2 ******************************************************************************
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3 * @file stm32f7xx_hal_dac_ex.c
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4 * @author MCD Application Team
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6 * @date 24-March-2015
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7 * @brief Extended DAC HAL module driver.
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8 * This file provides firmware functions to manage the following
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9 * functionalities of DAC extension peripheral:
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10 * + Extended features functions
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14 ==============================================================================
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15 ##### How to use this driver #####
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16 ==============================================================================
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18 (+) When Dual mode is enabled (i.e DAC Channel1 and Channel2 are used simultaneously) :
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19 Use HAL_DACEx_DualGetValue() to get digital data to be converted and use
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20 HAL_DACEx_DualSetValue() to set digital value to converted simultaneously in Channel 1 and Channel 2.
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21 (+) Use HAL_DACEx_TriangleWaveGenerate() to generate Triangle signal.
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22 (+) Use HAL_DACEx_NoiseWaveGenerate() to generate Noise signal.
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25 ******************************************************************************
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28 * <h2><center>© COPYRIGHT(c) 2015 STMicroelectronics</center></h2>
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30 * Redistribution and use in source and binary forms, with or without modification,
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31 * are permitted provided that the following conditions are met:
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32 * 1. Redistributions of source code must retain the above copyright notice,
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33 * this list of conditions and the following disclaimer.
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34 * 2. Redistributions in binary form must reproduce the above copyright notice,
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35 * this list of conditions and the following disclaimer in the documentation
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36 * and/or other materials provided with the distribution.
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37 * 3. Neither the name of STMicroelectronics nor the names of its contributors
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38 * may be used to endorse or promote products derived from this software
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39 * without specific prior written permission.
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41 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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42 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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43 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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44 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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45 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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46 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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47 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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48 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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49 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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50 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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52 ******************************************************************************
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56 /* Includes ------------------------------------------------------------------*/
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57 #include "stm32f7xx_hal.h"
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59 /** @addtogroup STM32F7xx_HAL_Driver
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63 /** @defgroup DACEx DACEx
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64 * @brief DAC driver modules
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68 #ifdef HAL_DAC_MODULE_ENABLED
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70 #if defined(STM32F756xx) || defined(STM32F746xx)
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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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83 /** @defgroup DACEx_Exported_Functions_Group1 Extended features functions
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84 * @brief Extended features functions
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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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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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108 uint32_t HAL_DACEx_DualGetValue(DAC_HandleTypeDef* hdac)
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112 tmp |= hdac->Instance->DOR1;
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114 tmp |= hdac->Instance->DOR2 << 16;
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116 /* Returns the DAC channel data output register value */
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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 * @arg DAC_CHANNEL_1: DAC Channel1 selected
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127 * @arg DAC_CHANNEL_2: DAC Channel2 selected
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128 * @param Amplitude: Select max triangle amplitude.
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129 * This parameter can be one of the following values:
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130 * @arg DAC_TRIANGLEAMPLITUDE_1: Select max triangle amplitude of 1
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131 * @arg DAC_TRIANGLEAMPLITUDE_3: Select max triangle amplitude of 3
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132 * @arg DAC_TRIANGLEAMPLITUDE_7: Select max triangle amplitude of 7
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133 * @arg DAC_TRIANGLEAMPLITUDE_15: Select max triangle amplitude of 15
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134 * @arg DAC_TRIANGLEAMPLITUDE_31: Select max triangle amplitude of 31
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135 * @arg DAC_TRIANGLEAMPLITUDE_63: Select max triangle amplitude of 63
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136 * @arg DAC_TRIANGLEAMPLITUDE_127: Select max triangle amplitude of 127
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137 * @arg DAC_TRIANGLEAMPLITUDE_255: Select max triangle amplitude of 255
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138 * @arg DAC_TRIANGLEAMPLITUDE_511: Select max triangle amplitude of 511
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139 * @arg DAC_TRIANGLEAMPLITUDE_1023: Select max triangle amplitude of 1023
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140 * @arg DAC_TRIANGLEAMPLITUDE_2047: Select max triangle amplitude of 2047
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141 * @arg DAC_TRIANGLEAMPLITUDE_4095: Select max triangle amplitude of 4095
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142 * @retval HAL status
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144 HAL_StatusTypeDef HAL_DACEx_TriangleWaveGenerate(DAC_HandleTypeDef* hdac, uint32_t Channel, uint32_t Amplitude)
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146 /* Check the parameters */
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147 assert_param(IS_DAC_CHANNEL(Channel));
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148 assert_param(IS_DAC_LFSR_UNMASK_TRIANGLE_AMPLITUDE(Amplitude));
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150 /* Process locked */
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153 /* Change DAC state */
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154 hdac->State = HAL_DAC_STATE_BUSY;
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156 /* Enable the selected wave generation for the selected DAC channel */
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157 MODIFY_REG(hdac->Instance->CR, (DAC_CR_WAVE1 | DAC_CR_MAMP1) << Channel, (DAC_CR_WAVE1_1 | Amplitude) << Channel);
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159 /* Change DAC state */
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160 hdac->State = HAL_DAC_STATE_READY;
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162 /* Process unlocked */
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163 __HAL_UNLOCK(hdac);
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165 /* Return function status */
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170 * @brief Enables or disables the selected DAC channel wave generation.
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171 * @param hdac: pointer to a DAC_HandleTypeDef structure that contains
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172 * the configuration information for the specified DAC.
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173 * @param Channel: The selected DAC channel.
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174 * This parameter can be one of the following values:
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175 * @arg DAC_CHANNEL_1: DAC Channel1 selected
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176 * @arg DAC_CHANNEL_2: DAC Channel2 selected
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177 * @param Amplitude: Unmask DAC channel LFSR for noise wave generation.
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178 * This parameter can be one of the following values:
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179 * @arg DAC_LFSRUNMASK_BIT0: Unmask DAC channel LFSR bit0 for noise wave generation
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180 * @arg DAC_LFSRUNMASK_BITS1_0: Unmask DAC channel LFSR bit[1:0] for noise wave generation
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181 * @arg DAC_LFSRUNMASK_BITS2_0: Unmask DAC channel LFSR bit[2:0] for noise wave generation
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182 * @arg DAC_LFSRUNMASK_BITS3_0: Unmask DAC channel LFSR bit[3:0] for noise wave generation
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183 * @arg DAC_LFSRUNMASK_BITS4_0: Unmask DAC channel LFSR bit[4:0] for noise wave generation
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184 * @arg DAC_LFSRUNMASK_BITS5_0: Unmask DAC channel LFSR bit[5:0] for noise wave generation
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185 * @arg DAC_LFSRUNMASK_BITS6_0: Unmask DAC channel LFSR bit[6:0] for noise wave generation
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186 * @arg DAC_LFSRUNMASK_BITS7_0: Unmask DAC channel LFSR bit[7:0] for noise wave generation
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187 * @arg DAC_LFSRUNMASK_BITS8_0: Unmask DAC channel LFSR bit[8:0] for noise wave generation
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188 * @arg DAC_LFSRUNMASK_BITS9_0: Unmask DAC channel LFSR bit[9:0] for noise wave generation
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189 * @arg DAC_LFSRUNMASK_BITS10_0: Unmask DAC channel LFSR bit[10:0] for noise wave generation
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190 * @arg DAC_LFSRUNMASK_BITS11_0: Unmask DAC channel LFSR bit[11:0] for noise wave generation
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191 * @retval HAL status
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193 HAL_StatusTypeDef HAL_DACEx_NoiseWaveGenerate(DAC_HandleTypeDef* hdac, uint32_t Channel, uint32_t Amplitude)
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195 /* Check the parameters */
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196 assert_param(IS_DAC_CHANNEL(Channel));
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197 assert_param(IS_DAC_LFSR_UNMASK_TRIANGLE_AMPLITUDE(Amplitude));
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199 /* Process locked */
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202 /* Change DAC state */
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203 hdac->State = HAL_DAC_STATE_BUSY;
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205 /* Enable the selected wave generation for the selected DAC channel */
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206 MODIFY_REG(hdac->Instance->CR, (DAC_CR_WAVE1 | DAC_CR_MAMP1) << Channel, (DAC_CR_WAVE1_0 | Amplitude) << Channel);
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208 /* Change DAC state */
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209 hdac->State = HAL_DAC_STATE_READY;
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211 /* Process unlocked */
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212 __HAL_UNLOCK(hdac);
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214 /* Return function status */
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219 * @brief Set the specified data holding register value for dual DAC channel.
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220 * @param hdac: pointer to a DAC_HandleTypeDef structure that contains
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221 * the configuration information for the specified DAC.
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222 * @param Alignment: Specifies the data alignment for dual channel DAC.
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223 * This parameter can be one of the following values:
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224 * DAC_ALIGN_8B_R: 8bit right data alignment selected
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225 * DAC_ALIGN_12B_L: 12bit left data alignment selected
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226 * DAC_ALIGN_12B_R: 12bit right data alignment selected
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227 * @param Data1: Data for DAC Channel2 to be loaded in the selected data holding register.
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228 * @param Data2: Data for DAC Channel1 to be loaded in the selected data holding register.
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229 * @note In dual mode, a unique register access is required to write in both
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230 * DAC channels at the same time.
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231 * @retval HAL status
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233 HAL_StatusTypeDef HAL_DACEx_DualSetValue(DAC_HandleTypeDef* hdac, uint32_t Alignment, uint32_t Data1, uint32_t Data2)
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235 uint32_t data = 0, tmp = 0;
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237 /* Check the parameters */
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238 assert_param(IS_DAC_ALIGN(Alignment));
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239 assert_param(IS_DAC_DATA(Data1));
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240 assert_param(IS_DAC_DATA(Data2));
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242 /* Calculate and set dual DAC data holding register value */
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243 if (Alignment == DAC_ALIGN_8B_R)
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245 data = ((uint32_t)Data2 << 8) | Data1;
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249 data = ((uint32_t)Data2 << 16) | Data1;
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252 tmp = (uint32_t)hdac->Instance;
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253 tmp += DAC_DHR12RD_ALIGNMENT(Alignment);
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255 /* Set the dual DAC selected data holding register */
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256 *(__IO uint32_t *)tmp = data;
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258 /* Return function status */
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267 * @brief Conversion complete callback in non blocking mode for Channel2
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268 * @param hdac: pointer to a DAC_HandleTypeDef structure that contains
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269 * the configuration information for the specified DAC.
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272 __weak void HAL_DACEx_ConvCpltCallbackCh2(DAC_HandleTypeDef* 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_ConvCpltCallbackCh2 could be implemented in the user file
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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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285 __weak void HAL_DACEx_ConvHalfCpltCallbackCh2(DAC_HandleTypeDef* hdac)
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287 /* NOTE : This function Should not be modified, when the callback is needed,
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288 the HAL_DACEx_ConvHalfCpltCallbackCh2 could be implemented in the user file
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293 * @brief Error DAC callback for Channel2.
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294 * @param hdac: pointer to a DAC_HandleTypeDef structure that contains
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295 * the configuration information for the specified DAC.
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298 __weak void HAL_DACEx_ErrorCallbackCh2(DAC_HandleTypeDef *hdac)
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300 /* NOTE : This function Should not be modified, when the callback is needed,
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301 the HAL_DACEx_ErrorCallbackCh2 could be implemented in the user file
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306 * @brief DMA underrun DAC callback for channel2.
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307 * @param hdac: pointer to a DAC_HandleTypeDef structure that contains
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308 * the configuration information for the specified DAC.
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311 __weak void HAL_DACEx_DMAUnderrunCallbackCh2(DAC_HandleTypeDef *hdac)
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313 /* NOTE : This function Should not be modified, when the callback is needed,
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314 the HAL_DACEx_DMAUnderrunCallbackCh2 could be implemented in the user file
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319 * @brief DMA conversion complete callback.
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320 * @param hdma: pointer to a DMA_HandleTypeDef structure that contains
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321 * the configuration information for the specified DMA module.
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324 void DAC_DMAConvCpltCh2(DMA_HandleTypeDef *hdma)
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326 DAC_HandleTypeDef* hdac = ( DAC_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent;
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328 HAL_DACEx_ConvCpltCallbackCh2(hdac);
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330 hdac->State= HAL_DAC_STATE_READY;
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334 * @brief DMA half transfer complete callback.
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335 * @param hdma: pointer to a DMA_HandleTypeDef structure that contains
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336 * the configuration information for the specified DMA module.
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339 void DAC_DMAHalfConvCpltCh2(DMA_HandleTypeDef *hdma)
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341 DAC_HandleTypeDef* hdac = ( DAC_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent;
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342 /* Conversion complete callback */
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343 HAL_DACEx_ConvHalfCpltCallbackCh2(hdac);
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347 * @brief DMA error callback
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348 * @param hdma: pointer to a DMA_HandleTypeDef structure that contains
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349 * the configuration information for the specified DMA module.
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352 void DAC_DMAErrorCh2(DMA_HandleTypeDef *hdma)
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354 DAC_HandleTypeDef* hdac = ( DAC_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent;
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356 /* Set DAC error code to DMA error */
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357 hdac->ErrorCode |= HAL_DAC_ERROR_DMA;
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359 HAL_DACEx_ErrorCallbackCh2(hdac);
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361 hdac->State= HAL_DAC_STATE_READY;
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368 #endif /* STM32F756xx || STM32F746xx */
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370 #endif /* HAL_DAC_MODULE_ENABLED */
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380 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
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