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annotate Common/Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_dac_ex.c @ 198:878dc9e0dbc5 div-fixes-cleaup-2

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cleanup: another cleanup session (data_exchange_main.c) Cleanup all kinds of stuff in one of the core functions. Made local data static, with 1 already existing exception (the dataIn data). For this, a trivial change is made in t7.c. In addition, not used code, and commented out code that seems highly obsolete is removed. Another tiny step in code that is better to maintain in the future. Signed-off-by: Jan Mulder <jlmulder@xs4all.nl>
author Jan Mulder <jlmulder@xs4all.nl>
date Thu, 21 Mar 2019 15:28:47 +0100
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128
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1 /**
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2 ******************************************************************************
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3 * @file stm32f4xx_hal_dac_ex.c
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4 * @author MCD Application Team
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5 * @brief DAC HAL module driver.
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6 * This file provides firmware functions to manage the following
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7 * functionalities of DAC extension peripheral:
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8 * + Extended features functions
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9 *
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10 *
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11 @verbatim
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12 ==============================================================================
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13 ##### How to use this driver #####
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14 ==============================================================================
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15 [..]
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16 (+) When Dual mode is enabled (i.e DAC Channel1 and Channel2 are used simultaneously) :
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17 Use HAL_DACEx_DualGetValue() to get digital data to be converted and use
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18 HAL_DACEx_DualSetValue() to set digital value to converted simultaneously in Channel 1 and Channel 2.
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19 (+) Use HAL_DACEx_TriangleWaveGenerate() to generate Triangle signal.
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20 (+) Use HAL_DACEx_NoiseWaveGenerate() to generate Noise signal.
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21
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22 @endverbatim
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23 ******************************************************************************
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24 * @attention
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25 *
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26 * <h2><center>&copy; COPYRIGHT(c) 2017 STMicroelectronics</center></h2>
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27 *
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28 * Redistribution and use in source and binary forms, with or without modification,
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29 * are permitted provided that the following conditions are met:
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30 * 1. Redistributions of source code must retain the above copyright notice,
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31 * this list of conditions and the following disclaimer.
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32 * 2. Redistributions in binary form must reproduce the above copyright notice,
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33 * this list of conditions and the following disclaimer in the documentation
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34 * and/or other materials provided with the distribution.
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35 * 3. Neither the name of STMicroelectronics nor the names of its contributors
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36 * may be used to endorse or promote products derived from this software
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37 * without specific prior written permission.
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38 *
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39 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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40 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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41 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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42 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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43 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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44 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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45 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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46 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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47 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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48 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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49 *
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50 ******************************************************************************
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51 */
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52
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53
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54 /* Includes ------------------------------------------------------------------*/
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55 #include "stm32f4xx_hal.h"
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56
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57 /** @addtogroup STM32F4xx_HAL_Driver
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58 * @{
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59 */
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60
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61 /** @defgroup DACEx DACEx
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62 * @brief DAC driver modules
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63 * @{
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64 */
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65
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66 #ifdef HAL_DAC_MODULE_ENABLED
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67
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68 #if defined(STM32F405xx) || defined(STM32F415xx) || defined(STM32F407xx) || defined(STM32F417xx) ||\
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69 defined(STM32F427xx) || defined(STM32F437xx) || defined(STM32F429xx) || defined(STM32F439xx) ||\
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70 defined(STM32F410Tx) || defined(STM32F410Cx) || defined(STM32F410Rx) || defined(STM32F446xx) ||\
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71 defined(STM32F469xx) || defined(STM32F479xx) || defined(STM32F413xx) || defined(STM32F423xx)
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72 /* Private typedef -----------------------------------------------------------*/
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73 /* Private define ------------------------------------------------------------*/
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74 /* Private macro -------------------------------------------------------------*/
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75 /* Private variables ---------------------------------------------------------*/
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76 /* Private function prototypes -----------------------------------------------*/
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77 /* Private functions ---------------------------------------------------------*/
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78 /* Exported functions --------------------------------------------------------*/
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79 /** @defgroup DACEx_Exported_Functions DAC Exported Functions
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80 * @{
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81 */
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82
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83 /** @defgroup DACEx_Exported_Functions_Group1 Extended features functions
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84 * @brief Extended features functions
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85 *
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86 @verbatim
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87 ==============================================================================
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88 ##### Extended features functions #####
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89 ==============================================================================
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90 [..] This section provides functions allowing to:
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91 (+) Start conversion.
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92 (+) Stop conversion.
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93 (+) Start conversion and enable DMA transfer.
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94 (+) Stop conversion and disable DMA transfer.
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95 (+) Get result of conversion.
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96 (+) Get result of dual mode conversion.
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97
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98 @endverbatim
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99 * @{
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100 */
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101
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102 /**
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103 * @brief Returns the last data output value of the selected DAC channel.
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104 * @param hdac pointer to a DAC_HandleTypeDef structure that contains
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105 * the configuration information for the specified DAC.
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106 * @retval The selected DAC channel data output value.
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107 */
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108 uint32_t HAL_DACEx_DualGetValue(DAC_HandleTypeDef* hdac)
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109 {
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110 uint32_t tmp = 0U;
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111
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112 tmp |= hdac->Instance->DOR1;
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113
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114 tmp |= hdac->Instance->DOR2 << 16U;
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115
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116 /* Returns the DAC channel data output register value */
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117 return tmp;
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118 }
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119
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120 /**
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121 * @brief Enables or disables the selected DAC channel wave generation.
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122 * @param hdac pointer to a DAC_HandleTypeDef structure that contains
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123 * the configuration information for the specified DAC.
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124 * @param Channel The selected DAC channel.
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125 * This parameter can be one of the following values:
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126 * DAC_CHANNEL_1 / DAC_CHANNEL_2
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127 * @param Amplitude Select max triangle amplitude.
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128 * This parameter can be one of the following values:
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129 * @arg DAC_TRIANGLEAMPLITUDE_1: Select max triangle amplitude of 1
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130 * @arg DAC_TRIANGLEAMPLITUDE_3: Select max triangle amplitude of 3
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131 * @arg DAC_TRIANGLEAMPLITUDE_7: Select max triangle amplitude of 7
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132 * @arg DAC_TRIANGLEAMPLITUDE_15: Select max triangle amplitude of 15
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133 * @arg DAC_TRIANGLEAMPLITUDE_31: Select max triangle amplitude of 31
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134 * @arg DAC_TRIANGLEAMPLITUDE_63: Select max triangle amplitude of 63
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135 * @arg DAC_TRIANGLEAMPLITUDE_127: Select max triangle amplitude of 127
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136 * @arg DAC_TRIANGLEAMPLITUDE_255: Select max triangle amplitude of 255
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137 * @arg DAC_TRIANGLEAMPLITUDE_511: Select max triangle amplitude of 511
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138 * @arg DAC_TRIANGLEAMPLITUDE_1023: Select max triangle amplitude of 1023
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139 * @arg DAC_TRIANGLEAMPLITUDE_2047: Select max triangle amplitude of 2047
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140 * @arg DAC_TRIANGLEAMPLITUDE_4095: Select max triangle amplitude of 4095
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141 * @retval HAL status
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142 */
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143 HAL_StatusTypeDef HAL_DACEx_TriangleWaveGenerate(DAC_HandleTypeDef* hdac, uint32_t Channel, uint32_t Amplitude)
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144 {
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145 /* Check the parameters */
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146 assert_param(IS_DAC_CHANNEL(Channel));
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147 assert_param(IS_DAC_LFSR_UNMASK_TRIANGLE_AMPLITUDE(Amplitude));
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148
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149 /* Process locked */
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150 __HAL_LOCK(hdac);
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151
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152 /* Change DAC state */
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153 hdac->State = HAL_DAC_STATE_BUSY;
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154
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155 /* Enable the selected wave generation for the selected DAC channel */
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156 MODIFY_REG(hdac->Instance->CR, (DAC_CR_WAVE1 | DAC_CR_MAMP1) << Channel, (DAC_CR_WAVE1_1 | Amplitude) << Channel);
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157
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158 /* Change DAC state */
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159 hdac->State = HAL_DAC_STATE_READY;
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160
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161 /* Process unlocked */
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162 __HAL_UNLOCK(hdac);
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163
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164 /* Return function status */
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165 return HAL_OK;
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166 }
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167
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168 /**
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169 * @brief Enables or disables the selected DAC channel wave generation.
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170 * @param hdac pointer to a DAC_HandleTypeDef structure that contains
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171 * the configuration information for the specified DAC.
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172 * @param Channel The selected DAC channel.
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173 * This parameter can be one of the following values:
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174 * DAC_CHANNEL_1 / DAC_CHANNEL_2
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175 * @param Amplitude Unmask DAC channel LFSR for noise wave generation.
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176 * This parameter can be one of the following values:
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177 * @arg DAC_LFSRUNMASK_BIT0: Unmask DAC channel LFSR bit0 for noise wave generation
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178 * @arg DAC_LFSRUNMASK_BITS1_0: Unmask DAC channel LFSR bit[1:0] for noise wave generation
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179 * @arg DAC_LFSRUNMASK_BITS2_0: Unmask DAC channel LFSR bit[2:0] for noise wave generation
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180 * @arg DAC_LFSRUNMASK_BITS3_0: Unmask DAC channel LFSR bit[3:0] for noise wave generation
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181 * @arg DAC_LFSRUNMASK_BITS4_0: Unmask DAC channel LFSR bit[4:0] for noise wave generation
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182 * @arg DAC_LFSRUNMASK_BITS5_0: Unmask DAC channel LFSR bit[5:0] for noise wave generation
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183 * @arg DAC_LFSRUNMASK_BITS6_0: Unmask DAC channel LFSR bit[6:0] for noise wave generation
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184 * @arg DAC_LFSRUNMASK_BITS7_0: Unmask DAC channel LFSR bit[7:0] for noise wave generation
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185 * @arg DAC_LFSRUNMASK_BITS8_0: Unmask DAC channel LFSR bit[8:0] for noise wave generation
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186 * @arg DAC_LFSRUNMASK_BITS9_0: Unmask DAC channel LFSR bit[9:0] for noise wave generation
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187 * @arg DAC_LFSRUNMASK_BITS10_0: Unmask DAC channel LFSR bit[10:0] for noise wave generation
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188 * @arg DAC_LFSRUNMASK_BITS11_0: Unmask DAC channel LFSR bit[11:0] for noise wave generation
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189 * @retval HAL status
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190 */
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191 HAL_StatusTypeDef HAL_DACEx_NoiseWaveGenerate(DAC_HandleTypeDef* hdac, uint32_t Channel, uint32_t Amplitude)
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192 {
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193 /* Check the parameters */
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194 assert_param(IS_DAC_CHANNEL(Channel));
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195 assert_param(IS_DAC_LFSR_UNMASK_TRIANGLE_AMPLITUDE(Amplitude));
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196
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197 /* Process locked */
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198 __HAL_LOCK(hdac);
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199
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200 /* Change DAC state */
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201 hdac->State = HAL_DAC_STATE_BUSY;
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202
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203 /* Enable the selected wave generation for the selected DAC channel */
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204 MODIFY_REG(hdac->Instance->CR, (DAC_CR_WAVE1 | DAC_CR_MAMP1) << Channel, (DAC_CR_WAVE1_0 | Amplitude) << Channel);
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205
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206 /* Change DAC state */
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207 hdac->State = HAL_DAC_STATE_READY;
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208
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209 /* Process unlocked */
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210 __HAL_UNLOCK(hdac);
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211
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212 /* Return function status */
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213 return HAL_OK;
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214 }
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215
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216 /**
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217 * @brief Set the specified data holding register value for dual DAC channel.
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218 * @param hdac pointer to a DAC_HandleTypeDef structure that contains
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219 * the configuration information for the specified DAC.
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220 * @param Alignment Specifies the data alignment for dual channel DAC.
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221 * This parameter can be one of the following values:
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222 * DAC_ALIGN_8B_R: 8bit right data alignment selected
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223 * DAC_ALIGN_12B_L: 12bit left data alignment selected
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224 * DAC_ALIGN_12B_R: 12bit right data alignment selected
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225 * @param Data1 Data for DAC Channel2 to be loaded in the selected data holding register.
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226 * @param Data2 Data for DAC Channel1 to be loaded in the selected data holding register.
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227 * @note In dual mode, a unique register access is required to write in both
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228 * DAC channels at the same time.
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229 * @retval HAL status
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230 */
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231 HAL_StatusTypeDef HAL_DACEx_DualSetValue(DAC_HandleTypeDef* hdac, uint32_t Alignment, uint32_t Data1, uint32_t Data2)
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232 {
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233 uint32_t data = 0U, tmp = 0U;
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234
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235 /* Check the parameters */
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236 assert_param(IS_DAC_ALIGN(Alignment));
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237 assert_param(IS_DAC_DATA(Data1));
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238 assert_param(IS_DAC_DATA(Data2));
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239
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240 /* Calculate and set dual DAC data holding register value */
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241 if (Alignment == DAC_ALIGN_8B_R)
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242 {
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243 data = ((uint32_t)Data2 << 8U) | Data1;
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244 }
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245 else
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246 {
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247 data = ((uint32_t)Data2 << 16U) | Data1;
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248 }
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249
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250 tmp = (uint32_t)hdac->Instance;
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251 tmp += DAC_DHR12RD_ALIGNMENT(Alignment);
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252
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253 /* Set the dual DAC selected data holding register */
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254 *(__IO uint32_t *)tmp = data;
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255
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256 /* Return function status */
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257 return HAL_OK;
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258 }
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259
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260 /**
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261 * @}
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262 */
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263
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264 /**
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265 * @brief Conversion complete callback in non blocking mode for Channel2
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266 * @param hdac pointer to a DAC_HandleTypeDef structure that contains
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267 * the configuration information for the specified DAC.
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268 * @retval None
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269 */
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270 __weak void HAL_DACEx_ConvCpltCallbackCh2(DAC_HandleTypeDef* hdac)
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271 {
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272 /* Prevent unused argument(s) compilation warning */
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273 UNUSED(hdac);
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274 /* NOTE : This function Should not be modified, when the callback is needed,
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275 the HAL_DAC_ConvCpltCallback could be implemented in the user file
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276 */
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277 }
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278
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279 /**
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280 * @brief Conversion half DMA transfer callback in non blocking mode for Channel2
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281 * @param hdac pointer to a DAC_HandleTypeDef structure that contains
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282 * the configuration information for the specified DAC.
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283 * @retval None
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284 */
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285 __weak void HAL_DACEx_ConvHalfCpltCallbackCh2(DAC_HandleTypeDef* hdac)
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286 {
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287 /* Prevent unused argument(s) compilation warning */
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288 UNUSED(hdac);
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289 /* NOTE : This function Should not be modified, when the callback is needed,
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290 the HAL_DAC_ConvHalfCpltCallbackCh2 could be implemented in the user file
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291 */
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292 }
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293
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294 /**
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295 * @brief Error DAC callback for Channel2.
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296 * @param hdac pointer to a DAC_HandleTypeDef structure that contains
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297 * the configuration information for the specified DAC.
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298 * @retval None
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299 */
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300 __weak void HAL_DACEx_ErrorCallbackCh2(DAC_HandleTypeDef *hdac)
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301 {
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302 /* Prevent unused argument(s) compilation warning */
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303 UNUSED(hdac);
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304 /* NOTE : This function Should not be modified, when the callback is needed,
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305 the HAL_DAC_ErrorCallback could be implemented in the user file
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306 */
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307 }
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308
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309 /**
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310 * @brief DMA underrun DAC callback for channel2.
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311 * @param hdac pointer to a DAC_HandleTypeDef structure that contains
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312 * the configuration information for the specified DAC.
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313 * @retval None
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314 */
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315 __weak void HAL_DACEx_DMAUnderrunCallbackCh2(DAC_HandleTypeDef *hdac)
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316 {
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317 /* Prevent unused argument(s) compilation warning */
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318 UNUSED(hdac);
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319 /* NOTE : This function Should not be modified, when the callback is needed,
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320 the HAL_DAC_DMAUnderrunCallbackCh2 could be implemented in the user file
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321 */
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322 }
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323
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324 /**
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325 * @brief DMA conversion complete callback.
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326 * @param hdma pointer to a DMA_HandleTypeDef structure that contains
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327 * the configuration information for the specified DMA module.
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328 * @retval None
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329 */
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330 void DAC_DMAConvCpltCh2(DMA_HandleTypeDef *hdma)
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331 {
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332 DAC_HandleTypeDef* hdac = ( DAC_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent;
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333
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334 HAL_DACEx_ConvCpltCallbackCh2(hdac);
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335
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336 hdac->State= HAL_DAC_STATE_READY;
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337 }
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338
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339 /**
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340 * @brief DMA half transfer complete callback.
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341 * @param hdma pointer to a DMA_HandleTypeDef structure that contains
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342 * the configuration information for the specified DMA module.
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343 * @retval None
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344 */
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345 void DAC_DMAHalfConvCpltCh2(DMA_HandleTypeDef *hdma)
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346 {
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347 DAC_HandleTypeDef* hdac = ( DAC_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent;
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348 /* Conversion complete callback */
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349 HAL_DACEx_ConvHalfCpltCallbackCh2(hdac);
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350 }
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351
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352 /**
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353 * @brief DMA error callback
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354 * @param hdma pointer to a DMA_HandleTypeDef structure that contains
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355 * the configuration information for the specified DMA module.
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356 * @retval None
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357 */
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358 void DAC_DMAErrorCh2(DMA_HandleTypeDef *hdma)
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359 {
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360 DAC_HandleTypeDef* hdac = ( DAC_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent;
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361
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362 /* Set DAC error code to DMA error */
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363 hdac->ErrorCode |= HAL_DAC_ERROR_DMA;
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364
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365 HAL_DACEx_ErrorCallbackCh2(hdac);
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366
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367 hdac->State= HAL_DAC_STATE_READY;
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368 }
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369
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370 /**
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371 * @}
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372 */
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373
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374 #endif /* STM32F405xx || STM32F415xx || STM32F407xx || STM32F417xx ||\
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375 STM32F427xx || STM32F437xx || STM32F429xx || STM32F439xx ||\
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376 STM32F410xx || STM32F446xx || STM32F469xx || STM32F479xx ||\
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377 STM32F413xx || STM32F423xx */
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378
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379 #endif /* HAL_DAC_MODULE_ENABLED */
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380
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381 /**
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382 * @}
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383 */
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384
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385 /**
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386 * @}
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387 */
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388
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389 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/