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  1. /**
  2.   ******************************************************************************
  3.   * @file    stm32f1xx_hal_rcc.h
  4.   * @author  MCD Application Team
  5.   * @brief   Header file of RCC HAL module.
  6.   ******************************************************************************
  7.   * @attention
  8.   *
  9.   * Copyright (c) 2016 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.  
  18. /* Define to prevent recursive inclusion -------------------------------------*/
  19. #ifndef __STM32F1xx_HAL_RCC_H
  20. #define __STM32F1xx_HAL_RCC_H
  21.  
  22. #ifdef __cplusplus
  23. extern "C" {
  24. #endif
  25.  
  26. /* Includes ------------------------------------------------------------------*/
  27. #include "stm32f1xx_hal_def.h"
  28.  
  29.  
  30. /** @addtogroup STM32F1xx_HAL_Driver
  31.   * @{
  32.   */
  33.  
  34. /** @addtogroup RCC
  35.   * @{
  36.   */
  37.  
  38. /* Exported types ------------------------------------------------------------*/
  39.  
  40. /** @defgroup RCC_Exported_Types RCC Exported Types
  41.   * @{
  42.   */
  43.  
  44. /**
  45.   * @brief  RCC PLL configuration structure definition
  46.   */
  47. typedef struct
  48. {
  49.   uint32_t PLLState;      /*!< PLLState: The new state of the PLL.
  50.                               This parameter can be a value of @ref RCC_PLL_Config */
  51.  
  52.   uint32_t PLLSource;     /*!< PLLSource: PLL entry clock source.
  53.                               This parameter must be a value of @ref RCC_PLL_Clock_Source */
  54.  
  55.   uint32_t PLLMUL;        /*!< PLLMUL: Multiplication factor for PLL VCO input clock
  56.                               This parameter must be a value of @ref RCCEx_PLL_Multiplication_Factor */
  57. } RCC_PLLInitTypeDef;
  58.  
  59. /**
  60.   * @brief  RCC System, AHB and APB busses clock configuration structure definition
  61.   */
  62. typedef struct
  63. {
  64.   uint32_t ClockType;             /*!< The clock to be configured.
  65.                                        This parameter can be a value of @ref RCC_System_Clock_Type */
  66.  
  67.   uint32_t SYSCLKSource;          /*!< The clock source (SYSCLKS) used as system clock.
  68.                                        This parameter can be a value of @ref RCC_System_Clock_Source */
  69.  
  70.   uint32_t AHBCLKDivider;         /*!< The AHB clock (HCLK) divider. This clock is derived from the system clock (SYSCLK).
  71.                                        This parameter can be a value of @ref RCC_AHB_Clock_Source */
  72.  
  73.   uint32_t APB1CLKDivider;        /*!< The APB1 clock (PCLK1) divider. This clock is derived from the AHB clock (HCLK).
  74.                                        This parameter can be a value of @ref RCC_APB1_APB2_Clock_Source */
  75.  
  76.   uint32_t APB2CLKDivider;        /*!< The APB2 clock (PCLK2) divider. This clock is derived from the AHB clock (HCLK).
  77.                                        This parameter can be a value of @ref RCC_APB1_APB2_Clock_Source */
  78. } RCC_ClkInitTypeDef;
  79.  
  80. /**
  81.   * @}
  82.   */
  83.  
  84. /* Exported constants --------------------------------------------------------*/
  85. /** @defgroup RCC_Exported_Constants RCC Exported Constants
  86.   * @{
  87.   */
  88.  
  89. /** @defgroup RCC_PLL_Clock_Source PLL Clock Source
  90.   * @{
  91.   */
  92.  
  93. #define RCC_PLLSOURCE_HSI_DIV2      0x00000000U     /*!< HSI clock divided by 2 selected as PLL entry clock source */
  94. #define RCC_PLLSOURCE_HSE           RCC_CFGR_PLLSRC            /*!< HSE clock selected as PLL entry clock source */
  95.  
  96. /**
  97.   * @}
  98.   */
  99.  
  100. /** @defgroup RCC_Oscillator_Type Oscillator Type
  101.   * @{
  102.   */
  103. #define RCC_OSCILLATORTYPE_NONE            0x00000000U
  104. #define RCC_OSCILLATORTYPE_HSE             0x00000001U
  105. #define RCC_OSCILLATORTYPE_HSI             0x00000002U
  106. #define RCC_OSCILLATORTYPE_LSE             0x00000004U
  107. #define RCC_OSCILLATORTYPE_LSI             0x00000008U
  108. /**
  109.   * @}
  110.   */
  111.  
  112. /** @defgroup RCC_HSE_Config HSE Config
  113.   * @{
  114.   */
  115. #define RCC_HSE_OFF                      0x00000000U                                /*!< HSE clock deactivation */
  116. #define RCC_HSE_ON                       RCC_CR_HSEON                               /*!< HSE clock activation */
  117. #define RCC_HSE_BYPASS                   ((uint32_t)(RCC_CR_HSEBYP | RCC_CR_HSEON)) /*!< External clock source for HSE clock */
  118. /**
  119.   * @}
  120.   */
  121.  
  122. /** @defgroup RCC_LSE_Config LSE Config
  123.   * @{
  124.   */
  125. #define RCC_LSE_OFF                      0x00000000U                                    /*!< LSE clock deactivation */
  126. #define RCC_LSE_ON                       RCC_BDCR_LSEON                                 /*!< LSE clock activation */
  127. #define RCC_LSE_BYPASS                   ((uint32_t)(RCC_BDCR_LSEBYP | RCC_BDCR_LSEON)) /*!< External clock source for LSE clock */
  128.  
  129. /**
  130.   * @}
  131.   */
  132.  
  133. /** @defgroup RCC_HSI_Config HSI Config
  134.   * @{
  135.   */
  136. #define RCC_HSI_OFF                      0x00000000U                      /*!< HSI clock deactivation */
  137. #define RCC_HSI_ON                       RCC_CR_HSION                     /*!< HSI clock activation */
  138.  
  139. #define RCC_HSICALIBRATION_DEFAULT       0x10U         /* Default HSI calibration trimming value */
  140.  
  141. /**
  142.   * @}
  143.   */
  144.  
  145. /** @defgroup RCC_LSI_Config LSI Config
  146.   * @{
  147.   */
  148. #define RCC_LSI_OFF                      0x00000000U              /*!< LSI clock deactivation */
  149. #define RCC_LSI_ON                       RCC_CSR_LSION            /*!< LSI clock activation */
  150.  
  151. /**
  152.   * @}
  153.   */
  154.  
  155. /** @defgroup RCC_PLL_Config PLL Config
  156.   * @{
  157.   */
  158. #define RCC_PLL_NONE                      0x00000000U  /*!< PLL is not configured */
  159. #define RCC_PLL_OFF                       0x00000001U  /*!< PLL deactivation */
  160. #define RCC_PLL_ON                        0x00000002U  /*!< PLL activation */
  161.  
  162. /**
  163.   * @}
  164.   */
  165.  
  166. /** @defgroup RCC_System_Clock_Type System Clock Type
  167.   * @{
  168.   */
  169. #define RCC_CLOCKTYPE_SYSCLK             0x00000001U /*!< SYSCLK to configure */
  170. #define RCC_CLOCKTYPE_HCLK               0x00000002U /*!< HCLK to configure */
  171. #define RCC_CLOCKTYPE_PCLK1              0x00000004U /*!< PCLK1 to configure */
  172. #define RCC_CLOCKTYPE_PCLK2              0x00000008U /*!< PCLK2 to configure */
  173.  
  174. /**
  175.   * @}
  176.   */
  177.  
  178. /** @defgroup RCC_System_Clock_Source System Clock Source
  179.   * @{
  180.   */
  181. #define RCC_SYSCLKSOURCE_HSI             RCC_CFGR_SW_HSI /*!< HSI selected as system clock */
  182. #define RCC_SYSCLKSOURCE_HSE             RCC_CFGR_SW_HSE /*!< HSE selected as system clock */
  183. #define RCC_SYSCLKSOURCE_PLLCLK          RCC_CFGR_SW_PLL /*!< PLL selected as system clock */
  184.  
  185. /**
  186.   * @}
  187.   */
  188.  
  189. /** @defgroup RCC_System_Clock_Source_Status System Clock Source Status
  190.   * @{
  191.   */
  192. #define RCC_SYSCLKSOURCE_STATUS_HSI      RCC_CFGR_SWS_HSI            /*!< HSI used as system clock */
  193. #define RCC_SYSCLKSOURCE_STATUS_HSE      RCC_CFGR_SWS_HSE            /*!< HSE used as system clock */
  194. #define RCC_SYSCLKSOURCE_STATUS_PLLCLK   RCC_CFGR_SWS_PLL            /*!< PLL used as system clock */
  195.  
  196. /**
  197.   * @}
  198.   */
  199.  
  200. /** @defgroup RCC_AHB_Clock_Source AHB Clock Source
  201.   * @{
  202.   */
  203. #define RCC_SYSCLK_DIV1                  RCC_CFGR_HPRE_DIV1   /*!< SYSCLK not divided */
  204. #define RCC_SYSCLK_DIV2                  RCC_CFGR_HPRE_DIV2   /*!< SYSCLK divided by 2 */
  205. #define RCC_SYSCLK_DIV4                  RCC_CFGR_HPRE_DIV4   /*!< SYSCLK divided by 4 */
  206. #define RCC_SYSCLK_DIV8                  RCC_CFGR_HPRE_DIV8   /*!< SYSCLK divided by 8 */
  207. #define RCC_SYSCLK_DIV16                 RCC_CFGR_HPRE_DIV16  /*!< SYSCLK divided by 16 */
  208. #define RCC_SYSCLK_DIV64                 RCC_CFGR_HPRE_DIV64  /*!< SYSCLK divided by 64 */
  209. #define RCC_SYSCLK_DIV128                RCC_CFGR_HPRE_DIV128 /*!< SYSCLK divided by 128 */
  210. #define RCC_SYSCLK_DIV256                RCC_CFGR_HPRE_DIV256 /*!< SYSCLK divided by 256 */
  211. #define RCC_SYSCLK_DIV512                RCC_CFGR_HPRE_DIV512 /*!< SYSCLK divided by 512 */
  212.  
  213. /**
  214.   * @}
  215.   */
  216.  
  217. /** @defgroup RCC_APB1_APB2_Clock_Source APB1 APB2 Clock Source
  218.   * @{
  219.   */
  220. #define RCC_HCLK_DIV1                    RCC_CFGR_PPRE1_DIV1  /*!< HCLK not divided */
  221. #define RCC_HCLK_DIV2                    RCC_CFGR_PPRE1_DIV2  /*!< HCLK divided by 2 */
  222. #define RCC_HCLK_DIV4                    RCC_CFGR_PPRE1_DIV4  /*!< HCLK divided by 4 */
  223. #define RCC_HCLK_DIV8                    RCC_CFGR_PPRE1_DIV8  /*!< HCLK divided by 8 */
  224. #define RCC_HCLK_DIV16                   RCC_CFGR_PPRE1_DIV16 /*!< HCLK divided by 16 */
  225.  
  226. /**
  227.   * @}
  228.   */
  229.  
  230. /** @defgroup RCC_RTC_Clock_Source RTC Clock Source
  231.   * @{
  232.   */
  233. #define RCC_RTCCLKSOURCE_NO_CLK          0x00000000U                 /*!< No clock */
  234. #define RCC_RTCCLKSOURCE_LSE             RCC_BDCR_RTCSEL_LSE                  /*!< LSE oscillator clock used as RTC clock */
  235. #define RCC_RTCCLKSOURCE_LSI             RCC_BDCR_RTCSEL_LSI                  /*!< LSI oscillator clock used as RTC clock */
  236. #define RCC_RTCCLKSOURCE_HSE_DIV128      RCC_BDCR_RTCSEL_HSE                    /*!< HSE oscillator clock divided by 128 used as RTC clock */
  237. /**
  238.   * @}
  239.   */
  240.  
  241.  
  242. /** @defgroup RCC_MCO_Index MCO Index
  243.   * @{
  244.   */
  245. #define RCC_MCO1                         0x00000000U
  246. #define RCC_MCO                          RCC_MCO1               /*!< MCO1 to be compliant with other families with 2 MCOs*/
  247.  
  248. /**
  249.   * @}
  250.   */
  251.  
  252. /** @defgroup RCC_MCOx_Clock_Prescaler MCO Clock Prescaler
  253.   * @{
  254.   */
  255. #define RCC_MCODIV_1                    0x00000000U
  256.  
  257. /**
  258.   * @}
  259.   */
  260.  
  261. /** @defgroup RCC_Interrupt Interrupts
  262.   * @{
  263.   */
  264. #define RCC_IT_LSIRDY                    ((uint8_t)RCC_CIR_LSIRDYF)   /*!< LSI Ready Interrupt flag */
  265. #define RCC_IT_LSERDY                    ((uint8_t)RCC_CIR_LSERDYF)   /*!< LSE Ready Interrupt flag */
  266. #define RCC_IT_HSIRDY                    ((uint8_t)RCC_CIR_HSIRDYF)   /*!< HSI Ready Interrupt flag */
  267. #define RCC_IT_HSERDY                    ((uint8_t)RCC_CIR_HSERDYF)   /*!< HSE Ready Interrupt flag */
  268. #define RCC_IT_PLLRDY                    ((uint8_t)RCC_CIR_PLLRDYF)   /*!< PLL Ready Interrupt flag */
  269. #define RCC_IT_CSS                       ((uint8_t)RCC_CIR_CSSF)      /*!< Clock Security System Interrupt flag */
  270. /**
  271.   * @}
  272.   */
  273.  
  274. /** @defgroup RCC_Flag Flags
  275.   *        Elements values convention: XXXYYYYYb
  276.   *           - YYYYY  : Flag position in the register
  277.   *           - XXX  : Register index
  278.   *                 - 001: CR register
  279.   *                 - 010: BDCR register
  280.   *                 - 011: CSR register
  281.   * @{
  282.   */
  283. /* Flags in the CR register */
  284. #define RCC_FLAG_HSIRDY                  ((uint8_t)((CR_REG_INDEX << 5U) | RCC_CR_HSIRDY_Pos)) /*!< Internal High Speed clock ready flag */
  285. #define RCC_FLAG_HSERDY                  ((uint8_t)((CR_REG_INDEX << 5U) | RCC_CR_HSERDY_Pos)) /*!< External High Speed clock ready flag */
  286. #define RCC_FLAG_PLLRDY                  ((uint8_t)((CR_REG_INDEX << 5U) | RCC_CR_PLLRDY_Pos)) /*!< PLL clock ready flag */
  287.  
  288. /* Flags in the CSR register */
  289. #define RCC_FLAG_LSIRDY                  ((uint8_t)((CSR_REG_INDEX << 5U) | RCC_CSR_LSIRDY_Pos))   /*!< Internal Low Speed oscillator Ready */
  290. #define RCC_FLAG_PINRST                  ((uint8_t)((CSR_REG_INDEX << 5U) | RCC_CSR_PINRSTF_Pos))  /*!< PIN reset flag */
  291. #define RCC_FLAG_PORRST                  ((uint8_t)((CSR_REG_INDEX << 5U) | RCC_CSR_PORRSTF_Pos))  /*!< POR/PDR reset flag */
  292. #define RCC_FLAG_SFTRST                  ((uint8_t)((CSR_REG_INDEX << 5U) | RCC_CSR_SFTRSTF_Pos))  /*!< Software Reset flag */
  293. #define RCC_FLAG_IWDGRST                 ((uint8_t)((CSR_REG_INDEX << 5U) | RCC_CSR_IWDGRSTF_Pos)) /*!< Independent Watchdog reset flag */
  294. #define RCC_FLAG_WWDGRST                 ((uint8_t)((CSR_REG_INDEX << 5U) | RCC_CSR_WWDGRSTF_Pos)) /*!< Window watchdog reset flag */
  295. #define RCC_FLAG_LPWRRST                 ((uint8_t)((CSR_REG_INDEX << 5U) | RCC_CSR_LPWRRSTF_Pos)) /*!< Low-Power reset flag */
  296.  
  297. /* Flags in the BDCR register */
  298. #define RCC_FLAG_LSERDY                  ((uint8_t)((BDCR_REG_INDEX << 5U) | RCC_BDCR_LSERDY_Pos)) /*!< External Low Speed oscillator Ready */
  299.  
  300. /**
  301.   * @}
  302.   */
  303.  
  304. /**
  305.   * @}
  306.   */
  307.  
  308. /* Exported macro ------------------------------------------------------------*/
  309.  
  310. /** @defgroup RCC_Exported_Macros RCC Exported Macros
  311.   * @{
  312.   */
  313.  
  314. /** @defgroup RCC_Peripheral_Clock_Enable_Disable Peripheral Clock Enable Disable
  315.   * @brief  Enable or disable the AHB1 peripheral clock.
  316.   * @note   After reset, the peripheral clock (used for registers read/write access)
  317.   *         is disabled and the application software has to enable this clock before
  318.   *         using it.
  319.   * @{
  320.   */
  321. #define __HAL_RCC_DMA1_CLK_ENABLE()   do { \
  322.                                         __IO uint32_t tmpreg; \
  323.                                         SET_BIT(RCC->AHBENR, RCC_AHBENR_DMA1EN);\
  324.                                         /* Delay after an RCC peripheral clock enabling */\
  325.                                         tmpreg = READ_BIT(RCC->AHBENR, RCC_AHBENR_DMA1EN);\
  326.                                         UNUSED(tmpreg); \
  327.                                       } while(0U)
  328.  
  329. #define __HAL_RCC_SRAM_CLK_ENABLE()   do { \
  330.                                         __IO uint32_t tmpreg; \
  331.                                         SET_BIT(RCC->AHBENR, RCC_AHBENR_SRAMEN);\
  332.                                         /* Delay after an RCC peripheral clock enabling */\
  333.                                         tmpreg = READ_BIT(RCC->AHBENR, RCC_AHBENR_SRAMEN);\
  334.                                         UNUSED(tmpreg); \
  335.                                       } while(0U)
  336.  
  337. #define __HAL_RCC_FLITF_CLK_ENABLE()   do { \
  338.                                         __IO uint32_t tmpreg; \
  339.                                         SET_BIT(RCC->AHBENR, RCC_AHBENR_FLITFEN);\
  340.                                         /* Delay after an RCC peripheral clock enabling */\
  341.                                         tmpreg = READ_BIT(RCC->AHBENR, RCC_AHBENR_FLITFEN);\
  342.                                         UNUSED(tmpreg); \
  343.                                       } while(0U)
  344.  
  345. #define __HAL_RCC_CRC_CLK_ENABLE()   do { \
  346.                                         __IO uint32_t tmpreg; \
  347.                                         SET_BIT(RCC->AHBENR, RCC_AHBENR_CRCEN);\
  348.                                         /* Delay after an RCC peripheral clock enabling */\
  349.                                         tmpreg = READ_BIT(RCC->AHBENR, RCC_AHBENR_CRCEN);\
  350.                                         UNUSED(tmpreg); \
  351.                                       } while(0U)
  352.  
  353. #define __HAL_RCC_DMA1_CLK_DISABLE()      (RCC->AHBENR &= ~(RCC_AHBENR_DMA1EN))
  354. #define __HAL_RCC_SRAM_CLK_DISABLE()      (RCC->AHBENR &= ~(RCC_AHBENR_SRAMEN))
  355. #define __HAL_RCC_FLITF_CLK_DISABLE()     (RCC->AHBENR &= ~(RCC_AHBENR_FLITFEN))
  356. #define __HAL_RCC_CRC_CLK_DISABLE()       (RCC->AHBENR &= ~(RCC_AHBENR_CRCEN))
  357.  
  358. /**
  359.   * @}
  360.   */
  361.  
  362. /** @defgroup RCC_AHB_Peripheral_Clock_Enable_Disable_Status AHB Peripheral Clock Enable Disable Status
  363.   * @brief  Get the enable or disable status of the AHB peripheral clock.
  364.   * @note   After reset, the peripheral clock (used for registers read/write access)
  365.   *         is disabled and the application software has to enable this clock before
  366.   *         using it.
  367.   * @{
  368.   */
  369.  
  370. #define __HAL_RCC_DMA1_IS_CLK_ENABLED()       ((RCC->AHBENR & (RCC_AHBENR_DMA1EN)) != RESET)
  371. #define __HAL_RCC_DMA1_IS_CLK_DISABLED()      ((RCC->AHBENR & (RCC_AHBENR_DMA1EN)) == RESET)
  372. #define __HAL_RCC_SRAM_IS_CLK_ENABLED()       ((RCC->AHBENR & (RCC_AHBENR_SRAMEN)) != RESET)
  373. #define __HAL_RCC_SRAM_IS_CLK_DISABLED()      ((RCC->AHBENR & (RCC_AHBENR_SRAMEN)) == RESET)
  374. #define __HAL_RCC_FLITF_IS_CLK_ENABLED()       ((RCC->AHBENR & (RCC_AHBENR_FLITFEN)) != RESET)
  375. #define __HAL_RCC_FLITF_IS_CLK_DISABLED()      ((RCC->AHBENR & (RCC_AHBENR_FLITFEN)) == RESET)
  376. #define __HAL_RCC_CRC_IS_CLK_ENABLED()       ((RCC->AHBENR & (RCC_AHBENR_CRCEN)) != RESET)
  377. #define __HAL_RCC_CRC_IS_CLK_DISABLED()      ((RCC->AHBENR & (RCC_AHBENR_CRCEN)) == RESET)
  378.  
  379. /**
  380.   * @}
  381.   */
  382.  
  383. /** @defgroup RCC_APB1_Clock_Enable_Disable APB1 Clock Enable Disable
  384.   * @brief  Enable or disable the Low Speed APB (APB1) peripheral clock.
  385.   * @note   After reset, the peripheral clock (used for registers read/write access)
  386.   *         is disabled and the application software has to enable this clock before
  387.   *         using it.
  388.   * @{
  389.   */
  390. #define __HAL_RCC_TIM2_CLK_ENABLE()   do { \
  391.                                         __IO uint32_t tmpreg; \
  392.                                         SET_BIT(RCC->APB1ENR, RCC_APB1ENR_TIM2EN);\
  393.                                         /* Delay after an RCC peripheral clock enabling */\
  394.                                         tmpreg = READ_BIT(RCC->APB1ENR, RCC_APB1ENR_TIM2EN);\
  395.                                         UNUSED(tmpreg); \
  396.                                       } while(0U)
  397.  
  398. #define __HAL_RCC_TIM3_CLK_ENABLE()   do { \
  399.                                         __IO uint32_t tmpreg; \
  400.                                         SET_BIT(RCC->APB1ENR, RCC_APB1ENR_TIM3EN);\
  401.                                         /* Delay after an RCC peripheral clock enabling */\
  402.                                         tmpreg = READ_BIT(RCC->APB1ENR, RCC_APB1ENR_TIM3EN);\
  403.                                         UNUSED(tmpreg); \
  404.                                       } while(0U)
  405.  
  406. #define __HAL_RCC_WWDG_CLK_ENABLE()   do { \
  407.                                         __IO uint32_t tmpreg; \
  408.                                         SET_BIT(RCC->APB1ENR, RCC_APB1ENR_WWDGEN);\
  409.                                         /* Delay after an RCC peripheral clock enabling */\
  410.                                         tmpreg = READ_BIT(RCC->APB1ENR, RCC_APB1ENR_WWDGEN);\
  411.                                         UNUSED(tmpreg); \
  412.                                       } while(0U)
  413.  
  414. #define __HAL_RCC_USART2_CLK_ENABLE()   do { \
  415.                                         __IO uint32_t tmpreg; \
  416.                                         SET_BIT(RCC->APB1ENR, RCC_APB1ENR_USART2EN);\
  417.                                         /* Delay after an RCC peripheral clock enabling */\
  418.                                         tmpreg = READ_BIT(RCC->APB1ENR, RCC_APB1ENR_USART2EN);\
  419.                                         UNUSED(tmpreg); \
  420.                                       } while(0U)
  421.  
  422. #define __HAL_RCC_I2C1_CLK_ENABLE()   do { \
  423.                                         __IO uint32_t tmpreg; \
  424.                                         SET_BIT(RCC->APB1ENR, RCC_APB1ENR_I2C1EN);\
  425.                                         /* Delay after an RCC peripheral clock enabling */\
  426.                                         tmpreg = READ_BIT(RCC->APB1ENR, RCC_APB1ENR_I2C1EN);\
  427.                                         UNUSED(tmpreg); \
  428.                                       } while(0U)
  429.  
  430. #define __HAL_RCC_BKP_CLK_ENABLE()   do { \
  431.                                         __IO uint32_t tmpreg; \
  432.                                         SET_BIT(RCC->APB1ENR, RCC_APB1ENR_BKPEN);\
  433.                                         /* Delay after an RCC peripheral clock enabling */\
  434.                                         tmpreg = READ_BIT(RCC->APB1ENR, RCC_APB1ENR_BKPEN);\
  435.                                         UNUSED(tmpreg); \
  436.                                       } while(0U)
  437.  
  438. #define __HAL_RCC_PWR_CLK_ENABLE()   do { \
  439.                                         __IO uint32_t tmpreg; \
  440.                                         SET_BIT(RCC->APB1ENR, RCC_APB1ENR_PWREN);\
  441.                                         /* Delay after an RCC peripheral clock enabling */\
  442.                                         tmpreg = READ_BIT(RCC->APB1ENR, RCC_APB1ENR_PWREN);\
  443.                                         UNUSED(tmpreg); \
  444.                                       } while(0U)
  445.  
  446. #define __HAL_RCC_TIM2_CLK_DISABLE()      (RCC->APB1ENR &= ~(RCC_APB1ENR_TIM2EN))
  447. #define __HAL_RCC_TIM3_CLK_DISABLE()      (RCC->APB1ENR &= ~(RCC_APB1ENR_TIM3EN))
  448. #define __HAL_RCC_WWDG_CLK_DISABLE()      (RCC->APB1ENR &= ~(RCC_APB1ENR_WWDGEN))
  449. #define __HAL_RCC_USART2_CLK_DISABLE()    (RCC->APB1ENR &= ~(RCC_APB1ENR_USART2EN))
  450. #define __HAL_RCC_I2C1_CLK_DISABLE()      (RCC->APB1ENR &= ~(RCC_APB1ENR_I2C1EN))
  451.  
  452. #define __HAL_RCC_BKP_CLK_DISABLE()       (RCC->APB1ENR &= ~(RCC_APB1ENR_BKPEN))
  453. #define __HAL_RCC_PWR_CLK_DISABLE()       (RCC->APB1ENR &= ~(RCC_APB1ENR_PWREN))
  454.  
  455. /**
  456.   * @}
  457.   */
  458.  
  459. /** @defgroup RCC_APB1_Peripheral_Clock_Enable_Disable_Status APB1 Peripheral Clock Enable Disable Status
  460.   * @brief  Get the enable or disable status of the APB1 peripheral clock.
  461.   * @note   After reset, the peripheral clock (used for registers read/write access)
  462.   *         is disabled and the application software has to enable this clock before
  463.   *         using it.
  464.   * @{
  465.   */
  466.  
  467. #define __HAL_RCC_TIM2_IS_CLK_ENABLED()       ((RCC->APB1ENR & (RCC_APB1ENR_TIM2EN)) != RESET)
  468. #define __HAL_RCC_TIM2_IS_CLK_DISABLED()      ((RCC->APB1ENR & (RCC_APB1ENR_TIM2EN)) == RESET)
  469. #define __HAL_RCC_TIM3_IS_CLK_ENABLED()       ((RCC->APB1ENR & (RCC_APB1ENR_TIM3EN)) != RESET)
  470. #define __HAL_RCC_TIM3_IS_CLK_DISABLED()      ((RCC->APB1ENR & (RCC_APB1ENR_TIM3EN)) == RESET)
  471. #define __HAL_RCC_WWDG_IS_CLK_ENABLED()       ((RCC->APB1ENR & (RCC_APB1ENR_WWDGEN)) != RESET)
  472. #define __HAL_RCC_WWDG_IS_CLK_DISABLED()      ((RCC->APB1ENR & (RCC_APB1ENR_WWDGEN)) == RESET)
  473. #define __HAL_RCC_USART2_IS_CLK_ENABLED()     ((RCC->APB1ENR & (RCC_APB1ENR_USART2EN)) != RESET)
  474. #define __HAL_RCC_USART2_IS_CLK_DISABLED()    ((RCC->APB1ENR & (RCC_APB1ENR_USART2EN)) == RESET)
  475. #define __HAL_RCC_I2C1_IS_CLK_ENABLED()       ((RCC->APB1ENR & (RCC_APB1ENR_I2C1EN)) != RESET)
  476. #define __HAL_RCC_I2C1_IS_CLK_DISABLED()      ((RCC->APB1ENR & (RCC_APB1ENR_I2C1EN)) == RESET)
  477. #define __HAL_RCC_BKP_IS_CLK_ENABLED()        ((RCC->APB1ENR & (RCC_APB1ENR_BKPEN)) != RESET)
  478. #define __HAL_RCC_BKP_IS_CLK_DISABLED()       ((RCC->APB1ENR & (RCC_APB1ENR_BKPEN)) == RESET)
  479. #define __HAL_RCC_PWR_IS_CLK_ENABLED()        ((RCC->APB1ENR & (RCC_APB1ENR_PWREN)) != RESET)
  480. #define __HAL_RCC_PWR_IS_CLK_DISABLED()       ((RCC->APB1ENR & (RCC_APB1ENR_PWREN)) == RESET)
  481.  
  482. /**
  483.   * @}
  484.   */
  485.  
  486. /** @defgroup RCC_APB2_Clock_Enable_Disable APB2 Clock Enable Disable
  487.   * @brief  Enable or disable the High Speed APB (APB2) peripheral clock.
  488.   * @note   After reset, the peripheral clock (used for registers read/write access)
  489.   *         is disabled and the application software has to enable this clock before
  490.   *         using it.
  491.   * @{
  492.   */
  493. #define __HAL_RCC_AFIO_CLK_ENABLE()   do { \
  494.                                         __IO uint32_t tmpreg; \
  495.                                         SET_BIT(RCC->APB2ENR, RCC_APB2ENR_AFIOEN);\
  496.                                         /* Delay after an RCC peripheral clock enabling */\
  497.                                         tmpreg = READ_BIT(RCC->APB2ENR, RCC_APB2ENR_AFIOEN);\
  498.                                         UNUSED(tmpreg); \
  499.                                       } while(0U)
  500.  
  501. #define __HAL_RCC_GPIOA_CLK_ENABLE()   do { \
  502.                                         __IO uint32_t tmpreg; \
  503.                                         SET_BIT(RCC->APB2ENR, RCC_APB2ENR_IOPAEN);\
  504.                                         /* Delay after an RCC peripheral clock enabling */\
  505.                                         tmpreg = READ_BIT(RCC->APB2ENR, RCC_APB2ENR_IOPAEN);\
  506.                                         UNUSED(tmpreg); \
  507.                                       } while(0U)
  508.  
  509. #define __HAL_RCC_GPIOB_CLK_ENABLE()   do { \
  510.                                         __IO uint32_t tmpreg; \
  511.                                         SET_BIT(RCC->APB2ENR, RCC_APB2ENR_IOPBEN);\
  512.                                         /* Delay after an RCC peripheral clock enabling */\
  513.                                         tmpreg = READ_BIT(RCC->APB2ENR, RCC_APB2ENR_IOPBEN);\
  514.                                         UNUSED(tmpreg); \
  515.                                       } while(0U)
  516.  
  517. #define __HAL_RCC_GPIOC_CLK_ENABLE()   do { \
  518.                                         __IO uint32_t tmpreg; \
  519.                                         SET_BIT(RCC->APB2ENR, RCC_APB2ENR_IOPCEN);\
  520.                                         /* Delay after an RCC peripheral clock enabling */\
  521.                                         tmpreg = READ_BIT(RCC->APB2ENR, RCC_APB2ENR_IOPCEN);\
  522.                                         UNUSED(tmpreg); \
  523.                                       } while(0U)
  524.  
  525. #define __HAL_RCC_GPIOD_CLK_ENABLE()   do { \
  526.                                         __IO uint32_t tmpreg; \
  527.                                         SET_BIT(RCC->APB2ENR, RCC_APB2ENR_IOPDEN);\
  528.                                         /* Delay after an RCC peripheral clock enabling */\
  529.                                         tmpreg = READ_BIT(RCC->APB2ENR, RCC_APB2ENR_IOPDEN);\
  530.                                         UNUSED(tmpreg); \
  531.                                       } while(0U)
  532.  
  533. #define __HAL_RCC_ADC1_CLK_ENABLE()   do { \
  534.                                         __IO uint32_t tmpreg; \
  535.                                         SET_BIT(RCC->APB2ENR, RCC_APB2ENR_ADC1EN);\
  536.                                         /* Delay after an RCC peripheral clock enabling */\
  537.                                         tmpreg = READ_BIT(RCC->APB2ENR, RCC_APB2ENR_ADC1EN);\
  538.                                         UNUSED(tmpreg); \
  539.                                       } while(0U)
  540.  
  541. #define __HAL_RCC_TIM1_CLK_ENABLE()   do { \
  542.                                         __IO uint32_t tmpreg; \
  543.                                         SET_BIT(RCC->APB2ENR, RCC_APB2ENR_TIM1EN);\
  544.                                         /* Delay after an RCC peripheral clock enabling */\
  545.                                         tmpreg = READ_BIT(RCC->APB2ENR, RCC_APB2ENR_TIM1EN);\
  546.                                         UNUSED(tmpreg); \
  547.                                       } while(0U)
  548.  
  549. #define __HAL_RCC_SPI1_CLK_ENABLE()   do { \
  550.                                         __IO uint32_t tmpreg; \
  551.                                         SET_BIT(RCC->APB2ENR, RCC_APB2ENR_SPI1EN);\
  552.                                         /* Delay after an RCC peripheral clock enabling */\
  553.                                         tmpreg = READ_BIT(RCC->APB2ENR, RCC_APB2ENR_SPI1EN);\
  554.                                         UNUSED(tmpreg); \
  555.                                       } while(0U)
  556.  
  557. #define __HAL_RCC_USART1_CLK_ENABLE()   do { \
  558.                                         __IO uint32_t tmpreg; \
  559.                                         SET_BIT(RCC->APB2ENR, RCC_APB2ENR_USART1EN);\
  560.                                         /* Delay after an RCC peripheral clock enabling */\
  561.                                         tmpreg = READ_BIT(RCC->APB2ENR, RCC_APB2ENR_USART1EN);\
  562.                                         UNUSED(tmpreg); \
  563.                                       } while(0U)
  564.  
  565. #define __HAL_RCC_AFIO_CLK_DISABLE()      (RCC->APB2ENR &= ~(RCC_APB2ENR_AFIOEN))
  566. #define __HAL_RCC_GPIOA_CLK_DISABLE()     (RCC->APB2ENR &= ~(RCC_APB2ENR_IOPAEN))
  567. #define __HAL_RCC_GPIOB_CLK_DISABLE()     (RCC->APB2ENR &= ~(RCC_APB2ENR_IOPBEN))
  568. #define __HAL_RCC_GPIOC_CLK_DISABLE()     (RCC->APB2ENR &= ~(RCC_APB2ENR_IOPCEN))
  569. #define __HAL_RCC_GPIOD_CLK_DISABLE()     (RCC->APB2ENR &= ~(RCC_APB2ENR_IOPDEN))
  570. #define __HAL_RCC_ADC1_CLK_DISABLE()      (RCC->APB2ENR &= ~(RCC_APB2ENR_ADC1EN))
  571.  
  572. #define __HAL_RCC_TIM1_CLK_DISABLE()      (RCC->APB2ENR &= ~(RCC_APB2ENR_TIM1EN))
  573. #define __HAL_RCC_SPI1_CLK_DISABLE()      (RCC->APB2ENR &= ~(RCC_APB2ENR_SPI1EN))
  574. #define __HAL_RCC_USART1_CLK_DISABLE()    (RCC->APB2ENR &= ~(RCC_APB2ENR_USART1EN))
  575.  
  576. /**
  577.   * @}
  578.   */
  579.  
  580. /** @defgroup RCC_APB2_Peripheral_Clock_Enable_Disable_Status APB2 Peripheral Clock Enable Disable Status
  581.   * @brief  Get the enable or disable status of the APB2 peripheral clock.
  582.   * @note   After reset, the peripheral clock (used for registers read/write access)
  583.   *         is disabled and the application software has to enable this clock before
  584.   *         using it.
  585.   * @{
  586.   */
  587.  
  588. #define __HAL_RCC_AFIO_IS_CLK_ENABLED()       ((RCC->APB2ENR & (RCC_APB2ENR_AFIOEN)) != RESET)
  589. #define __HAL_RCC_AFIO_IS_CLK_DISABLED()      ((RCC->APB2ENR & (RCC_APB2ENR_AFIOEN)) == RESET)
  590. #define __HAL_RCC_GPIOA_IS_CLK_ENABLED()      ((RCC->APB2ENR & (RCC_APB2ENR_IOPAEN)) != RESET)
  591. #define __HAL_RCC_GPIOA_IS_CLK_DISABLED()     ((RCC->APB2ENR & (RCC_APB2ENR_IOPAEN)) == RESET)
  592. #define __HAL_RCC_GPIOB_IS_CLK_ENABLED()      ((RCC->APB2ENR & (RCC_APB2ENR_IOPBEN)) != RESET)
  593. #define __HAL_RCC_GPIOB_IS_CLK_DISABLED()     ((RCC->APB2ENR & (RCC_APB2ENR_IOPBEN)) == RESET)
  594. #define __HAL_RCC_GPIOC_IS_CLK_ENABLED()      ((RCC->APB2ENR & (RCC_APB2ENR_IOPCEN)) != RESET)
  595. #define __HAL_RCC_GPIOC_IS_CLK_DISABLED()     ((RCC->APB2ENR & (RCC_APB2ENR_IOPCEN)) == RESET)
  596. #define __HAL_RCC_GPIOD_IS_CLK_ENABLED()      ((RCC->APB2ENR & (RCC_APB2ENR_IOPDEN)) != RESET)
  597. #define __HAL_RCC_GPIOD_IS_CLK_DISABLED()     ((RCC->APB2ENR & (RCC_APB2ENR_IOPDEN)) == RESET)
  598. #define __HAL_RCC_ADC1_IS_CLK_ENABLED()       ((RCC->APB2ENR & (RCC_APB2ENR_ADC1EN)) != RESET)
  599. #define __HAL_RCC_ADC1_IS_CLK_DISABLED()      ((RCC->APB2ENR & (RCC_APB2ENR_ADC1EN)) == RESET)
  600. #define __HAL_RCC_TIM1_IS_CLK_ENABLED()       ((RCC->APB2ENR & (RCC_APB2ENR_TIM1EN)) != RESET)
  601. #define __HAL_RCC_TIM1_IS_CLK_DISABLED()      ((RCC->APB2ENR & (RCC_APB2ENR_TIM1EN)) == RESET)
  602. #define __HAL_RCC_SPI1_IS_CLK_ENABLED()       ((RCC->APB2ENR & (RCC_APB2ENR_SPI1EN)) != RESET)
  603. #define __HAL_RCC_SPI1_IS_CLK_DISABLED()      ((RCC->APB2ENR & (RCC_APB2ENR_SPI1EN)) == RESET)
  604. #define __HAL_RCC_USART1_IS_CLK_ENABLED()     ((RCC->APB2ENR & (RCC_APB2ENR_USART1EN)) != RESET)
  605. #define __HAL_RCC_USART1_IS_CLK_DISABLED()    ((RCC->APB2ENR & (RCC_APB2ENR_USART1EN)) == RESET)
  606.  
  607. /**
  608.   * @}
  609.   */
  610.  
  611. /** @defgroup RCC_APB1_Force_Release_Reset APB1 Force Release Reset
  612.   * @brief  Force or release APB1 peripheral reset.
  613.   * @{
  614.   */
  615. #define __HAL_RCC_APB1_FORCE_RESET()       (RCC->APB1RSTR = 0xFFFFFFFFU)
  616. #define __HAL_RCC_TIM2_FORCE_RESET()       (RCC->APB1RSTR |= (RCC_APB1RSTR_TIM2RST))
  617. #define __HAL_RCC_TIM3_FORCE_RESET()       (RCC->APB1RSTR |= (RCC_APB1RSTR_TIM3RST))
  618. #define __HAL_RCC_WWDG_FORCE_RESET()       (RCC->APB1RSTR |= (RCC_APB1RSTR_WWDGRST))
  619. #define __HAL_RCC_USART2_FORCE_RESET()     (RCC->APB1RSTR |= (RCC_APB1RSTR_USART2RST))
  620. #define __HAL_RCC_I2C1_FORCE_RESET()       (RCC->APB1RSTR |= (RCC_APB1RSTR_I2C1RST))
  621.  
  622. #define __HAL_RCC_BKP_FORCE_RESET()        (RCC->APB1RSTR |= (RCC_APB1RSTR_BKPRST))
  623. #define __HAL_RCC_PWR_FORCE_RESET()        (RCC->APB1RSTR |= (RCC_APB1RSTR_PWRRST))
  624.  
  625. #define __HAL_RCC_APB1_RELEASE_RESET()      (RCC->APB1RSTR = 0x00)
  626. #define __HAL_RCC_TIM2_RELEASE_RESET()       (RCC->APB1RSTR &= ~(RCC_APB1RSTR_TIM2RST))
  627. #define __HAL_RCC_TIM3_RELEASE_RESET()       (RCC->APB1RSTR &= ~(RCC_APB1RSTR_TIM3RST))
  628. #define __HAL_RCC_WWDG_RELEASE_RESET()       (RCC->APB1RSTR &= ~(RCC_APB1RSTR_WWDGRST))
  629. #define __HAL_RCC_USART2_RELEASE_RESET()     (RCC->APB1RSTR &= ~(RCC_APB1RSTR_USART2RST))
  630. #define __HAL_RCC_I2C1_RELEASE_RESET()       (RCC->APB1RSTR &= ~(RCC_APB1RSTR_I2C1RST))
  631.  
  632. #define __HAL_RCC_BKP_RELEASE_RESET()        (RCC->APB1RSTR &= ~(RCC_APB1RSTR_BKPRST))
  633. #define __HAL_RCC_PWR_RELEASE_RESET()        (RCC->APB1RSTR &= ~(RCC_APB1RSTR_PWRRST))
  634.  
  635. /**
  636.   * @}
  637.   */
  638.  
  639. /** @defgroup RCC_APB2_Force_Release_Reset APB2 Force Release Reset
  640.   * @brief  Force or release APB2 peripheral reset.
  641.   * @{
  642.   */
  643. #define __HAL_RCC_APB2_FORCE_RESET()       (RCC->APB2RSTR = 0xFFFFFFFFU)
  644. #define __HAL_RCC_AFIO_FORCE_RESET()       (RCC->APB2RSTR |= (RCC_APB2RSTR_AFIORST))
  645. #define __HAL_RCC_GPIOA_FORCE_RESET()      (RCC->APB2RSTR |= (RCC_APB2RSTR_IOPARST))
  646. #define __HAL_RCC_GPIOB_FORCE_RESET()      (RCC->APB2RSTR |= (RCC_APB2RSTR_IOPBRST))
  647. #define __HAL_RCC_GPIOC_FORCE_RESET()      (RCC->APB2RSTR |= (RCC_APB2RSTR_IOPCRST))
  648. #define __HAL_RCC_GPIOD_FORCE_RESET()      (RCC->APB2RSTR |= (RCC_APB2RSTR_IOPDRST))
  649. #define __HAL_RCC_ADC1_FORCE_RESET()       (RCC->APB2RSTR |= (RCC_APB2RSTR_ADC1RST))
  650.  
  651. #define __HAL_RCC_TIM1_FORCE_RESET()       (RCC->APB2RSTR |= (RCC_APB2RSTR_TIM1RST))
  652. #define __HAL_RCC_SPI1_FORCE_RESET()       (RCC->APB2RSTR |= (RCC_APB2RSTR_SPI1RST))
  653. #define __HAL_RCC_USART1_FORCE_RESET()     (RCC->APB2RSTR |= (RCC_APB2RSTR_USART1RST))
  654.  
  655. #define __HAL_RCC_APB2_RELEASE_RESET()      (RCC->APB2RSTR = 0x00)
  656. #define __HAL_RCC_AFIO_RELEASE_RESET()       (RCC->APB2RSTR &= ~(RCC_APB2RSTR_AFIORST))
  657. #define __HAL_RCC_GPIOA_RELEASE_RESET()      (RCC->APB2RSTR &= ~(RCC_APB2RSTR_IOPARST))
  658. #define __HAL_RCC_GPIOB_RELEASE_RESET()      (RCC->APB2RSTR &= ~(RCC_APB2RSTR_IOPBRST))
  659. #define __HAL_RCC_GPIOC_RELEASE_RESET()      (RCC->APB2RSTR &= ~(RCC_APB2RSTR_IOPCRST))
  660. #define __HAL_RCC_GPIOD_RELEASE_RESET()      (RCC->APB2RSTR &= ~(RCC_APB2RSTR_IOPDRST))
  661. #define __HAL_RCC_ADC1_RELEASE_RESET()       (RCC->APB2RSTR &= ~(RCC_APB2RSTR_ADC1RST))
  662.  
  663. #define __HAL_RCC_TIM1_RELEASE_RESET()       (RCC->APB2RSTR &= ~(RCC_APB2RSTR_TIM1RST))
  664. #define __HAL_RCC_SPI1_RELEASE_RESET()       (RCC->APB2RSTR &= ~(RCC_APB2RSTR_SPI1RST))
  665. #define __HAL_RCC_USART1_RELEASE_RESET()     (RCC->APB2RSTR &= ~(RCC_APB2RSTR_USART1RST))
  666.  
  667. /**
  668.   * @}
  669.   */
  670.  
  671. /** @defgroup RCC_HSI_Configuration HSI Configuration
  672.   * @{
  673.   */
  674.  
  675. /** @brief  Macros to enable or disable the Internal High Speed oscillator (HSI).
  676.   * @note   The HSI is stopped by hardware when entering STOP and STANDBY modes.
  677.   * @note   HSI can not be stopped if it is used as system clock source. In this case,
  678.   *         you have to select another source of the system clock then stop the HSI.
  679.   * @note   After enabling the HSI, the application software should wait on HSIRDY
  680.   *         flag to be set indicating that HSI clock is stable and can be used as
  681.   *         system clock source.
  682.   * @note   When the HSI is stopped, HSIRDY flag goes low after 6 HSI oscillator
  683.   *         clock cycles.
  684.   */
  685. #define __HAL_RCC_HSI_ENABLE()  (*(__IO uint32_t *) RCC_CR_HSION_BB = ENABLE)
  686. #define __HAL_RCC_HSI_DISABLE() (*(__IO uint32_t *) RCC_CR_HSION_BB = DISABLE)
  687.  
  688. /** @brief  Macro to adjust the Internal High Speed oscillator (HSI) calibration value.
  689.   * @note   The calibration is used to compensate for the variations in voltage
  690.   *         and temperature that influence the frequency of the internal HSI RC.
  691.   * @param  _HSICALIBRATIONVALUE_ specifies the calibration trimming value.
  692.   *         (default is RCC_HSICALIBRATION_DEFAULT).
  693.   *         This parameter must be a number between 0 and 0x1F.
  694.   */
  695. #define __HAL_RCC_HSI_CALIBRATIONVALUE_ADJUST(_HSICALIBRATIONVALUE_) \
  696.           (MODIFY_REG(RCC->CR, RCC_CR_HSITRIM, (uint32_t)(_HSICALIBRATIONVALUE_) << RCC_CR_HSITRIM_Pos))
  697.  
  698. /**
  699.   * @}
  700.   */
  701.  
  702. /** @defgroup RCC_LSI_Configuration  LSI Configuration
  703.   * @{
  704.   */
  705.  
  706. /** @brief Macro to enable the Internal Low Speed oscillator (LSI).
  707.   * @note   After enabling the LSI, the application software should wait on
  708.   *         LSIRDY flag to be set indicating that LSI clock is stable and can
  709.   *         be used to clock the IWDG and/or the RTC.
  710.   */
  711. #define __HAL_RCC_LSI_ENABLE()  (*(__IO uint32_t *) RCC_CSR_LSION_BB = ENABLE)
  712.  
  713. /** @brief Macro to disable the Internal Low Speed oscillator (LSI).
  714.   * @note   LSI can not be disabled if the IWDG is running.
  715.   * @note   When the LSI is stopped, LSIRDY flag goes low after 6 LSI oscillator
  716.   *         clock cycles.
  717.   */
  718. #define __HAL_RCC_LSI_DISABLE() (*(__IO uint32_t *) RCC_CSR_LSION_BB = DISABLE)
  719.  
  720. /**
  721.   * @}
  722.   */
  723.  
  724. /** @defgroup RCC_HSE_Configuration HSE Configuration
  725.   * @{
  726.   */
  727.  
  728. /**
  729.   * @brief  Macro to configure the External High Speed oscillator (HSE).
  730.   * @note   Transition HSE Bypass to HSE On and HSE On to HSE Bypass are not
  731.   *         supported by this macro. User should request a transition to HSE Off
  732.   *         first and then HSE On or HSE Bypass.
  733.   * @note   After enabling the HSE (RCC_HSE_ON or RCC_HSE_Bypass), the application
  734.   *         software should wait on HSERDY flag to be set indicating that HSE clock
  735.   *         is stable and can be used to clock the PLL and/or system clock.
  736.   * @note   HSE state can not be changed if it is used directly or through the
  737.   *         PLL as system clock. In this case, you have to select another source
  738.   *         of the system clock then change the HSE state (ex. disable it).
  739.   * @note   The HSE is stopped by hardware when entering STOP and STANDBY modes.
  740.   * @note   This function reset the CSSON bit, so if the clock security system(CSS)
  741.   *         was previously enabled you have to enable it again after calling this
  742.   *         function.
  743.   * @param  __STATE__ specifies the new state of the HSE.
  744.   *          This parameter can be one of the following values:
  745.   *            @arg @ref RCC_HSE_OFF turn OFF the HSE oscillator, HSERDY flag goes low after
  746.   *                              6 HSE oscillator clock cycles.
  747.   *            @arg @ref RCC_HSE_ON turn ON the HSE oscillator
  748.   *            @arg @ref RCC_HSE_BYPASS HSE oscillator bypassed with external clock
  749.   */
  750. #define __HAL_RCC_HSE_CONFIG(__STATE__)                                     \
  751.                     do{                                                     \
  752.                       if ((__STATE__) == RCC_HSE_ON)                        \
  753.                       {                                                     \
  754.                         SET_BIT(RCC->CR, RCC_CR_HSEON);                     \
  755.                       }                                                     \
  756.                       else if ((__STATE__) == RCC_HSE_OFF)                  \
  757.                       {                                                     \
  758.                         CLEAR_BIT(RCC->CR, RCC_CR_HSEON);                   \
  759.                         CLEAR_BIT(RCC->CR, RCC_CR_HSEBYP);                  \
  760.                       }                                                     \
  761.                       else if ((__STATE__) == RCC_HSE_BYPASS)               \
  762.                       {                                                     \
  763.                         SET_BIT(RCC->CR, RCC_CR_HSEBYP);                    \
  764.                         SET_BIT(RCC->CR, RCC_CR_HSEON);                     \
  765.                       }                                                     \
  766.                       else                                                  \
  767.                       {                                                     \
  768.                         CLEAR_BIT(RCC->CR, RCC_CR_HSEON);                   \
  769.                         CLEAR_BIT(RCC->CR, RCC_CR_HSEBYP);                  \
  770.                       }                                                     \
  771.                     }while(0U)
  772.  
  773. /**
  774.   * @}
  775.   */
  776.  
  777. /** @defgroup RCC_LSE_Configuration LSE Configuration
  778.   * @{
  779.   */
  780.  
  781. /**
  782.   * @brief  Macro to configure the External Low Speed oscillator (LSE).
  783.   * @note Transitions LSE Bypass to LSE On and LSE On to LSE Bypass are not supported by this macro.
  784.   * @note   As the LSE is in the Backup domain and write access is denied to
  785.   *         this domain after reset, you have to enable write access using
  786.   *         @ref HAL_PWR_EnableBkUpAccess() function before to configure the LSE
  787.   *         (to be done once after reset).
  788.   * @note   After enabling the LSE (RCC_LSE_ON or RCC_LSE_BYPASS), the application
  789.   *         software should wait on LSERDY flag to be set indicating that LSE clock
  790.   *         is stable and can be used to clock the RTC.
  791.   * @param  __STATE__ specifies the new state of the LSE.
  792.   *         This parameter can be one of the following values:
  793.   *            @arg @ref RCC_LSE_OFF turn OFF the LSE oscillator, LSERDY flag goes low after
  794.   *                              6 LSE oscillator clock cycles.
  795.   *            @arg @ref RCC_LSE_ON turn ON the LSE oscillator.
  796.   *            @arg @ref RCC_LSE_BYPASS LSE oscillator bypassed with external clock.
  797.   */
  798. #define __HAL_RCC_LSE_CONFIG(__STATE__)                                     \
  799.                     do{                                                     \
  800.                       if ((__STATE__) == RCC_LSE_ON)                        \
  801.                       {                                                     \
  802.                         SET_BIT(RCC->BDCR, RCC_BDCR_LSEON);                   \
  803.                       }                                                     \
  804.                       else if ((__STATE__) == RCC_LSE_OFF)                  \
  805.                       {                                                     \
  806.                         CLEAR_BIT(RCC->BDCR, RCC_BDCR_LSEON);                 \
  807.                         CLEAR_BIT(RCC->BDCR, RCC_BDCR_LSEBYP);                \
  808.                       }                                                     \
  809.                       else if ((__STATE__) == RCC_LSE_BYPASS)               \
  810.                       {                                                     \
  811.                         SET_BIT(RCC->BDCR, RCC_BDCR_LSEBYP);                  \
  812.                         SET_BIT(RCC->BDCR, RCC_BDCR_LSEON);                   \
  813.                       }                                                     \
  814.                       else                                                  \
  815.                       {                                                     \
  816.                         CLEAR_BIT(RCC->BDCR, RCC_BDCR_LSEON);                 \
  817.                         CLEAR_BIT(RCC->BDCR, RCC_BDCR_LSEBYP);                \
  818.                       }                                                     \
  819.                     }while(0U)
  820.  
  821. /**
  822.   * @}
  823.   */
  824.  
  825. /** @defgroup RCC_PLL_Configuration PLL Configuration
  826.   * @{
  827.   */
  828.  
  829. /** @brief Macro to enable the main PLL.
  830.   * @note   After enabling the main PLL, the application software should wait on
  831.   *         PLLRDY flag to be set indicating that PLL clock is stable and can
  832.   *         be used as system clock source.
  833.   * @note   The main PLL is disabled by hardware when entering STOP and STANDBY modes.
  834.   */
  835. #define __HAL_RCC_PLL_ENABLE()          (*(__IO uint32_t *) RCC_CR_PLLON_BB = ENABLE)
  836.  
  837. /** @brief Macro to disable the main PLL.
  838.   * @note   The main PLL can not be disabled if it is used as system clock source
  839.   */
  840. #define __HAL_RCC_PLL_DISABLE()         (*(__IO uint32_t *) RCC_CR_PLLON_BB = DISABLE)
  841.  
  842. /** @brief Macro to configure the main PLL clock source and multiplication factors.
  843.   * @note   This function must be used only when the main PLL is disabled.
  844.   *
  845.   * @param  __RCC_PLLSOURCE__ specifies the PLL entry clock source.
  846.   *          This parameter can be one of the following values:
  847.   *            @arg @ref RCC_PLLSOURCE_HSI_DIV2 HSI oscillator clock selected as PLL clock entry
  848.   *            @arg @ref RCC_PLLSOURCE_HSE HSE oscillator clock selected as PLL clock entry
  849.   * @param  __PLLMUL__ specifies the multiplication factor for PLL VCO output clock
  850.   *          This parameter can be one of the following values:
  851.   *             @arg @ref RCC_PLL_MUL4   PLLVCO = PLL clock entry x 4
  852.   *             @arg @ref RCC_PLL_MUL6   PLLVCO = PLL clock entry x 6
  853.   @if STM32F105xC
  854.   *             @arg @ref RCC_PLL_MUL6_5 PLLVCO = PLL clock entry x 6.5
  855.   @elseif STM32F107xC
  856.   *             @arg @ref RCC_PLL_MUL6_5 PLLVCO = PLL clock entry x 6.5
  857.   @else
  858.   *             @arg @ref RCC_PLL_MUL2   PLLVCO = PLL clock entry x 2
  859.   *             @arg @ref RCC_PLL_MUL3   PLLVCO = PLL clock entry x 3
  860.   *             @arg @ref RCC_PLL_MUL10  PLLVCO = PLL clock entry x 10
  861.   *             @arg @ref RCC_PLL_MUL11  PLLVCO = PLL clock entry x 11
  862.   *             @arg @ref RCC_PLL_MUL12  PLLVCO = PLL clock entry x 12
  863.   *             @arg @ref RCC_PLL_MUL13  PLLVCO = PLL clock entry x 13
  864.   *             @arg @ref RCC_PLL_MUL14  PLLVCO = PLL clock entry x 14
  865.   *             @arg @ref RCC_PLL_MUL15  PLLVCO = PLL clock entry x 15
  866.   *             @arg @ref RCC_PLL_MUL16  PLLVCO = PLL clock entry x 16
  867.   @endif
  868.   *             @arg @ref RCC_PLL_MUL8   PLLVCO = PLL clock entry x 8
  869.   *             @arg @ref RCC_PLL_MUL9   PLLVCO = PLL clock entry x 9
  870.   *
  871.   */
  872. #define __HAL_RCC_PLL_CONFIG(__RCC_PLLSOURCE__, __PLLMUL__)\
  873.           MODIFY_REG(RCC->CFGR, (RCC_CFGR_PLLSRC | RCC_CFGR_PLLMULL),((__RCC_PLLSOURCE__) | (__PLLMUL__) ))
  874.  
  875. /** @brief  Get oscillator clock selected as PLL input clock
  876.   * @retval The clock source used for PLL entry. The returned value can be one
  877.   *         of the following:
  878.   *             @arg @ref RCC_PLLSOURCE_HSI_DIV2 HSI oscillator clock selected as PLL input clock
  879.   *             @arg @ref RCC_PLLSOURCE_HSE HSE oscillator clock selected as PLL input clock
  880.   */
  881. #define __HAL_RCC_GET_PLL_OSCSOURCE() ((uint32_t)(READ_BIT(RCC->CFGR, RCC_CFGR_PLLSRC)))
  882.  
  883. /**
  884.   * @}
  885.   */
  886.  
  887. /** @defgroup RCC_Get_Clock_source Get Clock source
  888.   * @{
  889.   */
  890.  
  891. /**
  892.   * @brief  Macro to configure the system clock source.
  893.   * @param  __SYSCLKSOURCE__ specifies the system clock source.
  894.   *          This parameter can be one of the following values:
  895.   *              @arg @ref RCC_SYSCLKSOURCE_HSI HSI oscillator is used as system clock source.
  896.   *              @arg @ref RCC_SYSCLKSOURCE_HSE HSE oscillator is used as system clock source.
  897.   *              @arg @ref RCC_SYSCLKSOURCE_PLLCLK PLL output is used as system clock source.
  898.   */
  899. #define __HAL_RCC_SYSCLK_CONFIG(__SYSCLKSOURCE__) \
  900.                   MODIFY_REG(RCC->CFGR, RCC_CFGR_SW, (__SYSCLKSOURCE__))
  901.  
  902. /** @brief  Macro to get the clock source used as system clock.
  903.   * @retval The clock source used as system clock. The returned value can be one
  904.   *         of the following:
  905.   *             @arg @ref RCC_SYSCLKSOURCE_STATUS_HSI HSI used as system clock
  906.   *             @arg @ref RCC_SYSCLKSOURCE_STATUS_HSE HSE used as system clock
  907.   *             @arg @ref RCC_SYSCLKSOURCE_STATUS_PLLCLK PLL used as system clock
  908.   */
  909. #define __HAL_RCC_GET_SYSCLK_SOURCE() ((uint32_t)(READ_BIT(RCC->CFGR,RCC_CFGR_SWS)))
  910.  
  911. /**
  912.   * @}
  913.   */
  914.  
  915. /** @defgroup RCCEx_MCOx_Clock_Config RCC Extended MCOx Clock Config
  916.   * @{
  917.   */
  918.  
  919. #if   defined(RCC_CFGR_MCO_3)
  920. /** @brief  Macro to configure the MCO clock.
  921.   * @param  __MCOCLKSOURCE__ specifies the MCO clock source.
  922.   *         This parameter can be one of the following values:
  923.   *            @arg @ref RCC_MCO1SOURCE_NOCLOCK      No clock selected as MCO clock
  924.   *            @arg @ref RCC_MCO1SOURCE_SYSCLK       System clock (SYSCLK) selected as MCO clock
  925.   *            @arg @ref RCC_MCO1SOURCE_HSI          HSI selected as MCO clock
  926.   *            @arg @ref RCC_MCO1SOURCE_HSE          HSE selected as MCO clock
  927.   *            @arg @ref RCC_MCO1SOURCE_PLLCLK       PLL clock divided by 2 selected as MCO clock
  928.   *            @arg @ref RCC_MCO1SOURCE_PLL2CLK      PLL2 clock selected by 2 selected as MCO clock
  929.   *            @arg @ref RCC_MCO1SOURCE_PLL3CLK_DIV2 PLL3 clock divided by 2 selected as MCO clock
  930.   *            @arg @ref RCC_MCO1SOURCE_EXT_HSE XT1  external 3-25 MHz oscillator clock selected (for Ethernet) as MCO clock
  931.   *            @arg @ref RCC_MCO1SOURCE_PLL3CLK      PLL3 clock selected (for Ethernet) as MCO clock
  932.   * @param  __MCODIV__ specifies the MCO clock prescaler.
  933.   *         This parameter can be one of the following values:
  934.   *            @arg @ref RCC_MCODIV_1 No division applied on MCO clock source
  935.   */
  936. #else
  937. /** @brief  Macro to configure the MCO clock.
  938.   * @param  __MCOCLKSOURCE__ specifies the MCO clock source.
  939.   *         This parameter can be one of the following values:
  940.   *            @arg @ref RCC_MCO1SOURCE_NOCLOCK No clock selected as MCO clock
  941.   *            @arg @ref RCC_MCO1SOURCE_SYSCLK  System clock (SYSCLK) selected as MCO clock
  942.   *            @arg @ref RCC_MCO1SOURCE_HSI HSI selected as MCO clock
  943.   *            @arg @ref RCC_MCO1SOURCE_HSE HSE selected as MCO clock
  944.   *            @arg @ref RCC_MCO1SOURCE_PLLCLK  PLL clock divided by 2 selected as MCO clock
  945.   * @param  __MCODIV__ specifies the MCO clock prescaler.
  946.   *         This parameter can be one of the following values:
  947.   *            @arg @ref RCC_MCODIV_1 No division applied on MCO clock source
  948.   */
  949. #endif
  950.  
  951. #define __HAL_RCC_MCO1_CONFIG(__MCOCLKSOURCE__, __MCODIV__) \
  952.                  MODIFY_REG(RCC->CFGR, RCC_CFGR_MCO, (__MCOCLKSOURCE__))
  953.  
  954.  
  955. /**
  956.   * @}
  957.   */
  958.  
  959. /** @defgroup RCC_RTC_Clock_Configuration RCC RTC Clock Configuration
  960. * @{
  961. */
  962.  
  963. /** @brief Macro to configure the RTC clock (RTCCLK).
  964.   * @note   As the RTC clock configuration bits are in the Backup domain and write
  965.   *         access is denied to this domain after reset, you have to enable write
  966.   *         access using the Power Backup Access macro before to configure
  967.   *         the RTC clock source (to be done once after reset).
  968.   * @note   Once the RTC clock is configured it can't be changed unless the
  969.   *         Backup domain is reset using @ref __HAL_RCC_BACKUPRESET_FORCE() macro, or by
  970.   *         a Power On Reset (POR).
  971.   *
  972.   * @param  __RTC_CLKSOURCE__ specifies the RTC clock source.
  973.   *          This parameter can be one of the following values:
  974.   *             @arg @ref RCC_RTCCLKSOURCE_NO_CLK No clock selected as RTC clock
  975.   *             @arg @ref RCC_RTCCLKSOURCE_LSE LSE selected as RTC clock
  976.   *             @arg @ref RCC_RTCCLKSOURCE_LSI LSI selected as RTC clock
  977.   *             @arg @ref RCC_RTCCLKSOURCE_HSE_DIV128 HSE divided by 128 selected as RTC clock
  978.   * @note   If the LSE or LSI is used as RTC clock source, the RTC continues to
  979.   *         work in STOP and STANDBY modes, and can be used as wakeup source.
  980.   *         However, when the HSE clock is used as RTC clock source, the RTC
  981.   *         cannot be used in STOP and STANDBY modes.
  982.   * @note   The maximum input clock frequency for RTC is 1MHz (when using HSE as
  983.   *         RTC clock source).
  984.   */
  985. #define __HAL_RCC_RTC_CONFIG(__RTC_CLKSOURCE__) MODIFY_REG(RCC->BDCR, RCC_BDCR_RTCSEL, (__RTC_CLKSOURCE__))
  986.  
  987. /** @brief Macro to get the RTC clock source.
  988.   * @retval The clock source can be one of the following values:
  989.   *            @arg @ref RCC_RTCCLKSOURCE_NO_CLK No clock selected as RTC clock
  990.   *            @arg @ref RCC_RTCCLKSOURCE_LSE LSE selected as RTC clock
  991.   *            @arg @ref RCC_RTCCLKSOURCE_LSI LSI selected as RTC clock
  992.   *            @arg @ref RCC_RTCCLKSOURCE_HSE_DIV128 HSE divided by 128 selected as RTC clock
  993.   */
  994. #define __HAL_RCC_GET_RTC_SOURCE() (READ_BIT(RCC->BDCR, RCC_BDCR_RTCSEL))
  995.  
  996. /** @brief Macro to enable the the RTC clock.
  997.   * @note   These macros must be used only after the RTC clock source was selected.
  998.   */
  999. #define __HAL_RCC_RTC_ENABLE()          (*(__IO uint32_t *) RCC_BDCR_RTCEN_BB = ENABLE)
  1000.  
  1001. /** @brief Macro to disable the the RTC clock.
  1002.   * @note  These macros must be used only after the RTC clock source was selected.
  1003.   */
  1004. #define __HAL_RCC_RTC_DISABLE()         (*(__IO uint32_t *) RCC_BDCR_RTCEN_BB = DISABLE)
  1005.  
  1006. /** @brief  Macro to force the Backup domain reset.
  1007.   * @note   This function resets the RTC peripheral (including the backup registers)
  1008.   *         and the RTC clock source selection in RCC_BDCR register.
  1009.   */
  1010. #define __HAL_RCC_BACKUPRESET_FORCE()   (*(__IO uint32_t *) RCC_BDCR_BDRST_BB = ENABLE)
  1011.  
  1012. /** @brief  Macros to release the Backup domain reset.
  1013.   */
  1014. #define __HAL_RCC_BACKUPRESET_RELEASE() (*(__IO uint32_t *) RCC_BDCR_BDRST_BB = DISABLE)
  1015.  
  1016. /**
  1017.   * @}
  1018.   */
  1019.  
  1020. /** @defgroup RCC_Flags_Interrupts_Management Flags Interrupts Management
  1021.   * @brief macros to manage the specified RCC Flags and interrupts.
  1022.   * @{
  1023.   */
  1024.  
  1025. /** @brief Enable RCC interrupt.
  1026.   * @param  __INTERRUPT__ specifies the RCC interrupt sources to be enabled.
  1027.   *          This parameter can be any combination of the following values:
  1028.   *            @arg @ref RCC_IT_LSIRDY LSI ready interrupt
  1029.   *            @arg @ref RCC_IT_LSERDY LSE ready interrupt
  1030.   *            @arg @ref RCC_IT_HSIRDY HSI ready interrupt
  1031.   *            @arg @ref RCC_IT_HSERDY HSE ready interrupt
  1032.   *            @arg @ref RCC_IT_PLLRDY main PLL ready interrupt
  1033.   @if STM32F105xx
  1034.   *            @arg @ref RCC_IT_PLL2RDY Main PLL2 ready interrupt.
  1035.   *            @arg @ref RCC_IT_PLLI2S2RDY Main PLLI2S ready interrupt.
  1036.   @elsif STM32F107xx
  1037.   *            @arg @ref RCC_IT_PLL2RDY Main PLL2 ready interrupt.
  1038.   *            @arg @ref RCC_IT_PLLI2S2RDY Main PLLI2S ready interrupt.
  1039.   @endif
  1040.   */
  1041. #define __HAL_RCC_ENABLE_IT(__INTERRUPT__) (*(__IO uint8_t *) RCC_CIR_BYTE1_ADDRESS |= (__INTERRUPT__))
  1042.  
  1043. /** @brief Disable RCC interrupt.
  1044.   * @param  __INTERRUPT__ specifies the RCC interrupt sources to be disabled.
  1045.   *          This parameter can be any combination of the following values:
  1046.   *            @arg @ref RCC_IT_LSIRDY LSI ready interrupt
  1047.   *            @arg @ref RCC_IT_LSERDY LSE ready interrupt
  1048.   *            @arg @ref RCC_IT_HSIRDY HSI ready interrupt
  1049.   *            @arg @ref RCC_IT_HSERDY HSE ready interrupt
  1050.   *            @arg @ref RCC_IT_PLLRDY main PLL ready interrupt
  1051.   @if STM32F105xx
  1052.   *            @arg @ref RCC_IT_PLL2RDY Main PLL2 ready interrupt.
  1053.   *            @arg @ref RCC_IT_PLLI2S2RDY Main PLLI2S ready interrupt.
  1054.   @elsif STM32F107xx
  1055.   *            @arg @ref RCC_IT_PLL2RDY Main PLL2 ready interrupt.
  1056.   *            @arg @ref RCC_IT_PLLI2S2RDY Main PLLI2S ready interrupt.
  1057.   @endif
  1058.   */
  1059. #define __HAL_RCC_DISABLE_IT(__INTERRUPT__) (*(__IO uint8_t *) RCC_CIR_BYTE1_ADDRESS &= (uint8_t)(~(__INTERRUPT__)))
  1060.  
  1061. /** @brief Clear the RCC's interrupt pending bits.
  1062.   * @param  __INTERRUPT__ specifies the interrupt pending bit to clear.
  1063.   *          This parameter can be any combination of the following values:
  1064.   *            @arg @ref RCC_IT_LSIRDY LSI ready interrupt.
  1065.   *            @arg @ref RCC_IT_LSERDY LSE ready interrupt.
  1066.   *            @arg @ref RCC_IT_HSIRDY HSI ready interrupt.
  1067.   *            @arg @ref RCC_IT_HSERDY HSE ready interrupt.
  1068.   *            @arg @ref RCC_IT_PLLRDY Main PLL ready interrupt.
  1069.   @if STM32F105xx
  1070.   *            @arg @ref RCC_IT_PLL2RDY Main PLL2 ready interrupt.
  1071.   *            @arg @ref RCC_IT_PLLI2S2RDY Main PLLI2S ready interrupt.
  1072.   @elsif STM32F107xx
  1073.   *            @arg @ref RCC_IT_PLL2RDY Main PLL2 ready interrupt.
  1074.   *            @arg @ref RCC_IT_PLLI2S2RDY Main PLLI2S ready interrupt.
  1075.   @endif
  1076.   *            @arg @ref RCC_IT_CSS Clock Security System interrupt
  1077.   */
  1078. #define __HAL_RCC_CLEAR_IT(__INTERRUPT__) (*(__IO uint8_t *) RCC_CIR_BYTE2_ADDRESS = (__INTERRUPT__))
  1079.  
  1080. /** @brief Check the RCC's interrupt has occurred or not.
  1081.   * @param  __INTERRUPT__ specifies the RCC interrupt source to check.
  1082.   *          This parameter can be one of the following values:
  1083.   *            @arg @ref RCC_IT_LSIRDY LSI ready interrupt.
  1084.   *            @arg @ref RCC_IT_LSERDY LSE ready interrupt.
  1085.   *            @arg @ref RCC_IT_HSIRDY HSI ready interrupt.
  1086.   *            @arg @ref RCC_IT_HSERDY HSE ready interrupt.
  1087.   *            @arg @ref RCC_IT_PLLRDY Main PLL ready interrupt.
  1088.   @if STM32F105xx
  1089.   *            @arg @ref RCC_IT_PLL2RDY Main PLL2 ready interrupt.
  1090.   *            @arg @ref RCC_IT_PLLI2S2RDY Main PLLI2S ready interrupt.
  1091.   @elsif STM32F107xx
  1092.   *            @arg @ref RCC_IT_PLL2RDY Main PLL2 ready interrupt.
  1093.   *            @arg @ref RCC_IT_PLLI2S2RDY Main PLLI2S ready interrupt.
  1094.   @endif
  1095.   *            @arg @ref RCC_IT_CSS Clock Security System interrupt
  1096.   * @retval The new state of __INTERRUPT__ (TRUE or FALSE).
  1097.   */
  1098. #define __HAL_RCC_GET_IT(__INTERRUPT__) ((RCC->CIR & (__INTERRUPT__)) == (__INTERRUPT__))
  1099.  
  1100. /** @brief Set RMVF bit to clear the reset flags.
  1101.   *         The reset flags are RCC_FLAG_PINRST, RCC_FLAG_PORRST, RCC_FLAG_SFTRST,
  1102.   *         RCC_FLAG_IWDGRST, RCC_FLAG_WWDGRST, RCC_FLAG_LPWRRST
  1103.   */
  1104. #define __HAL_RCC_CLEAR_RESET_FLAGS() (*(__IO uint32_t *)RCC_CSR_RMVF_BB = ENABLE)
  1105.  
  1106. /** @brief  Check RCC flag is set or not.
  1107.   * @param  __FLAG__ specifies the flag to check.
  1108.   *          This parameter can be one of the following values:
  1109.   *            @arg @ref RCC_FLAG_HSIRDY HSI oscillator clock ready.
  1110.   *            @arg @ref RCC_FLAG_HSERDY HSE oscillator clock ready.
  1111.   *            @arg @ref RCC_FLAG_PLLRDY Main PLL clock ready.
  1112.   @if STM32F105xx
  1113.   *            @arg @ref RCC_FLAG_PLL2RDY Main PLL2 clock ready.
  1114.   *            @arg @ref RCC_FLAG_PLLI2SRDY Main PLLI2S clock ready.
  1115.   @elsif STM32F107xx
  1116.   *            @arg @ref RCC_FLAG_PLL2RDY Main PLL2 clock ready.
  1117.   *            @arg @ref RCC_FLAG_PLLI2SRDY Main PLLI2S clock ready.
  1118.   @endif
  1119.   *            @arg @ref RCC_FLAG_LSERDY LSE oscillator clock ready.
  1120.   *            @arg @ref RCC_FLAG_LSIRDY LSI oscillator clock ready.
  1121.   *            @arg @ref RCC_FLAG_PINRST  Pin reset.
  1122.   *            @arg @ref RCC_FLAG_PORRST  POR/PDR reset.
  1123.   *            @arg @ref RCC_FLAG_SFTRST  Software reset.
  1124.   *            @arg @ref RCC_FLAG_IWDGRST Independent Watchdog reset.
  1125.   *            @arg @ref RCC_FLAG_WWDGRST Window Watchdog reset.
  1126.   *            @arg @ref RCC_FLAG_LPWRRST Low Power reset.
  1127.   * @retval The new state of __FLAG__ (TRUE or FALSE).
  1128.   */
  1129. #define __HAL_RCC_GET_FLAG(__FLAG__) (((((__FLAG__) >> 5U) == CR_REG_INDEX)?   RCC->CR   : \
  1130.                                       ((((__FLAG__) >> 5U) == BDCR_REG_INDEX)? RCC->BDCR : \
  1131.                                                                               RCC->CSR)) & (1U << ((__FLAG__) & RCC_FLAG_MASK)))
  1132.  
  1133. /**
  1134.   * @}
  1135.   */
  1136.  
  1137. /**
  1138.   * @}
  1139.   */
  1140.  
  1141. /* Include RCC HAL Extension module */
  1142. #include "stm32f1xx_hal_rcc_ex.h"
  1143.  
  1144. /* Exported functions --------------------------------------------------------*/
  1145. /** @addtogroup RCC_Exported_Functions
  1146.   * @{
  1147.   */
  1148.  
  1149. /** @addtogroup RCC_Exported_Functions_Group1
  1150.   * @{
  1151.   */
  1152.  
  1153. /* Initialization and de-initialization functions  ******************************/
  1154. HAL_StatusTypeDef HAL_RCC_DeInit(void);
  1155. HAL_StatusTypeDef HAL_RCC_OscConfig(RCC_OscInitTypeDef  *RCC_OscInitStruct);
  1156. HAL_StatusTypeDef HAL_RCC_ClockConfig(RCC_ClkInitTypeDef  *RCC_ClkInitStruct, uint32_t FLatency);
  1157.  
  1158. /**
  1159.   * @}
  1160.   */
  1161.  
  1162. /** @addtogroup RCC_Exported_Functions_Group2
  1163.   * @{
  1164.   */
  1165.  
  1166. /* Peripheral Control functions  ************************************************/
  1167. void              HAL_RCC_MCOConfig(uint32_t RCC_MCOx, uint32_t RCC_MCOSource, uint32_t RCC_MCODiv);
  1168. void              HAL_RCC_EnableCSS(void);
  1169. void              HAL_RCC_DisableCSS(void);
  1170. uint32_t          HAL_RCC_GetSysClockFreq(void);
  1171. uint32_t          HAL_RCC_GetHCLKFreq(void);
  1172. uint32_t          HAL_RCC_GetPCLK1Freq(void);
  1173. uint32_t          HAL_RCC_GetPCLK2Freq(void);
  1174. void              HAL_RCC_GetOscConfig(RCC_OscInitTypeDef  *RCC_OscInitStruct);
  1175. void              HAL_RCC_GetClockConfig(RCC_ClkInitTypeDef  *RCC_ClkInitStruct, uint32_t *pFLatency);
  1176.  
  1177. /* CSS NMI IRQ handler */
  1178. void              HAL_RCC_NMI_IRQHandler(void);
  1179.  
  1180. /* User Callbacks in non blocking mode (IT mode) */
  1181. void              HAL_RCC_CSSCallback(void);
  1182.  
  1183. /**
  1184.   * @}
  1185.   */
  1186.  
  1187. /**
  1188.   * @}
  1189.   */
  1190.  
  1191. /** @addtogroup RCC_Private_Constants
  1192.   * @{
  1193.   */
  1194.  
  1195. /** @defgroup RCC_Timeout RCC Timeout
  1196.   * @{
  1197.   */
  1198.  
  1199. /* Disable Backup domain write protection state change timeout */
  1200. #define RCC_DBP_TIMEOUT_VALUE          100U    /* 100 ms */
  1201. /* LSE state change timeout */
  1202. #define RCC_LSE_TIMEOUT_VALUE          LSE_STARTUP_TIMEOUT
  1203. #define CLOCKSWITCH_TIMEOUT_VALUE      5000    /* 5 s    */
  1204. #define HSE_TIMEOUT_VALUE              HSE_STARTUP_TIMEOUT
  1205. #define HSI_TIMEOUT_VALUE              2U      /* 2 ms (minimum Tick + 1) */
  1206. #define LSI_TIMEOUT_VALUE              2U      /* 2 ms (minimum Tick + 1) */
  1207. #define PLL_TIMEOUT_VALUE              2U      /* 2 ms (minimum Tick + 1) */
  1208.  
  1209. /**
  1210.   * @}
  1211.   */
  1212.  
  1213. /** @defgroup RCC_Register_Offset Register offsets
  1214.   * @{
  1215.   */
  1216. #define RCC_OFFSET                (RCC_BASE - PERIPH_BASE)
  1217. #define RCC_CR_OFFSET             0x00U
  1218. #define RCC_CFGR_OFFSET           0x04U
  1219. #define RCC_CIR_OFFSET            0x08U
  1220. #define RCC_BDCR_OFFSET           0x20U
  1221. #define RCC_CSR_OFFSET            0x24U
  1222.  
  1223. /**
  1224.   * @}
  1225.   */
  1226.  
  1227. /** @defgroup RCC_BitAddress_AliasRegion BitAddress AliasRegion
  1228.   * @brief RCC registers bit address in the alias region
  1229.   * @{
  1230.   */
  1231. #define RCC_CR_OFFSET_BB          (RCC_OFFSET + RCC_CR_OFFSET)
  1232. #define RCC_CFGR_OFFSET_BB        (RCC_OFFSET + RCC_CFGR_OFFSET)
  1233. #define RCC_CIR_OFFSET_BB         (RCC_OFFSET + RCC_CIR_OFFSET)
  1234. #define RCC_BDCR_OFFSET_BB        (RCC_OFFSET + RCC_BDCR_OFFSET)
  1235. #define RCC_CSR_OFFSET_BB         (RCC_OFFSET + RCC_CSR_OFFSET)
  1236.  
  1237. /* --- CR Register ---*/
  1238. /* Alias word address of HSION bit */
  1239. #define RCC_HSION_BIT_NUMBER      RCC_CR_HSION_Pos
  1240. #define RCC_CR_HSION_BB           ((uint32_t)(PERIPH_BB_BASE + (RCC_CR_OFFSET_BB * 32U) + (RCC_HSION_BIT_NUMBER * 4U)))
  1241. /* Alias word address of HSEON bit */
  1242. #define RCC_HSEON_BIT_NUMBER      RCC_CR_HSEON_Pos
  1243. #define RCC_CR_HSEON_BB           ((uint32_t)(PERIPH_BB_BASE + (RCC_CR_OFFSET_BB * 32U) + (RCC_HSEON_BIT_NUMBER * 4U)))
  1244. /* Alias word address of CSSON bit */
  1245. #define RCC_CSSON_BIT_NUMBER      RCC_CR_CSSON_Pos
  1246. #define RCC_CR_CSSON_BB           ((uint32_t)(PERIPH_BB_BASE + (RCC_CR_OFFSET_BB * 32U) + (RCC_CSSON_BIT_NUMBER * 4U)))
  1247. /* Alias word address of PLLON bit */
  1248. #define RCC_PLLON_BIT_NUMBER      RCC_CR_PLLON_Pos
  1249. #define RCC_CR_PLLON_BB           ((uint32_t)(PERIPH_BB_BASE + (RCC_CR_OFFSET_BB * 32U) + (RCC_PLLON_BIT_NUMBER * 4U)))
  1250.  
  1251. /* --- CSR Register ---*/
  1252. /* Alias word address of LSION bit */
  1253. #define RCC_LSION_BIT_NUMBER      RCC_CSR_LSION_Pos
  1254. #define RCC_CSR_LSION_BB          ((uint32_t)(PERIPH_BB_BASE + (RCC_CSR_OFFSET_BB * 32U) + (RCC_LSION_BIT_NUMBER * 4U)))
  1255.  
  1256. /* Alias word address of RMVF bit */
  1257. #define RCC_RMVF_BIT_NUMBER       RCC_CSR_RMVF_Pos
  1258. #define RCC_CSR_RMVF_BB           ((uint32_t)(PERIPH_BB_BASE + (RCC_CSR_OFFSET_BB * 32U) + (RCC_RMVF_BIT_NUMBER * 4U)))
  1259.  
  1260. /* --- BDCR Registers ---*/
  1261. /* Alias word address of LSEON bit */
  1262. #define RCC_LSEON_BIT_NUMBER      RCC_BDCR_LSEON_Pos
  1263. #define RCC_BDCR_LSEON_BB          ((uint32_t)(PERIPH_BB_BASE + (RCC_BDCR_OFFSET_BB * 32U) + (RCC_LSEON_BIT_NUMBER * 4U)))
  1264.  
  1265. /* Alias word address of LSEON bit */
  1266. #define RCC_LSEBYP_BIT_NUMBER     RCC_BDCR_LSEBYP_Pos
  1267. #define RCC_BDCR_LSEBYP_BB         ((uint32_t)(PERIPH_BB_BASE + (RCC_BDCR_OFFSET_BB * 32U) + (RCC_LSEBYP_BIT_NUMBER * 4U)))
  1268.  
  1269. /* Alias word address of RTCEN bit */
  1270. #define RCC_RTCEN_BIT_NUMBER      RCC_BDCR_RTCEN_Pos
  1271. #define RCC_BDCR_RTCEN_BB          ((uint32_t)(PERIPH_BB_BASE + (RCC_BDCR_OFFSET_BB * 32U) + (RCC_RTCEN_BIT_NUMBER * 4U)))
  1272.  
  1273. /* Alias word address of BDRST bit */
  1274. #define RCC_BDRST_BIT_NUMBER      RCC_BDCR_BDRST_Pos
  1275. #define RCC_BDCR_BDRST_BB         ((uint32_t)(PERIPH_BB_BASE + (RCC_BDCR_OFFSET_BB * 32U) + (RCC_BDRST_BIT_NUMBER * 4U)))
  1276.  
  1277. /**
  1278.   * @}
  1279.   */
  1280.  
  1281. /* CR register byte 2 (Bits[23:16]) base address */
  1282. #define RCC_CR_BYTE2_ADDRESS          ((uint32_t)(RCC_BASE + RCC_CR_OFFSET + 0x02U))
  1283.  
  1284. /* CIR register byte 1 (Bits[15:8]) base address */
  1285. #define RCC_CIR_BYTE1_ADDRESS     ((uint32_t)(RCC_BASE + RCC_CIR_OFFSET + 0x01U))
  1286.  
  1287. /* CIR register byte 2 (Bits[23:16]) base address */
  1288. #define RCC_CIR_BYTE2_ADDRESS     ((uint32_t)(RCC_BASE + RCC_CIR_OFFSET + 0x02U))
  1289.  
  1290. /* Defines used for Flags */
  1291. #define CR_REG_INDEX                     ((uint8_t)1)
  1292. #define BDCR_REG_INDEX                   ((uint8_t)2)
  1293. #define CSR_REG_INDEX                    ((uint8_t)3)
  1294.  
  1295. #define RCC_FLAG_MASK                    ((uint8_t)0x1F)
  1296.  
  1297. /**
  1298.   * @}
  1299.   */
  1300.  
  1301. /** @addtogroup RCC_Private_Macros
  1302.   * @{
  1303.   */
  1304. /** @defgroup RCC_Alias_For_Legacy Alias define maintained for legacy
  1305.   * @{
  1306.   */
  1307. #define __HAL_RCC_SYSCFG_CLK_DISABLE    __HAL_RCC_AFIO_CLK_DISABLE
  1308. #define __HAL_RCC_SYSCFG_CLK_ENABLE     __HAL_RCC_AFIO_CLK_ENABLE
  1309. #define __HAL_RCC_SYSCFG_FORCE_RESET    __HAL_RCC_AFIO_FORCE_RESET
  1310. #define __HAL_RCC_SYSCFG_RELEASE_RESET  __HAL_RCC_AFIO_RELEASE_RESET
  1311. /**
  1312.   * @}
  1313.   */
  1314.  
  1315. #define IS_RCC_PLLSOURCE(__SOURCE__) (((__SOURCE__) == RCC_PLLSOURCE_HSI_DIV2) || \
  1316.                                       ((__SOURCE__) == RCC_PLLSOURCE_HSE))
  1317. #define IS_RCC_OSCILLATORTYPE(__OSCILLATOR__) (((__OSCILLATOR__) == RCC_OSCILLATORTYPE_NONE)                           || \
  1318.                                                (((__OSCILLATOR__) & RCC_OSCILLATORTYPE_HSE) == RCC_OSCILLATORTYPE_HSE) || \
  1319.                                                (((__OSCILLATOR__) & RCC_OSCILLATORTYPE_HSI) == RCC_OSCILLATORTYPE_HSI) || \
  1320.                                                (((__OSCILLATOR__) & RCC_OSCILLATORTYPE_LSI) == RCC_OSCILLATORTYPE_LSI) || \
  1321.                                                (((__OSCILLATOR__) & RCC_OSCILLATORTYPE_LSE) == RCC_OSCILLATORTYPE_LSE))
  1322. #define IS_RCC_HSE(__HSE__) (((__HSE__) == RCC_HSE_OFF) || ((__HSE__) == RCC_HSE_ON) || \
  1323.                              ((__HSE__) == RCC_HSE_BYPASS))
  1324. #define IS_RCC_LSE(__LSE__) (((__LSE__) == RCC_LSE_OFF) || ((__LSE__) == RCC_LSE_ON) || \
  1325.                              ((__LSE__) == RCC_LSE_BYPASS))
  1326. #define IS_RCC_HSI(__HSI__) (((__HSI__) == RCC_HSI_OFF) || ((__HSI__) == RCC_HSI_ON))
  1327. #define IS_RCC_CALIBRATION_VALUE(__VALUE__) ((__VALUE__) <= 0x1FU)
  1328. #define IS_RCC_LSI(__LSI__) (((__LSI__) == RCC_LSI_OFF) || ((__LSI__) == RCC_LSI_ON))
  1329. #define IS_RCC_PLL(__PLL__) (((__PLL__) == RCC_PLL_NONE) || ((__PLL__) == RCC_PLL_OFF) || \
  1330.                              ((__PLL__) == RCC_PLL_ON))
  1331.  
  1332. #define IS_RCC_CLOCKTYPE(CLK) ((((CLK) & RCC_CLOCKTYPE_SYSCLK) == RCC_CLOCKTYPE_SYSCLK) || \
  1333.                                (((CLK) & RCC_CLOCKTYPE_HCLK)   == RCC_CLOCKTYPE_HCLK)   || \
  1334.                                (((CLK) & RCC_CLOCKTYPE_PCLK1)  == RCC_CLOCKTYPE_PCLK1)  || \
  1335.                                (((CLK) & RCC_CLOCKTYPE_PCLK2)  == RCC_CLOCKTYPE_PCLK2))
  1336. #define IS_RCC_SYSCLKSOURCE(__SOURCE__) (((__SOURCE__) == RCC_SYSCLKSOURCE_HSI) || \
  1337.                                          ((__SOURCE__) == RCC_SYSCLKSOURCE_HSE) || \
  1338.                                          ((__SOURCE__) == RCC_SYSCLKSOURCE_PLLCLK))
  1339. #define IS_RCC_SYSCLKSOURCE_STATUS(__SOURCE__) (((__SOURCE__) == RCC_SYSCLKSOURCE_STATUS_HSI) || \
  1340.                                                 ((__SOURCE__) == RCC_SYSCLKSOURCE_STATUS_HSE) || \
  1341.                                                 ((__SOURCE__) == RCC_SYSCLKSOURCE_STATUS_PLLCLK))
  1342. #define IS_RCC_HCLK(__HCLK__) (((__HCLK__) == RCC_SYSCLK_DIV1) || ((__HCLK__) == RCC_SYSCLK_DIV2) || \
  1343.                                ((__HCLK__) == RCC_SYSCLK_DIV4) || ((__HCLK__) == RCC_SYSCLK_DIV8) || \
  1344.                                ((__HCLK__) == RCC_SYSCLK_DIV16) || ((__HCLK__) == RCC_SYSCLK_DIV64) || \
  1345.                                ((__HCLK__) == RCC_SYSCLK_DIV128) || ((__HCLK__) == RCC_SYSCLK_DIV256) || \
  1346.                                ((__HCLK__) == RCC_SYSCLK_DIV512))
  1347. #define IS_RCC_PCLK(__PCLK__) (((__PCLK__) == RCC_HCLK_DIV1) || ((__PCLK__) == RCC_HCLK_DIV2) || \
  1348.                                ((__PCLK__) == RCC_HCLK_DIV4) || ((__PCLK__) == RCC_HCLK_DIV8) || \
  1349.                                ((__PCLK__) == RCC_HCLK_DIV16))
  1350. #define IS_RCC_MCO(__MCO__)  ((__MCO__) == RCC_MCO)
  1351. #define IS_RCC_MCODIV(__DIV__) (((__DIV__) == RCC_MCODIV_1))
  1352. #define IS_RCC_RTCCLKSOURCE(__SOURCE__)  (((__SOURCE__) == RCC_RTCCLKSOURCE_NO_CLK) || \
  1353.                                           ((__SOURCE__) == RCC_RTCCLKSOURCE_LSE) || \
  1354.                                           ((__SOURCE__) == RCC_RTCCLKSOURCE_LSI) || \
  1355.                                           ((__SOURCE__) == RCC_RTCCLKSOURCE_HSE_DIV128))
  1356.  
  1357. /**
  1358.   * @}
  1359.   */
  1360.  
  1361. /**
  1362.   * @}
  1363.   */
  1364.  
  1365. /**
  1366.   * @}
  1367.   */
  1368.  
  1369. #ifdef __cplusplus
  1370. }
  1371. #endif
  1372.  
  1373. #endif /* __STM32F1xx_HAL_RCC_H */
  1374.  
  1375.  
  1376.