mirror of
https://github.com/arduino/Arduino.git
synced 2024-12-03 14:24:15 +01:00
152 lines
5.3 KiB
C
152 lines
5.3 KiB
C
/* ----------------------------------------------------------------------------
|
|
* 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
|
|
* 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 (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_ */
|