Christina Quast | 637ace9 | 2014-11-28 13:28:37 +0100 | [diff] [blame^] | 1 | /* ----------------------------------------------------------------------------
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| 2 | * ATMEL Microcontroller Software Support
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| 3 | * ----------------------------------------------------------------------------
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| 4 | * Copyright (c) 2009, Atmel Corporation
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| 5 | *
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| 6 | * All rights reserved.
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| 7 | *
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| 8 | * Redistribution and use in source and binary forms, with or without
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| 9 | * modification, are permitted provided that the following conditions are met:
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| 10 | *
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| 11 | * - Redistributions of source code must retain the above copyright notice,
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| 12 | * this list of conditions and the disclaimer below.
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| 13 | *
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| 14 | * Atmel's name may not be used to endorse or promote products derived from
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| 15 | * this software without specific prior written permission.
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| 16 | *
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| 17 | * DISCLAIMER: THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR
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| 18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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| 19 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE
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| 20 | * DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR ANY DIRECT, INDIRECT,
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| 21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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| 22 | * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
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| 23 | * OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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| 24 | * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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| 25 | * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
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| 26 | * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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| 27 | * ----------------------------------------------------------------------------
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| 28 | */
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| 29 |
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| 30 | /**
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| 31 | * \file
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| 32 | *
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| 33 | * \section Purpose
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| 34 | *
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| 35 | * Interface for configuration the Analog-to-Digital Converter (ACC) peripheral.
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| 36 | *
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| 37 | * \section Usage
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| 38 | *
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| 39 | * -# Configurate the pins for ACC
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| 40 | * -# Initialize the ACC with ACC_Initialize().
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| 41 | * -# Select the active channel using ACC_EnableChannel()
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| 42 | * -# Start the conversion with ACC_StartConversion()
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| 43 | * -# Wait the end of the conversion by polling status with ACC_GetStatus()
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| 44 | * -# Finally, get the converted data using ACC_GetConvertedData()
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| 45 | *
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| 46 | */
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| 47 | #ifndef _ACC_
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| 48 | #define _ACC_
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| 49 |
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| 50 | /*----------------------------------------------------------------------------
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| 51 | * Headers
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| 52 | *----------------------------------------------------------------------------*/
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| 53 | #include "chip.h"
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| 54 |
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| 55 | #include <stdint.h>
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| 56 | #include <assert.h>
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| 57 |
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| 58 | /*------------------------------------------------------------------------------
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| 59 | * Definitions
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| 60 | *------------------------------------------------------------------------------*/
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| 61 | #define ACC_SELPLUS_AD12B0 0
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| 62 | #define ACC_SELPLUS_AD12B1 1
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| 63 | #define ACC_SELPLUS_AD12B2 2
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| 64 | #define ACC_SELPLUS_AD12B3 3
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| 65 | #define ACC_SELPLUS_AD12B4 4
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| 66 | #define ACC_SELPLUS_AD12B5 5
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| 67 | #define ACC_SELPLUS_AD12B6 6
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| 68 | #define ACC_SELPLUS_AD12B7 7
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| 69 | #define ACC_SELMINUS_TS 0
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| 70 | #define ACC_SELMINUS_ADVREF 1
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| 71 | #define ACC_SELMINUS_DAC0 2
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| 72 | #define ACC_SELMINUS_DAC1 3
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| 73 | #define ACC_SELMINUS_AD12B0 4
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| 74 | #define ACC_SELMINUS_AD12B1 5
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| 75 | #define ACC_SELMINUS_AD12B2 6
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| 76 | #define ACC_SELMINUS_AD12B3 7
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| 77 |
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| 78 | #ifdef __cplusplus
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| 79 | extern "C" {
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| 80 | #endif
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| 81 |
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| 82 | /*------------------------------------------------------------------------------
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| 83 | * Macros function of register access
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| 84 | *------------------------------------------------------------------------------*/
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| 85 | #define ACC_CfgModeReg(pAcc, mode) { \
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| 86 | (pAcc)->ACC_MR = (mode);\
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| 87 | }
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| 88 |
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| 89 | #define ACC_GetModeReg( pAcc ) ((pAcc)->ACC_MR)
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| 90 |
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| 91 | #define ACC_StartConversion( pAcc ) ((pAcc)->ACC_CR = ACC_CR_START)
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| 92 |
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| 93 | #define ACC_SoftReset( pAcc ) ((pAcc)->ACC_CR = ACC_CR_SWRST)
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| 94 |
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| 95 | #define ACC_EnableChannel( pAcc, dwChannel ) {\
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| 96 | assert( dwChannel < 16 ) ;\
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| 97 | (pAcc)->ACC_CHER = (1 << (dwChannel));\
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| 98 | }
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| 99 |
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| 100 | #define ACC_DisableChannel( pAcc, dwChannel ) {\
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| 101 | assert( dwChannel < 16 ) ;\
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| 102 | (pAcc)->ACC_CHDR = (1 << (dwChannel));\
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| 103 | }
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| 104 |
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| 105 | #define ACC_EnableIt( pAcc, dwMode ) {\
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| 106 | assert( ((dwMode)&0xFFF00000)== 0 ) ;\
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| 107 | (pAcc)->ACC_IER = (dwMode);\
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| 108 | }
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| 109 |
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| 110 | #define ACC_DisableIt( pAcc, dwMode ) {\
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| 111 | assert( ((dwMode)&0xFFF00000)== 0 ) ;\
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| 112 | (pAcc)->ACC_IDR = (dwMode);\
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| 113 | }
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| 114 |
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| 115 | #define ACC_EnableDataReadyIt( pAcc ) ((pAcc)->ACC_IER = AT91C_ACC_DRDY)
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| 116 |
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| 117 | #define ACC_GetStatus( pAcc ) ((pAcc)->ACC_ISR)
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| 118 |
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| 119 | #define ACC_GetChannelStatus( pAcc ) ((pAcc)->ACC_CHSR)
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| 120 |
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| 121 | #define ACC_GetInterruptMaskStatus( pAcc ) ((pAcc)->ACC_IMR)
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| 122 |
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| 123 | #define ACC_GetLastConvertedData( pAcc ) ((pAcc)->ACC_LCDR)
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| 124 |
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| 125 | #define ACC_CfgAnalogCtrlReg( pAcc, dwMode ) {\
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| 126 | assert( ((dwMode) & 0xFFFCFF3C) == 0 ) ;\
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| 127 | (pAcc)->ACC_ACR = (dwMode);\
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| 128 | }
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| 129 |
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| 130 | #define ACC_CfgExtModeReg( pAcc, extmode ) {\
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| 131 | assert( ((extmode) & 0xFF00FFFE) == 0 ) ;\
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| 132 | (pAcc)->ACC_EMR = (extmode);\
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| 133 | }
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| 134 |
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| 135 | #define ACC_GetAnalogCtrlReg( pAcc ) ((pAcc)->ACC_ACR)
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| 136 |
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| 137 | /*------------------------------------------------------------------------------
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| 138 | * Exported functions
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| 139 | *------------------------------------------------------------------------------*/
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| 140 | extern void ACC_Configure( Acc *pAcc, uint8_t idAcc, uint8_t ucSelplus, uint8_t ucSelminus,
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| 141 | uint16_t wAc_en, uint16_t wEdge, uint16_t wInvert ) ;
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| 142 |
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| 143 | extern void ACC_SetComparisionPair( Acc *pAcc, uint8_t ucSelplus, uint8_t ucSelminus ) ;
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| 144 |
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| 145 | extern uint32_t ACC_GetComparisionResult( Acc* pAcc, uint32_t dwStatus ) ;
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| 146 |
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| 147 | #ifdef __cplusplus
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| 148 | }
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| 149 | #endif
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| 150 |
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| 151 | #endif /* #ifndef _ACC_ */
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