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/*
Copyright (c) 2015 Arduino LLC. All right reserved.
Copyright (c) 2016 Sandeep Mistry All right reserved.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
See the GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#pragma once
#include <stdint.h>
#ifdef __cplusplus
extern "C" {
#endif
/*
* \brief SAMD products have only one reference for ADC
*/
#if defined(NRF52) || defined(NRF52_SERIES)
typedef enum _eAnalogReference
{
AR_DEFAULT,
AR_INTERNAL, // 0.6V Ref * 6 = 0..3.6V
AR_INTERNAL_3_0, // 0.6V Ref * 5 = 0..3.0V
AR_INTERNAL_2_4, // 0.6V Ref * 4 = 0..2.4V
AR_INTERNAL_1_8, // 0.6V Ref * 3 = 0..1.8V
AR_INTERNAL_1_2, // 0.6V Ref * 2 = 0..1.6V
AR_VDD4 // VDD/4 REF * 4 = 0..VDD
} eAnalogReference ;
#else
typedef enum _eAnalogReference
{
AR_DEFAULT,
AR_VBG,
AR_SUPPLY_ONE_HALF,
AR_SUPPLY_ONE_THIRD,
AR_EXT0,
AR_EXT1
} eAnalogReference ;
#endif
/*
* \brief Configures the reference voltage used for analog input (i.e. the value used as the top of the input range).
* This function is kept only for compatibility with existing AVR based API.
*
* \param ulMmode Should be set to AR_DEFAULT.
*/
extern void analogReference( eAnalogReference ulMode ) ;
/*
* \brief Configures the oversampling amount used to sample analog input.
*
* \param ulOversampling Should be set to 1, 2, 4, 8, 16, 32, 64, 128 or 256.
*/
extern void analogOversampling( uint32_t ulOversampling );
/*
* \brief Writes an analog value (PWM wave) to a pin.
*
* \param ulPin
* \param ulValue
*/
extern void analogWrite( uint32_t ulPin, uint32_t ulValue ) ;
/*
* \brief Reads the value from the specified analog pin.
*
* \param ulPin
*
* \return Read value from selected pin, if no error.
*/
extern uint32_t analogRead( uint32_t ulPin ) ;
/*
* \brief Set the resolution of analogRead return values. Default is 10 bits (range from 0 to 1023).
*
* \param res
*/
extern void analogReadResolution(int res);
/*
* \brief Set the resolution of analogWrite parameters. Default is 8 bits (range from 0 to 255).
*
* \param res
*/
extern void analogWriteResolution(uint8_t res);
extern void analogOutputInit( void ) ;
#ifdef __cplusplus
}
#endif
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