| 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 (DACC) 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 DACC
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| 40 | * -# Initialize the DACC with DACC_Initialize().
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| 41 | * -# Select the active channel using DACC_EnableChannel()
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| 42 | * -# Start the conversion with DACC_StartConversion()
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| 43 | * -# Wait the end of the conversion by polling status with DACC_GetStatus()
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| 44 | * -# Finally, get the converted data using DACC_GetConvertedData()
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| 45 | *
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| 46 | */
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| 47 | #ifndef _DACC_
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| 48 | #define _DACC_
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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 DACC_CHANNEL_0 0
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| 62 | #define DACC_CHANNEL_1 1
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| 63 |
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| 64 | #ifdef __cplusplus
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| 65 | extern "C" {
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| 66 | #endif
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| 67 |
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| 68 | /*------------------------------------------------------------------------------
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| 69 | * Macros function of register access
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| 70 | *------------------------------------------------------------------------------*/
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| 71 | #define DACC_CfgModeReg(pDACC, mode) { \
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| 72 | (pDACC)->DACC_MR = (mode);\
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| 73 | }
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| 74 |
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| 75 | #define DACC_GetModeReg(pDACC) ((pDACC)->DACC_MR)
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| 76 |
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| 77 | #define DACC_StartConversion(pDACC) ((pDACC)->DACC_CR = DACC_CR_START)
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| 78 |
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| 79 | #define DACC_SoftReset(pDACC) ((pDACC)->DACC_CR = DACC_CR_SWRST)
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| 80 |
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| 81 | #define DACC_EnableChannel(pDACC, channel) {\
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| 82 | (pDACC)->DACC_CHER = (1 << (channel));\
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| 83 | }
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| 84 |
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| 85 | #define DACC_DisableChannel(pDACC, channel) {\
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| 86 | (pDACC)->DACC_CHDR = (1 << (channel));\
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| 87 | }
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| 88 |
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| 89 | #define DACC_EnableIt(pDACC, mode) {\
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| 90 | assert( ((mode)&0xFFF00000)== 0 ) ;\
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| 91 | (pDACC)->DACC_IER = (mode);\
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| 92 | }
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| 93 |
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| 94 | #define DACC_DisableIt(pDACC, mode) {\
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| 95 | assert( ((mode)&0xFFF00000)== 0 ) ;\
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| 96 | (pDACC)->DACC_IDR = (mode);\
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| 97 | }
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| 98 |
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| 99 | #define DACC_EnableDataReadyIt(pDACC) ((pDACC)->DACC_IER = AT91C_DACC_DRDY)
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| 100 |
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| 101 | #define DACC_GetStatus(pDACC) ((pDACC)->DACC_ISR)
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| 102 |
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| 103 | #define DACC_GetChannelStatus(pDACC) ((pDACC)->DACC_CHSR)
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| 104 |
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| 105 | #define DACC_GetInterruptMaskStatus(pDACC) ((pDACC)->DACC_IMR)
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| 106 |
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| 107 | #define DACC_GetLastConvertedData(pDACC) ((pDACC)->DACC_LCDR)
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| 108 |
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| 109 | #define DACC_CfgAnalogCtrlReg(pDACC,mode) {\
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| 110 | assert( ((mode) & 0xFFFCFF3C)==0 ) ;\
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| 111 | (pDACC)->DACC_ACR = (mode);\
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| 112 | }
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| 113 |
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| 114 | #define DACC_CfgExtModeReg(pDACC, extmode) {\
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| 115 | assert( ((extmode) & 0xFF00FFFE)==0 ) ;\
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| 116 | (pDACC)->DACC_EMR = (extmode);\
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| 117 | }
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| 118 |
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| 119 | #define DACC_GetAnalogCtrlReg(pDACC) ((pDACC)->DACC_ACR)
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| 120 |
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| 121 | /*------------------------------------------------------------------------------
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| 122 | * Exported functions
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| 123 | *------------------------------------------------------------------------------*/
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| 124 | extern void DACC_Initialize( Dacc* pDACC,
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| 125 | uint8_t idDACC,
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| 126 | uint8_t trgEn,
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| 127 | uint8_t trgSel,
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| 128 | uint8_t word,
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| 129 | uint8_t sleepMode,
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| 130 | uint32_t mck,
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| 131 | uint8_t refresh,/*refresh period*/
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| 132 | uint8_t user_sel,/*user channel selection*/
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| 133 | uint32_t tag_mode,/*using tag for channel number*/
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| 134 | uint32_t startup
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| 135 | );
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| 136 |
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| 137 |
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| 138 | extern void DACC_SetConversionData( Dacc* pDACC, uint32_t dwData ) ;
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| 139 |
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| 140 | extern uint32_t DACC_WriteBuffer( Dacc* pDACC, uint16_t* pwBuffer, uint32_t dwSize ) ;
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| 141 |
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| 142 | #ifdef __cplusplus
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| 143 | }
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| 144 | #endif
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| 145 |
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| 146 | #endif /* #ifndef _DACC_ */
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