Mercurial > public > ostc4
annotate Common/Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_dma_ex.c @ 638:4532953ac1a0
Added last measured PPO2 value to sensor selection dialog:
In the divemenu => setpoint => UseSensor menu just the number of the sensor was as label. To have a better base for the selection decision the last measured value is now added to the label.
author | Ideenmodellierer |
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date | Wed, 24 Feb 2021 21:45:35 +0100 |
parents | c78bcbd5deda |
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rev | line source |
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1 /** |
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2 ****************************************************************************** |
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3 * @file stm32f4xx_hal_dma_ex.c |
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4 * @author MCD Application Team |
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5 * @brief DMA Extension HAL module driver |
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6 * This file provides firmware functions to manage the following |
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7 * functionalities of the DMA Extension peripheral: |
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8 * + Extended features functions |
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9 * |
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10 @verbatim |
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11 ============================================================================== |
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12 ##### How to use this driver ##### |
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13 ============================================================================== |
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14 [..] |
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15 The DMA Extension HAL driver can be used as follows: |
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16 (#) Start a multi buffer transfer using the HAL_DMA_MultiBufferStart() function |
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17 for polling mode or HAL_DMA_MultiBufferStart_IT() for interrupt mode. |
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18 |
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19 -@- In Memory-to-Memory transfer mode, Multi (Double) Buffer mode is not allowed. |
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20 -@- When Multi (Double) Buffer mode is enabled the, transfer is circular by default. |
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21 -@- In Multi (Double) buffer mode, it is possible to update the base address for |
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22 the AHB memory port on the fly (DMA_SxM0AR or DMA_SxM1AR) when the stream is enabled. |
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23 |
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24 @endverbatim |
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25 ****************************************************************************** |
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26 * @attention |
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27 * |
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28 * <h2><center>© COPYRIGHT(c) 2017 STMicroelectronics</center></h2> |
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29 * |
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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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40 * |
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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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51 * |
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52 ****************************************************************************** |
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53 */ |
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54 |
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55 /* Includes ------------------------------------------------------------------*/ |
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56 #include "stm32f4xx_hal.h" |
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57 |
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58 /** @addtogroup STM32F4xx_HAL_Driver |
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59 * @{ |
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60 */ |
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61 |
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62 /** @defgroup DMAEx DMAEx |
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63 * @brief DMA Extended HAL module driver |
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64 * @{ |
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65 */ |
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66 |
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67 #ifdef HAL_DMA_MODULE_ENABLED |
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68 |
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69 /* Private types -------------------------------------------------------------*/ |
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70 /* Private variables ---------------------------------------------------------*/ |
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71 /* Private Constants ---------------------------------------------------------*/ |
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72 /* Private macros ------------------------------------------------------------*/ |
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73 /* Private functions ---------------------------------------------------------*/ |
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74 /** @addtogroup DMAEx_Private_Functions |
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75 * @{ |
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76 */ |
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77 static void DMA_MultiBufferSetConfig(DMA_HandleTypeDef *hdma, uint32_t SrcAddress, uint32_t DstAddress, uint32_t DataLength); |
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78 /** |
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79 * @} |
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80 */ |
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81 |
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82 /* Exported functions ---------------------------------------------------------*/ |
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83 |
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84 /** @addtogroup DMAEx_Exported_Functions |
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85 * @{ |
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86 */ |
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87 |
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88 |
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89 /** @addtogroup DMAEx_Exported_Functions_Group1 |
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90 * |
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91 @verbatim |
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92 =============================================================================== |
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93 ##### Extended features functions ##### |
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94 =============================================================================== |
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95 [..] This section provides functions allowing to: |
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96 (+) Configure the source, destination address and data length and |
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97 Start MultiBuffer DMA transfer |
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98 (+) Configure the source, destination address and data length and |
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99 Start MultiBuffer DMA transfer with interrupt |
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100 (+) Change on the fly the memory0 or memory1 address. |
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101 |
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102 @endverbatim |
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103 * @{ |
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104 */ |
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105 |
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106 |
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107 /** |
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108 * @brief Starts the multi_buffer DMA Transfer. |
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109 * @param hdma pointer to a DMA_HandleTypeDef structure that contains |
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110 * the configuration information for the specified DMA Stream. |
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111 * @param SrcAddress The source memory Buffer address |
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112 * @param DstAddress The destination memory Buffer address |
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113 * @param SecondMemAddress The second memory Buffer address in case of multi buffer Transfer |
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114 * @param DataLength The length of data to be transferred from source to destination |
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115 * @retval HAL status |
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116 */ |
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117 HAL_StatusTypeDef HAL_DMAEx_MultiBufferStart(DMA_HandleTypeDef *hdma, uint32_t SrcAddress, uint32_t DstAddress, uint32_t SecondMemAddress, uint32_t DataLength) |
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118 { |
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119 HAL_StatusTypeDef status = HAL_OK; |
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120 |
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121 /* Check the parameters */ |
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122 assert_param(IS_DMA_BUFFER_SIZE(DataLength)); |
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123 |
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124 /* Memory-to-memory transfer not supported in double buffering mode */ |
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125 if (hdma->Init.Direction == DMA_MEMORY_TO_MEMORY) |
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126 { |
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127 hdma->ErrorCode = HAL_DMA_ERROR_NOT_SUPPORTED; |
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128 status = HAL_ERROR; |
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129 } |
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130 else |
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131 { |
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132 /* Process Locked */ |
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133 __HAL_LOCK(hdma); |
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134 |
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135 if(HAL_DMA_STATE_READY == hdma->State) |
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136 { |
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137 /* Change DMA peripheral state */ |
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138 hdma->State = HAL_DMA_STATE_BUSY; |
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139 |
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140 /* Enable the double buffer mode */ |
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141 hdma->Instance->CR |= (uint32_t)DMA_SxCR_DBM; |
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142 |
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143 /* Configure DMA Stream destination address */ |
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144 hdma->Instance->M1AR = SecondMemAddress; |
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145 |
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146 /* Configure the source, destination address and the data length */ |
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147 DMA_MultiBufferSetConfig(hdma, SrcAddress, DstAddress, DataLength); |
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148 |
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149 /* Enable the peripheral */ |
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150 __HAL_DMA_ENABLE(hdma); |
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151 } |
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152 else |
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153 { |
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154 /* Return error status */ |
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155 status = HAL_BUSY; |
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156 } |
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157 } |
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158 return status; |
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159 } |
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160 |
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161 /** |
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162 * @brief Starts the multi_buffer DMA Transfer with interrupt enabled. |
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163 * @param hdma pointer to a DMA_HandleTypeDef structure that contains |
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164 * the configuration information for the specified DMA Stream. |
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165 * @param SrcAddress The source memory Buffer address |
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166 * @param DstAddress The destination memory Buffer address |
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167 * @param SecondMemAddress The second memory Buffer address in case of multi buffer Transfer |
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168 * @param DataLength The length of data to be transferred from source to destination |
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169 * @retval HAL status |
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170 */ |
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171 HAL_StatusTypeDef HAL_DMAEx_MultiBufferStart_IT(DMA_HandleTypeDef *hdma, uint32_t SrcAddress, uint32_t DstAddress, uint32_t SecondMemAddress, uint32_t DataLength) |
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172 { |
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173 HAL_StatusTypeDef status = HAL_OK; |
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174 |
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175 /* Check the parameters */ |
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176 assert_param(IS_DMA_BUFFER_SIZE(DataLength)); |
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177 |
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178 /* Memory-to-memory transfer not supported in double buffering mode */ |
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179 if (hdma->Init.Direction == DMA_MEMORY_TO_MEMORY) |
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180 { |
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181 hdma->ErrorCode = HAL_DMA_ERROR_NOT_SUPPORTED; |
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182 return HAL_ERROR; |
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183 } |
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184 |
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185 /* Check callback functions */ |
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186 if ((NULL == hdma->XferCpltCallback) || (NULL == hdma->XferM1CpltCallback) || (NULL == hdma->XferErrorCallback)) |
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187 { |
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188 hdma->ErrorCode = HAL_DMA_ERROR_PARAM; |
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189 return HAL_ERROR; |
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190 } |
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191 |
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192 /* Process locked */ |
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193 __HAL_LOCK(hdma); |
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194 |
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195 if(HAL_DMA_STATE_READY == hdma->State) |
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196 { |
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197 /* Change DMA peripheral state */ |
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198 hdma->State = HAL_DMA_STATE_BUSY; |
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199 |
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200 /* Initialize the error code */ |
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201 hdma->ErrorCode = HAL_DMA_ERROR_NONE; |
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202 |
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203 /* Enable the Double buffer mode */ |
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204 hdma->Instance->CR |= (uint32_t)DMA_SxCR_DBM; |
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205 |
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206 /* Configure DMA Stream destination address */ |
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207 hdma->Instance->M1AR = SecondMemAddress; |
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208 |
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209 /* Configure the source, destination address and the data length */ |
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210 DMA_MultiBufferSetConfig(hdma, SrcAddress, DstAddress, DataLength); |
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211 |
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212 /* Clear all flags */ |
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213 __HAL_DMA_CLEAR_FLAG (hdma, __HAL_DMA_GET_TC_FLAG_INDEX(hdma)); |
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214 __HAL_DMA_CLEAR_FLAG (hdma, __HAL_DMA_GET_HT_FLAG_INDEX(hdma)); |
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215 __HAL_DMA_CLEAR_FLAG (hdma, __HAL_DMA_GET_TE_FLAG_INDEX(hdma)); |
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216 __HAL_DMA_CLEAR_FLAG (hdma, __HAL_DMA_GET_DME_FLAG_INDEX(hdma)); |
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217 __HAL_DMA_CLEAR_FLAG (hdma, __HAL_DMA_GET_FE_FLAG_INDEX(hdma)); |
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218 |
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219 /* Enable Common interrupts*/ |
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220 hdma->Instance->CR |= DMA_IT_TC | DMA_IT_TE | DMA_IT_DME; |
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221 hdma->Instance->FCR |= DMA_IT_FE; |
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222 |
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223 if((hdma->XferHalfCpltCallback != NULL) || (hdma->XferM1HalfCpltCallback != NULL)) |
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224 { |
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225 hdma->Instance->CR |= DMA_IT_HT; |
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226 } |
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227 |
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228 /* Enable the peripheral */ |
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229 __HAL_DMA_ENABLE(hdma); |
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230 } |
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231 else |
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232 { |
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233 /* Process unlocked */ |
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234 __HAL_UNLOCK(hdma); |
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235 |
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236 /* Return error status */ |
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237 status = HAL_BUSY; |
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238 } |
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239 return status; |
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240 } |
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241 |
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242 /** |
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243 * @brief Change the memory0 or memory1 address on the fly. |
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244 * @param hdma pointer to a DMA_HandleTypeDef structure that contains |
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245 * the configuration information for the specified DMA Stream. |
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246 * @param Address The new address |
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247 * @param memory the memory to be changed, This parameter can be one of |
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248 * the following values: |
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249 * MEMORY0 / |
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250 * MEMORY1 |
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251 * @note The MEMORY0 address can be changed only when the current transfer use |
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252 * MEMORY1 and the MEMORY1 address can be changed only when the current |
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253 * transfer use MEMORY0. |
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254 * @retval HAL status |
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255 */ |
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256 HAL_StatusTypeDef HAL_DMAEx_ChangeMemory(DMA_HandleTypeDef *hdma, uint32_t Address, HAL_DMA_MemoryTypeDef memory) |
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257 { |
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258 if(memory == MEMORY0) |
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259 { |
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260 /* change the memory0 address */ |
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261 hdma->Instance->M0AR = Address; |
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262 } |
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263 else |
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264 { |
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265 /* change the memory1 address */ |
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266 hdma->Instance->M1AR = Address; |
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267 } |
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268 |
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269 return HAL_OK; |
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270 } |
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271 |
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272 /** |
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273 * @} |
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274 */ |
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275 |
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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 /** @addtogroup DMAEx_Private_Functions |
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281 * @{ |
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282 */ |
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283 |
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284 /** |
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285 * @brief Set the DMA Transfer parameter. |
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286 * @param hdma pointer to a DMA_HandleTypeDef structure that contains |
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287 * the configuration information for the specified DMA Stream. |
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288 * @param SrcAddress The source memory Buffer address |
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289 * @param DstAddress The destination memory Buffer address |
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290 * @param DataLength The length of data to be transferred from source to destination |
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291 * @retval HAL status |
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292 */ |
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293 static void DMA_MultiBufferSetConfig(DMA_HandleTypeDef *hdma, uint32_t SrcAddress, uint32_t DstAddress, uint32_t DataLength) |
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294 { |
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295 /* Configure DMA Stream data length */ |
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296 hdma->Instance->NDTR = DataLength; |
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297 |
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298 /* Peripheral to Memory */ |
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299 if((hdma->Init.Direction) == DMA_MEMORY_TO_PERIPH) |
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300 { |
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301 /* Configure DMA Stream destination address */ |
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302 hdma->Instance->PAR = DstAddress; |
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303 |
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304 /* Configure DMA Stream source address */ |
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305 hdma->Instance->M0AR = SrcAddress; |
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306 } |
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307 /* Memory to Peripheral */ |
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308 else |
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309 { |
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310 /* Configure DMA Stream source address */ |
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311 hdma->Instance->PAR = SrcAddress; |
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312 |
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313 /* Configure DMA Stream destination address */ |
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314 hdma->Instance->M0AR = DstAddress; |
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315 } |
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316 } |
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317 |
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318 /** |
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319 * @} |
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320 */ |
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321 |
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322 #endif /* HAL_DMA_MODULE_ENABLED */ |
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323 /** |
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324 * @} |
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325 */ |
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326 |
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327 /** |
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328 * @} |
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329 */ |
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330 |
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331 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/ |