1 /* ----------------------------------------------------------------------------
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2 * SAM Software Package License
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3 * ----------------------------------------------------------------------------
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4 * Copyright (c) 2011, Atmel Corporation
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6 * All rights reserved.
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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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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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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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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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35 * Interface for configuration the Analog-to-Digital Converter (DACC) peripheral.
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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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50 /*----------------------------------------------------------------------------
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52 *----------------------------------------------------------------------------*/
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58 /*------------------------------------------------------------------------------
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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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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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75 #define DACC_GetModeReg(pDACC) ((pDACC)->DACC_MR)
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77 #define DACC_StartConversion(pDACC) ((pDACC)->DACC_CR = DACC_CR_START)
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79 #define DACC_SoftReset(pDACC) ((pDACC)->DACC_CR = DACC_CR_SWRST)
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81 #define DACC_EnableChannel(pDACC, channel) {\
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82 (pDACC)->DACC_CHER = (1 << (channel));\
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85 #define DACC_DisableChannel(pDACC, channel) {\
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86 (pDACC)->DACC_CHDR = (1 << (channel));\
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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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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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99 #define DACC_EnableDataReadyIt(pDACC) ((pDACC)->DACC_IER = AT91C_DACC_DRDY)
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101 #define DACC_GetStatus(pDACC) ((pDACC)->DACC_ISR)
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103 #define DACC_GetChannelStatus(pDACC) ((pDACC)->DACC_CHSR)
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105 #define DACC_GetInterruptMaskStatus(pDACC) ((pDACC)->DACC_IMR)
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107 #define DACC_GetLastConvertedData(pDACC) ((pDACC)->DACC_LCDR)
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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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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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119 #define DACC_GetAnalogCtrlReg(pDACC) ((pDACC)->DACC_ACR)
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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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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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138 extern void DACC_SetConversionData( Dacc* pDACC, uint32_t dwData ) ;
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140 extern uint32_t DACC_WriteBuffer( Dacc* pDACC, uint16_t* pwBuffer, uint32_t dwSize ) ;
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146 #endif /* #ifndef _DACC_ */
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