52 lines
1.9 KiB
C
52 lines
1.9 KiB
C
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/************************************************************************//**
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* \file ext_led.h
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* \brief Function to use the extension LEDs
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* \author pascal (dot) sartoretti (at) hevs (dot) ch
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***************************************************************************/
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#ifndef __EXT_LED_H
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#define __EXT_LED_H
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#include <stdint.h>
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#define LIGHTNESS_PWM_STEP 100
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/************************************************************************//**
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* \brief Inits the external Leds usage.
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* \return Always #0
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***************************************************************************/
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extern int32_t Ext_LED_Init (void);
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/************************************************************************//**
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* \brief Turn on one led.
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* \param num The led to turn on (1,2,4,8)
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* \return Always 0
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***************************************************************************/
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extern int32_t Ext_LED_On (uint32_t num);
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/************************************************************************//**
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* \brief Turn off one led.
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* \param num The led to turn off (1,2,4,8)
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* \return Always 0
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***************************************************************************/
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extern int32_t Ext_LED_Off (uint32_t num);
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/************************************************************************//**
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* \brief Set a power on a led.
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* \param num The led to turn set the power (1,2,4,8)
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* \param duty The power of the led (0 to 255)
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* \return Always 0
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***************************************************************************/
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extern int32_t Ext_LED_PWM (uint32_t num, uint32_t duty);
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/************************************************************************//**
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* \brief Set the state on all leds.
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* \param val The binary state of the four leds (example 0b1101).
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* \return Always 0
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***************************************************************************/
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extern int32_t Ext_LEDs(uint32_t val);
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#endif /* __BOARD_LED_H */
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