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/* ---------------------------------------------------------------------------- */
/* Atmel Microcontroller Software Support */
/* SAM Software Package License */
/* ---------------------------------------------------------------------------- */
/* Copyright (c) 2015, Atmel Corporation */
/* */
/* All rights reserved. */
/* */
/* Redistribution and use in source and binary forms, with or without */
/* modification, are permitted provided that the following condition is met: */
/* */
/* - Redistributions of source code must retain the above copyright notice, */
/* this list of conditions and the disclaimer below. */
/* */
/* Atmel's name may not be used to endorse or promote products derived from */
/* this software without specific prior written permission. */
/* */
/* DISCLAIMER: THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR */
/* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE */
/* DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR ANY DIRECT, INDIRECT, */
/* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT */
/* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, */
/* OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF */
/* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING */
/* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, */
/* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */
/* ---------------------------------------------------------------------------- */
/**
* \file
*
* \section Purpose
*
* Interface for configuration the Analog-to-Digital Converter (ADC) peripheral.
*
* \section Usage
*
* -# Configurate the pins for ADC.
* -# Initialize the ADC with ADC_Initialize().
* -# Set ADC clock and timing with ADC_SetClock() and ADC_SetTiming().
* -# Select the active channel using ADC_EnableChannel().
* -# Start the conversion with ADC_StartConversion().
* -# Wait the end of the conversion by polling status with ADC_GetStatus().
* -# Finally, get the converted data using ADC_GetConvertedData() or
* ADC_GetLastConvertedData().
*
*/
#ifndef _ADC_
#define _ADC_
/*----------------------------------------------------------------------------
* Headers
*----------------------------------------------------------------------------*/
#include <assert.h>
#include <stdint.h>
/*------------------------------------------------------------------------------
* Definitions
*------------------------------------------------------------------------------*/
/* Max. ADC Clock Frequency (Hz) */
#define ADC_CLOCK_MAX 20000000
/* Max. normal ADC startup time (us) */
#define ADC_STARTUP_NORMAL_MAX 40
/* Max. fast ADC startup time (us) */
#define ADC_STARTUP_FAST_MAX 12
/* Definitions for ADC channels */
#define ADC_CHANNEL_0 0
#define ADC_CHANNEL_1 1
#define ADC_CHANNEL_2 2
#define ADC_CHANNEL_3 3
#define ADC_CHANNEL_4 4
#define ADC_CHANNEL_5 5
#define ADC_CHANNEL_6 6
#define ADC_CHANNEL_7 7
#define ADC_CHANNEL_8 8
#define ADC_CHANNEL_9 9
#define ADC_CHANNEL_10 10
#define ADC_CHANNEL_11 11
#define ADC_CHANNEL_12 12
#define ADC_CHANNEL_13 13
#define ADC_CHANNEL_14 14
#define ADC_CHANNEL_15 15
#ifdef __cplusplus
extern "C" {
#endif
/*------------------------------------------------------------------------------
* Macros function of register access
*------------------------------------------------------------------------------*/
#define ADC_GetModeReg(pAdc) ((pAdc)->ADC_MR)
#define ADC_StartConversion(pAdc) ((pAdc)->ADC_CR = ADC_CR_START)
#define ADC_SetCalibMode(pAdc) ((pAdc)->ADC_CR |= ADC_CR_AUTOCAL)
#define ADC_EnableChannel(pAdc, dwChannel) {\
(pAdc)->ADC_CHER = (1 << (dwChannel));\
}
#define ADC_DisableChannel(pAdc, dwChannel) {\
(pAdc)->ADC_CHDR = (1 << (dwChannel));\
}
#define ADC_EnableIt(pAdc, dwMode) {\
(pAdc)->ADC_IER = (dwMode);\
}
#define ADC_DisableIt(pAdc, dwMode) {\
(pAdc)->ADC_IDR = (dwMode);\
}
#define ADC_SetChannelGain(pAdc,dwMode) {\
(pAdc)->ADC_CGR = dwMode;\
}
#define ADC_SetChannelOffset(pAdc,dwMode) {\
(pAdc)->ADC_COR = dwMode;\
}
#define ADC_EnableDataReadyIt(pAdc) ((pAdc)->ADC_IER = ADC_IER_DRDY)
#define ADC_GetStatus(pAdc) ((pAdc)->ADC_ISR)
#define ADC_GetCompareMode(pAdc) (((pAdc)->ADC_EMR)& (ADC_EMR_CMPMODE_Msk))
#define ADC_GetChannelStatus(pAdc) ((pAdc)->ADC_CHSR)
#define ADC_GetInterruptMaskStatus(pAdc) ((pAdc)->ADC_IMR)
#define ADC_GetLastConvertedData(pAdc) ((pAdc)->ADC_LCDR)
/*------------------------------------------------------------------------------
* Exported functions
*------------------------------------------------------------------------------*/
extern void ADC_Initialize(Adc *pAdc, uint32_t dwId);
extern uint32_t ADC_SetClock(Adc *pAdc, uint32_t dwPres, uint32_t dwMck);
extern void ADC_SetTiming(Adc *pAdc, uint32_t dwStartup, uint32_t dwTracking,
uint32_t dwSettling);
extern void ADC_SetTrigger(Adc *pAdc, uint32_t dwTrgSel);
extern void ADC_SetTriggerMode(Adc *pAdc, uint32_t dwMode);
extern void ADC_SetLowResolution(Adc *pAdc, uint32_t bEnDis);
extern void ADC_SetSleepMode(Adc *pAdc, uint8_t bEnDis);
extern void ADC_SetFastWakeup(Adc *pAdc, uint8_t bEnDis);
extern void ADC_SetSequenceMode(Adc *pAdc, uint8_t bEnDis);
extern void ADC_SetSequence(Adc *pAdc, uint32_t dwSEQ1, uint32_t dwSEQ2);
extern void ADC_SetSequenceByList(Adc *pAdc, uint8_t ucChList[],
uint8_t ucNumCh);
extern void ADC_SetAnalogChange(Adc *pAdc, uint8_t bEnDis);
extern void ADC_SetTagEnable(Adc *pAdc, uint8_t bEnDis);
extern void ADC_SetCompareChannel(Adc *pAdc, uint32_t dwChannel);
extern void ADC_SetCompareMode(Adc *pAdc, uint32_t dwMode);
extern void ADC_SetComparisonWindow(Adc *pAdc, uint32_t dwHi_Lo);
extern uint8_t ADC_CheckConfiguration(Adc *pAdc, uint32_t dwMcK);
extern uint32_t ADC_GetConvertedData(Adc *pAdc, uint32_t dwChannel);
extern void ADC_SetTsAverage(Adc *pADC, uint32_t dwAvg2Conv);
extern uint32_t ADC_GetTsXPosition(Adc *pADC);
extern uint32_t ADC_GetTsYPosition(Adc *pADC);
extern uint32_t ADC_GetTsPressure(Adc *pADC);
extern void ADC_SetTsDebounce(Adc *pADC, uint32_t dwTime);
extern void ADC_SetTsPenDetect(Adc *pADC, uint8_t bEnDis);
extern void ADC_SetStartupTime(Adc *pAdc, uint32_t dwUs);
extern void ADC_SetTrackingTime(Adc *pAdc, uint32_t dwNs);
extern void ADC_SetTriggerPeriod(Adc *pAdc, uint32_t dwPeriod);
extern void ADC_SetTsMode(Adc *pADC, uint32_t dwMode);
extern void ADC_TsCalibration(Adc *pAdc);
#ifdef __cplusplus
}
#endif
#endif /* #ifndef _ADC_ */
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