Mercurial > public > ostc4
annotate Common/Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_sai_ex.c @ 479:4b9427ae0a65 Improve_Button_Sleep
Bugfix unintended else condition:
Most likely copy past error in preparation of last commit...
author | ideenmodellierer |
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date | Wed, 13 May 2020 21:27:30 +0200 |
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_sai_ex.c |
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4 * @author MCD Application Team |
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5 * @brief SAI 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 SAI 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 ##### SAI peripheral extension features ##### |
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13 ============================================================================== |
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14 |
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15 [..] Comparing to other previous devices, the SAI interface for STM32F446xx |
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16 devices contains the following additional features : |
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17 |
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18 (+) Possibility to be clocked from PLLR |
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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 several sources to clock SAI |
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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 SAIEx SAIEx |
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63 * @brief SAI Extension 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_SAI_MODULE_ENABLED |
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68 |
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69 #if defined(STM32F427xx) || defined(STM32F437xx) || defined(STM32F429xx) || defined(STM32F439xx) || \ |
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70 defined(STM32F446xx) || defined(STM32F469xx) || defined(STM32F479xx) || defined(STM32F413xx) || \ |
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71 defined(STM32F423xx) |
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72 |
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73 /* Private typedef -----------------------------------------------------------*/ |
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74 /* Private define ------------------------------------------------------------*/ |
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75 /* SAI registers Masks */ |
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76 /* Private macro -------------------------------------------------------------*/ |
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77 /* Private variables ---------------------------------------------------------*/ |
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78 /* Private function prototypes -----------------------------------------------*/ |
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79 /* Private functions ---------------------------------------------------------*/ |
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80 |
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81 /** @defgroup SAI_Private_Functions SAI Private Functions |
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82 * @{ |
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83 */ |
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84 /** |
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85 * @} |
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86 */ |
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87 |
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88 /* Exported functions --------------------------------------------------------*/ |
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89 /** @defgroup SAIEx_Exported_Functions SAI Extended Exported Functions |
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90 * @{ |
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91 */ |
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92 |
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93 /** @defgroup SAIEx_Exported_Functions_Group1 Extension features functions |
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94 * @brief Extension features functions |
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95 * |
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96 @verbatim |
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97 =============================================================================== |
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98 ##### Extension features Functions ##### |
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99 =============================================================================== |
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100 [..] |
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101 This subsection provides a set of functions allowing to manage the possible |
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102 SAI clock sources. |
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103 |
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104 @endverbatim |
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105 * @{ |
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106 */ |
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107 |
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108 /** |
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109 * @brief Configure SAI Block synchronization mode |
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110 * @param hsai pointer to a SAI_HandleTypeDef structure that contains |
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111 * the configuration information for SAI module. |
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112 * @retval SAI Clock Input |
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113 */ |
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114 void SAI_BlockSynchroConfig(SAI_HandleTypeDef *hsai) |
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115 { |
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116 uint32_t tmpregisterGCR = 0U; |
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117 |
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118 #if defined(STM32F446xx) |
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119 /* This setting must be done with both audio block (A & B) disabled */ |
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120 switch(hsai->Init.SynchroExt) |
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121 { |
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122 case SAI_SYNCEXT_DISABLE : |
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123 tmpregisterGCR = 0U; |
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124 break; |
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125 case SAI_SYNCEXT_OUTBLOCKA_ENABLE : |
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126 tmpregisterGCR = SAI_GCR_SYNCOUT_0; |
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127 break; |
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128 case SAI_SYNCEXT_OUTBLOCKB_ENABLE : |
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129 tmpregisterGCR = SAI_GCR_SYNCOUT_1; |
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130 break; |
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131 default: |
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132 break; |
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133 } |
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134 |
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135 if((hsai->Init.Synchro) == SAI_SYNCHRONOUS_EXT_SAI2) |
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136 { |
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137 tmpregisterGCR |= SAI_GCR_SYNCIN_0; |
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138 } |
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139 |
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140 if((hsai->Instance == SAI1_Block_A) || (hsai->Instance == SAI1_Block_B)) |
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141 { |
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142 SAI1->GCR = tmpregisterGCR; |
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143 } |
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144 else |
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145 { |
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146 SAI2->GCR = tmpregisterGCR; |
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147 } |
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148 #endif /* STM32F446xx */ |
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149 #if defined(STM32F427xx) || defined(STM32F437xx) || defined(STM32F429xx) || defined(STM32F439xx) || \ |
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150 defined(STM32F469xx) || defined(STM32F479xx) || defined(STM32F413xx) || defined(STM32F423xx) |
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151 /* This setting must be done with both audio block (A & B) disabled */ |
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152 switch(hsai->Init.SynchroExt) |
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153 { |
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154 case SAI_SYNCEXT_DISABLE : |
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155 tmpregisterGCR = 0U; |
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156 break; |
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157 case SAI_SYNCEXT_OUTBLOCKA_ENABLE : |
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158 tmpregisterGCR = SAI_GCR_SYNCOUT_0; |
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159 break; |
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160 case SAI_SYNCEXT_OUTBLOCKB_ENABLE : |
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161 tmpregisterGCR = SAI_GCR_SYNCOUT_1; |
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162 break; |
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163 default: |
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164 break; |
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165 } |
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166 SAI1->GCR = tmpregisterGCR; |
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167 #endif /* STM32F427xx || STM32F437xx || STM32F429xx || STM32F439xx || STM32F469xx || STM32F479xx || STM32F413xx || STM32F423xx */ |
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168 } |
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169 /** |
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170 * @brief Get SAI Input Clock based on SAI source clock selection |
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171 * @param hsai pointer to a SAI_HandleTypeDef structure that contains |
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172 * the configuration information for SAI module. |
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173 * @retval SAI Clock Input |
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174 */ |
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175 uint32_t SAI_GetInputClock(SAI_HandleTypeDef *hsai) |
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176 { |
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177 /* This variable used to store the SAI_CK_x (value in Hz) */ |
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178 uint32_t saiclocksource = 0U; |
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179 |
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180 #if defined(STM32F446xx) |
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181 if ((hsai->Instance == SAI1_Block_A) || (hsai->Instance == SAI1_Block_B)) |
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182 { |
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183 saiclocksource = HAL_RCCEx_GetPeriphCLKFreq(RCC_PERIPHCLK_SAI1); |
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184 } |
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185 else /* SAI2_Block_A || SAI2_Block_B*/ |
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186 { |
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187 saiclocksource = HAL_RCCEx_GetPeriphCLKFreq(RCC_PERIPHCLK_SAI2); |
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188 } |
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189 #endif /* STM32F446xx */ |
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190 #if defined(STM32F427xx) || defined(STM32F437xx) || defined(STM32F429xx) || defined(STM32F439xx) || \ |
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191 defined(STM32F469xx) || defined(STM32F479xx) || defined(STM32F413xx) || defined(STM32F423xx) |
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192 uint32_t vcoinput = 0U, tmpreg = 0U; |
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193 |
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194 /* Check the SAI Block parameters */ |
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195 assert_param(IS_SAI_CLK_SOURCE(hsai->Init.ClockSource)); |
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196 |
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197 /* SAI Block clock source selection */ |
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198 if(hsai->Instance == SAI1_Block_A) |
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199 { |
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200 __HAL_RCC_SAI_BLOCKACLKSOURCE_CONFIG(hsai->Init.ClockSource); |
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201 } |
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202 else |
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203 { |
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204 __HAL_RCC_SAI_BLOCKBCLKSOURCE_CONFIG((uint32_t)(hsai->Init.ClockSource << 2U)); |
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205 } |
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206 |
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207 /* VCO Input Clock value calculation */ |
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208 if((RCC->PLLCFGR & RCC_PLLCFGR_PLLSRC) == RCC_PLLSOURCE_HSI) |
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209 { |
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210 /* In Case the PLL Source is HSI (Internal Clock) */ |
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211 vcoinput = (HSI_VALUE / (uint32_t)(RCC->PLLCFGR & RCC_PLLCFGR_PLLM)); |
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212 } |
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213 else |
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214 { |
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215 /* In Case the PLL Source is HSE (External Clock) */ |
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216 vcoinput = ((HSE_VALUE / (uint32_t)(RCC->PLLCFGR & RCC_PLLCFGR_PLLM))); |
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217 } |
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218 #if defined(STM32F413xx) || defined(STM32F423xx) |
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219 /* SAI_CLK_x : SAI Block Clock configuration for different clock sources selected */ |
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220 if(hsai->Init.ClockSource == SAI_CLKSOURCE_PLLR) |
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221 { |
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222 /* Configure the PLLI2S division factor */ |
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223 /* PLL_VCO Input = PLL_SOURCE/PLLM */ |
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224 /* PLL_VCO Output = PLL_VCO Input * PLLN */ |
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225 /* SAI_CLK(first level) = PLL_VCO Output/PLLR */ |
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226 tmpreg = (RCC->PLLCFGR & RCC_PLLCFGR_PLLR) >> 28U; |
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227 saiclocksource = (vcoinput * ((RCC->PLLCFGR & RCC_PLLCFGR_PLLN) >> 6U))/(tmpreg); |
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228 |
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229 /* SAI_CLK_x = SAI_CLK(first level)/PLLDIVR */ |
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230 tmpreg = (((RCC->DCKCFGR & RCC_DCKCFGR_PLLDIVR) >> 8U) + 1U); |
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231 |
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232 saiclocksource = saiclocksource/(tmpreg); |
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233 |
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234 } |
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235 else if(hsai->Init.ClockSource == SAI_CLKSOURCE_PLLI2S) |
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236 { |
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237 /* Configure the PLLI2S division factor */ |
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238 /* PLLI2S_VCO Input = PLL_SOURCE/PLLM */ |
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239 /* PLLI2S_VCO Output = PLLI2S_VCO Input * PLLI2SN */ |
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240 /* SAI_CLK(first level) = PLLI2S_VCO Output/PLLI2SR */ |
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241 tmpreg = (RCC->PLLI2SCFGR & RCC_PLLI2SCFGR_PLLI2SR) >> 28U; |
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242 saiclocksource = (vcoinput * ((RCC->PLLI2SCFGR & RCC_PLLI2SCFGR_PLLI2SN) >> 6U))/(tmpreg); |
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243 |
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244 /* SAI_CLK_x = SAI_CLK(first level)/PLLI2SDIVR */ |
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245 tmpreg = ((RCC->DCKCFGR & RCC_DCKCFGR_PLLI2SDIVR) + 1U); |
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246 saiclocksource = saiclocksource/(tmpreg); |
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247 } |
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248 else if(hsai->Init.ClockSource == SAI_CLKSOURCE_HS) |
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249 { |
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250 if((RCC->PLLCFGR & RCC_PLLCFGR_PLLSRC) == RCC_PLLSOURCE_HSE) |
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251 { |
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252 /* Get the I2S source clock value */ |
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253 saiclocksource = (uint32_t)(HSE_VALUE); |
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254 } |
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255 else |
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256 { |
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257 /* Get the I2S source clock value */ |
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258 saiclocksource = (uint32_t)(HSI_VALUE); |
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259 } |
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260 } |
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261 else /* sConfig->ClockSource == SAI_CLKSource_Ext */ |
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262 { |
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263 saiclocksource = EXTERNAL_CLOCK_VALUE; |
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264 } |
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265 #else |
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266 /* SAI_CLK_x : SAI Block Clock configuration for different clock sources selected */ |
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267 if(hsai->Init.ClockSource == SAI_CLKSOURCE_PLLSAI) |
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268 { |
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269 /* Configure the PLLI2S division factor */ |
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270 /* PLLSAI_VCO Input = PLL_SOURCE/PLLM */ |
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271 /* PLLSAI_VCO Output = PLLSAI_VCO Input * PLLSAIN */ |
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272 /* SAI_CLK(first level) = PLLSAI_VCO Output/PLLSAIQ */ |
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273 tmpreg = (RCC->PLLSAICFGR & RCC_PLLSAICFGR_PLLSAIQ) >> 24U; |
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274 saiclocksource = (vcoinput * ((RCC->PLLSAICFGR & RCC_PLLSAICFGR_PLLSAIN) >> 6U))/(tmpreg); |
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275 |
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276 /* SAI_CLK_x = SAI_CLK(first level)/PLLSAIDIVQ */ |
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277 tmpreg = (((RCC->DCKCFGR & RCC_DCKCFGR_PLLSAIDIVQ) >> 8U) + 1U); |
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278 saiclocksource = saiclocksource/(tmpreg); |
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279 |
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280 } |
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281 else if(hsai->Init.ClockSource == SAI_CLKSOURCE_PLLI2S) |
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282 { |
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283 /* Configure the PLLI2S division factor */ |
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284 /* PLLI2S_VCO Input = PLL_SOURCE/PLLM */ |
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285 /* PLLI2S_VCO Output = PLLI2S_VCO Input * PLLI2SN */ |
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286 /* SAI_CLK(first level) = PLLI2S_VCO Output/PLLI2SQ */ |
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287 tmpreg = (RCC->PLLI2SCFGR & RCC_PLLI2SCFGR_PLLI2SQ) >> 24U; |
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288 saiclocksource = (vcoinput * ((RCC->PLLI2SCFGR & RCC_PLLI2SCFGR_PLLI2SN) >> 6U))/(tmpreg); |
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289 |
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290 /* SAI_CLK_x = SAI_CLK(first level)/PLLI2SDIVQ */ |
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291 tmpreg = ((RCC->DCKCFGR & RCC_DCKCFGR_PLLI2SDIVQ) + 1U); |
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292 saiclocksource = saiclocksource/(tmpreg); |
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293 } |
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294 else /* sConfig->ClockSource == SAI_CLKSource_Ext */ |
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295 { |
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296 /* Enable the External Clock selection */ |
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297 __HAL_RCC_I2S_CONFIG(RCC_I2SCLKSOURCE_EXT); |
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298 |
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299 saiclocksource = EXTERNAL_CLOCK_VALUE; |
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300 } |
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301 #endif /* STM32F413xx || STM32F423xx */ |
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302 #endif /* STM32F427xx || STM32F437xx || STM32F429xx || STM32F439xx || STM32F469xx || STM32F479xx || STM32F413xx || STM32F423xx */ |
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303 /* the return result is the value of SAI clock */ |
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304 return saiclocksource; |
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305 } |
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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 |
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311 /** |
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312 * @} |
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313 */ |
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314 |
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315 #endif /* STM32F427xx || STM32F437xx || STM32F429xx || STM32F439xx || STM32F446xx || STM32F469xx || STM32F479xx || STM32F413xx || STM32F423xx */ |
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316 #endif /* HAL_SAI_MODULE_ENABLED */ |
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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 * @} |
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323 */ |
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324 |
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325 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/ |