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annotate Common/Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_dcmi_ex.c @ 311:ddbe8bed5096 cleanup-4

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bugfix: make stopwatch and divetime run in sync And this shows the fundamental issue in the difference between dive time and stopwatch time. The dive time is constructed on the RTE, and rather independently, the stopwatch time is constructed on CPU1. This works rather well, but not perfect. This commit fixes things in a relatively straightforward way. Instead of incrementing the stopwatch locally on CPU1, simply use the same time data that is coming from the RTE. Some logic was added to make this stopwatch resettable again. Signed-off-by: Jan Mulder <jlmulder@xs4all.nl>
author Jan Mulder <jlmulder@xs4all.nl>
date Wed, 29 May 2019 14:02:27 +0200
parents c78bcbd5deda
children
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1 /**
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2 ******************************************************************************
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3 * @file stm32f4xx_hal_dcmi_ex.c
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4 * @author MCD Application Team
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5 * @brief DCMI 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 DCMI extension peripheral:
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8 * + Extension features functions
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9 *
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10 @verbatim
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11 ==============================================================================
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12 ##### DCMI peripheral extension features #####
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13 ==============================================================================
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14
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15 [..] Comparing to other previous devices, the DCMI interface for STM32F446xx
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16 devices contains the following additional features :
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17
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18 (+) Support of Black and White cameras
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19
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20 ##### How to use this driver #####
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21 ==============================================================================
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22 [..] This driver provides functions to manage the Black and White feature
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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>&copy; 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 /** @defgroup DCMIEx DCMIEx
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62 * @brief DCMI Extended HAL module driver
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63 * @{
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64 */
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65
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66 #ifdef HAL_DCMI_MODULE_ENABLED
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67
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68 #if defined(STM32F407xx) || defined(STM32F417xx) || defined(STM32F427xx) || defined(STM32F437xx) || defined(STM32F429xx) ||\
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69 defined(STM32F439xx) || defined(STM32F446xx) || defined(STM32F469xx) || defined(STM32F479xx)
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70 /* Private typedef -----------------------------------------------------------*/
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71 /* Private define ------------------------------------------------------------*/
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72 /* Private macro -------------------------------------------------------------*/
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73 /* Private variables ---------------------------------------------------------*/
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74 /* Private function prototypes -----------------------------------------------*/
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75 /* Exported functions --------------------------------------------------------*/
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76
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77 /** @defgroup DCMIEx_Exported_Functions DCMI Extended Exported Functions
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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 * @}
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83 */
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84
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85 /** @addtogroup DCMI_Exported_Functions_Group1 Initialization and Configuration functions
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86 * @{
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87 */
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88
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89 /**
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90 * @brief Initializes the DCMI according to the specified
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91 * parameters in the DCMI_InitTypeDef and create the associated handle.
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92 * @param hdcmi pointer to a DCMI_HandleTypeDef structure that contains
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93 * the configuration information for DCMI.
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94 * @retval HAL status
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95 */
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96 HAL_StatusTypeDef HAL_DCMI_Init(DCMI_HandleTypeDef *hdcmi)
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97 {
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98 /* Check the DCMI peripheral state */
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99 if(hdcmi == NULL)
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100 {
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101 return HAL_ERROR;
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102 }
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103
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104 /* Check function parameters */
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105 assert_param(IS_DCMI_ALL_INSTANCE(hdcmi->Instance));
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106 assert_param(IS_DCMI_PCKPOLARITY(hdcmi->Init.PCKPolarity));
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107 assert_param(IS_DCMI_VSPOLARITY(hdcmi->Init.VSPolarity));
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108 assert_param(IS_DCMI_HSPOLARITY(hdcmi->Init.HSPolarity));
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109 assert_param(IS_DCMI_SYNCHRO(hdcmi->Init.SynchroMode));
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110 assert_param(IS_DCMI_CAPTURE_RATE(hdcmi->Init.CaptureRate));
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111 assert_param(IS_DCMI_EXTENDED_DATA(hdcmi->Init.ExtendedDataMode));
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112 assert_param(IS_DCMI_MODE_JPEG(hdcmi->Init.JPEGMode));
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113 #if defined(STM32F446xx) || defined(STM32F469xx) || defined(STM32F479xx)
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114 assert_param(IS_DCMI_BYTE_SELECT_MODE(hdcmi->Init.ByteSelectMode));
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115 assert_param(IS_DCMI_BYTE_SELECT_START(hdcmi->Init.ByteSelectStart));
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116 assert_param(IS_DCMI_LINE_SELECT_MODE(hdcmi->Init.LineSelectMode));
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117 assert_param(IS_DCMI_LINE_SELECT_START(hdcmi->Init.LineSelectStart));
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118 #endif /* STM32F446xx || STM32F469xx || STM32F479xx */
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119 if(hdcmi->State == HAL_DCMI_STATE_RESET)
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120 {
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121 /* Init the low level hardware */
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122 HAL_DCMI_MspInit(hdcmi);
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123 }
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124
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125 /* Change the DCMI state */
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126 hdcmi->State = HAL_DCMI_STATE_BUSY;
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127 /* Configures the HS, VS, DE and PC polarity */
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128 hdcmi->Instance->CR &= ~(DCMI_CR_PCKPOL | DCMI_CR_HSPOL | DCMI_CR_VSPOL | DCMI_CR_EDM_0 |\
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129 DCMI_CR_EDM_1 | DCMI_CR_FCRC_0 | DCMI_CR_FCRC_1 | DCMI_CR_JPEG |\
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130 DCMI_CR_ESS
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131 #if defined(STM32F446xx) || defined(STM32F469xx) || defined(STM32F479xx)
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132 | DCMI_CR_BSM_0 | DCMI_CR_BSM_1 | DCMI_CR_OEBS |\
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133 DCMI_CR_LSM | DCMI_CR_OELS
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134 #endif /* STM32F446xx || STM32F469xx || STM32F479xx */
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135 );
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136 hdcmi->Instance->CR |= (uint32_t)(hdcmi->Init.SynchroMode | hdcmi->Init.CaptureRate |\
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137 hdcmi->Init.VSPolarity | hdcmi->Init.HSPolarity |\
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138 hdcmi->Init.PCKPolarity | hdcmi->Init.ExtendedDataMode |\
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139 hdcmi->Init.JPEGMode
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140 #if defined(STM32F446xx) || defined(STM32F469xx) || defined(STM32F479xx)
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141 | hdcmi->Init.ByteSelectMode |\
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142 hdcmi->Init.ByteSelectStart | hdcmi->Init.LineSelectMode |\
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143 hdcmi->Init.LineSelectStart
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144 #endif /* STM32F446xx || STM32F469xx || STM32F479xx */
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145 );
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146 if(hdcmi->Init.SynchroMode == DCMI_SYNCHRO_EMBEDDED)
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147 {
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148 hdcmi->Instance->ESCR = (((uint32_t)hdcmi->Init.SyncroCode.FrameStartCode) |
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149 ((uint32_t)hdcmi->Init.SyncroCode.LineStartCode << DCMI_POSITION_ESCR_LSC)|
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150 ((uint32_t)hdcmi->Init.SyncroCode.LineEndCode << DCMI_POSITION_ESCR_LEC) |
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151 ((uint32_t)hdcmi->Init.SyncroCode.FrameEndCode << DCMI_POSITION_ESCR_FEC));
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152
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153 }
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154
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155 /* Enable the Line, Vsync, Error and Overrun interrupts */
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156 __HAL_DCMI_ENABLE_IT(hdcmi, DCMI_IT_LINE | DCMI_IT_VSYNC | DCMI_IT_ERR | DCMI_IT_OVR);
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157
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158 /* Update error code */
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159 hdcmi->ErrorCode = HAL_DCMI_ERROR_NONE;
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160
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161 /* Initialize the DCMI state*/
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162 hdcmi->State = HAL_DCMI_STATE_READY;
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163
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164 return HAL_OK;
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165 }
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166
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167 /**
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168 * @}
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169 */
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170 #endif /* STM32F407xx || STM32F417xx || STM32F427xx || STM32F437xx || STM32F429xx ||\
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171 STM32F439xx || STM32F446xx || STM32F469xx || STM32F479xx */
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172 #endif /* HAL_DCMI_MODULE_ENABLED */
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173 /**
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174 * @}
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175 */
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176
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177 /**
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178 * @}
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179 */
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180
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181 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/