Initial commit
mbed-dev-master/targets/TARGET_STM/TARGET_STM32F4/device/stm32f4xx_hal_sai_ex.c@0:bb348c97df44, 2020-09-16 (annotated)
- Committer:
- lypinator
- Date:
- Wed Sep 16 01:11:49 2020 +0000
- Revision:
- 0:bb348c97df44
Added PWM
Who changed what in which revision?
User | Revision | Line number | New contents of line |
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lypinator | 0:bb348c97df44 | 1 | /** |
lypinator | 0:bb348c97df44 | 2 | ****************************************************************************** |
lypinator | 0:bb348c97df44 | 3 | * @file stm32f4xx_hal_sai_ex.c |
lypinator | 0:bb348c97df44 | 4 | * @author MCD Application Team |
lypinator | 0:bb348c97df44 | 5 | * @brief SAI Extension HAL module driver. |
lypinator | 0:bb348c97df44 | 6 | * This file provides firmware functions to manage the following |
lypinator | 0:bb348c97df44 | 7 | * functionalities of SAI extension peripheral: |
lypinator | 0:bb348c97df44 | 8 | * + Extension features functions |
lypinator | 0:bb348c97df44 | 9 | * |
lypinator | 0:bb348c97df44 | 10 | @verbatim |
lypinator | 0:bb348c97df44 | 11 | ============================================================================== |
lypinator | 0:bb348c97df44 | 12 | ##### SAI peripheral extension features ##### |
lypinator | 0:bb348c97df44 | 13 | ============================================================================== |
lypinator | 0:bb348c97df44 | 14 | |
lypinator | 0:bb348c97df44 | 15 | [..] Comparing to other previous devices, the SAI interface for STM32F446xx |
lypinator | 0:bb348c97df44 | 16 | devices contains the following additional features : |
lypinator | 0:bb348c97df44 | 17 | |
lypinator | 0:bb348c97df44 | 18 | (+) Possibility to be clocked from PLLR |
lypinator | 0:bb348c97df44 | 19 | |
lypinator | 0:bb348c97df44 | 20 | ##### How to use this driver ##### |
lypinator | 0:bb348c97df44 | 21 | ============================================================================== |
lypinator | 0:bb348c97df44 | 22 | [..] This driver provides functions to manage several sources to clock SAI |
lypinator | 0:bb348c97df44 | 23 | |
lypinator | 0:bb348c97df44 | 24 | @endverbatim |
lypinator | 0:bb348c97df44 | 25 | ****************************************************************************** |
lypinator | 0:bb348c97df44 | 26 | * @attention |
lypinator | 0:bb348c97df44 | 27 | * |
lypinator | 0:bb348c97df44 | 28 | * <h2><center>© COPYRIGHT(c) 2017 STMicroelectronics</center></h2> |
lypinator | 0:bb348c97df44 | 29 | * |
lypinator | 0:bb348c97df44 | 30 | * Redistribution and use in source and binary forms, with or without modification, |
lypinator | 0:bb348c97df44 | 31 | * are permitted provided that the following conditions are met: |
lypinator | 0:bb348c97df44 | 32 | * 1. Redistributions of source code must retain the above copyright notice, |
lypinator | 0:bb348c97df44 | 33 | * this list of conditions and the following disclaimer. |
lypinator | 0:bb348c97df44 | 34 | * 2. Redistributions in binary form must reproduce the above copyright notice, |
lypinator | 0:bb348c97df44 | 35 | * this list of conditions and the following disclaimer in the documentation |
lypinator | 0:bb348c97df44 | 36 | * and/or other materials provided with the distribution. |
lypinator | 0:bb348c97df44 | 37 | * 3. Neither the name of STMicroelectronics nor the names of its contributors |
lypinator | 0:bb348c97df44 | 38 | * may be used to endorse or promote products derived from this software |
lypinator | 0:bb348c97df44 | 39 | * without specific prior written permission. |
lypinator | 0:bb348c97df44 | 40 | * |
lypinator | 0:bb348c97df44 | 41 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
lypinator | 0:bb348c97df44 | 42 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
lypinator | 0:bb348c97df44 | 43 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
lypinator | 0:bb348c97df44 | 44 | * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE |
lypinator | 0:bb348c97df44 | 45 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
lypinator | 0:bb348c97df44 | 46 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR |
lypinator | 0:bb348c97df44 | 47 | * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER |
lypinator | 0:bb348c97df44 | 48 | * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
lypinator | 0:bb348c97df44 | 49 | * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
lypinator | 0:bb348c97df44 | 50 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
lypinator | 0:bb348c97df44 | 51 | * |
lypinator | 0:bb348c97df44 | 52 | ****************************************************************************** |
lypinator | 0:bb348c97df44 | 53 | */ |
lypinator | 0:bb348c97df44 | 54 | |
lypinator | 0:bb348c97df44 | 55 | /* Includes ------------------------------------------------------------------*/ |
lypinator | 0:bb348c97df44 | 56 | #include "stm32f4xx_hal.h" |
lypinator | 0:bb348c97df44 | 57 | |
lypinator | 0:bb348c97df44 | 58 | /** @addtogroup STM32F4xx_HAL_Driver |
lypinator | 0:bb348c97df44 | 59 | * @{ |
lypinator | 0:bb348c97df44 | 60 | */ |
lypinator | 0:bb348c97df44 | 61 | |
lypinator | 0:bb348c97df44 | 62 | /** @defgroup SAIEx SAIEx |
lypinator | 0:bb348c97df44 | 63 | * @brief SAI Extension HAL module driver |
lypinator | 0:bb348c97df44 | 64 | * @{ |
lypinator | 0:bb348c97df44 | 65 | */ |
lypinator | 0:bb348c97df44 | 66 | |
lypinator | 0:bb348c97df44 | 67 | #ifdef HAL_SAI_MODULE_ENABLED |
lypinator | 0:bb348c97df44 | 68 | |
lypinator | 0:bb348c97df44 | 69 | #if defined(STM32F427xx) || defined(STM32F437xx) || defined(STM32F429xx) || defined(STM32F439xx) || \ |
lypinator | 0:bb348c97df44 | 70 | defined(STM32F446xx) || defined(STM32F469xx) || defined(STM32F479xx) || defined(STM32F413xx) || \ |
lypinator | 0:bb348c97df44 | 71 | defined(STM32F423xx) |
lypinator | 0:bb348c97df44 | 72 | |
lypinator | 0:bb348c97df44 | 73 | /* Private typedef -----------------------------------------------------------*/ |
lypinator | 0:bb348c97df44 | 74 | /* Private define ------------------------------------------------------------*/ |
lypinator | 0:bb348c97df44 | 75 | /* SAI registers Masks */ |
lypinator | 0:bb348c97df44 | 76 | /* Private macro -------------------------------------------------------------*/ |
lypinator | 0:bb348c97df44 | 77 | /* Private variables ---------------------------------------------------------*/ |
lypinator | 0:bb348c97df44 | 78 | /* Private function prototypes -----------------------------------------------*/ |
lypinator | 0:bb348c97df44 | 79 | /* Private functions ---------------------------------------------------------*/ |
lypinator | 0:bb348c97df44 | 80 | |
lypinator | 0:bb348c97df44 | 81 | /** @defgroup SAI_Private_Functions SAI Private Functions |
lypinator | 0:bb348c97df44 | 82 | * @{ |
lypinator | 0:bb348c97df44 | 83 | */ |
lypinator | 0:bb348c97df44 | 84 | /** |
lypinator | 0:bb348c97df44 | 85 | * @} |
lypinator | 0:bb348c97df44 | 86 | */ |
lypinator | 0:bb348c97df44 | 87 | |
lypinator | 0:bb348c97df44 | 88 | /* Exported functions --------------------------------------------------------*/ |
lypinator | 0:bb348c97df44 | 89 | /** @defgroup SAIEx_Exported_Functions SAI Extended Exported Functions |
lypinator | 0:bb348c97df44 | 90 | * @{ |
lypinator | 0:bb348c97df44 | 91 | */ |
lypinator | 0:bb348c97df44 | 92 | |
lypinator | 0:bb348c97df44 | 93 | /** @defgroup SAIEx_Exported_Functions_Group1 Extension features functions |
lypinator | 0:bb348c97df44 | 94 | * @brief Extension features functions |
lypinator | 0:bb348c97df44 | 95 | * |
lypinator | 0:bb348c97df44 | 96 | @verbatim |
lypinator | 0:bb348c97df44 | 97 | =============================================================================== |
lypinator | 0:bb348c97df44 | 98 | ##### Extension features Functions ##### |
lypinator | 0:bb348c97df44 | 99 | =============================================================================== |
lypinator | 0:bb348c97df44 | 100 | [..] |
lypinator | 0:bb348c97df44 | 101 | This subsection provides a set of functions allowing to manage the possible |
lypinator | 0:bb348c97df44 | 102 | SAI clock sources. |
lypinator | 0:bb348c97df44 | 103 | |
lypinator | 0:bb348c97df44 | 104 | @endverbatim |
lypinator | 0:bb348c97df44 | 105 | * @{ |
lypinator | 0:bb348c97df44 | 106 | */ |
lypinator | 0:bb348c97df44 | 107 | |
lypinator | 0:bb348c97df44 | 108 | /** |
lypinator | 0:bb348c97df44 | 109 | * @brief Configure SAI Block synchronization mode |
lypinator | 0:bb348c97df44 | 110 | * @param hsai pointer to a SAI_HandleTypeDef structure that contains |
lypinator | 0:bb348c97df44 | 111 | * the configuration information for SAI module. |
lypinator | 0:bb348c97df44 | 112 | * @retval SAI Clock Input |
lypinator | 0:bb348c97df44 | 113 | */ |
lypinator | 0:bb348c97df44 | 114 | void SAI_BlockSynchroConfig(SAI_HandleTypeDef *hsai) |
lypinator | 0:bb348c97df44 | 115 | { |
lypinator | 0:bb348c97df44 | 116 | uint32_t tmpregisterGCR = 0U; |
lypinator | 0:bb348c97df44 | 117 | |
lypinator | 0:bb348c97df44 | 118 | #if defined(STM32F446xx) |
lypinator | 0:bb348c97df44 | 119 | /* This setting must be done with both audio block (A & B) disabled */ |
lypinator | 0:bb348c97df44 | 120 | switch(hsai->Init.SynchroExt) |
lypinator | 0:bb348c97df44 | 121 | { |
lypinator | 0:bb348c97df44 | 122 | case SAI_SYNCEXT_DISABLE : |
lypinator | 0:bb348c97df44 | 123 | tmpregisterGCR = 0U; |
lypinator | 0:bb348c97df44 | 124 | break; |
lypinator | 0:bb348c97df44 | 125 | case SAI_SYNCEXT_OUTBLOCKA_ENABLE : |
lypinator | 0:bb348c97df44 | 126 | tmpregisterGCR = SAI_GCR_SYNCOUT_0; |
lypinator | 0:bb348c97df44 | 127 | break; |
lypinator | 0:bb348c97df44 | 128 | case SAI_SYNCEXT_OUTBLOCKB_ENABLE : |
lypinator | 0:bb348c97df44 | 129 | tmpregisterGCR = SAI_GCR_SYNCOUT_1; |
lypinator | 0:bb348c97df44 | 130 | break; |
lypinator | 0:bb348c97df44 | 131 | default: |
lypinator | 0:bb348c97df44 | 132 | break; |
lypinator | 0:bb348c97df44 | 133 | } |
lypinator | 0:bb348c97df44 | 134 | |
lypinator | 0:bb348c97df44 | 135 | if((hsai->Init.Synchro) == SAI_SYNCHRONOUS_EXT_SAI2) |
lypinator | 0:bb348c97df44 | 136 | { |
lypinator | 0:bb348c97df44 | 137 | tmpregisterGCR |= SAI_GCR_SYNCIN_0; |
lypinator | 0:bb348c97df44 | 138 | } |
lypinator | 0:bb348c97df44 | 139 | |
lypinator | 0:bb348c97df44 | 140 | if((hsai->Instance == SAI1_Block_A) || (hsai->Instance == SAI1_Block_B)) |
lypinator | 0:bb348c97df44 | 141 | { |
lypinator | 0:bb348c97df44 | 142 | SAI1->GCR = tmpregisterGCR; |
lypinator | 0:bb348c97df44 | 143 | } |
lypinator | 0:bb348c97df44 | 144 | else |
lypinator | 0:bb348c97df44 | 145 | { |
lypinator | 0:bb348c97df44 | 146 | SAI2->GCR = tmpregisterGCR; |
lypinator | 0:bb348c97df44 | 147 | } |
lypinator | 0:bb348c97df44 | 148 | #endif /* STM32F446xx */ |
lypinator | 0:bb348c97df44 | 149 | #if defined(STM32F427xx) || defined(STM32F437xx) || defined(STM32F429xx) || defined(STM32F439xx) || \ |
lypinator | 0:bb348c97df44 | 150 | defined(STM32F469xx) || defined(STM32F479xx) || defined(STM32F413xx) || defined(STM32F423xx) |
lypinator | 0:bb348c97df44 | 151 | /* This setting must be done with both audio block (A & B) disabled */ |
lypinator | 0:bb348c97df44 | 152 | switch(hsai->Init.SynchroExt) |
lypinator | 0:bb348c97df44 | 153 | { |
lypinator | 0:bb348c97df44 | 154 | case SAI_SYNCEXT_DISABLE : |
lypinator | 0:bb348c97df44 | 155 | tmpregisterGCR = 0U; |
lypinator | 0:bb348c97df44 | 156 | break; |
lypinator | 0:bb348c97df44 | 157 | case SAI_SYNCEXT_OUTBLOCKA_ENABLE : |
lypinator | 0:bb348c97df44 | 158 | tmpregisterGCR = SAI_GCR_SYNCOUT_0; |
lypinator | 0:bb348c97df44 | 159 | break; |
lypinator | 0:bb348c97df44 | 160 | case SAI_SYNCEXT_OUTBLOCKB_ENABLE : |
lypinator | 0:bb348c97df44 | 161 | tmpregisterGCR = SAI_GCR_SYNCOUT_1; |
lypinator | 0:bb348c97df44 | 162 | break; |
lypinator | 0:bb348c97df44 | 163 | default: |
lypinator | 0:bb348c97df44 | 164 | break; |
lypinator | 0:bb348c97df44 | 165 | } |
lypinator | 0:bb348c97df44 | 166 | SAI1->GCR = tmpregisterGCR; |
lypinator | 0:bb348c97df44 | 167 | #endif /* STM32F427xx || STM32F437xx || STM32F429xx || STM32F439xx || STM32F469xx || STM32F479xx || STM32F413xx || STM32F423xx */ |
lypinator | 0:bb348c97df44 | 168 | } |
lypinator | 0:bb348c97df44 | 169 | /** |
lypinator | 0:bb348c97df44 | 170 | * @brief Get SAI Input Clock based on SAI source clock selection |
lypinator | 0:bb348c97df44 | 171 | * @param hsai pointer to a SAI_HandleTypeDef structure that contains |
lypinator | 0:bb348c97df44 | 172 | * the configuration information for SAI module. |
lypinator | 0:bb348c97df44 | 173 | * @retval SAI Clock Input |
lypinator | 0:bb348c97df44 | 174 | */ |
lypinator | 0:bb348c97df44 | 175 | uint32_t SAI_GetInputClock(SAI_HandleTypeDef *hsai) |
lypinator | 0:bb348c97df44 | 176 | { |
lypinator | 0:bb348c97df44 | 177 | /* This variable used to store the SAI_CK_x (value in Hz) */ |
lypinator | 0:bb348c97df44 | 178 | uint32_t saiclocksource = 0U; |
lypinator | 0:bb348c97df44 | 179 | |
lypinator | 0:bb348c97df44 | 180 | #if defined(STM32F446xx) |
lypinator | 0:bb348c97df44 | 181 | if ((hsai->Instance == SAI1_Block_A) || (hsai->Instance == SAI1_Block_B)) |
lypinator | 0:bb348c97df44 | 182 | { |
lypinator | 0:bb348c97df44 | 183 | saiclocksource = HAL_RCCEx_GetPeriphCLKFreq(RCC_PERIPHCLK_SAI1); |
lypinator | 0:bb348c97df44 | 184 | } |
lypinator | 0:bb348c97df44 | 185 | else /* SAI2_Block_A || SAI2_Block_B*/ |
lypinator | 0:bb348c97df44 | 186 | { |
lypinator | 0:bb348c97df44 | 187 | saiclocksource = HAL_RCCEx_GetPeriphCLKFreq(RCC_PERIPHCLK_SAI2); |
lypinator | 0:bb348c97df44 | 188 | } |
lypinator | 0:bb348c97df44 | 189 | #endif /* STM32F446xx */ |
lypinator | 0:bb348c97df44 | 190 | #if defined(STM32F427xx) || defined(STM32F437xx) || defined(STM32F429xx) || defined(STM32F439xx) || \ |
lypinator | 0:bb348c97df44 | 191 | defined(STM32F469xx) || defined(STM32F479xx) || defined(STM32F413xx) || defined(STM32F423xx) |
lypinator | 0:bb348c97df44 | 192 | uint32_t vcoinput = 0U, tmpreg = 0U; |
lypinator | 0:bb348c97df44 | 193 | |
lypinator | 0:bb348c97df44 | 194 | /* Check the SAI Block parameters */ |
lypinator | 0:bb348c97df44 | 195 | assert_param(IS_SAI_CLK_SOURCE(hsai->Init.ClockSource)); |
lypinator | 0:bb348c97df44 | 196 | |
lypinator | 0:bb348c97df44 | 197 | /* SAI Block clock source selection */ |
lypinator | 0:bb348c97df44 | 198 | if(hsai->Instance == SAI1_Block_A) |
lypinator | 0:bb348c97df44 | 199 | { |
lypinator | 0:bb348c97df44 | 200 | __HAL_RCC_SAI_BLOCKACLKSOURCE_CONFIG(hsai->Init.ClockSource); |
lypinator | 0:bb348c97df44 | 201 | } |
lypinator | 0:bb348c97df44 | 202 | else |
lypinator | 0:bb348c97df44 | 203 | { |
lypinator | 0:bb348c97df44 | 204 | __HAL_RCC_SAI_BLOCKBCLKSOURCE_CONFIG((uint32_t)(hsai->Init.ClockSource << 2U)); |
lypinator | 0:bb348c97df44 | 205 | } |
lypinator | 0:bb348c97df44 | 206 | |
lypinator | 0:bb348c97df44 | 207 | /* VCO Input Clock value calculation */ |
lypinator | 0:bb348c97df44 | 208 | if((RCC->PLLCFGR & RCC_PLLCFGR_PLLSRC) == RCC_PLLSOURCE_HSI) |
lypinator | 0:bb348c97df44 | 209 | { |
lypinator | 0:bb348c97df44 | 210 | /* In Case the PLL Source is HSI (Internal Clock) */ |
lypinator | 0:bb348c97df44 | 211 | vcoinput = (HSI_VALUE / (uint32_t)(RCC->PLLCFGR & RCC_PLLCFGR_PLLM)); |
lypinator | 0:bb348c97df44 | 212 | } |
lypinator | 0:bb348c97df44 | 213 | else |
lypinator | 0:bb348c97df44 | 214 | { |
lypinator | 0:bb348c97df44 | 215 | /* In Case the PLL Source is HSE (External Clock) */ |
lypinator | 0:bb348c97df44 | 216 | vcoinput = ((HSE_VALUE / (uint32_t)(RCC->PLLCFGR & RCC_PLLCFGR_PLLM))); |
lypinator | 0:bb348c97df44 | 217 | } |
lypinator | 0:bb348c97df44 | 218 | #if defined(STM32F413xx) || defined(STM32F423xx) |
lypinator | 0:bb348c97df44 | 219 | /* SAI_CLK_x : SAI Block Clock configuration for different clock sources selected */ |
lypinator | 0:bb348c97df44 | 220 | if(hsai->Init.ClockSource == SAI_CLKSOURCE_PLLR) |
lypinator | 0:bb348c97df44 | 221 | { |
lypinator | 0:bb348c97df44 | 222 | /* Configure the PLLI2S division factor */ |
lypinator | 0:bb348c97df44 | 223 | /* PLL_VCO Input = PLL_SOURCE/PLLM */ |
lypinator | 0:bb348c97df44 | 224 | /* PLL_VCO Output = PLL_VCO Input * PLLN */ |
lypinator | 0:bb348c97df44 | 225 | /* SAI_CLK(first level) = PLL_VCO Output/PLLR */ |
lypinator | 0:bb348c97df44 | 226 | tmpreg = (RCC->PLLCFGR & RCC_PLLCFGR_PLLR) >> 28U; |
lypinator | 0:bb348c97df44 | 227 | saiclocksource = (vcoinput * ((RCC->PLLCFGR & RCC_PLLCFGR_PLLN) >> 6U))/(tmpreg); |
lypinator | 0:bb348c97df44 | 228 | |
lypinator | 0:bb348c97df44 | 229 | /* SAI_CLK_x = SAI_CLK(first level)/PLLDIVR */ |
lypinator | 0:bb348c97df44 | 230 | tmpreg = (((RCC->DCKCFGR & RCC_DCKCFGR_PLLDIVR) >> 8U) + 1U); |
lypinator | 0:bb348c97df44 | 231 | |
lypinator | 0:bb348c97df44 | 232 | saiclocksource = saiclocksource/(tmpreg); |
lypinator | 0:bb348c97df44 | 233 | |
lypinator | 0:bb348c97df44 | 234 | } |
lypinator | 0:bb348c97df44 | 235 | else if(hsai->Init.ClockSource == SAI_CLKSOURCE_PLLI2S) |
lypinator | 0:bb348c97df44 | 236 | { |
lypinator | 0:bb348c97df44 | 237 | /* Configure the PLLI2S division factor */ |
lypinator | 0:bb348c97df44 | 238 | /* PLLI2S_VCO Input = PLL_SOURCE/PLLM */ |
lypinator | 0:bb348c97df44 | 239 | /* PLLI2S_VCO Output = PLLI2S_VCO Input * PLLI2SN */ |
lypinator | 0:bb348c97df44 | 240 | /* SAI_CLK(first level) = PLLI2S_VCO Output/PLLI2SR */ |
lypinator | 0:bb348c97df44 | 241 | tmpreg = (RCC->PLLI2SCFGR & RCC_PLLI2SCFGR_PLLI2SR) >> 28U; |
lypinator | 0:bb348c97df44 | 242 | saiclocksource = (vcoinput * ((RCC->PLLI2SCFGR & RCC_PLLI2SCFGR_PLLI2SN) >> 6U))/(tmpreg); |
lypinator | 0:bb348c97df44 | 243 | |
lypinator | 0:bb348c97df44 | 244 | /* SAI_CLK_x = SAI_CLK(first level)/PLLI2SDIVR */ |
lypinator | 0:bb348c97df44 | 245 | tmpreg = ((RCC->DCKCFGR & RCC_DCKCFGR_PLLI2SDIVR) + 1U); |
lypinator | 0:bb348c97df44 | 246 | saiclocksource = saiclocksource/(tmpreg); |
lypinator | 0:bb348c97df44 | 247 | } |
lypinator | 0:bb348c97df44 | 248 | else if(hsai->Init.ClockSource == SAI_CLKSOURCE_HS) |
lypinator | 0:bb348c97df44 | 249 | { |
lypinator | 0:bb348c97df44 | 250 | if((RCC->PLLCFGR & RCC_PLLCFGR_PLLSRC) == RCC_PLLSOURCE_HSE) |
lypinator | 0:bb348c97df44 | 251 | { |
lypinator | 0:bb348c97df44 | 252 | /* Get the I2S source clock value */ |
lypinator | 0:bb348c97df44 | 253 | saiclocksource = (uint32_t)(HSE_VALUE); |
lypinator | 0:bb348c97df44 | 254 | } |
lypinator | 0:bb348c97df44 | 255 | else |
lypinator | 0:bb348c97df44 | 256 | { |
lypinator | 0:bb348c97df44 | 257 | /* Get the I2S source clock value */ |
lypinator | 0:bb348c97df44 | 258 | saiclocksource = (uint32_t)(HSI_VALUE); |
lypinator | 0:bb348c97df44 | 259 | } |
lypinator | 0:bb348c97df44 | 260 | } |
lypinator | 0:bb348c97df44 | 261 | else /* sConfig->ClockSource == SAI_CLKSource_Ext */ |
lypinator | 0:bb348c97df44 | 262 | { |
lypinator | 0:bb348c97df44 | 263 | saiclocksource = EXTERNAL_CLOCK_VALUE; |
lypinator | 0:bb348c97df44 | 264 | } |
lypinator | 0:bb348c97df44 | 265 | #else |
lypinator | 0:bb348c97df44 | 266 | /* SAI_CLK_x : SAI Block Clock configuration for different clock sources selected */ |
lypinator | 0:bb348c97df44 | 267 | if(hsai->Init.ClockSource == SAI_CLKSOURCE_PLLSAI) |
lypinator | 0:bb348c97df44 | 268 | { |
lypinator | 0:bb348c97df44 | 269 | /* Configure the PLLI2S division factor */ |
lypinator | 0:bb348c97df44 | 270 | /* PLLSAI_VCO Input = PLL_SOURCE/PLLM */ |
lypinator | 0:bb348c97df44 | 271 | /* PLLSAI_VCO Output = PLLSAI_VCO Input * PLLSAIN */ |
lypinator | 0:bb348c97df44 | 272 | /* SAI_CLK(first level) = PLLSAI_VCO Output/PLLSAIQ */ |
lypinator | 0:bb348c97df44 | 273 | tmpreg = (RCC->PLLSAICFGR & RCC_PLLSAICFGR_PLLSAIQ) >> 24U; |
lypinator | 0:bb348c97df44 | 274 | saiclocksource = (vcoinput * ((RCC->PLLSAICFGR & RCC_PLLSAICFGR_PLLSAIN) >> 6U))/(tmpreg); |
lypinator | 0:bb348c97df44 | 275 | |
lypinator | 0:bb348c97df44 | 276 | /* SAI_CLK_x = SAI_CLK(first level)/PLLSAIDIVQ */ |
lypinator | 0:bb348c97df44 | 277 | tmpreg = (((RCC->DCKCFGR & RCC_DCKCFGR_PLLSAIDIVQ) >> 8U) + 1U); |
lypinator | 0:bb348c97df44 | 278 | saiclocksource = saiclocksource/(tmpreg); |
lypinator | 0:bb348c97df44 | 279 | |
lypinator | 0:bb348c97df44 | 280 | } |
lypinator | 0:bb348c97df44 | 281 | else if(hsai->Init.ClockSource == SAI_CLKSOURCE_PLLI2S) |
lypinator | 0:bb348c97df44 | 282 | { |
lypinator | 0:bb348c97df44 | 283 | /* Configure the PLLI2S division factor */ |
lypinator | 0:bb348c97df44 | 284 | /* PLLI2S_VCO Input = PLL_SOURCE/PLLM */ |
lypinator | 0:bb348c97df44 | 285 | /* PLLI2S_VCO Output = PLLI2S_VCO Input * PLLI2SN */ |
lypinator | 0:bb348c97df44 | 286 | /* SAI_CLK(first level) = PLLI2S_VCO Output/PLLI2SQ */ |
lypinator | 0:bb348c97df44 | 287 | tmpreg = (RCC->PLLI2SCFGR & RCC_PLLI2SCFGR_PLLI2SQ) >> 24U; |
lypinator | 0:bb348c97df44 | 288 | saiclocksource = (vcoinput * ((RCC->PLLI2SCFGR & RCC_PLLI2SCFGR_PLLI2SN) >> 6U))/(tmpreg); |
lypinator | 0:bb348c97df44 | 289 | |
lypinator | 0:bb348c97df44 | 290 | /* SAI_CLK_x = SAI_CLK(first level)/PLLI2SDIVQ */ |
lypinator | 0:bb348c97df44 | 291 | tmpreg = ((RCC->DCKCFGR & RCC_DCKCFGR_PLLI2SDIVQ) + 1U); |
lypinator | 0:bb348c97df44 | 292 | saiclocksource = saiclocksource/(tmpreg); |
lypinator | 0:bb348c97df44 | 293 | } |
lypinator | 0:bb348c97df44 | 294 | else /* sConfig->ClockSource == SAI_CLKSource_Ext */ |
lypinator | 0:bb348c97df44 | 295 | { |
lypinator | 0:bb348c97df44 | 296 | /* Enable the External Clock selection */ |
lypinator | 0:bb348c97df44 | 297 | __HAL_RCC_I2S_CONFIG(RCC_I2SCLKSOURCE_EXT); |
lypinator | 0:bb348c97df44 | 298 | |
lypinator | 0:bb348c97df44 | 299 | saiclocksource = EXTERNAL_CLOCK_VALUE; |
lypinator | 0:bb348c97df44 | 300 | } |
lypinator | 0:bb348c97df44 | 301 | #endif /* STM32F413xx || STM32F423xx */ |
lypinator | 0:bb348c97df44 | 302 | #endif /* STM32F427xx || STM32F437xx || STM32F429xx || STM32F439xx || STM32F469xx || STM32F479xx || STM32F413xx || STM32F423xx */ |
lypinator | 0:bb348c97df44 | 303 | /* the return result is the value of SAI clock */ |
lypinator | 0:bb348c97df44 | 304 | return saiclocksource; |
lypinator | 0:bb348c97df44 | 305 | } |
lypinator | 0:bb348c97df44 | 306 | |
lypinator | 0:bb348c97df44 | 307 | /** |
lypinator | 0:bb348c97df44 | 308 | * @} |
lypinator | 0:bb348c97df44 | 309 | */ |
lypinator | 0:bb348c97df44 | 310 | |
lypinator | 0:bb348c97df44 | 311 | /** |
lypinator | 0:bb348c97df44 | 312 | * @} |
lypinator | 0:bb348c97df44 | 313 | */ |
lypinator | 0:bb348c97df44 | 314 | |
lypinator | 0:bb348c97df44 | 315 | #endif /* STM32F427xx || STM32F437xx || STM32F429xx || STM32F439xx || STM32F446xx || STM32F469xx || STM32F479xx || STM32F413xx || STM32F423xx */ |
lypinator | 0:bb348c97df44 | 316 | #endif /* HAL_SAI_MODULE_ENABLED */ |
lypinator | 0:bb348c97df44 | 317 | /** |
lypinator | 0:bb348c97df44 | 318 | * @} |
lypinator | 0:bb348c97df44 | 319 | */ |
lypinator | 0:bb348c97df44 | 320 | |
lypinator | 0:bb348c97df44 | 321 | /** |
lypinator | 0:bb348c97df44 | 322 | * @} |
lypinator | 0:bb348c97df44 | 323 | */ |
lypinator | 0:bb348c97df44 | 324 | |
lypinator | 0:bb348c97df44 | 325 | /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/ |