led.h File Reference

#include <stdint.h>

Go to the source code of this file.

Functions
uint32_t	LED_Configure (uint32_t dwLed)
uint32_t	LED_Set (uint32_t dwLed)
uint32_t	LED_Clear (uint32_t dwLed)
uint32_t	LED_Toggle (uint32_t dwLed)

Detailed Description

Purpose

Small set of functions for simple and portable LED usage.

Usage

1. Configure one or more LEDs using LED_Configure and LED_ConfigureAll.
2. Set, clear and toggle LEDs using LED_Set, LED_Clear and LED_Toggle.

LEDs are numbered starting from 0; the number of LEDs depend on the board being used. All the functions defined here will compile properly regardless of whether the LED is defined or not; they will simply return 0 when a LED which does not exist is given as an argument. Also, these functions take into account how each LED is connected on to board; thus, LED_Set might change the level on the corresponding pin to 0 or 1, but it will always light the LED on; same thing for the other methods.