControlToggle, kLedControlInvalidCommand }

Functions
void	led_control_init (void)
led_control_status_t	led_control_update_led (uint8_t ledNumber, led_control_command_t command)

Macro Definition Documentation

#define LED_CONTROL_NUMBER_OF_LEDS

Number of LEDs on the board.

Enumeration Type Documentation

enum led_control_status_t

Enumeration of all possible return status for the LED Control functions.

Enumerator
kStatusOk	No errors.
kStatusLedNumberOutOfRange	LED number is out of range.
kStatusInvalidCommand	Invalid Command.
kStatusUnexpectedError	Unexpected error.

enum led_control_command_t

Enumeration of all available commands.

Enumerator
kLedControlOff	Turn off the LED.
kLedControlOn	Turn on the LED.
kLedControlToggle	Toggle the LED.
kLedControlInvalidCommand	Invalid command.

Function Documentation

void led_control_init

(

void

)

---

Initializes all hardware required for the LED control

Parameters

[in]

Void

Returns

Void

led_control_status_t led_control_update_led	(	uint8_t	ledNumber,
		led_control_command_t	command
	)

---

Updates the LED with the provided data

Parameters

[in]	ledNumber	The number of LEDs to update
[in]	command	The action to apply

Returns

led_control_status_t Error status for the operation.