Sample API funtions for controlling LEDs. More...

Typedefs
typedef int8u	HalBoardLed
	Ensures that the definitions from the BOARD_HEADER are always used as parameters to the LED functions.

Functions
void	halInitLed (void)
	Configures GPIOs pertaining to the control of LEDs.

void	halToggleLed (HalBoardLed led)
	Atomically wraps an XOR or similar operation for a single GPIO pin attached to an LED. More...

void	halSetLed (HalBoardLed led)
	Turns on (sets) a GPIO pin connected to an LED so that the LED turns on. More...

void	halClearLed (HalBoardLed led)
	Turns off (clears) a GPIO pin connected to an LED, which turns off the LED. More...

Detailed Description

Sample API funtions for controlling LEDs.

When specifying an LED to use, always use the BOARDLEDx definitions that are defined within the BOARD_HEADER.

See led.h for source code.

Function Documentation

void halClearLed ( HalBoardLed led )

Turns off (clears) a GPIO pin connected to an LED, which turns off the LED.

Parameters

led	Identifier (from BOARD_HEADER) for the LED to turn off.

Definition at line 28 of file led.c.

Referenced by halInitLed().

void halSetLed ( HalBoardLed led )

Turns on (sets) a GPIO pin connected to an LED so that the LED turns on.

Parameters

led	Identifier (from BOARD_HEADER) for the LED to turn on.

Definition at line 23 of file led.c.

void halToggleLed ( HalBoardLed led )

Atomically wraps an XOR or similar operation for a single GPIO pin attached to an LED.

Parameters

led	Identifier (from BOARD_HEADER) for the LED to be toggled.

Definition at line 33 of file led.c.

References ATOMIC, and BIT.