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 (ACC) peripheral.
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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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50 /*----------------------------------------------------------------------------
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52 *----------------------------------------------------------------------------*/
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58 /*------------------------------------------------------------------------------
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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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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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89 #define ACC_GetModeReg( pAcc ) ((pAcc)->ACC_MR)
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91 #define ACC_StartConversion( pAcc ) ((pAcc)->ACC_CR = ACC_CR_START)
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93 #define ACC_SoftReset( pAcc ) ((pAcc)->ACC_CR = ACC_CR_SWRST)
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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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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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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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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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115 #define ACC_EnableDataReadyIt( pAcc ) ((pAcc)->ACC_IER = AT91C_ACC_DRDY)
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117 #define ACC_GetStatus( pAcc ) ((pAcc)->ACC_ISR)
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119 #define ACC_GetChannelStatus( pAcc ) ((pAcc)->ACC_CHSR)
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121 #define ACC_GetInterruptMaskStatus( pAcc ) ((pAcc)->ACC_IMR)
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123 #define ACC_GetLastConvertedData( pAcc ) ((pAcc)->ACC_LCDR)
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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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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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135 #define ACC_GetAnalogCtrlReg( pAcc ) ((pAcc)->ACC_ACR)
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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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143 extern void ACC_SetComparisonPair( Acc *pAcc, uint8_t ucSelplus, uint8_t ucSelminus ) ;
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145 extern uint32_t ACC_GetComparisonResult( Acc* pAcc, uint32_t dwStatus ) ;
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151 #endif /* #ifndef _ACC_ */
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