Control on-board LEDs

Access macros to control the on-board LEDs. More...

Detailed Description

Access macros to control the on-board LEDs.

This header contains a set of macros for controlling the on-board LEDs of a board. The LEDs are enumerated, starting from LED0 to LED7. As most platforms have a different number of LEDs, the existing ones are mapped onto the lowest LED numbers, while the higher LED numbers will simply be empty defines. This ensures, that the LED macros are portable to any platform with any number of LEDs.

Providing access macros to 8 LEDs is a random decision, as currently 8 is the maximum number of on-board LEDs found on any board in RIOT (stm32f3discovery).

Files
file	led.h
	Macros for controlling the on-board LEDs.

LED fallback macros
#define	LED0_ON
	defined empty
#define	LED0_OFF
	defined empty
#define	LED0_TOGGLE
	defined empty
#define	LED1_ON
	defined empty
#define	LED1_OFF
	defined empty
#define	LED1_TOGGLE
	defined empty
#define	LED2_ON
	defined empty
#define	LED2_OFF
	defined empty
#define	LED2_TOGGLE
	defined empty
#define	LED3_ON
	defined empty
#define	LED3_OFF
	defined empty
#define	LED3_TOGGLE
	defined empty
#define	LED4_ON
	defined empty
#define	LED4_OFF
	defined empty
#define	LED4_TOGGLE
	defined empty
#define	LED5_ON
	defined empty
#define	LED5_OFF
	defined empty
#define	LED5_TOGGLE
	defined empty
#define	LED6_ON
	defined empty
#define	LED6_OFF
	defined empty
#define	LED6_TOGGLE
	defined empty
#define	LED7_ON
	defined empty
#define	LED7_OFF
	defined empty
#define	LED7_TOGGLE
	defined empty

Convenience LED control macros
#define	LED_ON(x)   LED ## x ##_ON
	Turn on led x.
#define	LED_OFF(x)   LED ## x ## _OFF
	Turn off led x.
#define	LED_TOGGLE(x)   LED ## x ##_TOGGLE
	Toggle led x.