/* ---------------------------------------------------------------------------- | |
* ATMEL Microcontroller Software Support | |
* ---------------------------------------------------------------------------- | |
* Copyright (c) 2009, Atmel Corporation | |
* | |
* All rights reserved. | |
* | |
* Redistribution and use in source and binary forms, with or without | |
* modification, are permitted provided that the following conditions are 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 | |
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, | |
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* ---------------------------------------------------------------------------- | |
*/ | |
/** | |
* \file | |
* | |
* \section Purpose | |
* | |
* Interface for configuration the Analog-to-Digital Converter (ACC) peripheral. | |
* | |
* \section Usage | |
* | |
* -# Configurate the pins for ACC | |
* -# Initialize the ACC with ACC_Initialize(). | |
* -# Select the active channel using ACC_EnableChannel() | |
* -# Start the conversion with ACC_StartConversion() | |
* -# Wait the end of the conversion by polling status with ACC_GetStatus() | |
* -# Finally, get the converted data using ACC_GetConvertedData() | |
* | |
*/ | |
#ifndef _ACC_ | |
#define _ACC_ | |
/*---------------------------------------------------------------------------- | |
* Headers | |
*----------------------------------------------------------------------------*/ | |
#include "chip.h" | |
#include <stdint.h> | |
#include <assert.h> | |
/*------------------------------------------------------------------------------ | |
* Definitions | |
*------------------------------------------------------------------------------*/ | |
#define ACC_SELPLUS_AD12B0 0 | |
#define ACC_SELPLUS_AD12B1 1 | |
#define ACC_SELPLUS_AD12B2 2 | |
#define ACC_SELPLUS_AD12B3 3 | |
#define ACC_SELPLUS_AD12B4 4 | |
#define ACC_SELPLUS_AD12B5 5 | |
#define ACC_SELPLUS_AD12B6 6 | |
#define ACC_SELPLUS_AD12B7 7 | |
#define ACC_SELMINUS_TS 0 | |
#define ACC_SELMINUS_ADVREF 1 | |
#define ACC_SELMINUS_DAC0 2 | |
#define ACC_SELMINUS_DAC1 3 | |
#define ACC_SELMINUS_AD12B0 4 | |
#define ACC_SELMINUS_AD12B1 5 | |
#define ACC_SELMINUS_AD12B2 6 | |
#define ACC_SELMINUS_AD12B3 7 | |
#ifdef __cplusplus | |
extern "C" { | |
#endif | |
/*------------------------------------------------------------------------------ | |
* Macros function of register access | |
*------------------------------------------------------------------------------*/ | |
#define ACC_CfgModeReg(pAcc, mode) { \ | |
(pAcc)->ACC_MR = (mode);\ | |
} | |
#define ACC_GetModeReg( pAcc ) ((pAcc)->ACC_MR) | |
#define ACC_StartConversion( pAcc ) ((pAcc)->ACC_CR = ACC_CR_START) | |
#define ACC_SoftReset( pAcc ) ((pAcc)->ACC_CR = ACC_CR_SWRST) | |
#define ACC_EnableChannel( pAcc, dwChannel ) {\ | |
assert( dwChannel < 16 ) ;\ | |
(pAcc)->ACC_CHER = (1 << (dwChannel));\ | |
} | |
#define ACC_DisableChannel( pAcc, dwChannel ) {\ | |
assert( dwChannel < 16 ) ;\ | |
(pAcc)->ACC_CHDR = (1 << (dwChannel));\ | |
} | |
#define ACC_EnableIt( pAcc, dwMode ) {\ | |
assert( ((dwMode)&0xFFF00000)== 0 ) ;\ | |
(pAcc)->ACC_IER = (dwMode);\ | |
} | |
#define ACC_DisableIt( pAcc, dwMode ) {\ | |
assert( ((dwMode)&0xFFF00000)== 0 ) ;\ | |
(pAcc)->ACC_IDR = (dwMode);\ | |
} | |
#define ACC_EnableDataReadyIt( pAcc ) ((pAcc)->ACC_IER = AT91C_ACC_DRDY) | |
#define ACC_GetStatus( pAcc ) ((pAcc)->ACC_ISR) | |
#define ACC_GetChannelStatus( pAcc ) ((pAcc)->ACC_CHSR) | |
#define ACC_GetInterruptMaskStatus( pAcc ) ((pAcc)->ACC_IMR) | |
#define ACC_GetLastConvertedData( pAcc ) ((pAcc)->ACC_LCDR) | |
#define ACC_CfgAnalogCtrlReg( pAcc, dwMode ) {\ | |
assert( ((dwMode) & 0xFFFCFF3C) == 0 ) ;\ | |
(pAcc)->ACC_ACR = (dwMode);\ | |
} | |
#define ACC_CfgExtModeReg( pAcc, extmode ) {\ | |
assert( ((extmode) & 0xFF00FFFE) == 0 ) ;\ | |
(pAcc)->ACC_EMR = (extmode);\ | |
} | |
#define ACC_GetAnalogCtrlReg( pAcc ) ((pAcc)->ACC_ACR) | |
/*------------------------------------------------------------------------------ | |
* Exported functions | |
*------------------------------------------------------------------------------*/ | |
extern void ACC_Configure( Acc *pAcc, uint8_t idAcc, uint8_t ucSelplus, uint8_t ucSelminus, | |
uint16_t wAc_en, uint16_t wEdge, uint16_t wInvert ) ; | |
extern void ACC_SetComparisionPair( Acc *pAcc, uint8_t ucSelplus, uint8_t ucSelminus ) ; | |
extern uint32_t ACC_GetComparisionResult( Acc* pAcc, uint32_t dwStatus ) ; | |
#ifdef __cplusplus | |
} | |
#endif | |
#endif /* #ifndef _ACC_ */ |