stm32l4xx_ll_rcc.c 65 KB

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  1. /**
  2. ******************************************************************************
  3. * @file stm32l4xx_ll_rcc.c
  4. * @author MCD Application Team
  5. * @brief RCC LL module driver.
  6. ******************************************************************************
  7. * @attention
  8. *
  9. * Copyright (c) 2017 STMicroelectronics.
  10. * All rights reserved.
  11. *
  12. * This software is licensed under terms that can be found in the LICENSE file in
  13. * the root directory of this software component.
  14. * If no LICENSE file comes with this software, it is provided AS-IS.
  15. ******************************************************************************
  16. */
  17. #if defined(USE_FULL_LL_DRIVER)
  18. /* Includes ------------------------------------------------------------------*/
  19. #include "stm32l4xx_ll_rcc.h"
  20. #ifdef USE_FULL_ASSERT
  21. #include "stm32_assert.h"
  22. #else
  23. #define assert_param(expr) ((void)0U)
  24. #endif
  25. /** @addtogroup STM32L4xx_LL_Driver
  26. * @{
  27. */
  28. #if defined(RCC)
  29. /** @addtogroup RCC_LL
  30. * @{
  31. */
  32. /* Private types -------------------------------------------------------------*/
  33. /* Private variables ---------------------------------------------------------*/
  34. /* Private constants ---------------------------------------------------------*/
  35. /* Private macros ------------------------------------------------------------*/
  36. /** @addtogroup RCC_LL_Private_Macros
  37. * @{
  38. */
  39. #if defined(RCC_CCIPR_USART3SEL)
  40. #define IS_LL_RCC_USART_CLKSOURCE(__VALUE__) (((__VALUE__) == LL_RCC_USART1_CLKSOURCE) \
  41. || ((__VALUE__) == LL_RCC_USART2_CLKSOURCE) \
  42. || ((__VALUE__) == LL_RCC_USART3_CLKSOURCE))
  43. #else
  44. #define IS_LL_RCC_USART_CLKSOURCE(__VALUE__) (((__VALUE__) == LL_RCC_USART1_CLKSOURCE) \
  45. || ((__VALUE__) == LL_RCC_USART2_CLKSOURCE))
  46. #endif /* RCC_CCIPR_USART3SEL */
  47. #if defined(RCC_CCIPR_UART4SEL) && defined(RCC_CCIPR_UART5SEL)
  48. #define IS_LL_RCC_UART_CLKSOURCE(__VALUE__) (((__VALUE__) == LL_RCC_UART4_CLKSOURCE) \
  49. || ((__VALUE__) == LL_RCC_UART5_CLKSOURCE))
  50. #elif defined(RCC_CCIPR_UART4SEL)
  51. #define IS_LL_RCC_UART_CLKSOURCE(__VALUE__) ((__VALUE__) == LL_RCC_UART4_CLKSOURCE)
  52. #elif defined(RCC_CCIPR_UART5SEL)
  53. #define IS_LL_RCC_UART_CLKSOURCE(__VALUE__) ((__VALUE__) == LL_RCC_UART5_CLKSOURCE)
  54. #endif /* RCC_CCIPR_UART4SEL && RCC_CCIPR_UART5SEL*/
  55. #define IS_LL_RCC_LPUART_CLKSOURCE(__VALUE__) (((__VALUE__) == LL_RCC_LPUART1_CLKSOURCE))
  56. #if defined(RCC_CCIPR_I2C2SEL) && defined(RCC_CCIPR_I2C3SEL) && defined(RCC_CCIPR2_I2C4SEL)
  57. #define IS_LL_RCC_I2C_CLKSOURCE(__VALUE__) (((__VALUE__) == LL_RCC_I2C1_CLKSOURCE) \
  58. || ((__VALUE__) == LL_RCC_I2C2_CLKSOURCE) \
  59. || ((__VALUE__) == LL_RCC_I2C3_CLKSOURCE) \
  60. || ((__VALUE__) == LL_RCC_I2C4_CLKSOURCE))
  61. #elif defined(RCC_CCIPR_I2C2SEL) && defined(RCC_CCIPR_I2C3SEL)
  62. #define IS_LL_RCC_I2C_CLKSOURCE(__VALUE__) (((__VALUE__) == LL_RCC_I2C1_CLKSOURCE) \
  63. || ((__VALUE__) == LL_RCC_I2C2_CLKSOURCE) \
  64. || ((__VALUE__) == LL_RCC_I2C3_CLKSOURCE))
  65. #elif !defined(RCC_CCIPR_I2C2SEL) && defined(RCC_CCIPR_I2C3SEL)
  66. #define IS_LL_RCC_I2C_CLKSOURCE(__VALUE__) (((__VALUE__) == LL_RCC_I2C1_CLKSOURCE) \
  67. || ((__VALUE__) == LL_RCC_I2C3_CLKSOURCE))
  68. #else
  69. #define IS_LL_RCC_I2C_CLKSOURCE(__VALUE__) ((__VALUE__) == LL_RCC_I2C1_CLKSOURCE)
  70. #endif /* RCC_CCIPR_I2C2SEL && RCC_CCIPR_I2C3SEL && RCC_CCIPR2_I2C4SEL */
  71. #define IS_LL_RCC_LPTIM_CLKSOURCE(__VALUE__) (((__VALUE__) == LL_RCC_LPTIM1_CLKSOURCE) \
  72. || ((__VALUE__) == LL_RCC_LPTIM2_CLKSOURCE))
  73. #if defined(RCC_CCIPR_SAI2SEL) || defined(RCC_CCIPR2_SAI2SEL)
  74. #define IS_LL_RCC_SAI_CLKSOURCE(__VALUE__) (((__VALUE__) == LL_RCC_SAI1_CLKSOURCE) \
  75. || ((__VALUE__) == LL_RCC_SAI2_CLKSOURCE))
  76. #elif defined(RCC_CCIPR_SAI1SEL) || defined(RCC_CCIPR2_SAI1SEL)
  77. #define IS_LL_RCC_SAI_CLKSOURCE(__VALUE__) ((__VALUE__) == LL_RCC_SAI1_CLKSOURCE)
  78. #endif /* RCC_CCIPR_SAI2SEL RCC_CCIPR2_SAI2SEL ||*/
  79. #if defined(SDMMC1)
  80. #if defined(RCC_CCIPR2_SDMMCSEL)
  81. #define IS_LL_RCC_SDMMC_KERNELCLKSOURCE(__VALUE__) (((__VALUE__) == LL_RCC_SDMMC1_KERNELCLKSOURCE))
  82. #endif /* RCC_CCIPR2_SDMMCSEL */
  83. #define IS_LL_RCC_SDMMC_CLKSOURCE(__VALUE__) (((__VALUE__) == LL_RCC_SDMMC1_CLKSOURCE))
  84. #endif /* SDMMC1 */
  85. #define IS_LL_RCC_RNG_CLKSOURCE(__VALUE__) (((__VALUE__) == LL_RCC_RNG_CLKSOURCE))
  86. #if defined(USB_OTG_FS) || defined(USB)
  87. #define IS_LL_RCC_USB_CLKSOURCE(__VALUE__) (((__VALUE__) == LL_RCC_USB_CLKSOURCE))
  88. #endif /* USB_OTG_FS || USB */
  89. #define IS_LL_RCC_ADC_CLKSOURCE(__VALUE__) (((__VALUE__) == LL_RCC_ADC_CLKSOURCE))
  90. #if defined(SWPMI1)
  91. #define IS_LL_RCC_SWPMI_CLKSOURCE(__VALUE__) (((__VALUE__) == LL_RCC_SWPMI1_CLKSOURCE))
  92. #endif /* SWPMI1 */
  93. #if defined(DFSDM1_Channel0)
  94. #define IS_LL_RCC_DFSDM_CLKSOURCE(__VALUE__) (((__VALUE__) == LL_RCC_DFSDM1_CLKSOURCE))
  95. #if defined(RCC_CCIPR2_DFSDM1SEL)
  96. #define IS_LL_RCC_DFSDM_AUDIO_CLKSOURCE(__VALUE__) (((__VALUE__) == LL_RCC_DFSDM1_AUDIO_CLKSOURCE))
  97. #endif /* RCC_CCIPR2_DFSDM1SEL */
  98. #endif /* DFSDM1_Channel0 */
  99. #if defined(DSI)
  100. #define IS_LL_RCC_DSI_CLKSOURCE(__VALUE__) (((__VALUE__) == LL_RCC_DSI_CLKSOURCE))
  101. #endif /* DSI */
  102. #if defined(LTDC)
  103. #define IS_LL_RCC_LTDC_CLKSOURCE(__VALUE__) (((__VALUE__) == LL_RCC_LTDC_CLKSOURCE))
  104. #endif /* LTDC */
  105. #if defined(OCTOSPI1)
  106. #define IS_LL_RCC_OCTOSPI_CLKSOURCE(__VALUE__) (((__VALUE__) == LL_RCC_OCTOSPI_CLKSOURCE))
  107. #endif /* OCTOSPI */
  108. /**
  109. * @}
  110. */
  111. /* Private function prototypes -----------------------------------------------*/
  112. /** @defgroup RCC_LL_Private_Functions RCC Private functions
  113. * @{
  114. */
  115. static uint32_t RCC_GetSystemClockFreq(void);
  116. static uint32_t RCC_GetHCLKClockFreq(uint32_t SYSCLK_Frequency);
  117. static uint32_t RCC_GetPCLK1ClockFreq(uint32_t HCLK_Frequency);
  118. static uint32_t RCC_GetPCLK2ClockFreq(uint32_t HCLK_Frequency);
  119. static uint32_t RCC_PLL_GetFreqDomain_SYS(void);
  120. #if defined(RCC_CCIPR_SAI1SEL) || defined(RCC_CCIPR_SAI2SEL) || defined(RCC_CCIPR2_SAI1SEL) || defined(RCC_CCIPR2_SAI2SEL)
  121. static uint32_t RCC_PLL_GetFreqDomain_SAI(void);
  122. #endif
  123. static uint32_t RCC_PLL_GetFreqDomain_48M(void);
  124. #if defined(RCC_PLLSAI1_SUPPORT)
  125. static uint32_t RCC_PLLSAI1_GetFreqDomain_SAI(void);
  126. static uint32_t RCC_PLLSAI1_GetFreqDomain_48M(void);
  127. static uint32_t RCC_PLLSAI1_GetFreqDomain_ADC(void);
  128. #endif /* RCC_PLLSAI1_SUPPORT */
  129. #if defined(RCC_PLLSAI2_SUPPORT)
  130. static uint32_t RCC_PLLSAI2_GetFreqDomain_SAI(void);
  131. #if defined(LTDC)
  132. static uint32_t RCC_PLLSAI2_GetFreqDomain_LTDC(void);
  133. #else
  134. static uint32_t RCC_PLLSAI2_GetFreqDomain_ADC(void);
  135. #endif /* LTDC */
  136. #if defined(DSI)
  137. static uint32_t RCC_PLLSAI2_GetFreqDomain_DSI(void);
  138. #endif /* DSI */
  139. #endif /*RCC_PLLSAI2_SUPPORT*/
  140. /**
  141. * @}
  142. */
  143. /* Exported functions --------------------------------------------------------*/
  144. /** @addtogroup RCC_LL_Exported_Functions
  145. * @{
  146. */
  147. /** @addtogroup RCC_LL_EF_Init
  148. * @{
  149. */
  150. /**
  151. * @brief Reset the RCC clock configuration to the default reset state.
  152. * @note The default reset state of the clock configuration is given below:
  153. * - MSI ON and used as system clock source
  154. * - HSE, HSI, PLL, PLLSAI1 and PLLSAI2 OFF
  155. * - AHB, APB1 and APB2 prescaler set to 1.
  156. * - CSS, MCO OFF
  157. * - All interrupts disabled
  158. * @note This function doesn't modify the configuration of the
  159. * - Peripheral clocks
  160. * - LSI, LSE and RTC clocks
  161. * @retval An ErrorStatus enumeration value:
  162. * - SUCCESS: RCC registers are de-initialized
  163. * - ERROR: not applicable
  164. */
  165. ErrorStatus LL_RCC_DeInit(void)
  166. {
  167. __IO uint32_t vl_mask;
  168. /* Set MSION bit */
  169. LL_RCC_MSI_Enable();
  170. /* Insure MSIRDY bit is set before writing default MSIRANGE value */
  171. while (LL_RCC_MSI_IsReady() == 0U)
  172. {
  173. }
  174. /* Set MSIRANGE default value */
  175. LL_RCC_MSI_SetRange(LL_RCC_MSIRANGE_6);
  176. /* Set MSITRIM bits to the reset value*/
  177. LL_RCC_MSI_SetCalibTrimming(0);
  178. /* Set HSITRIM bits to the reset value*/
  179. #if defined(RCC_ICSCR_HSITRIM_6)
  180. LL_RCC_HSI_SetCalibTrimming(0x40U);
  181. #else
  182. LL_RCC_HSI_SetCalibTrimming(0x10U);
  183. #endif /* RCC_ICSCR_HSITRIM_6 */
  184. /* Reset CFGR register */
  185. LL_RCC_WriteReg(CFGR, 0x00000000U);
  186. /* Read CR register */
  187. vl_mask = LL_RCC_ReadReg(CR);
  188. /* Reset HSION, HSIKERON, HSIASFS, HSEON, PLLON bits */
  189. CLEAR_BIT(vl_mask,
  190. (RCC_CR_HSION | RCC_CR_HSIASFS | RCC_CR_HSIKERON | RCC_CR_HSEON | RCC_CR_PLLON));
  191. #if defined(RCC_PLLSAI1_SUPPORT)
  192. /* Reset PLLSAI1ON bit */
  193. CLEAR_BIT(vl_mask, RCC_CR_PLLSAI1ON);
  194. #endif /*RCC_PLLSAI1_SUPPORT*/
  195. #if defined(RCC_PLLSAI2_SUPPORT)
  196. /* Reset PLLSAI2ON bit */
  197. CLEAR_BIT(vl_mask, RCC_CR_PLLSAI2ON);
  198. #endif /*RCC_PLLSAI2_SUPPORT*/
  199. /* Write new value in CR register */
  200. LL_RCC_WriteReg(CR, vl_mask);
  201. #if defined(RCC_PLLSAI2_SUPPORT)
  202. /* Wait for PLLRDY, PLLSAI1RDY and PLLSAI2RDY bits to be reset */
  203. while(READ_BIT(RCC->CR, RCC_CR_PLLRDY | RCC_CR_PLLSAI1RDY | RCC_CR_PLLSAI2RDY) != 0U)
  204. {
  205. }
  206. #elif defined(RCC_PLLSAI1_SUPPORT)
  207. /* Wait for PLLRDY and PLLSAI1RDY to be reset */
  208. while(READ_BIT(RCC->CR, RCC_CR_PLLRDY | RCC_CR_PLLSAI1RDY) != 0U)
  209. {
  210. }
  211. #else
  212. /* Wait for PLLRDY bit to be reset */
  213. while(READ_BIT(RCC->CR, RCC_CR_PLLRDY) != 0U)
  214. {
  215. }
  216. #endif
  217. /* Reset PLLCFGR register */
  218. LL_RCC_WriteReg(PLLCFGR, 16U << RCC_PLLCFGR_PLLN_Pos);
  219. #if defined(RCC_PLLSAI1_SUPPORT)
  220. /* Reset PLLSAI1CFGR register */
  221. LL_RCC_WriteReg(PLLSAI1CFGR, 16U << RCC_PLLSAI1CFGR_PLLSAI1N_Pos);
  222. #endif /*RCC_PLLSAI1_SUPPORT*/
  223. #if defined(RCC_PLLSAI2_SUPPORT)
  224. /* Reset PLLSAI2CFGR register */
  225. LL_RCC_WriteReg(PLLSAI2CFGR, 16U << RCC_PLLSAI2CFGR_PLLSAI2N_Pos);
  226. #endif /*RCC_PLLSAI2_SUPPORT*/
  227. /* Reset HSEBYP bit */
  228. LL_RCC_HSE_DisableBypass();
  229. /* Disable all interrupts */
  230. LL_RCC_WriteReg(CIER, 0x00000000U);
  231. /* Clear all interrupt flags */
  232. vl_mask = RCC_CICR_LSIRDYC | RCC_CICR_LSERDYC | RCC_CICR_MSIRDYC | RCC_CICR_HSIRDYC | RCC_CICR_HSERDYC | RCC_CICR_PLLRDYC | \
  233. RCC_CICR_CSSC | RCC_CICR_LSECSSC;
  234. #if defined(RCC_HSI48_SUPPORT)
  235. vl_mask |= RCC_CICR_HSI48RDYC;
  236. #endif
  237. #if defined(RCC_PLLSAI1_SUPPORT)
  238. vl_mask |= RCC_CICR_PLLSAI1RDYC;
  239. #endif
  240. #if defined(RCC_PLLSAI2_SUPPORT)
  241. vl_mask |= RCC_CICR_PLLSAI2RDYC;
  242. #endif
  243. LL_RCC_WriteReg(CICR, vl_mask);
  244. /* Clear reset flags */
  245. LL_RCC_ClearResetFlags();
  246. return SUCCESS;
  247. }
  248. /**
  249. * @}
  250. */
  251. /** @addtogroup RCC_LL_EF_Get_Freq
  252. * @brief Return the frequencies of different on chip clocks; System, AHB, APB1 and APB2 buses clocks
  253. * and different peripheral clocks available on the device.
  254. * @note If SYSCLK source is MSI, function returns values based on MSI_VALUE(*)
  255. * @note If SYSCLK source is HSI, function returns values based on HSI_VALUE(**)
  256. * @note If SYSCLK source is HSE, function returns values based on HSE_VALUE(***)
  257. * @note If SYSCLK source is PLL, function returns values based on HSE_VALUE(***)
  258. * or HSI_VALUE(**) or MSI_VALUE(*) multiplied/divided by the PLL factors.
  259. * @note (*) MSI_VALUE is a constant defined in this file (default value
  260. * 4 MHz) but the real value may vary depending on the variations
  261. * in voltage and temperature.
  262. * @note (**) HSI_VALUE is a constant defined in this file (default value
  263. * 16 MHz) but the real value may vary depending on the variations
  264. * in voltage and temperature.
  265. * @note (***) HSE_VALUE is a constant defined in this file (default value
  266. * 8 MHz), user has to ensure that HSE_VALUE is same as the real
  267. * frequency of the crystal used. Otherwise, this function may
  268. * have wrong result.
  269. * @note The result of this function could be incorrect when using fractional
  270. * value for HSE crystal.
  271. * @note This function can be used by the user application to compute the
  272. * baud-rate for the communication peripherals or configure other parameters.
  273. * @{
  274. */
  275. /**
  276. * @brief Return the frequencies of different on chip clocks; System, AHB, APB1 and APB2 buses clocks
  277. * @note Each time SYSCLK, HCLK, PCLK1 and/or PCLK2 clock changes, this function
  278. * must be called to update structure fields. Otherwise, any
  279. * configuration based on this function will be incorrect.
  280. * @param RCC_Clocks pointer to a @ref LL_RCC_ClocksTypeDef structure which will hold the clocks frequencies
  281. * @retval None
  282. */
  283. void LL_RCC_GetSystemClocksFreq(LL_RCC_ClocksTypeDef *RCC_Clocks)
  284. {
  285. /* Get SYSCLK frequency */
  286. RCC_Clocks->SYSCLK_Frequency = RCC_GetSystemClockFreq();
  287. /* HCLK clock frequency */
  288. RCC_Clocks->HCLK_Frequency = RCC_GetHCLKClockFreq(RCC_Clocks->SYSCLK_Frequency);
  289. /* PCLK1 clock frequency */
  290. RCC_Clocks->PCLK1_Frequency = RCC_GetPCLK1ClockFreq(RCC_Clocks->HCLK_Frequency);
  291. /* PCLK2 clock frequency */
  292. RCC_Clocks->PCLK2_Frequency = RCC_GetPCLK2ClockFreq(RCC_Clocks->HCLK_Frequency);
  293. }
  294. /**
  295. * @brief Return USARTx clock frequency
  296. * @param USARTxSource This parameter can be one of the following values:
  297. * @arg @ref LL_RCC_USART1_CLKSOURCE
  298. * @arg @ref LL_RCC_USART2_CLKSOURCE
  299. * @arg @ref LL_RCC_USART3_CLKSOURCE (*)
  300. *
  301. * (*) value not defined in all devices.
  302. * @retval USART clock frequency (in Hz)
  303. * - @ref LL_RCC_PERIPH_FREQUENCY_NO indicates that oscillator (HSI or LSE) is not ready
  304. */
  305. uint32_t LL_RCC_GetUSARTClockFreq(uint32_t USARTxSource)
  306. {
  307. uint32_t usart_frequency = LL_RCC_PERIPH_FREQUENCY_NO;
  308. /* Check parameter */
  309. assert_param(IS_LL_RCC_USART_CLKSOURCE(USARTxSource));
  310. if (USARTxSource == LL_RCC_USART1_CLKSOURCE)
  311. {
  312. /* USART1CLK clock frequency */
  313. switch (LL_RCC_GetUSARTClockSource(USARTxSource))
  314. {
  315. case LL_RCC_USART1_CLKSOURCE_SYSCLK: /* USART1 Clock is System Clock */
  316. usart_frequency = RCC_GetSystemClockFreq();
  317. break;
  318. case LL_RCC_USART1_CLKSOURCE_HSI: /* USART1 Clock is HSI Osc. */
  319. if (LL_RCC_HSI_IsReady() != 0U)
  320. {
  321. usart_frequency = HSI_VALUE;
  322. }
  323. break;
  324. case LL_RCC_USART1_CLKSOURCE_LSE: /* USART1 Clock is LSE Osc. */
  325. if (LL_RCC_LSE_IsReady() != 0U)
  326. {
  327. usart_frequency = LSE_VALUE;
  328. }
  329. break;
  330. case LL_RCC_USART1_CLKSOURCE_PCLK2: /* USART1 Clock is PCLK2 */
  331. usart_frequency = RCC_GetPCLK2ClockFreq(RCC_GetHCLKClockFreq(RCC_GetSystemClockFreq()));
  332. break;
  333. default:
  334. break;
  335. }
  336. }
  337. else if (USARTxSource == LL_RCC_USART2_CLKSOURCE)
  338. {
  339. /* USART2CLK clock frequency */
  340. switch (LL_RCC_GetUSARTClockSource(USARTxSource))
  341. {
  342. case LL_RCC_USART2_CLKSOURCE_SYSCLK: /* USART2 Clock is System Clock */
  343. usart_frequency = RCC_GetSystemClockFreq();
  344. break;
  345. case LL_RCC_USART2_CLKSOURCE_HSI: /* USART2 Clock is HSI Osc. */
  346. if (LL_RCC_HSI_IsReady() != 0U)
  347. {
  348. usart_frequency = HSI_VALUE;
  349. }
  350. break;
  351. case LL_RCC_USART2_CLKSOURCE_LSE: /* USART2 Clock is LSE Osc. */
  352. if (LL_RCC_LSE_IsReady() != 0U)
  353. {
  354. usart_frequency = LSE_VALUE;
  355. }
  356. break;
  357. case LL_RCC_USART2_CLKSOURCE_PCLK1: /* USART2 Clock is PCLK1 */
  358. usart_frequency = RCC_GetPCLK1ClockFreq(RCC_GetHCLKClockFreq(RCC_GetSystemClockFreq()));
  359. break;
  360. default:
  361. break;
  362. }
  363. }
  364. else
  365. {
  366. #if defined(RCC_CCIPR_USART3SEL)
  367. if (USARTxSource == LL_RCC_USART3_CLKSOURCE)
  368. {
  369. /* USART3CLK clock frequency */
  370. switch (LL_RCC_GetUSARTClockSource(USARTxSource))
  371. {
  372. case LL_RCC_USART3_CLKSOURCE_SYSCLK: /* USART3 Clock is System Clock */
  373. usart_frequency = RCC_GetSystemClockFreq();
  374. break;
  375. case LL_RCC_USART3_CLKSOURCE_HSI: /* USART3 Clock is HSI Osc. */
  376. if (LL_RCC_HSI_IsReady() != 0U)
  377. {
  378. usart_frequency = HSI_VALUE;
  379. }
  380. break;
  381. case LL_RCC_USART3_CLKSOURCE_LSE: /* USART3 Clock is LSE Osc. */
  382. if (LL_RCC_LSE_IsReady() != 0U)
  383. {
  384. usart_frequency = LSE_VALUE;
  385. }
  386. break;
  387. case LL_RCC_USART3_CLKSOURCE_PCLK1: /* USART3 Clock is PCLK1 */
  388. usart_frequency = RCC_GetPCLK1ClockFreq(RCC_GetHCLKClockFreq(RCC_GetSystemClockFreq()));
  389. break;
  390. default:
  391. break;
  392. }
  393. }
  394. #endif /* RCC_CCIPR_USART3SEL */
  395. }
  396. return usart_frequency;
  397. }
  398. #if defined(RCC_CCIPR_UART4SEL) || defined(RCC_CCIPR_UART5SEL)
  399. /**
  400. * @brief Return UARTx clock frequency
  401. * @param UARTxSource This parameter can be one of the following values:
  402. * @arg @ref LL_RCC_UART4_CLKSOURCE
  403. * @arg @ref LL_RCC_UART5_CLKSOURCE
  404. * @retval UART clock frequency (in Hz)
  405. * - @ref LL_RCC_PERIPH_FREQUENCY_NO indicates that oscillator (HSI or LSE) is not ready
  406. */
  407. uint32_t LL_RCC_GetUARTClockFreq(uint32_t UARTxSource)
  408. {
  409. uint32_t uart_frequency = LL_RCC_PERIPH_FREQUENCY_NO;
  410. /* Check parameter */
  411. assert_param(IS_LL_RCC_UART_CLKSOURCE(UARTxSource));
  412. #if defined(RCC_CCIPR_UART4SEL)
  413. if (UARTxSource == LL_RCC_UART4_CLKSOURCE)
  414. {
  415. /* UART4CLK clock frequency */
  416. switch (LL_RCC_GetUARTClockSource(UARTxSource))
  417. {
  418. case LL_RCC_UART4_CLKSOURCE_SYSCLK: /* UART4 Clock is System Clock */
  419. uart_frequency = RCC_GetSystemClockFreq();
  420. break;
  421. case LL_RCC_UART4_CLKSOURCE_HSI: /* UART4 Clock is HSI Osc. */
  422. if (LL_RCC_HSI_IsReady() != 0U)
  423. {
  424. uart_frequency = HSI_VALUE;
  425. }
  426. break;
  427. case LL_RCC_UART4_CLKSOURCE_LSE: /* UART4 Clock is LSE Osc. */
  428. if (LL_RCC_LSE_IsReady() != 0U)
  429. {
  430. uart_frequency = LSE_VALUE;
  431. }
  432. break;
  433. case LL_RCC_UART4_CLKSOURCE_PCLK1: /* UART4 Clock is PCLK1 */
  434. uart_frequency = RCC_GetPCLK1ClockFreq(RCC_GetHCLKClockFreq(RCC_GetSystemClockFreq()));
  435. break;
  436. default:
  437. break;
  438. }
  439. }
  440. #endif /* RCC_CCIPR_UART4SEL */
  441. #if defined(RCC_CCIPR_UART5SEL)
  442. if (UARTxSource == LL_RCC_UART5_CLKSOURCE)
  443. {
  444. /* UART5CLK clock frequency */
  445. switch (LL_RCC_GetUARTClockSource(UARTxSource))
  446. {
  447. case LL_RCC_UART5_CLKSOURCE_SYSCLK: /* UART5 Clock is System Clock */
  448. uart_frequency = RCC_GetSystemClockFreq();
  449. break;
  450. case LL_RCC_UART5_CLKSOURCE_HSI: /* UART5 Clock is HSI Osc. */
  451. if (LL_RCC_HSI_IsReady() != 0U)
  452. {
  453. uart_frequency = HSI_VALUE;
  454. }
  455. break;
  456. case LL_RCC_UART5_CLKSOURCE_LSE: /* UART5 Clock is LSE Osc. */
  457. if (LL_RCC_LSE_IsReady() != 0U)
  458. {
  459. uart_frequency = LSE_VALUE;
  460. }
  461. break;
  462. case LL_RCC_UART5_CLKSOURCE_PCLK1: /* UART5 Clock is PCLK1 */
  463. uart_frequency = RCC_GetPCLK1ClockFreq(RCC_GetHCLKClockFreq(RCC_GetSystemClockFreq()));
  464. break;
  465. default:
  466. break;
  467. }
  468. }
  469. #endif /* RCC_CCIPR_UART5SEL */
  470. return uart_frequency;
  471. }
  472. #endif /* RCC_CCIPR_UART4SEL || RCC_CCIPR_UART5SEL */
  473. /**
  474. * @brief Return I2Cx clock frequency
  475. * @param I2CxSource This parameter can be one of the following values:
  476. * @arg @ref LL_RCC_I2C1_CLKSOURCE
  477. * @arg @ref LL_RCC_I2C2_CLKSOURCE (*)
  478. * @arg @ref LL_RCC_I2C3_CLKSOURCE
  479. * @arg @ref LL_RCC_I2C4_CLKSOURCE (*)
  480. *
  481. * (*) value not defined in all devices.
  482. * @retval I2C clock frequency (in Hz)
  483. * - @ref LL_RCC_PERIPH_FREQUENCY_NO indicates that HSI oscillator is not ready
  484. */
  485. uint32_t LL_RCC_GetI2CClockFreq(uint32_t I2CxSource)
  486. {
  487. uint32_t i2c_frequency = LL_RCC_PERIPH_FREQUENCY_NO;
  488. /* Check parameter */
  489. assert_param(IS_LL_RCC_I2C_CLKSOURCE(I2CxSource));
  490. if (I2CxSource == LL_RCC_I2C1_CLKSOURCE)
  491. {
  492. /* I2C1 CLK clock frequency */
  493. switch (LL_RCC_GetI2CClockSource(I2CxSource))
  494. {
  495. case LL_RCC_I2C1_CLKSOURCE_SYSCLK: /* I2C1 Clock is System Clock */
  496. i2c_frequency = RCC_GetSystemClockFreq();
  497. break;
  498. case LL_RCC_I2C1_CLKSOURCE_HSI: /* I2C1 Clock is HSI Osc. */
  499. if (LL_RCC_HSI_IsReady() != 0U)
  500. {
  501. i2c_frequency = HSI_VALUE;
  502. }
  503. break;
  504. case LL_RCC_I2C1_CLKSOURCE_PCLK1: /* I2C1 Clock is PCLK1 */
  505. i2c_frequency = RCC_GetPCLK1ClockFreq(RCC_GetHCLKClockFreq(RCC_GetSystemClockFreq()));
  506. break;
  507. default:
  508. break;
  509. }
  510. }
  511. #if defined(RCC_CCIPR_I2C2SEL)
  512. else if (I2CxSource == LL_RCC_I2C2_CLKSOURCE)
  513. {
  514. /* I2C2 CLK clock frequency */
  515. switch (LL_RCC_GetI2CClockSource(I2CxSource))
  516. {
  517. case LL_RCC_I2C2_CLKSOURCE_SYSCLK: /* I2C2 Clock is System Clock */
  518. i2c_frequency = RCC_GetSystemClockFreq();
  519. break;
  520. case LL_RCC_I2C2_CLKSOURCE_HSI: /* I2C2 Clock is HSI Osc. */
  521. if (LL_RCC_HSI_IsReady() != 0U)
  522. {
  523. i2c_frequency = HSI_VALUE;
  524. }
  525. break;
  526. case LL_RCC_I2C2_CLKSOURCE_PCLK1: /* I2C2 Clock is PCLK1 */
  527. i2c_frequency = RCC_GetPCLK1ClockFreq(RCC_GetHCLKClockFreq(RCC_GetSystemClockFreq()));
  528. break;
  529. default:
  530. break;
  531. }
  532. }
  533. #endif /*RCC_CCIPR_I2C2SEL*/
  534. else
  535. {
  536. if (I2CxSource == LL_RCC_I2C3_CLKSOURCE)
  537. {
  538. /* I2C3 CLK clock frequency */
  539. switch (LL_RCC_GetI2CClockSource(I2CxSource))
  540. {
  541. case LL_RCC_I2C3_CLKSOURCE_SYSCLK: /* I2C3 Clock is System Clock */
  542. i2c_frequency = RCC_GetSystemClockFreq();
  543. break;
  544. case LL_RCC_I2C3_CLKSOURCE_HSI: /* I2C3 Clock is HSI Osc. */
  545. if (LL_RCC_HSI_IsReady() != 0U)
  546. {
  547. i2c_frequency = HSI_VALUE;
  548. }
  549. break;
  550. case LL_RCC_I2C3_CLKSOURCE_PCLK1: /* I2C3 Clock is PCLK1 */
  551. i2c_frequency = RCC_GetPCLK1ClockFreq(RCC_GetHCLKClockFreq(RCC_GetSystemClockFreq()));
  552. break;
  553. default:
  554. break;
  555. }
  556. }
  557. #if defined(RCC_CCIPR2_I2C4SEL)
  558. else
  559. {
  560. if (I2CxSource == LL_RCC_I2C4_CLKSOURCE)
  561. {
  562. /* I2C4 CLK clock frequency */
  563. switch (LL_RCC_GetI2CClockSource(I2CxSource))
  564. {
  565. case LL_RCC_I2C4_CLKSOURCE_SYSCLK: /* I2C4 Clock is System Clock */
  566. i2c_frequency = RCC_GetSystemClockFreq();
  567. break;
  568. case LL_RCC_I2C4_CLKSOURCE_HSI: /* I2C4 Clock is HSI Osc. */
  569. if (LL_RCC_HSI_IsReady() != 0U)
  570. {
  571. i2c_frequency = HSI_VALUE;
  572. }
  573. break;
  574. case LL_RCC_I2C4_CLKSOURCE_PCLK1: /* I2C4 Clock is PCLK1 */
  575. i2c_frequency = RCC_GetPCLK1ClockFreq(RCC_GetHCLKClockFreq(RCC_GetSystemClockFreq()));
  576. break;
  577. default:
  578. break;
  579. }
  580. }
  581. }
  582. #endif /*RCC_CCIPR2_I2C4SEL*/
  583. }
  584. return i2c_frequency;
  585. }
  586. /**
  587. * @brief Return LPUARTx clock frequency
  588. * @param LPUARTxSource This parameter can be one of the following values:
  589. * @arg @ref LL_RCC_LPUART1_CLKSOURCE
  590. * @retval LPUART clock frequency (in Hz)
  591. * - @ref LL_RCC_PERIPH_FREQUENCY_NO indicates that oscillator (HSI or LSE) is not ready
  592. */
  593. uint32_t LL_RCC_GetLPUARTClockFreq(uint32_t LPUARTxSource)
  594. {
  595. uint32_t lpuart_frequency = LL_RCC_PERIPH_FREQUENCY_NO;
  596. /* Check parameter */
  597. assert_param(IS_LL_RCC_LPUART_CLKSOURCE(LPUARTxSource));
  598. /* LPUART1CLK clock frequency */
  599. switch (LL_RCC_GetLPUARTClockSource(LPUARTxSource))
  600. {
  601. case LL_RCC_LPUART1_CLKSOURCE_SYSCLK: /* LPUART1 Clock is System Clock */
  602. lpuart_frequency = RCC_GetSystemClockFreq();
  603. break;
  604. case LL_RCC_LPUART1_CLKSOURCE_HSI: /* LPUART1 Clock is HSI Osc. */
  605. if (LL_RCC_HSI_IsReady() != 0U)
  606. {
  607. lpuart_frequency = HSI_VALUE;
  608. }
  609. break;
  610. case LL_RCC_LPUART1_CLKSOURCE_LSE: /* LPUART1 Clock is LSE Osc. */
  611. if (LL_RCC_LSE_IsReady() != 0U)
  612. {
  613. lpuart_frequency = LSE_VALUE;
  614. }
  615. break;
  616. case LL_RCC_LPUART1_CLKSOURCE_PCLK1: /* LPUART1 Clock is PCLK1 */
  617. lpuart_frequency = RCC_GetPCLK1ClockFreq(RCC_GetHCLKClockFreq(RCC_GetSystemClockFreq()));
  618. break;
  619. default:
  620. break;
  621. }
  622. return lpuart_frequency;
  623. }
  624. /**
  625. * @brief Return LPTIMx clock frequency
  626. * @param LPTIMxSource This parameter can be one of the following values:
  627. * @arg @ref LL_RCC_LPTIM1_CLKSOURCE
  628. * @arg @ref LL_RCC_LPTIM2_CLKSOURCE
  629. * @retval LPTIM clock frequency (in Hz)
  630. * - @ref LL_RCC_PERIPH_FREQUENCY_NO indicates that oscillator (HSI, LSI or LSE) is not ready
  631. */
  632. uint32_t LL_RCC_GetLPTIMClockFreq(uint32_t LPTIMxSource)
  633. {
  634. uint32_t lptim_frequency = LL_RCC_PERIPH_FREQUENCY_NO;
  635. /* Check parameter */
  636. assert_param(IS_LL_RCC_LPTIM_CLKSOURCE(LPTIMxSource));
  637. if (LPTIMxSource == LL_RCC_LPTIM1_CLKSOURCE)
  638. {
  639. /* LPTIM1CLK clock frequency */
  640. switch (LL_RCC_GetLPTIMClockSource(LPTIMxSource))
  641. {
  642. case LL_RCC_LPTIM1_CLKSOURCE_LSI: /* LPTIM1 Clock is LSI Osc. */
  643. if (LL_RCC_LSI_IsReady() != 0U)
  644. {
  645. #if defined(RCC_CSR_LSIPREDIV)
  646. if (LL_RCC_LSI_GetPrediv() == LL_RCC_LSI_PREDIV_128)
  647. {
  648. lptim_frequency = LSI_VALUE / 128U;
  649. }
  650. else
  651. #endif /* RCC_CSR_LSIPREDIV */
  652. {
  653. lptim_frequency = LSI_VALUE;
  654. }
  655. }
  656. break;
  657. case LL_RCC_LPTIM1_CLKSOURCE_HSI: /* LPTIM1 Clock is HSI Osc. */
  658. if (LL_RCC_HSI_IsReady() != 0U)
  659. {
  660. lptim_frequency = HSI_VALUE;
  661. }
  662. break;
  663. case LL_RCC_LPTIM1_CLKSOURCE_LSE: /* LPTIM1 Clock is LSE Osc. */
  664. if (LL_RCC_LSE_IsReady() != 0U)
  665. {
  666. lptim_frequency = LSE_VALUE;
  667. }
  668. break;
  669. case LL_RCC_LPTIM1_CLKSOURCE_PCLK1: /* LPTIM1 Clock is PCLK1 */
  670. lptim_frequency = RCC_GetPCLK1ClockFreq(RCC_GetHCLKClockFreq(RCC_GetSystemClockFreq()));
  671. break;
  672. default:
  673. break;
  674. }
  675. }
  676. else
  677. {
  678. if (LPTIMxSource == LL_RCC_LPTIM2_CLKSOURCE)
  679. {
  680. /* LPTIM2CLK clock frequency */
  681. switch (LL_RCC_GetLPTIMClockSource(LPTIMxSource))
  682. {
  683. case LL_RCC_LPTIM2_CLKSOURCE_LSI: /* LPTIM2 Clock is LSI Osc. */
  684. if (LL_RCC_LSI_IsReady() != 0U)
  685. {
  686. #if defined(RCC_CSR_LSIPREDIV)
  687. if (LL_RCC_LSI_GetPrediv() == LL_RCC_LSI_PREDIV_128)
  688. {
  689. lptim_frequency = LSI_VALUE / 128U;
  690. }
  691. else
  692. #endif /* RCC_CSR_LSIPREDIV */
  693. {
  694. lptim_frequency = LSI_VALUE;
  695. }
  696. }
  697. break;
  698. case LL_RCC_LPTIM2_CLKSOURCE_HSI: /* LPTIM2 Clock is HSI Osc. */
  699. if (LL_RCC_HSI_IsReady() != 0U)
  700. {
  701. lptim_frequency = HSI_VALUE;
  702. }
  703. break;
  704. case LL_RCC_LPTIM2_CLKSOURCE_LSE: /* LPTIM2 Clock is LSE Osc. */
  705. if (LL_RCC_LSE_IsReady() != 0U)
  706. {
  707. lptim_frequency = LSE_VALUE;
  708. }
  709. break;
  710. case LL_RCC_LPTIM2_CLKSOURCE_PCLK1: /* LPTIM2 Clock is PCLK1 */
  711. lptim_frequency = RCC_GetPCLK1ClockFreq(RCC_GetHCLKClockFreq(RCC_GetSystemClockFreq()));
  712. break;
  713. default:
  714. break;
  715. }
  716. }
  717. }
  718. return lptim_frequency;
  719. }
  720. #if defined(RCC_CCIPR_SAI1SEL) || defined(RCC_CCIPR_SAI2SEL) || defined(RCC_CCIPR2_SAI1SEL) || defined(RCC_CCIPR2_SAI2SEL)
  721. /**
  722. * @brief Return SAIx clock frequency
  723. * @param SAIxSource This parameter can be one of the following values:
  724. * @arg @ref LL_RCC_SAI1_CLKSOURCE
  725. * @arg @ref LL_RCC_SAI2_CLKSOURCE (*)
  726. *
  727. * (*) value not defined in all devices.
  728. * @retval SAI clock frequency (in Hz)
  729. * - @ref LL_RCC_PERIPH_FREQUENCY_NO indicates that PLL is not ready
  730. */
  731. uint32_t LL_RCC_GetSAIClockFreq(uint32_t SAIxSource)
  732. {
  733. uint32_t sai_frequency = LL_RCC_PERIPH_FREQUENCY_NO;
  734. /* Check parameter */
  735. assert_param(IS_LL_RCC_SAI_CLKSOURCE(SAIxSource));
  736. if (SAIxSource == LL_RCC_SAI1_CLKSOURCE)
  737. {
  738. /* SAI1CLK clock frequency */
  739. switch (LL_RCC_GetSAIClockSource(SAIxSource))
  740. {
  741. case LL_RCC_SAI1_CLKSOURCE_PLLSAI1: /* PLLSAI1 clock used as SAI1 clock source */
  742. if (LL_RCC_PLLSAI1_IsReady() != 0U)
  743. {
  744. if (LL_RCC_PLLSAI1_IsEnabledDomain_SAI() != 0U)
  745. {
  746. sai_frequency = RCC_PLLSAI1_GetFreqDomain_SAI();
  747. }
  748. }
  749. break;
  750. #if defined(RCC_PLLSAI2_SUPPORT)
  751. case LL_RCC_SAI1_CLKSOURCE_PLLSAI2: /* PLLSAI2 clock used as SAI1 clock source */
  752. if (LL_RCC_PLLSAI2_IsReady() != 0U)
  753. {
  754. if (LL_RCC_PLLSAI2_IsEnabledDomain_SAI() != 0U)
  755. {
  756. sai_frequency = RCC_PLLSAI2_GetFreqDomain_SAI();
  757. }
  758. }
  759. break;
  760. #endif /* RCC_PLLSAI2_SUPPORT */
  761. case LL_RCC_SAI1_CLKSOURCE_PLL: /* PLL clock used as SAI1 clock source */
  762. if (LL_RCC_PLL_IsReady() != 0U)
  763. {
  764. if (LL_RCC_PLL_IsEnabledDomain_SAI() != 0U)
  765. {
  766. sai_frequency = RCC_PLL_GetFreqDomain_SAI();
  767. }
  768. }
  769. break;
  770. case LL_RCC_SAI1_CLKSOURCE_PIN: /* External input clock used as SAI1 clock source */
  771. sai_frequency = EXTERNAL_SAI1_CLOCK_VALUE;
  772. break;
  773. default:
  774. break;
  775. }
  776. }
  777. else
  778. {
  779. #if defined(RCC_CCIPR_SAI2SEL) || defined(RCC_CCIPR2_SAI2SEL)
  780. if (SAIxSource == LL_RCC_SAI2_CLKSOURCE)
  781. {
  782. /* SAI2CLK clock frequency */
  783. switch (LL_RCC_GetSAIClockSource(SAIxSource))
  784. {
  785. case LL_RCC_SAI2_CLKSOURCE_PLLSAI1: /* PLLSAI1 clock used as SAI2 clock source */
  786. if (LL_RCC_PLLSAI1_IsReady() != 0U)
  787. {
  788. if (LL_RCC_PLLSAI1_IsEnabledDomain_SAI() != 0U)
  789. {
  790. sai_frequency = RCC_PLLSAI1_GetFreqDomain_SAI();
  791. }
  792. }
  793. break;
  794. #if defined(RCC_PLLSAI2_SUPPORT)
  795. case LL_RCC_SAI2_CLKSOURCE_PLLSAI2: /* PLLSAI2 clock used as SAI2 clock source */
  796. if (LL_RCC_PLLSAI2_IsReady() != 0U)
  797. {
  798. if (LL_RCC_PLLSAI2_IsEnabledDomain_SAI() != 0U)
  799. {
  800. sai_frequency = RCC_PLLSAI2_GetFreqDomain_SAI();
  801. }
  802. }
  803. break;
  804. #endif /* RCC_PLLSAI2_SUPPORT */
  805. case LL_RCC_SAI2_CLKSOURCE_PLL: /* PLL clock used as SAI2 clock source */
  806. if (LL_RCC_PLL_IsReady() != 0U)
  807. {
  808. if (LL_RCC_PLL_IsEnabledDomain_SAI() != 0U)
  809. {
  810. sai_frequency = RCC_PLL_GetFreqDomain_SAI();
  811. }
  812. }
  813. break;
  814. case LL_RCC_SAI2_CLKSOURCE_PIN: /* External input clock used as SAI2 clock source */
  815. sai_frequency = EXTERNAL_SAI2_CLOCK_VALUE;
  816. break;
  817. default:
  818. break;
  819. }
  820. }
  821. #endif /* RCC_CCIPR_SAI2SEL || RCC_CCIPR2_SAI2SEL */
  822. }
  823. return sai_frequency;
  824. }
  825. #endif /* RCC_CCIPR_SAI1SEL || RCC_CCIPR_SAI2SEL || RCC_CCIPR2_SAI1SEL || RCC_CCIPR2_SAI2SEL*/
  826. #if defined(SDMMC1)
  827. #if defined(RCC_CCIPR2_SDMMCSEL)
  828. /**
  829. * @brief Return SDMMCx kernel clock frequency
  830. * @param SDMMCxSource This parameter can be one of the following values:
  831. * @arg @ref LL_RCC_SDMMC1_KERNELCLKSOURCE
  832. * @retval SDMMC clock frequency (in Hz)
  833. * - @ref LL_RCC_PERIPH_FREQUENCY_NO indicates that oscillator (MSI) or PLL is not ready
  834. * - @ref LL_RCC_PERIPH_FREQUENCY_NA indicates that no clock source selected
  835. */
  836. uint32_t LL_RCC_GetSDMMCKernelClockFreq(uint32_t SDMMCxSource)
  837. {
  838. uint32_t sdmmc_frequency = LL_RCC_PERIPH_FREQUENCY_NO;
  839. /* Check parameter */
  840. assert_param(IS_LL_RCC_SDMMC_KERNELCLKSOURCE(SDMMCxSource));
  841. /* SDMMC1CLK kernel clock frequency */
  842. switch (LL_RCC_GetSDMMCKernelClockSource(SDMMCxSource))
  843. {
  844. case LL_RCC_SDMMC1_KERNELCLKSOURCE_48CLK: /* 48MHz clock from internal multiplexor used as SDMMC1 clock source */
  845. sdmmc_frequency = LL_RCC_GetSDMMCClockFreq(LL_RCC_SDMMC1_CLKSOURCE);
  846. break;
  847. case LL_RCC_SDMMC1_KERNELCLKSOURCE_PLLP: /* PLL "P" output (PLLSAI3CLK) clock used as SDMMC1 clock source */
  848. if (LL_RCC_PLL_IsReady() != 0U)
  849. {
  850. if (LL_RCC_PLL_IsEnabledDomain_SAI() != 0U)
  851. {
  852. sdmmc_frequency = RCC_PLL_GetFreqDomain_SAI();
  853. }
  854. }
  855. break;
  856. default:
  857. sdmmc_frequency = LL_RCC_PERIPH_FREQUENCY_NA;
  858. break;
  859. }
  860. return sdmmc_frequency;
  861. }
  862. #endif
  863. /**
  864. * @brief Return SDMMCx clock frequency
  865. * @param SDMMCxSource This parameter can be one of the following values:
  866. * @arg @ref LL_RCC_SDMMC1_CLKSOURCE
  867. * @retval SDMMC clock frequency (in Hz)
  868. * - @ref LL_RCC_PERIPH_FREQUENCY_NO indicates that oscillator (MSI) or PLL is not ready
  869. * - @ref LL_RCC_PERIPH_FREQUENCY_NA indicates that no clock source selected
  870. */
  871. uint32_t LL_RCC_GetSDMMCClockFreq(uint32_t SDMMCxSource)
  872. {
  873. uint32_t sdmmc_frequency = LL_RCC_PERIPH_FREQUENCY_NO;
  874. /* Check parameter */
  875. assert_param(IS_LL_RCC_SDMMC_CLKSOURCE(SDMMCxSource));
  876. /* SDMMC1CLK clock frequency */
  877. switch (LL_RCC_GetSDMMCClockSource(SDMMCxSource))
  878. {
  879. #if defined(LL_RCC_SDMMC1_CLKSOURCE_PLLSAI1)
  880. case LL_RCC_SDMMC1_CLKSOURCE_PLLSAI1: /* PLLSAI1 clock used as SDMMC1 clock source */
  881. if (LL_RCC_PLLSAI1_IsReady() != 0U)
  882. {
  883. if (LL_RCC_PLLSAI1_IsEnabledDomain_48M() != 0U)
  884. {
  885. sdmmc_frequency = RCC_PLLSAI1_GetFreqDomain_48M();
  886. }
  887. }
  888. break;
  889. #endif
  890. case LL_RCC_SDMMC1_CLKSOURCE_PLL: /* PLL clock used as SDMMC1 clock source */
  891. if (LL_RCC_PLL_IsReady() != 0U)
  892. {
  893. if (LL_RCC_PLL_IsEnabledDomain_48M() != 0U)
  894. {
  895. sdmmc_frequency = RCC_PLL_GetFreqDomain_48M();
  896. }
  897. }
  898. break;
  899. #if defined(LL_RCC_SDMMC1_CLKSOURCE_MSI)
  900. case LL_RCC_SDMMC1_CLKSOURCE_MSI: /* MSI clock used as SDMMC1 clock source */
  901. if (LL_RCC_MSI_IsReady() != 0U)
  902. {
  903. sdmmc_frequency = __LL_RCC_CALC_MSI_FREQ(LL_RCC_MSI_IsEnabledRangeSelect(),
  904. ((LL_RCC_MSI_IsEnabledRangeSelect() != 0U) ?
  905. LL_RCC_MSI_GetRange() :
  906. LL_RCC_MSI_GetRangeAfterStandby()));
  907. }
  908. break;
  909. #endif
  910. #if defined(RCC_HSI48_SUPPORT)
  911. case LL_RCC_SDMMC1_CLKSOURCE_HSI48: /* HSI48 used as SDMMC1 clock source */
  912. if (LL_RCC_HSI48_IsReady() != 0U)
  913. {
  914. sdmmc_frequency = HSI48_VALUE;
  915. }
  916. break;
  917. #else
  918. case LL_RCC_SDMMC1_CLKSOURCE_NONE: /* No clock used as SDMMC1 clock source */
  919. #endif
  920. default:
  921. sdmmc_frequency = LL_RCC_PERIPH_FREQUENCY_NA;
  922. break;
  923. }
  924. return sdmmc_frequency;
  925. }
  926. #endif /* SDMMC1 */
  927. /**
  928. * @brief Return RNGx clock frequency
  929. * @param RNGxSource This parameter can be one of the following values:
  930. * @arg @ref LL_RCC_RNG_CLKSOURCE
  931. * @retval RNG clock frequency (in Hz)
  932. * - @ref LL_RCC_PERIPH_FREQUENCY_NO indicates that oscillator (MSI) or PLL is not ready
  933. * - @ref LL_RCC_PERIPH_FREQUENCY_NA indicates that no clock source selected
  934. */
  935. uint32_t LL_RCC_GetRNGClockFreq(uint32_t RNGxSource)
  936. {
  937. uint32_t rng_frequency = LL_RCC_PERIPH_FREQUENCY_NO;
  938. /* Check parameter */
  939. assert_param(IS_LL_RCC_RNG_CLKSOURCE(RNGxSource));
  940. /* RNGCLK clock frequency */
  941. switch (LL_RCC_GetRNGClockSource(RNGxSource))
  942. {
  943. #if defined(RCC_PLLSAI1_SUPPORT)
  944. case LL_RCC_RNG_CLKSOURCE_PLLSAI1: /* PLLSAI1 clock used as RNG clock source */
  945. if (LL_RCC_PLLSAI1_IsReady() != 0U)
  946. {
  947. if (LL_RCC_PLLSAI1_IsEnabledDomain_48M() !=0U)
  948. {
  949. rng_frequency = RCC_PLLSAI1_GetFreqDomain_48M();
  950. }
  951. }
  952. break;
  953. #endif /* RCC_PLLSAI1_SUPPORT */
  954. case LL_RCC_RNG_CLKSOURCE_PLL: /* PLL clock used as RNG clock source */
  955. if (LL_RCC_PLL_IsReady() != 0U)
  956. {
  957. if (LL_RCC_PLL_IsEnabledDomain_48M() != 0U)
  958. {
  959. rng_frequency = RCC_PLL_GetFreqDomain_48M();
  960. }
  961. }
  962. break;
  963. case LL_RCC_RNG_CLKSOURCE_MSI: /* MSI clock used as RNG clock source */
  964. if (LL_RCC_MSI_IsReady() != 0U)
  965. {
  966. rng_frequency = __LL_RCC_CALC_MSI_FREQ(LL_RCC_MSI_IsEnabledRangeSelect(),
  967. ((LL_RCC_MSI_IsEnabledRangeSelect() != 0U) ?
  968. LL_RCC_MSI_GetRange() :
  969. LL_RCC_MSI_GetRangeAfterStandby()));
  970. }
  971. break;
  972. #if defined(RCC_HSI48_SUPPORT)
  973. case LL_RCC_RNG_CLKSOURCE_HSI48: /* HSI48 used as RNG clock source */
  974. if (LL_RCC_HSI48_IsReady() != 0U)
  975. {
  976. rng_frequency = HSI48_VALUE;
  977. }
  978. break;
  979. #else
  980. case LL_RCC_RNG_CLKSOURCE_NONE: /* No clock used as RNG clock source */
  981. #endif
  982. default:
  983. rng_frequency = LL_RCC_PERIPH_FREQUENCY_NA;
  984. break;
  985. }
  986. return rng_frequency;
  987. }
  988. #if defined(USB_OTG_FS)||defined(USB)
  989. /**
  990. * @brief Return USBx clock frequency
  991. * @param USBxSource This parameter can be one of the following values:
  992. * @arg @ref LL_RCC_USB_CLKSOURCE
  993. * @retval USB clock frequency (in Hz)
  994. * - @ref LL_RCC_PERIPH_FREQUENCY_NO indicates that oscillator (MSI) or PLL is not ready
  995. * - @ref LL_RCC_PERIPH_FREQUENCY_NA indicates that no clock source selected
  996. */
  997. uint32_t LL_RCC_GetUSBClockFreq(uint32_t USBxSource)
  998. {
  999. uint32_t usb_frequency = LL_RCC_PERIPH_FREQUENCY_NO;
  1000. /* Check parameter */
  1001. assert_param(IS_LL_RCC_USB_CLKSOURCE(USBxSource));
  1002. /* USBCLK clock frequency */
  1003. switch (LL_RCC_GetUSBClockSource(USBxSource))
  1004. {
  1005. #if defined(RCC_PLLSAI1_SUPPORT)
  1006. case LL_RCC_USB_CLKSOURCE_PLLSAI1: /* PLLSAI1 clock used as USB clock source */
  1007. if (LL_RCC_PLLSAI1_IsReady() != 0U)
  1008. {
  1009. if (LL_RCC_PLLSAI1_IsEnabledDomain_48M() != 0U)
  1010. {
  1011. usb_frequency = RCC_PLLSAI1_GetFreqDomain_48M();
  1012. }
  1013. }
  1014. break;
  1015. #endif /* RCC_PLLSAI1_SUPPORT */
  1016. case LL_RCC_USB_CLKSOURCE_PLL: /* PLL clock used as USB clock source */
  1017. if (LL_RCC_PLL_IsReady() != 0U)
  1018. {
  1019. if (LL_RCC_PLL_IsEnabledDomain_48M() != 0U)
  1020. {
  1021. usb_frequency = RCC_PLL_GetFreqDomain_48M();
  1022. }
  1023. }
  1024. break;
  1025. case LL_RCC_USB_CLKSOURCE_MSI: /* MSI clock used as USB clock source */
  1026. if (LL_RCC_MSI_IsReady() != 0U)
  1027. {
  1028. usb_frequency = __LL_RCC_CALC_MSI_FREQ(LL_RCC_MSI_IsEnabledRangeSelect(),
  1029. ((LL_RCC_MSI_IsEnabledRangeSelect() != 0U) ?
  1030. LL_RCC_MSI_GetRange() :
  1031. LL_RCC_MSI_GetRangeAfterStandby()));
  1032. }
  1033. break;
  1034. #if defined(RCC_HSI48_SUPPORT)
  1035. case LL_RCC_USB_CLKSOURCE_HSI48: /* HSI48 used as USB clock source */
  1036. if (LL_RCC_HSI48_IsReady() != 0U)
  1037. {
  1038. usb_frequency = HSI48_VALUE;
  1039. }
  1040. break;
  1041. #else
  1042. case LL_RCC_USB_CLKSOURCE_NONE: /* No clock used as USB clock source */
  1043. #endif
  1044. default:
  1045. usb_frequency = LL_RCC_PERIPH_FREQUENCY_NA;
  1046. break;
  1047. }
  1048. return usb_frequency;
  1049. }
  1050. #endif /* USB_OTG_FS || USB */
  1051. /**
  1052. * @brief Return ADCx clock frequency
  1053. * @param ADCxSource This parameter can be one of the following values:
  1054. * @arg @ref LL_RCC_ADC_CLKSOURCE
  1055. * @retval ADC clock frequency (in Hz)
  1056. * - @ref LL_RCC_PERIPH_FREQUENCY_NO indicates that oscillator (MSI) or PLL is not ready
  1057. * - @ref LL_RCC_PERIPH_FREQUENCY_NA indicates that no clock source selected
  1058. */
  1059. uint32_t LL_RCC_GetADCClockFreq(uint32_t ADCxSource)
  1060. {
  1061. uint32_t adc_frequency = LL_RCC_PERIPH_FREQUENCY_NO;
  1062. /* Check parameter */
  1063. assert_param(IS_LL_RCC_ADC_CLKSOURCE(ADCxSource));
  1064. /* ADCCLK clock frequency */
  1065. switch (LL_RCC_GetADCClockSource(ADCxSource))
  1066. {
  1067. #if defined(RCC_PLLSAI1_SUPPORT)
  1068. case LL_RCC_ADC_CLKSOURCE_PLLSAI1: /* PLLSAI1 clock used as ADC clock source */
  1069. if (LL_RCC_PLLSAI1_IsReady() != 0U)
  1070. {
  1071. if (LL_RCC_PLLSAI1_IsEnabledDomain_ADC() != 0U)
  1072. {
  1073. adc_frequency = RCC_PLLSAI1_GetFreqDomain_ADC();
  1074. }
  1075. }
  1076. break;
  1077. #endif /* RCC_PLLSAI1_SUPPORT */
  1078. #if defined(RCC_PLLSAI2_SUPPORT) && defined(LL_RCC_ADC_CLKSOURCE_PLLSAI2)
  1079. case LL_RCC_ADC_CLKSOURCE_PLLSAI2: /* PLLSAI2 clock used as ADC clock source */
  1080. if (LL_RCC_PLLSAI2_IsReady() != 0U)
  1081. {
  1082. if (LL_RCC_PLLSAI2_IsEnabledDomain_ADC() != 0U)
  1083. {
  1084. adc_frequency = RCC_PLLSAI2_GetFreqDomain_ADC();
  1085. }
  1086. }
  1087. break;
  1088. #endif /* RCC_PLLSAI2_SUPPORT && LL_RCC_ADC_CLKSOURCE_PLLSAI2 */
  1089. case LL_RCC_ADC_CLKSOURCE_SYSCLK: /* SYSCLK clock used as ADC clock source */
  1090. adc_frequency = RCC_GetSystemClockFreq();
  1091. break;
  1092. case LL_RCC_ADC_CLKSOURCE_NONE: /* No clock used as ADC clock source */
  1093. default:
  1094. adc_frequency = LL_RCC_PERIPH_FREQUENCY_NA;
  1095. break;
  1096. }
  1097. return adc_frequency;
  1098. }
  1099. #if defined(SWPMI1)
  1100. /**
  1101. * @brief Return SWPMIx clock frequency
  1102. * @param SWPMIxSource This parameter can be one of the following values:
  1103. * @arg @ref LL_RCC_SWPMI1_CLKSOURCE
  1104. * @retval SWPMI clock frequency (in Hz)
  1105. * - @ref LL_RCC_PERIPH_FREQUENCY_NO indicates that oscillator (HSI) is not ready
  1106. */
  1107. uint32_t LL_RCC_GetSWPMIClockFreq(uint32_t SWPMIxSource)
  1108. {
  1109. uint32_t swpmi_frequency = LL_RCC_PERIPH_FREQUENCY_NO;
  1110. /* Check parameter */
  1111. assert_param(IS_LL_RCC_SWPMI_CLKSOURCE(SWPMIxSource));
  1112. /* SWPMI1CLK clock frequency */
  1113. switch (LL_RCC_GetSWPMIClockSource(SWPMIxSource))
  1114. {
  1115. case LL_RCC_SWPMI1_CLKSOURCE_HSI: /* SWPMI1 Clock is HSI Osc. */
  1116. if (LL_RCC_HSI_IsReady())
  1117. {
  1118. swpmi_frequency = HSI_VALUE;
  1119. }
  1120. break;
  1121. case LL_RCC_SWPMI1_CLKSOURCE_PCLK1: /* SWPMI1 Clock is PCLK1 */
  1122. swpmi_frequency = RCC_GetPCLK1ClockFreq(RCC_GetHCLKClockFreq(RCC_GetSystemClockFreq()));
  1123. break;
  1124. default:
  1125. break;
  1126. }
  1127. return swpmi_frequency;
  1128. }
  1129. #endif /* SWPMI1 */
  1130. #if defined(DFSDM1_Channel0)
  1131. /**
  1132. * @brief Return DFSDMx clock frequency
  1133. * @param DFSDMxSource This parameter can be one of the following values:
  1134. * @arg @ref LL_RCC_DFSDM1_CLKSOURCE
  1135. * @retval DFSDM clock frequency (in Hz)
  1136. */
  1137. uint32_t LL_RCC_GetDFSDMClockFreq(uint32_t DFSDMxSource)
  1138. {
  1139. uint32_t dfsdm_frequency = LL_RCC_PERIPH_FREQUENCY_NO;
  1140. /* Check parameter */
  1141. assert_param(IS_LL_RCC_DFSDM_CLKSOURCE(DFSDMxSource));
  1142. /* DFSDM1CLK clock frequency */
  1143. switch (LL_RCC_GetDFSDMClockSource(DFSDMxSource))
  1144. {
  1145. case LL_RCC_DFSDM1_CLKSOURCE_SYSCLK: /* DFSDM1 Clock is SYSCLK */
  1146. dfsdm_frequency = RCC_GetSystemClockFreq();
  1147. break;
  1148. case LL_RCC_DFSDM1_CLKSOURCE_PCLK2: /* DFSDM1 Clock is PCLK2 */
  1149. dfsdm_frequency = RCC_GetPCLK2ClockFreq(RCC_GetHCLKClockFreq(RCC_GetSystemClockFreq()));
  1150. break;
  1151. default:
  1152. break;
  1153. }
  1154. return dfsdm_frequency;
  1155. }
  1156. #if defined(RCC_CCIPR2_DFSDM1SEL)
  1157. /**
  1158. * @brief Return DFSDMx Audio clock frequency
  1159. * @param DFSDMxSource This parameter can be one of the following values:
  1160. * @arg @ref LL_RCC_DFSDM1_AUDIO_CLKSOURCE
  1161. * @retval DFSDM clock frequency (in Hz)
  1162. * - @ref LL_RCC_PERIPH_FREQUENCY_NO indicates that oscillator is not ready
  1163. */
  1164. uint32_t LL_RCC_GetDFSDMAudioClockFreq(uint32_t DFSDMxSource)
  1165. {
  1166. uint32_t dfsdm_frequency = LL_RCC_PERIPH_FREQUENCY_NO;
  1167. /* Check parameter */
  1168. assert_param(IS_LL_RCC_DFSDM_AUDIO_CLKSOURCE(DFSDMxSource));
  1169. /* DFSDM1CLK clock frequency */
  1170. switch (LL_RCC_GetDFSDMAudioClockSource(DFSDMxSource))
  1171. {
  1172. case LL_RCC_DFSDM1_AUDIO_CLKSOURCE_SAI1: /* SAI1 clock used as DFSDM1 audio clock */
  1173. dfsdm_frequency = LL_RCC_GetSAIClockFreq(LL_RCC_SAI1_CLKSOURCE);
  1174. break;
  1175. case LL_RCC_DFSDM1_AUDIO_CLKSOURCE_MSI: /* MSI clock used as DFSDM1 audio clock */
  1176. if (LL_RCC_MSI_IsReady() != 0U)
  1177. {
  1178. dfsdm_frequency = __LL_RCC_CALC_MSI_FREQ(LL_RCC_MSI_IsEnabledRangeSelect(),
  1179. ((LL_RCC_MSI_IsEnabledRangeSelect() != 0U) ?
  1180. LL_RCC_MSI_GetRange() :
  1181. LL_RCC_MSI_GetRangeAfterStandby()));
  1182. }
  1183. break;
  1184. case LL_RCC_DFSDM1_AUDIO_CLKSOURCE_HSI: /* HSI clock used as DFSDM1 audio clock */
  1185. default:
  1186. if (LL_RCC_HSI_IsReady() != 0U)
  1187. {
  1188. dfsdm_frequency = HSI_VALUE;
  1189. }
  1190. break;
  1191. }
  1192. return dfsdm_frequency;
  1193. }
  1194. #endif /* RCC_CCIPR2_DFSDM1SEL */
  1195. #endif /* DFSDM1_Channel0 */
  1196. #if defined(DSI)
  1197. /**
  1198. * @brief Return DSI clock frequency
  1199. * @param DSIxSource This parameter can be one of the following values:
  1200. * @arg @ref LL_RCC_DSI_CLKSOURCE
  1201. * @retval DSI clock frequency (in Hz)
  1202. * - @ref LL_RCC_PERIPH_FREQUENCY_NO indicates that oscillator is not ready
  1203. * - @ref LL_RCC_PERIPH_FREQUENCY_NA indicates that external clock is used
  1204. */
  1205. uint32_t LL_RCC_GetDSIClockFreq(uint32_t DSIxSource)
  1206. {
  1207. uint32_t dsi_frequency = LL_RCC_PERIPH_FREQUENCY_NO;
  1208. /* Check parameter */
  1209. assert_param(IS_LL_RCC_DSI_CLKSOURCE(DSIxSource));
  1210. /* DSICLK clock frequency */
  1211. switch (LL_RCC_GetDSIClockSource(DSIxSource))
  1212. {
  1213. case LL_RCC_DSI_CLKSOURCE_PLL: /* DSI Clock is PLLSAI2 Osc. */
  1214. if (LL_RCC_PLLSAI2_IsReady() != 0U)
  1215. {
  1216. if (LL_RCC_PLLSAI2_IsEnabledDomain_DSI() != 0U)
  1217. {
  1218. dsi_frequency = RCC_PLLSAI2_GetFreqDomain_DSI();
  1219. }
  1220. }
  1221. break;
  1222. case LL_RCC_DSI_CLKSOURCE_PHY: /* DSI Clock is DSI physical clock. */
  1223. default:
  1224. dsi_frequency = LL_RCC_PERIPH_FREQUENCY_NA;
  1225. break;
  1226. }
  1227. return dsi_frequency;
  1228. }
  1229. #endif /* DSI */
  1230. #if defined(LTDC)
  1231. /**
  1232. * @brief Return LTDC clock frequency
  1233. * @param LTDCxSource This parameter can be one of the following values:
  1234. * @arg @ref LL_RCC_LTDC_CLKSOURCE
  1235. * @retval LTDC clock frequency (in Hz)
  1236. * - @ref LL_RCC_PERIPH_FREQUENCY_NO indicates that oscillator PLLSAI is not ready
  1237. */
  1238. uint32_t LL_RCC_GetLTDCClockFreq(uint32_t LTDCxSource)
  1239. {
  1240. uint32_t ltdc_frequency = LL_RCC_PERIPH_FREQUENCY_NO;
  1241. /* Check parameter */
  1242. assert_param(IS_LL_RCC_LTDC_CLKSOURCE(LTDCxSource));
  1243. if (LL_RCC_PLLSAI2_IsReady() != 0U)
  1244. {
  1245. if (LL_RCC_PLLSAI2_IsEnabledDomain_LTDC() != 0U)
  1246. {
  1247. ltdc_frequency = RCC_PLLSAI2_GetFreqDomain_LTDC();
  1248. }
  1249. }
  1250. return ltdc_frequency;
  1251. }
  1252. #endif /* LTDC */
  1253. #if defined(OCTOSPI1)
  1254. /**
  1255. * @brief Return OCTOSPI clock frequency
  1256. * @param OCTOSPIxSource This parameter can be one of the following values:
  1257. * @arg @ref LL_RCC_OCTOSPI_CLKSOURCE
  1258. * @retval OCTOSPI clock frequency (in Hz)
  1259. * - @ref LL_RCC_PERIPH_FREQUENCY_NO indicates that oscillator PLLSAI is not ready
  1260. */
  1261. uint32_t LL_RCC_GetOCTOSPIClockFreq(uint32_t OCTOSPIxSource)
  1262. {
  1263. uint32_t octospi_frequency = LL_RCC_PERIPH_FREQUENCY_NO;
  1264. /* Check parameter */
  1265. assert_param(IS_LL_RCC_OCTOSPI_CLKSOURCE(OCTOSPIxSource));
  1266. /* OCTOSPI clock frequency */
  1267. switch (LL_RCC_GetOCTOSPIClockSource(OCTOSPIxSource))
  1268. {
  1269. case LL_RCC_OCTOSPI_CLKSOURCE_SYSCLK: /* OCTOSPI clock is SYSCLK */
  1270. octospi_frequency = RCC_GetSystemClockFreq();
  1271. break;
  1272. case LL_RCC_OCTOSPI_CLKSOURCE_MSI: /* MSI clock used as OCTOSPI clock */
  1273. if (LL_RCC_MSI_IsReady() != 0U)
  1274. {
  1275. octospi_frequency = __LL_RCC_CALC_MSI_FREQ(LL_RCC_MSI_IsEnabledRangeSelect(),
  1276. ((LL_RCC_MSI_IsEnabledRangeSelect() != 0U) ?
  1277. LL_RCC_MSI_GetRange() :
  1278. LL_RCC_MSI_GetRangeAfterStandby()));
  1279. }
  1280. break;
  1281. case LL_RCC_OCTOSPI_CLKSOURCE_PLL: /* PLL clock used as OCTOSPI source */
  1282. if (LL_RCC_PLL_IsReady() != 0U)
  1283. {
  1284. if (LL_RCC_PLL_IsEnabledDomain_48M() != 0U)
  1285. {
  1286. octospi_frequency = RCC_PLL_GetFreqDomain_48M();
  1287. }
  1288. }
  1289. break;
  1290. default:
  1291. octospi_frequency = LL_RCC_PERIPH_FREQUENCY_NO;
  1292. break;
  1293. }
  1294. return octospi_frequency;
  1295. }
  1296. #endif /* OCTOSPI1 */
  1297. /**
  1298. * @}
  1299. */
  1300. /**
  1301. * @}
  1302. */
  1303. /** @addtogroup RCC_LL_Private_Functions
  1304. * @{
  1305. */
  1306. /**
  1307. * @brief Return SYSTEM clock frequency
  1308. * @retval SYSTEM clock frequency (in Hz)
  1309. */
  1310. static uint32_t RCC_GetSystemClockFreq(void)
  1311. {
  1312. uint32_t frequency;
  1313. /* Get SYSCLK source -------------------------------------------------------*/
  1314. switch (LL_RCC_GetSysClkSource())
  1315. {
  1316. case LL_RCC_SYS_CLKSOURCE_STATUS_MSI: /* MSI used as system clock source */
  1317. frequency = __LL_RCC_CALC_MSI_FREQ(LL_RCC_MSI_IsEnabledRangeSelect(),
  1318. ((LL_RCC_MSI_IsEnabledRangeSelect() != 0U) ?
  1319. LL_RCC_MSI_GetRange() :
  1320. LL_RCC_MSI_GetRangeAfterStandby()));
  1321. break;
  1322. case LL_RCC_SYS_CLKSOURCE_STATUS_HSI: /* HSI used as system clock source */
  1323. frequency = HSI_VALUE;
  1324. break;
  1325. case LL_RCC_SYS_CLKSOURCE_STATUS_HSE: /* HSE used as system clock source */
  1326. frequency = HSE_VALUE;
  1327. break;
  1328. case LL_RCC_SYS_CLKSOURCE_STATUS_PLL: /* PLL used as system clock source */
  1329. frequency = RCC_PLL_GetFreqDomain_SYS();
  1330. break;
  1331. default:
  1332. frequency = __LL_RCC_CALC_MSI_FREQ(LL_RCC_MSI_IsEnabledRangeSelect(),
  1333. ((LL_RCC_MSI_IsEnabledRangeSelect() != 0U) ?
  1334. LL_RCC_MSI_GetRange() :
  1335. LL_RCC_MSI_GetRangeAfterStandby()));
  1336. break;
  1337. }
  1338. return frequency;
  1339. }
  1340. /**
  1341. * @brief Return HCLK clock frequency
  1342. * @param SYSCLK_Frequency SYSCLK clock frequency
  1343. * @retval HCLK clock frequency (in Hz)
  1344. */
  1345. static uint32_t RCC_GetHCLKClockFreq(uint32_t SYSCLK_Frequency)
  1346. {
  1347. /* HCLK clock frequency */
  1348. return __LL_RCC_CALC_HCLK_FREQ(SYSCLK_Frequency, LL_RCC_GetAHBPrescaler());
  1349. }
  1350. /**
  1351. * @brief Return PCLK1 clock frequency
  1352. * @param HCLK_Frequency HCLK clock frequency
  1353. * @retval PCLK1 clock frequency (in Hz)
  1354. */
  1355. static uint32_t RCC_GetPCLK1ClockFreq(uint32_t HCLK_Frequency)
  1356. {
  1357. /* PCLK1 clock frequency */
  1358. return __LL_RCC_CALC_PCLK1_FREQ(HCLK_Frequency, LL_RCC_GetAPB1Prescaler());
  1359. }
  1360. /**
  1361. * @brief Return PCLK2 clock frequency
  1362. * @param HCLK_Frequency HCLK clock frequency
  1363. * @retval PCLK2 clock frequency (in Hz)
  1364. */
  1365. static uint32_t RCC_GetPCLK2ClockFreq(uint32_t HCLK_Frequency)
  1366. {
  1367. /* PCLK2 clock frequency */
  1368. return __LL_RCC_CALC_PCLK2_FREQ(HCLK_Frequency, LL_RCC_GetAPB2Prescaler());
  1369. }
  1370. /**
  1371. * @brief Return PLL clock frequency used for system domain
  1372. * @retval PLL clock frequency (in Hz)
  1373. */
  1374. static uint32_t RCC_PLL_GetFreqDomain_SYS(void)
  1375. {
  1376. uint32_t pllinputfreq, pllsource;
  1377. /* PLL_VCO = (HSE_VALUE or HSI_VALUE or MSI_VALUE/ PLLM) * PLLN
  1378. SYSCLK = PLL_VCO / PLLR
  1379. */
  1380. pllsource = LL_RCC_PLL_GetMainSource();
  1381. switch (pllsource)
  1382. {
  1383. case LL_RCC_PLLSOURCE_MSI: /* MSI used as PLL clock source */
  1384. pllinputfreq = __LL_RCC_CALC_MSI_FREQ(LL_RCC_MSI_IsEnabledRangeSelect(),
  1385. ((LL_RCC_MSI_IsEnabledRangeSelect() != 0U) ?
  1386. LL_RCC_MSI_GetRange() :
  1387. LL_RCC_MSI_GetRangeAfterStandby()));
  1388. break;
  1389. case LL_RCC_PLLSOURCE_HSI: /* HSI used as PLL clock source */
  1390. pllinputfreq = HSI_VALUE;
  1391. break;
  1392. case LL_RCC_PLLSOURCE_HSE: /* HSE used as PLL clock source */
  1393. pllinputfreq = HSE_VALUE;
  1394. break;
  1395. default:
  1396. pllinputfreq = __LL_RCC_CALC_MSI_FREQ(LL_RCC_MSI_IsEnabledRangeSelect(),
  1397. ((LL_RCC_MSI_IsEnabledRangeSelect() != 0U) ?
  1398. LL_RCC_MSI_GetRange() :
  1399. LL_RCC_MSI_GetRangeAfterStandby()));
  1400. break;
  1401. }
  1402. return __LL_RCC_CALC_PLLCLK_FREQ(pllinputfreq, LL_RCC_PLL_GetDivider(),
  1403. LL_RCC_PLL_GetN(), LL_RCC_PLL_GetR());
  1404. }
  1405. #if defined(SAI1)
  1406. /**
  1407. * @brief Return PLL clock frequency used for SAI domain
  1408. * @retval PLL clock frequency (in Hz)
  1409. */
  1410. static uint32_t RCC_PLL_GetFreqDomain_SAI(void)
  1411. {
  1412. uint32_t pllinputfreq, pllsource;
  1413. /* PLL_VCO = (HSE_VALUE or HSI_VALUE or MSI_VALUE / PLLM) * PLLN
  1414. SAI Domain clock = PLL_VCO / PLLP
  1415. */
  1416. pllsource = LL_RCC_PLL_GetMainSource();
  1417. switch (pllsource)
  1418. {
  1419. case LL_RCC_PLLSOURCE_MSI: /* MSI used as PLL clock source */
  1420. pllinputfreq = __LL_RCC_CALC_MSI_FREQ(LL_RCC_MSI_IsEnabledRangeSelect(),
  1421. ((LL_RCC_MSI_IsEnabledRangeSelect() != 0U) ?
  1422. LL_RCC_MSI_GetRange() :
  1423. LL_RCC_MSI_GetRangeAfterStandby()));
  1424. break;
  1425. case LL_RCC_PLLSOURCE_HSI: /* HSI used as PLL clock source */
  1426. pllinputfreq = HSI_VALUE;
  1427. break;
  1428. case LL_RCC_PLLSOURCE_HSE: /* HSE used as PLL clock source */
  1429. pllinputfreq = HSE_VALUE;
  1430. break;
  1431. default:
  1432. pllinputfreq = __LL_RCC_CALC_MSI_FREQ(LL_RCC_MSI_IsEnabledRangeSelect(),
  1433. ((LL_RCC_MSI_IsEnabledRangeSelect() != 0U) ?
  1434. LL_RCC_MSI_GetRange() :
  1435. LL_RCC_MSI_GetRangeAfterStandby()));
  1436. break;
  1437. }
  1438. return __LL_RCC_CALC_PLLCLK_SAI_FREQ(pllinputfreq, LL_RCC_PLL_GetDivider(),
  1439. LL_RCC_PLL_GetN(), LL_RCC_PLL_GetP());
  1440. }
  1441. #endif /* SAI1 */
  1442. /**
  1443. * @brief Return PLL clock frequency used for 48 MHz domain
  1444. * @retval PLL clock frequency (in Hz)
  1445. */
  1446. static uint32_t RCC_PLL_GetFreqDomain_48M(void)
  1447. {
  1448. uint32_t pllinputfreq, pllsource;
  1449. /* PLL_VCO = (HSE_VALUE or HSI_VALUE or MSI_VALUE/ PLLM) * PLLN
  1450. 48M Domain clock = PLL_VCO / PLLQ
  1451. */
  1452. pllsource = LL_RCC_PLL_GetMainSource();
  1453. switch (pllsource)
  1454. {
  1455. case LL_RCC_PLLSOURCE_MSI: /* MSI used as PLL clock source */
  1456. pllinputfreq = __LL_RCC_CALC_MSI_FREQ(LL_RCC_MSI_IsEnabledRangeSelect(),
  1457. ((LL_RCC_MSI_IsEnabledRangeSelect() != 0U) ?
  1458. LL_RCC_MSI_GetRange() :
  1459. LL_RCC_MSI_GetRangeAfterStandby()));
  1460. break;
  1461. case LL_RCC_PLLSOURCE_HSI: /* HSI used as PLL clock source */
  1462. pllinputfreq = HSI_VALUE;
  1463. break;
  1464. case LL_RCC_PLLSOURCE_HSE: /* HSE used as PLL clock source */
  1465. pllinputfreq = HSE_VALUE;
  1466. break;
  1467. default:
  1468. pllinputfreq = __LL_RCC_CALC_MSI_FREQ(LL_RCC_MSI_IsEnabledRangeSelect(),
  1469. ((LL_RCC_MSI_IsEnabledRangeSelect() != 0U) ?
  1470. LL_RCC_MSI_GetRange() :
  1471. LL_RCC_MSI_GetRangeAfterStandby()));
  1472. break;
  1473. }
  1474. return __LL_RCC_CALC_PLLCLK_48M_FREQ(pllinputfreq, LL_RCC_PLL_GetDivider(),
  1475. LL_RCC_PLL_GetN(), LL_RCC_PLL_GetQ());
  1476. }
  1477. #if defined(DSI)
  1478. /**
  1479. * @brief Return PLL clock frequency used for DSI clock
  1480. * @retval PLL clock frequency (in Hz)
  1481. */
  1482. static uint32_t RCC_PLLSAI2_GetFreqDomain_DSI(void)
  1483. {
  1484. uint32_t pllinputfreq, pllsource;
  1485. /* PLLSAI2_VCO = (HSE_VALUE or HSI_VALUE or MSI_VALUE/ PLLSAI2M) * PLLSAI2N */
  1486. /* DSICLK = PLLSAI2_VCO / PLLSAI2R */
  1487. pllsource = LL_RCC_PLL_GetMainSource();
  1488. switch (pllsource)
  1489. {
  1490. case LL_RCC_PLLSOURCE_MSI: /* MSI used as PLLSAI2 clock source */
  1491. pllinputfreq = __LL_RCC_CALC_MSI_FREQ(LL_RCC_MSI_IsEnabledRangeSelect(),
  1492. ((LL_RCC_MSI_IsEnabledRangeSelect() != 0U) ?
  1493. LL_RCC_MSI_GetRange() :
  1494. LL_RCC_MSI_GetRangeAfterStandby()));
  1495. break;
  1496. case LL_RCC_PLLSOURCE_HSI: /* HSI used as PLLSAI2 clock source */
  1497. pllinputfreq = HSI_VALUE;
  1498. break;
  1499. case LL_RCC_PLLSOURCE_HSE: /* HSE used as PLLSAI2 clock source */
  1500. pllinputfreq = HSE_VALUE;
  1501. break;
  1502. default:
  1503. pllinputfreq = __LL_RCC_CALC_MSI_FREQ(LL_RCC_MSI_IsEnabledRangeSelect(),
  1504. ((LL_RCC_MSI_IsEnabledRangeSelect() != 0U) ?
  1505. LL_RCC_MSI_GetRange() :
  1506. LL_RCC_MSI_GetRangeAfterStandby()));
  1507. break;
  1508. }
  1509. return __LL_RCC_CALC_PLLSAI2_DSI_FREQ(pllinputfreq, LL_RCC_PLLSAI2_GetDivider(),
  1510. LL_RCC_PLLSAI2_GetN(), LL_RCC_PLLSAI2_GetR());
  1511. }
  1512. #endif /* DSI */
  1513. #if defined(RCC_PLLSAI1_SUPPORT)
  1514. /**
  1515. * @brief Return PLLSAI1 clock frequency used for SAI domain
  1516. * @retval PLLSAI1 clock frequency (in Hz)
  1517. */
  1518. static uint32_t RCC_PLLSAI1_GetFreqDomain_SAI(void)
  1519. {
  1520. uint32_t pllinputfreq, pllsource;
  1521. #if defined(RCC_PLLSAI2M_DIV_1_16_SUPPORT)
  1522. /* PLLSAI1_VCO = (HSE_VALUE or HSI_VALUE or MSI_VALUE/ PLLSAI1M) * PLLSAI1N */
  1523. #else
  1524. /* PLLSAI1_VCO = (HSE_VALUE or HSI_VALUE or MSI_VALUE/ PLLM) * PLLSAI1N */
  1525. #endif
  1526. /* SAI Domain clock = PLLSAI1_VCO / PLLSAI1P */
  1527. pllsource = LL_RCC_PLL_GetMainSource();
  1528. switch (pllsource)
  1529. {
  1530. case LL_RCC_PLLSOURCE_MSI: /* MSI used as PLLSAI1 clock source */
  1531. pllinputfreq = __LL_RCC_CALC_MSI_FREQ(LL_RCC_MSI_IsEnabledRangeSelect(),
  1532. ((LL_RCC_MSI_IsEnabledRangeSelect() != 0U) ?
  1533. LL_RCC_MSI_GetRange() :
  1534. LL_RCC_MSI_GetRangeAfterStandby()));
  1535. break;
  1536. case LL_RCC_PLLSOURCE_HSI: /* HSI used as PLLSAI1 clock source */
  1537. pllinputfreq = HSI_VALUE;
  1538. break;
  1539. case LL_RCC_PLLSOURCE_HSE: /* HSE used as PLLSAI1 clock source */
  1540. pllinputfreq = HSE_VALUE;
  1541. break;
  1542. default:
  1543. pllinputfreq = __LL_RCC_CALC_MSI_FREQ(LL_RCC_MSI_IsEnabledRangeSelect(),
  1544. ((LL_RCC_MSI_IsEnabledRangeSelect() != 0U) ?
  1545. LL_RCC_MSI_GetRange() :
  1546. LL_RCC_MSI_GetRangeAfterStandby()));
  1547. break;
  1548. }
  1549. return __LL_RCC_CALC_PLLSAI1_SAI_FREQ(pllinputfreq, LL_RCC_PLL_GetDivider(),
  1550. LL_RCC_PLLSAI1_GetN(), LL_RCC_PLLSAI1_GetP());
  1551. }
  1552. /**
  1553. * @brief Return PLLSAI1 clock frequency used for 48Mhz domain
  1554. * @retval PLLSAI1 clock frequency (in Hz)
  1555. */
  1556. static uint32_t RCC_PLLSAI1_GetFreqDomain_48M(void)
  1557. {
  1558. uint32_t pllinputfreq, pllsource;
  1559. #if defined(RCC_PLLSAI2M_DIV_1_16_SUPPORT)
  1560. /* PLLSAI1_VCO = (HSE_VALUE or HSI_VALUE or MSI_VALUE/ PLLSAI1M) * PLLSAI1N */
  1561. #else
  1562. /* PLLSAI1_VCO = (HSE_VALUE or HSI_VALUE or MSI_VALUE/ PLLM) * PLLSAI1N */
  1563. #endif
  1564. /* 48M Domain clock = PLLSAI1_VCO / PLLSAI1Q */
  1565. pllsource = LL_RCC_PLL_GetMainSource();
  1566. switch (pllsource)
  1567. {
  1568. case LL_RCC_PLLSOURCE_MSI: /* MSI used as PLLSAI1 clock source */
  1569. pllinputfreq = __LL_RCC_CALC_MSI_FREQ(LL_RCC_MSI_IsEnabledRangeSelect(),
  1570. ((LL_RCC_MSI_IsEnabledRangeSelect() != 0U) ?
  1571. LL_RCC_MSI_GetRange() :
  1572. LL_RCC_MSI_GetRangeAfterStandby()));
  1573. break;
  1574. case LL_RCC_PLLSOURCE_HSI: /* HSI used as PLLSAI1 clock source */
  1575. pllinputfreq = HSI_VALUE;
  1576. break;
  1577. case LL_RCC_PLLSOURCE_HSE: /* HSE used as PLLSAI1 clock source */
  1578. pllinputfreq = HSE_VALUE;
  1579. break;
  1580. default:
  1581. pllinputfreq = __LL_RCC_CALC_MSI_FREQ(LL_RCC_MSI_IsEnabledRangeSelect(),
  1582. ((LL_RCC_MSI_IsEnabledRangeSelect() != 0U) ?
  1583. LL_RCC_MSI_GetRange() :
  1584. LL_RCC_MSI_GetRangeAfterStandby()));
  1585. break;
  1586. }
  1587. return __LL_RCC_CALC_PLLSAI1_48M_FREQ(pllinputfreq, LL_RCC_PLL_GetDivider(),
  1588. LL_RCC_PLLSAI1_GetN(), LL_RCC_PLLSAI1_GetQ());
  1589. }
  1590. /**
  1591. * @brief Return PLLSAI1 clock frequency used for ADC domain
  1592. * @retval PLLSAI1 clock frequency (in Hz)
  1593. */
  1594. static uint32_t RCC_PLLSAI1_GetFreqDomain_ADC(void)
  1595. {
  1596. uint32_t pllinputfreq, pllsource;
  1597. #if defined(RCC_PLLSAI2M_DIV_1_16_SUPPORT)
  1598. /* PLLSAI1_VCO = (HSE_VALUE or HSI_VALUE or MSI_VALUE/ PLLSAI1M) * PLLSAI1N */
  1599. #else
  1600. /* PLLSAI1_VCO = (HSE_VALUE or HSI_VALUE or MSI_VALUE/ PLLM) * PLLSAI1N */
  1601. #endif
  1602. /* 48M Domain clock = PLLSAI1_VCO / PLLSAI1R */
  1603. pllsource = LL_RCC_PLL_GetMainSource();
  1604. switch (pllsource)
  1605. {
  1606. case LL_RCC_PLLSOURCE_MSI: /* MSI used as PLLSAI1 clock source */
  1607. pllinputfreq = __LL_RCC_CALC_MSI_FREQ(LL_RCC_MSI_IsEnabledRangeSelect(),
  1608. ((LL_RCC_MSI_IsEnabledRangeSelect() != 0U) ?
  1609. LL_RCC_MSI_GetRange() :
  1610. LL_RCC_MSI_GetRangeAfterStandby()));
  1611. break;
  1612. case LL_RCC_PLLSOURCE_HSI: /* HSI used as PLLSAI1 clock source */
  1613. pllinputfreq = HSI_VALUE;
  1614. break;
  1615. case LL_RCC_PLLSOURCE_HSE: /* HSE used as PLLSAI1 clock source */
  1616. pllinputfreq = HSE_VALUE;
  1617. break;
  1618. default:
  1619. pllinputfreq = __LL_RCC_CALC_MSI_FREQ(LL_RCC_MSI_IsEnabledRangeSelect(),
  1620. ((LL_RCC_MSI_IsEnabledRangeSelect() != 0U) ?
  1621. LL_RCC_MSI_GetRange() :
  1622. LL_RCC_MSI_GetRangeAfterStandby()));
  1623. break;
  1624. }
  1625. return __LL_RCC_CALC_PLLSAI1_ADC_FREQ(pllinputfreq, LL_RCC_PLL_GetDivider(),
  1626. LL_RCC_PLLSAI1_GetN(), LL_RCC_PLLSAI1_GetR());
  1627. }
  1628. #endif /* RCC_PLLSAI1_SUPPORT */
  1629. #if defined(RCC_PLLSAI2_SUPPORT)
  1630. /**
  1631. * @brief Return PLLSAI2 clock frequency used for SAI domain
  1632. * @retval PLLSAI2 clock frequency (in Hz)
  1633. */
  1634. static uint32_t RCC_PLLSAI2_GetFreqDomain_SAI(void)
  1635. {
  1636. uint32_t pllinputfreq, pllsource;
  1637. #if defined(RCC_PLLSAI2M_DIV_1_16_SUPPORT)
  1638. /* PLLSAI2_VCO = (HSE_VALUE or HSI_VALUE or MSI_VALUE/ PLLSAI2M) * PLLSAI2N */
  1639. #else
  1640. /* PLLSAI2_VCO = (HSE_VALUE or HSI_VALUE or MSI_VALUE/ PLLM) * PLLSAI2N */
  1641. #endif
  1642. /* SAI Domain clock = PLLSAI2_VCO / PLLSAI2P */
  1643. pllsource = LL_RCC_PLL_GetMainSource();
  1644. switch (pllsource)
  1645. {
  1646. case LL_RCC_PLLSOURCE_MSI: /* MSI used as PLLSAI2 clock source */
  1647. pllinputfreq = __LL_RCC_CALC_MSI_FREQ(LL_RCC_MSI_IsEnabledRangeSelect(),
  1648. ((LL_RCC_MSI_IsEnabledRangeSelect() != 0U) ?
  1649. LL_RCC_MSI_GetRange() :
  1650. LL_RCC_MSI_GetRangeAfterStandby()));
  1651. break;
  1652. case LL_RCC_PLLSOURCE_HSI: /* HSI used as PLLSAI2 clock source */
  1653. pllinputfreq = HSI_VALUE;
  1654. break;
  1655. case LL_RCC_PLLSOURCE_HSE: /* HSE used as PLLSAI2 clock source */
  1656. pllinputfreq = HSE_VALUE;
  1657. break;
  1658. default:
  1659. pllinputfreq = __LL_RCC_CALC_MSI_FREQ(LL_RCC_MSI_IsEnabledRangeSelect(),
  1660. ((LL_RCC_MSI_IsEnabledRangeSelect() != 0U) ?
  1661. LL_RCC_MSI_GetRange() :
  1662. LL_RCC_MSI_GetRangeAfterStandby()));
  1663. break;
  1664. }
  1665. #if defined(RCC_PLLSAI2M_DIV_1_16_SUPPORT)
  1666. return __LL_RCC_CALC_PLLSAI2_SAI_FREQ(pllinputfreq, LL_RCC_PLLSAI2_GetDivider(),
  1667. LL_RCC_PLLSAI2_GetN(), LL_RCC_PLLSAI2_GetP());
  1668. #else
  1669. return __LL_RCC_CALC_PLLSAI2_SAI_FREQ(pllinputfreq, LL_RCC_PLL_GetDivider(),
  1670. LL_RCC_PLLSAI2_GetN(), LL_RCC_PLLSAI2_GetP());
  1671. #endif
  1672. }
  1673. #if defined(LTDC)
  1674. /**
  1675. * @brief Return PLLSAI2 clock frequency used for LTDC domain
  1676. * @retval PLLSAI2 clock frequency (in Hz)
  1677. */
  1678. static uint32_t RCC_PLLSAI2_GetFreqDomain_LTDC(void)
  1679. {
  1680. uint32_t pllinputfreq, pllsource;
  1681. /* PLLSAI2_VCO = (HSE_VALUE or HSI_VALUE or MSI_VALUE/ PLLSAI2M) * PLLSAI2N */
  1682. /* LTDC Domain clock = (PLLSAI2_VCO / PLLSAI2R) / PLLSAI2DIVR */
  1683. pllsource = LL_RCC_PLL_GetMainSource();
  1684. switch (pllsource)
  1685. {
  1686. case LL_RCC_PLLSOURCE_MSI: /* MSI used as PLLSAI2 clock source */
  1687. pllinputfreq = __LL_RCC_CALC_MSI_FREQ(LL_RCC_MSI_IsEnabledRangeSelect(),
  1688. ((LL_RCC_MSI_IsEnabledRangeSelect() != 0U) ?
  1689. LL_RCC_MSI_GetRange() :
  1690. LL_RCC_MSI_GetRangeAfterStandby()));
  1691. break;
  1692. case LL_RCC_PLLSOURCE_HSI: /* HSI used as PLLSAI2 clock source */
  1693. pllinputfreq = HSI_VALUE;
  1694. break;
  1695. case LL_RCC_PLLSOURCE_HSE: /* HSE used as PLLSAI2 clock source */
  1696. pllinputfreq = HSE_VALUE;
  1697. break;
  1698. default:
  1699. pllinputfreq = __LL_RCC_CALC_MSI_FREQ(LL_RCC_MSI_IsEnabledRangeSelect(),
  1700. ((LL_RCC_MSI_IsEnabledRangeSelect() != 0U) ?
  1701. LL_RCC_MSI_GetRange() :
  1702. LL_RCC_MSI_GetRangeAfterStandby()));
  1703. break;
  1704. }
  1705. return __LL_RCC_CALC_PLLSAI2_LTDC_FREQ(pllinputfreq, LL_RCC_PLLSAI2_GetDivider(),
  1706. LL_RCC_PLLSAI2_GetN(), LL_RCC_PLLSAI2_GetR(), LL_RCC_PLLSAI2_GetDIVR());
  1707. }
  1708. #else
  1709. /**
  1710. * @brief Return PLLSAI2 clock frequency used for ADC domain
  1711. * @retval PLLSAI2 clock frequency (in Hz)
  1712. */
  1713. static uint32_t RCC_PLLSAI2_GetFreqDomain_ADC(void)
  1714. {
  1715. uint32_t pllinputfreq = 0U, pllsource = 0U;
  1716. /* PLLSAI2_VCO = (HSE_VALUE or HSI_VALUE or MSI_VALUE/ PLLM) * PLLSAI2N */
  1717. /* 48M Domain clock = PLLSAI2_VCO / PLLSAI2R */
  1718. pllsource = LL_RCC_PLL_GetMainSource();
  1719. switch (pllsource)
  1720. {
  1721. case LL_RCC_PLLSOURCE_MSI: /* MSI used as PLLSAI2 clock source */
  1722. pllinputfreq = __LL_RCC_CALC_MSI_FREQ(LL_RCC_MSI_IsEnabledRangeSelect(),
  1723. ((LL_RCC_MSI_IsEnabledRangeSelect() != 0U) ?
  1724. LL_RCC_MSI_GetRange() :
  1725. LL_RCC_MSI_GetRangeAfterStandby()));
  1726. break;
  1727. case LL_RCC_PLLSOURCE_HSI: /* HSI used as PLLSAI2 clock source */
  1728. pllinputfreq = HSI_VALUE;
  1729. break;
  1730. case LL_RCC_PLLSOURCE_HSE: /* HSE used as PLLSAI2 clock source */
  1731. pllinputfreq = HSE_VALUE;
  1732. break;
  1733. default:
  1734. pllinputfreq = __LL_RCC_CALC_MSI_FREQ(LL_RCC_MSI_IsEnabledRangeSelect(),
  1735. ((LL_RCC_MSI_IsEnabledRangeSelect() != 0U) ?
  1736. LL_RCC_MSI_GetRange() :
  1737. LL_RCC_MSI_GetRangeAfterStandby()));
  1738. break;
  1739. }
  1740. return __LL_RCC_CALC_PLLSAI2_ADC_FREQ(pllinputfreq, LL_RCC_PLL_GetDivider(),
  1741. LL_RCC_PLLSAI2_GetN(), LL_RCC_PLLSAI2_GetR());
  1742. }
  1743. #endif /* LTDC */
  1744. #endif /*RCC_PLLSAI2_SUPPORT*/
  1745. /**
  1746. * @}
  1747. */
  1748. /**
  1749. * @}
  1750. */
  1751. #endif /* defined(RCC) */
  1752. /**
  1753. * @}
  1754. */
  1755. #endif /* USE_FULL_LL_DRIVER */