58 lines
1.6 KiB
C
58 lines
1.6 KiB
C
/** @file hal/micro/led.h
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* @brief Header for led APIs
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*
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* <!--(C) COPYRIGHT 2010 STMicroelectronics. All rights reserved. -->
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*/
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/** @addtogroup led
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* @brief Sample API funtions for controlling LEDs.
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*
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* When specifying an LED to use, always use the BOARDLEDx definitions that
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* are defined within the BOARD_HEADER.
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*
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* See led.h for source code.
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*@{
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*/
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/** @brief Configures GPIOs pertaining to the control of LEDs.
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*/
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void halInitLed(void);
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/** @brief Ensures that the definitions from the BOARD_HEADER
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* are always used as parameters to the LED functions.
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*/
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typedef int8u HalBoardLed;
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// Note: Even though many compilers will use 16 bits for an enum instead of 8,
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// we choose to use an enum here. The possible compiler inefficiency does not
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// affect stack-based parameters and local variables, which is the
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// general case for led paramters.
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/** @brief Atomically wraps an XOR or similar operation for a single GPIO
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* pin attached to an LED.
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*
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* @param led Identifier (from BOARD_HEADER) for the LED to be toggled.
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*/
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void halToggleLed(HalBoardLed led);
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/** @brief Turns on (sets) a GPIO pin connected to an LED so that the LED
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* turns on.
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*
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* @param led Identifier (from BOARD_HEADER) for the LED to turn on.
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*/
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void halSetLed(HalBoardLed led);
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/** @brief Turns off (clears) a GPIO pin connected to an LED, which turns
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* off the LED.
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*
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* @param led Identifier (from BOARD_HEADER) for the LED to turn off.
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*/
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void halClearLed(HalBoardLed led);
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#ifdef CORTEXM3_STM32F103
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#include "micro/cortexm3/stm32f103ret/led-specific.h"
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#endif
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/** @} // END addtogroup
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*/
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