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Diffstat (limited to 'stm32cubemx/Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_rcc.c')
| -rw-r--r-- | stm32cubemx/Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_rcc.c | 1270 |
1 files changed, 0 insertions, 1270 deletions
diff --git a/stm32cubemx/Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_rcc.c b/stm32cubemx/Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_rcc.c deleted file mode 100644 index e23f65c..0000000 --- a/stm32cubemx/Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_rcc.c +++ /dev/null @@ -1,1270 +0,0 @@ -/** - ****************************************************************************** - * @file stm32f1xx_hal_rcc.c - * @author MCD Application Team - * @version V1.0.4 - * @date 29-April-2016 - * @brief RCC HAL module driver. - * This file provides firmware functions to manage the following - * functionalities of the Reset and Clock Control (RCC) peripheral: - * + Initialization and de-initialization functions - * + Peripheral Control functions - * - @verbatim - ============================================================================== - ##### RCC specific features ##### - ============================================================================== - [..] - After reset the device is running from Internal High Speed oscillator - (HSI 8MHz) with Flash 0 wait state, Flash prefetch buffer is enabled, - and all peripherals are off except internal SRAM, Flash and JTAG. - (+) There is no prescaler on High speed (AHB) and Low speed (APB) buses; - all peripherals mapped on these buses are running at HSI speed. - (+) The clock for all peripherals is switched off, except the SRAM and FLASH. - (+) All GPIOs are in input floating state, except the JTAG pins which - are assigned to be used for debug purpose. - [..] Once the device started from reset, the user application has to: - (+) Configure the clock source to be used to drive the System clock - (if the application needs higher frequency/performance) - (+) Configure the System clock frequency and Flash settings - (+) Configure the AHB and APB buses prescalers - (+) Enable the clock for the peripheral(s) to be used - (+) Configure the clock source(s) for peripherals whose clocks are not - derived from the System clock (I2S, RTC, ADC, USB OTG FS) - - ##### RCC Limitations ##### - ============================================================================== - [..] - A delay between an RCC peripheral clock enable and the effective peripheral - enabling should be taken into account in order to manage the peripheral read/write - from/to registers. - (+) This delay depends on the peripheral mapping. - (++) AHB & APB peripherals, 1 dummy read is necessary - - [..] - Workarounds: - (#) For AHB & APB peripherals, a dummy read to the peripheral register has been - inserted in each __HAL_RCC_PPP_CLK_ENABLE() macro. - - @endverbatim - ****************************************************************************** - * @attention - * - * <h2><center>© COPYRIGHT(c) 2016 STMicroelectronics</center></h2> - * - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. Neither the name of STMicroelectronics nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" - * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE - * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR - * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER - * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, - * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - * - ****************************************************************************** -*/ - -/* Includes ------------------------------------------------------------------*/ -#include "stm32f1xx_hal.h" - -/** @addtogroup STM32F1xx_HAL_Driver - * @{ - */ - -/** @defgroup RCC RCC -* @brief RCC HAL module driver - * @{ - */ - -#ifdef HAL_RCC_MODULE_ENABLED - -/* Private typedef -----------------------------------------------------------*/ -/* Private define ------------------------------------------------------------*/ -/** @defgroup RCC_Private_Constants RCC Private Constants - * @{ - */ -/* Bits position in in the CFGR register */ -#define RCC_CFGR_HPRE_BITNUMBER POSITION_VAL(RCC_CFGR_HPRE) -#define RCC_CFGR_PPRE1_BITNUMBER POSITION_VAL(RCC_CFGR_PPRE1) -#define RCC_CFGR_PPRE2_BITNUMBER POSITION_VAL(RCC_CFGR_PPRE2) -/** - * @} - */ -/* Private macro -------------------------------------------------------------*/ -/** @defgroup RCC_Private_Macros RCC Private Macros - * @{ - */ - -#define MCO1_CLK_ENABLE() __HAL_RCC_GPIOA_CLK_ENABLE() -#define MCO1_GPIO_PORT GPIOA -#define MCO1_PIN GPIO_PIN_8 - -/** - * @} - */ - -/* Private variables ---------------------------------------------------------*/ -/** @defgroup RCC_Private_Variables RCC Private Variables - * @{ - */ -/** - * @} - */ - -/* Private function prototypes -----------------------------------------------*/ -/* Exported functions ---------------------------------------------------------*/ - -/** @defgroup RCC_Exported_Functions RCC Exported Functions - * @{ - */ - -/** @defgroup RCC_Exported_Functions_Group1 Initialization and de-initialization functions - * @brief Initialization and Configuration functions - * - @verbatim - =============================================================================== - ##### Initialization and de-initialization functions ##### - =============================================================================== - [..] - This section provides functions allowing to configure the internal/external oscillators - (HSE, HSI, LSE, LSI, PLL, CSS and MCO) and the System buses clocks (SYSCLK, AHB, APB1 - and APB2). - - [..] Internal/external clock and PLL configuration - (#) HSI (high-speed internal), 8 MHz factory-trimmed RC used directly or through - the PLL as System clock source. - (#) LSI (low-speed internal), ~40 KHz low consumption RC used as IWDG and/or RTC - clock source. - - (#) HSE (high-speed external), 4 to 24 MHz (STM32F100xx) or 4 to 16 MHz (STM32F101x/STM32F102x/STM32F103x) or 3 to 25 MHz (STM32F105x/STM32F107x) crystal oscillator used directly or - through the PLL as System clock source. Can be used also as RTC clock source. - - (#) LSE (low-speed external), 32 KHz oscillator used as RTC clock source. - - (#) PLL (clocked by HSI or HSE), featuring different output clocks: - (++) The first output is used to generate the high speed system clock (up to 72 MHz for STM32F10xxx or up to 24 MHz for STM32F100xx) - (++) The second output is used to generate the clock for the USB OTG FS (48 MHz) - - (#) CSS (Clock security system), once enable using the macro __HAL_RCC_CSS_ENABLE() - and if a HSE clock failure occurs(HSE used directly or through PLL as System - clock source), the System clocks automatically switched to HSI and an interrupt - is generated if enabled. The interrupt is linked to the Cortex-M3 NMI - (Non-Maskable Interrupt) exception vector. - - (#) MCO1 (microcontroller clock output), used to output SYSCLK, HSI, - HSE or PLL clock (divided by 2) on PA8 pin + PLL2CLK, PLL3CLK/2, PLL3CLK and XTI for STM32F105x/STM32F107x - - [..] System, AHB and APB buses clocks configuration - (#) Several clock sources can be used to drive the System clock (SYSCLK): HSI, - HSE and PLL. - The AHB clock (HCLK) is derived from System clock through configurable - prescaler and used to clock the CPU, memory and peripherals mapped - on AHB bus (DMA, GPIO...). APB1 (PCLK1) and APB2 (PCLK2) clocks are derived - from AHB clock through configurable prescalers and used to clock - the peripherals mapped on these buses. You can use - "@ref HAL_RCC_GetSysClockFreq()" function to retrieve the frequencies of these clocks. - - -@- All the peripheral clocks are derived from the System clock (SYSCLK) except: - (+@) RTC: RTC clock can be derived either from the LSI, LSE or HSE clock - divided by 128. - (+@) USB OTG FS and RTC: USB OTG FS require a frequency equal to 48 MHz - to work correctly. This clock is derived of the main PLL through PLL Multiplier. - (+@) I2S interface on STM32F105x/STM32F107x can be derived from PLL3CLK - (+@) IWDG clock which is always the LSI clock. - - (#) For STM32F10xxx, the maximum frequency of the SYSCLK and HCLK/PCLK2 is 72 MHz, PCLK1 36 MHz. - For STM32F100xx, the maximum frequency of the SYSCLK and HCLK/PCLK1/PCLK2 is 24 MHz. - Depending on the SYSCLK frequency, the flash latency should be adapted accordingly. - @endverbatim - * @{ - */ - -/* - Additional consideration on the SYSCLK based on Latency settings: - +-----------------------------------------------+ - | Latency | SYSCLK clock frequency (MHz) | - |---------------|-------------------------------| - |0WS(1CPU cycle)| 0 < SYSCLK <= 24 | - |---------------|-------------------------------| - |1WS(2CPU cycle)| 24 < SYSCLK <= 48 | - |---------------|-------------------------------| - |2WS(3CPU cycle)| 48 < SYSCLK <= 72 | - +-----------------------------------------------+ - */ - -/** - * @brief Resets the RCC clock configuration to the default reset state. - * @note The default reset state of the clock configuration is given below: - * - HSI ON and used as system clock source - * - HSE and PLL OFF - * - AHB, APB1 and APB2 prescaler set to 1. - * - CSS and MCO1 OFF - * - All interrupts disabled - * @note This function does not modify the configuration of the - * - Peripheral clocks - * - LSI, LSE and RTC clocks - * @retval None - */ -void HAL_RCC_DeInit(void) -{ - /* Switch SYSCLK to HSI */ - CLEAR_BIT(RCC->CFGR, RCC_CFGR_SW); - - /* Reset HSEON, CSSON, & PLLON bits */ - CLEAR_BIT(RCC->CR, RCC_CR_HSEON | RCC_CR_CSSON | RCC_CR_PLLON); - - /* Reset HSEBYP bit */ - CLEAR_BIT(RCC->CR, RCC_CR_HSEBYP); - - /* Reset CFGR register */ - CLEAR_REG(RCC->CFGR); - - /* Set HSITRIM bits to the reset value */ - MODIFY_REG(RCC->CR, RCC_CR_HSITRIM, ((uint32_t)0x10 << POSITION_VAL(RCC_CR_HSITRIM))); - -#if (defined(STM32F105xC) || defined(STM32F107xC) || defined (STM32F100xB) || defined (STM32F100xE)) - /* Reset CFGR2 register */ - CLEAR_REG(RCC->CFGR2); - -#endif /* STM32F105xC || STM32F107xC || STM32F100xB || STM32F100xE */ - /* Disable all interrupts */ - CLEAR_REG(RCC->CIR); - - /* Update the SystemCoreClock global variable */ - SystemCoreClock = HSI_VALUE; -} - -/** - * @brief Initializes the RCC Oscillators according to the specified parameters in the - * RCC_OscInitTypeDef. - * @param RCC_OscInitStruct pointer to an RCC_OscInitTypeDef structure that - * contains the configuration information for the RCC Oscillators. - * @note The PLL is not disabled when used as system clock. - * @note The PLL is not disabled when USB OTG FS clock is enabled (specific to devices with USB FS) - * @note Transitions LSE Bypass to LSE On and LSE On to LSE Bypass are not - * supported by this macro. User should request a transition to LSE Off - * first and then LSE On or LSE Bypass. - * @note Transition HSE Bypass to HSE On and HSE On to HSE Bypass are not - * supported by this macro. User should request a transition to HSE Off - * first and then HSE On or HSE Bypass. - * @retval HAL status - */ -HAL_StatusTypeDef HAL_RCC_OscConfig(RCC_OscInitTypeDef *RCC_OscInitStruct) -{ - uint32_t tickstart = 0; - - /* Check the parameters */ - assert_param(RCC_OscInitStruct != NULL); - assert_param(IS_RCC_OSCILLATORTYPE(RCC_OscInitStruct->OscillatorType)); - - /*------------------------------- HSE Configuration ------------------------*/ - if(((RCC_OscInitStruct->OscillatorType) & RCC_OSCILLATORTYPE_HSE) == RCC_OSCILLATORTYPE_HSE) - { - /* Check the parameters */ - assert_param(IS_RCC_HSE(RCC_OscInitStruct->HSEState)); - - /* When the HSE is used as system clock or clock source for PLL in these cases it is not allowed to be disabled */ - if((__HAL_RCC_GET_SYSCLK_SOURCE() == RCC_SYSCLKSOURCE_STATUS_HSE) - || ((__HAL_RCC_GET_SYSCLK_SOURCE() == RCC_SYSCLKSOURCE_STATUS_PLLCLK) && (__HAL_RCC_GET_PLL_OSCSOURCE() == RCC_PLLSOURCE_HSE))) - { - if((__HAL_RCC_GET_FLAG(RCC_FLAG_HSERDY) != RESET) && (RCC_OscInitStruct->HSEState == RCC_HSE_OFF)) - { - return HAL_ERROR; - } - } - else - { - /* Set the new HSE configuration ---------------------------------------*/ - __HAL_RCC_HSE_CONFIG(RCC_OscInitStruct->HSEState); - - - /* Check the HSE State */ - if(RCC_OscInitStruct->HSEState != RCC_HSE_OFF) - { - /* Get Start Tick */ - tickstart = HAL_GetTick(); - - /* Wait till HSE is ready */ - while(__HAL_RCC_GET_FLAG(RCC_FLAG_HSERDY) == RESET) - { - if((HAL_GetTick() - tickstart ) > HSE_TIMEOUT_VALUE) - { - return HAL_TIMEOUT; - } - } - } - else - { - /* Get Start Tick */ - tickstart = HAL_GetTick(); - - /* Wait till HSE is disabled */ - while(__HAL_RCC_GET_FLAG(RCC_FLAG_HSERDY) != RESET) - { - if((HAL_GetTick() - tickstart ) > HSE_TIMEOUT_VALUE) - { - return HAL_TIMEOUT; - } - } - } - } - } - /*----------------------------- HSI Configuration --------------------------*/ - if(((RCC_OscInitStruct->OscillatorType) & RCC_OSCILLATORTYPE_HSI) == RCC_OSCILLATORTYPE_HSI) - { - /* Check the parameters */ - assert_param(IS_RCC_HSI(RCC_OscInitStruct->HSIState)); - assert_param(IS_RCC_CALIBRATION_VALUE(RCC_OscInitStruct->HSICalibrationValue)); - - /* Check if HSI is used as system clock or as PLL source when PLL is selected as system clock */ - if((__HAL_RCC_GET_SYSCLK_SOURCE() == RCC_SYSCLKSOURCE_STATUS_HSI) - || ((__HAL_RCC_GET_SYSCLK_SOURCE() == RCC_SYSCLKSOURCE_STATUS_PLLCLK) && (__HAL_RCC_GET_PLL_OSCSOURCE() == RCC_PLLSOURCE_HSI_DIV2))) - { - /* When HSI is used as system clock it will not disabled */ - if((__HAL_RCC_GET_FLAG(RCC_FLAG_HSIRDY) != RESET) && (RCC_OscInitStruct->HSIState != RCC_HSI_ON)) - { - return HAL_ERROR; - } - /* Otherwise, just the calibration is allowed */ - else - { - /* Adjusts the Internal High Speed oscillator (HSI) calibration value.*/ - __HAL_RCC_HSI_CALIBRATIONVALUE_ADJUST(RCC_OscInitStruct->HSICalibrationValue); - } - } - else - { - /* Check the HSI State */ - if(RCC_OscInitStruct->HSIState != RCC_HSI_OFF) - { - /* Enable the Internal High Speed oscillator (HSI). */ - __HAL_RCC_HSI_ENABLE(); - - /* Get Start Tick */ - tickstart = HAL_GetTick(); - - /* Wait till HSI is ready */ - while(__HAL_RCC_GET_FLAG(RCC_FLAG_HSIRDY) == RESET) - { - if((HAL_GetTick() - tickstart ) > HSI_TIMEOUT_VALUE) - { - return HAL_TIMEOUT; - } - } - - /* Adjusts the Internal High Speed oscillator (HSI) calibration value.*/ - __HAL_RCC_HSI_CALIBRATIONVALUE_ADJUST(RCC_OscInitStruct->HSICalibrationValue); - } - else - { - /* Disable the Internal High Speed oscillator (HSI). */ - __HAL_RCC_HSI_DISABLE(); - - /* Get Start Tick */ - tickstart = HAL_GetTick(); - - /* Wait till HSI is disabled */ - while(__HAL_RCC_GET_FLAG(RCC_FLAG_HSIRDY) != RESET) - { - if((HAL_GetTick() - tickstart ) > HSI_TIMEOUT_VALUE) - { - return HAL_TIMEOUT; - } - } - } - } - } - /*------------------------------ LSI Configuration -------------------------*/ - if(((RCC_OscInitStruct->OscillatorType) & RCC_OSCILLATORTYPE_LSI) == RCC_OSCILLATORTYPE_LSI) - { - /* Check the parameters */ - assert_param(IS_RCC_LSI(RCC_OscInitStruct->LSIState)); - - /* Check the LSI State */ - if(RCC_OscInitStruct->LSIState != RCC_LSI_OFF) - { - /* Enable the Internal Low Speed oscillator (LSI). */ - __HAL_RCC_LSI_ENABLE(); - - /* Get Start Tick */ - tickstart = HAL_GetTick(); - - /* Wait till LSI is ready */ - while(__HAL_RCC_GET_FLAG(RCC_FLAG_LSIRDY) == RESET) - { - if((HAL_GetTick() - tickstart ) > LSI_TIMEOUT_VALUE) - { - return HAL_TIMEOUT; - } - } - /* To have a fully stabilized clock in the specified range, a software delay of 1ms - should be added.*/ - HAL_Delay(1); - } - else - { - /* Disable the Internal Low Speed oscillator (LSI). */ - __HAL_RCC_LSI_DISABLE(); - - /* Get Start Tick */ - tickstart = HAL_GetTick(); - - /* Wait till LSI is disabled */ - while(__HAL_RCC_GET_FLAG(RCC_FLAG_LSIRDY) != RESET) - { - if((HAL_GetTick() - tickstart ) > LSI_TIMEOUT_VALUE) - { - return HAL_TIMEOUT; - } - } - } - } - /*------------------------------ LSE Configuration -------------------------*/ - if(((RCC_OscInitStruct->OscillatorType) & RCC_OSCILLATORTYPE_LSE) == RCC_OSCILLATORTYPE_LSE) - { - /* Check the parameters */ - assert_param(IS_RCC_LSE(RCC_OscInitStruct->LSEState)); - - /* Enable Power Clock*/ - __HAL_RCC_PWR_CLK_ENABLE(); - - /* Enable write access to Backup domain */ - SET_BIT(PWR->CR, PWR_CR_DBP); - - /* Wait for Backup domain Write protection disable */ - tickstart = HAL_GetTick(); - - while((PWR->CR & PWR_CR_DBP) == RESET) - { - if((HAL_GetTick() - tickstart) > RCC_DBP_TIMEOUT_VALUE) - { - return HAL_TIMEOUT; - } - } - - /* Set the new LSE configuration -----------------------------------------*/ - __HAL_RCC_LSE_CONFIG(RCC_OscInitStruct->LSEState); - /* Check the LSE State */ - if(RCC_OscInitStruct->LSEState != RCC_LSE_OFF) - { - /* Get Start Tick */ - tickstart = HAL_GetTick(); - - /* Wait till LSE is ready */ - while(__HAL_RCC_GET_FLAG(RCC_FLAG_LSERDY) == RESET) - { - if((HAL_GetTick() - tickstart ) > RCC_LSE_TIMEOUT_VALUE) - { - return HAL_TIMEOUT; - } - } - } - else - { - /* Get Start Tick */ - tickstart = HAL_GetTick(); - - /* Wait till LSE is disabled */ - while(__HAL_RCC_GET_FLAG(RCC_FLAG_LSERDY) != RESET) - { - if((HAL_GetTick() - tickstart ) > RCC_LSE_TIMEOUT_VALUE) - { - return HAL_TIMEOUT; - } - } - } - } - -#if defined(RCC_CR_PLL2ON) - /*-------------------------------- PLL2 Configuration -----------------------*/ - /* Check the parameters */ - assert_param(IS_RCC_PLL2(RCC_OscInitStruct->PLL2.PLL2State)); - if ((RCC_OscInitStruct->PLL2.PLL2State) != RCC_PLL2_NONE) - { - /* This bit can not be cleared if the PLL2 clock is used indirectly as system - clock (i.e. it is used as PLL clock entry that is used as system clock). */ - if((__HAL_RCC_GET_PLL_OSCSOURCE() == RCC_PLLSOURCE_HSE) && \ - (__HAL_RCC_GET_SYSCLK_SOURCE() == RCC_SYSCLKSOURCE_STATUS_PLLCLK) && \ - ((READ_BIT(RCC->CFGR2,RCC_CFGR2_PREDIV1SRC)) == RCC_CFGR2_PREDIV1SRC_PLL2)) - { - return HAL_ERROR; - } - else - { - if((RCC_OscInitStruct->PLL2.PLL2State) == RCC_PLL2_ON) - { - /* Check the parameters */ - assert_param(IS_RCC_PLL2_MUL(RCC_OscInitStruct->PLL2.PLL2MUL)); - assert_param(IS_RCC_HSE_PREDIV2(RCC_OscInitStruct->PLL2.HSEPrediv2Value)); - - /* Prediv2 can be written only when the PLLI2S is disabled. */ - /* Return an error only if new value is different from the programmed value */ - if (HAL_IS_BIT_SET(RCC->CR,RCC_CR_PLL3ON) && \ - (__HAL_RCC_HSE_GET_PREDIV2() != RCC_OscInitStruct->PLL2.HSEPrediv2Value)) - { - return HAL_ERROR; - } - - /* Disable the main PLL2. */ - __HAL_RCC_PLL2_DISABLE(); - - /* Get Start Tick */ - tickstart = HAL_GetTick(); - - /* Wait till PLL2 is disabled */ - while(__HAL_RCC_GET_FLAG(RCC_FLAG_PLL2RDY) != RESET) - { - if((HAL_GetTick() - tickstart ) > PLL2_TIMEOUT_VALUE) - { - return HAL_TIMEOUT; - } - } - - /* Configure the HSE prediv2 factor --------------------------------*/ - __HAL_RCC_HSE_PREDIV2_CONFIG(RCC_OscInitStruct->PLL2.HSEPrediv2Value); - - /* Configure the main PLL2 multiplication factors. */ - __HAL_RCC_PLL2_CONFIG(RCC_OscInitStruct->PLL2.PLL2MUL); - - /* Enable the main PLL2. */ - __HAL_RCC_PLL2_ENABLE(); - - /* Get Start Tick */ - tickstart = HAL_GetTick(); - - /* Wait till PLL2 is ready */ - while(__HAL_RCC_GET_FLAG(RCC_FLAG_PLL2RDY) == RESET) - { - if((HAL_GetTick() - tickstart ) > PLL2_TIMEOUT_VALUE) - { - return HAL_TIMEOUT; - } - } - } - else - { - /* Set PREDIV1 source to HSE */ - CLEAR_BIT(RCC->CFGR2, RCC_CFGR2_PREDIV1SRC); - - /* Disable the main PLL2. */ - __HAL_RCC_PLL2_DISABLE(); - - /* Get Start Tick */ - tickstart = HAL_GetTick(); - - /* Wait till PLL2 is disabled */ - while(__HAL_RCC_GET_FLAG(RCC_FLAG_PLL2RDY) != RESET) - { - if((HAL_GetTick() - tickstart ) > PLL2_TIMEOUT_VALUE) - { - return HAL_TIMEOUT; - } - } - } - } - } - -#endif /* RCC_CR_PLL2ON */ - /*-------------------------------- PLL Configuration -----------------------*/ - /* Check the parameters */ - assert_param(IS_RCC_PLL(RCC_OscInitStruct->PLL.PLLState)); - if ((RCC_OscInitStruct->PLL.PLLState) != RCC_PLL_NONE) - { - /* Check if the PLL is used as system clock or not */ - if(__HAL_RCC_GET_SYSCLK_SOURCE() != RCC_SYSCLKSOURCE_STATUS_PLLCLK) - { - if((RCC_OscInitStruct->PLL.PLLState) == RCC_PLL_ON) - { - /* Check the parameters */ - assert_param(IS_RCC_PLLSOURCE(RCC_OscInitStruct->PLL.PLLSource)); - assert_param(IS_RCC_PLL_MUL(RCC_OscInitStruct->PLL.PLLMUL)); - - /* Disable the main PLL. */ - __HAL_RCC_PLL_DISABLE(); - - /* Get Start Tick */ - tickstart = HAL_GetTick(); - - /* Wait till PLL is disabled */ - while(__HAL_RCC_GET_FLAG(RCC_FLAG_PLLRDY) != RESET) - { - if((HAL_GetTick() - tickstart ) > PLL_TIMEOUT_VALUE) - { - return HAL_TIMEOUT; - } - } - - /* Configure the HSE prediv factor --------------------------------*/ - /* It can be written only when the PLL is disabled. Not used in PLL source is different than HSE */ - if(RCC_OscInitStruct->PLL.PLLSource == RCC_PLLSOURCE_HSE) - { - /* Check the parameter */ - assert_param(IS_RCC_HSE_PREDIV(RCC_OscInitStruct->HSEPredivValue)); -#if defined(RCC_CFGR2_PREDIV1SRC) - assert_param(IS_RCC_PREDIV1_SOURCE(RCC_OscInitStruct->Prediv1Source)); - - /* Set PREDIV1 source */ - SET_BIT(RCC->CFGR2, RCC_OscInitStruct->Prediv1Source); -#endif /* RCC_CFGR2_PREDIV1SRC */ - - /* Set PREDIV1 Value */ - __HAL_RCC_HSE_PREDIV_CONFIG(RCC_OscInitStruct->HSEPredivValue); - } - - /* Configure the main PLL clock source and multiplication factors. */ - __HAL_RCC_PLL_CONFIG(RCC_OscInitStruct->PLL.PLLSource, - RCC_OscInitStruct->PLL.PLLMUL); - /* Enable the main PLL. */ - __HAL_RCC_PLL_ENABLE(); - - /* Get Start Tick */ - tickstart = HAL_GetTick(); - - /* Wait till PLL is ready */ - while(__HAL_RCC_GET_FLAG(RCC_FLAG_PLLRDY) == RESET) - { - if((HAL_GetTick() - tickstart ) > PLL_TIMEOUT_VALUE) - { - return HAL_TIMEOUT; - } - } - } - else - { - /* Disable the main PLL. */ - __HAL_RCC_PLL_DISABLE(); - - /* Get Start Tick */ - tickstart = HAL_GetTick(); - - /* Wait till PLL is disabled */ - while(__HAL_RCC_GET_FLAG(RCC_FLAG_PLLRDY) != RESET) - { - if((HAL_GetTick() - tickstart ) > PLL_TIMEOUT_VALUE) - { - return HAL_TIMEOUT; - } - } - } - } - else - { - return HAL_ERROR; - } - } - - return HAL_OK; -} - -/** - * @brief Initializes the CPU, AHB and APB buses clocks according to the specified - * parameters in the RCC_ClkInitStruct. - * @param RCC_ClkInitStruct pointer to an RCC_OscInitTypeDef structure that - * contains the configuration information for the RCC peripheral. - * @param FLatency FLASH Latency - * The value of this parameter depend on device used within the same series - * @note The SystemCoreClock CMSIS variable is used to store System Clock Frequency - * and updated by @ref HAL_RCC_GetHCLKFreq() function called within this function - * - * @note The HSI is used (enabled by hardware) as system clock source after - * start-up from Reset, wake-up from STOP and STANDBY mode, or in case - * of failure of the HSE used directly or indirectly as system clock - * (if the Clock Security System CSS is enabled). - * - * @note A switch from one clock source to another occurs only if the target - * clock source is ready (clock stable after start-up delay or PLL locked). - * If a clock source which is not yet ready is selected, the switch will - * occur when the clock source will be ready. - * You can use @ref HAL_RCC_GetClockConfig() function to know which clock is - * currently used as system clock source. - * @retval HAL status - */ -HAL_StatusTypeDef HAL_RCC_ClockConfig(RCC_ClkInitTypeDef *RCC_ClkInitStruct, uint32_t FLatency) -{ - uint32_t tickstart = 0; - - /* Check the parameters */ - assert_param(RCC_ClkInitStruct != NULL); - assert_param(IS_RCC_CLOCKTYPE(RCC_ClkInitStruct->ClockType)); - assert_param(IS_FLASH_LATENCY(FLatency)); - - /* To correctly read data from FLASH memory, the number of wait states (LATENCY) - must be correctly programmed according to the frequency of the CPU clock - (HCLK) of the device. */ - -#if defined(FLASH_ACR_LATENCY) - /* Increasing the number of wait states because of higher CPU frequency */ - if(FLatency > (FLASH->ACR & FLASH_ACR_LATENCY)) - { - /* Program the new number of wait states to the LATENCY bits in the FLASH_ACR register */ - __HAL_FLASH_SET_LATENCY(FLatency); - - /* Check that the new number of wait states is taken into account to access the Flash - memory by reading the FLASH_ACR register */ - if((FLASH->ACR & FLASH_ACR_LATENCY) != FLatency) - { - return HAL_ERROR; - } - } - -#endif /* FLASH_ACR_LATENCY */ - /*-------------------------- HCLK Configuration --------------------------*/ - if(((RCC_ClkInitStruct->ClockType) & RCC_CLOCKTYPE_HCLK) == RCC_CLOCKTYPE_HCLK) - { - assert_param(IS_RCC_HCLK(RCC_ClkInitStruct->AHBCLKDivider)); - MODIFY_REG(RCC->CFGR, RCC_CFGR_HPRE, RCC_ClkInitStruct->AHBCLKDivider); - } - - /*------------------------- SYSCLK Configuration ---------------------------*/ - if(((RCC_ClkInitStruct->ClockType) & RCC_CLOCKTYPE_SYSCLK) == RCC_CLOCKTYPE_SYSCLK) - { - assert_param(IS_RCC_SYSCLKSOURCE(RCC_ClkInitStruct->SYSCLKSource)); - - /* HSE is selected as System Clock Source */ - if(RCC_ClkInitStruct->SYSCLKSource == RCC_SYSCLKSOURCE_HSE) - { - /* Check the HSE ready flag */ - if(__HAL_RCC_GET_FLAG(RCC_FLAG_HSERDY) == RESET) - { - return HAL_ERROR; - } - } - /* PLL is selected as System Clock Source */ - else if(RCC_ClkInitStruct->SYSCLKSource == RCC_SYSCLKSOURCE_PLLCLK) - { - /* Check the PLL ready flag */ - if(__HAL_RCC_GET_FLAG(RCC_FLAG_PLLRDY) == RESET) - { - return HAL_ERROR; - } - } - /* HSI is selected as System Clock Source */ - else - { - /* Check the HSI ready flag */ - if(__HAL_RCC_GET_FLAG(RCC_FLAG_HSIRDY) == RESET) - { - return HAL_ERROR; - } - } - __HAL_RCC_SYSCLK_CONFIG(RCC_ClkInitStruct->SYSCLKSource); - - /* Get Start Tick */ - tickstart = HAL_GetTick(); - - if(RCC_ClkInitStruct->SYSCLKSource == RCC_SYSCLKSOURCE_HSE) - { - while (__HAL_RCC_GET_SYSCLK_SOURCE() != RCC_SYSCLKSOURCE_STATUS_HSE) - { - if((HAL_GetTick() - tickstart ) > CLOCKSWITCH_TIMEOUT_VALUE) - { - return HAL_TIMEOUT; - } - } - } - else if(RCC_ClkInitStruct->SYSCLKSource == RCC_SYSCLKSOURCE_PLLCLK) - { - while (__HAL_RCC_GET_SYSCLK_SOURCE() != RCC_SYSCLKSOURCE_STATUS_PLLCLK) - { - if((HAL_GetTick() - tickstart ) > CLOCKSWITCH_TIMEOUT_VALUE) - { - return HAL_TIMEOUT; - } - } - } - else - { - while (__HAL_RCC_GET_SYSCLK_SOURCE() != RCC_SYSCLKSOURCE_STATUS_HSI) - { - if((HAL_GetTick() - tickstart ) > CLOCKSWITCH_TIMEOUT_VALUE) - { - return HAL_TIMEOUT; - } - } - } - } -#if defined(FLASH_ACR_LATENCY) - /* Decreasing the number of wait states because of lower CPU frequency */ - if(FLatency < (FLASH->ACR & FLASH_ACR_LATENCY)) - { - /* Program the new number of wait states to the LATENCY bits in the FLASH_ACR register */ - __HAL_FLASH_SET_LATENCY(FLatency); - - /* Check that the new number of wait states is taken into account to access the Flash - memory by reading the FLASH_ACR register */ - if((FLASH->ACR & FLASH_ACR_LATENCY) != FLatency) - { - return HAL_ERROR; - } - } -#endif /* FLASH_ACR_LATENCY */ - - /*-------------------------- PCLK1 Configuration ---------------------------*/ - if(((RCC_ClkInitStruct->ClockType) & RCC_CLOCKTYPE_PCLK1) == RCC_CLOCKTYPE_PCLK1) - { - assert_param(IS_RCC_PCLK(RCC_ClkInitStruct->APB1CLKDivider)); - MODIFY_REG(RCC->CFGR, RCC_CFGR_PPRE1, RCC_ClkInitStruct->APB1CLKDivider); - } - - /*-------------------------- PCLK2 Configuration ---------------------------*/ - if(((RCC_ClkInitStruct->ClockType) & RCC_CLOCKTYPE_PCLK2) == RCC_CLOCKTYPE_PCLK2) - { - assert_param(IS_RCC_PCLK(RCC_ClkInitStruct->APB2CLKDivider)); - MODIFY_REG(RCC->CFGR, RCC_CFGR_PPRE2, ((RCC_ClkInitStruct->APB2CLKDivider) << 3)); - } - - /* Update the SystemCoreClock global variable */ - SystemCoreClock = HAL_RCC_GetSysClockFreq() >> AHBPrescTable[(RCC->CFGR & RCC_CFGR_HPRE)>> RCC_CFGR_HPRE_BITNUMBER]; - - /* Configure the source of time base considering new system clocks settings*/ - HAL_InitTick (TICK_INT_PRIORITY); - - return HAL_OK; -} - -/** - * @} - */ - -/** @defgroup RCC_Exported_Functions_Group2 Peripheral Control functions - * @brief RCC clocks control functions - * - @verbatim - =============================================================================== - ##### Peripheral Control functions ##### - =============================================================================== - [..] - This subsection provides a set of functions allowing to control the RCC Clocks - frequencies. - - @endverbatim - * @{ - */ - -/** - * @brief Selects the clock source to output on MCO pin. - * @note MCO pin should be configured in alternate function mode. - * @param RCC_MCOx specifies the output direction for the clock source. - * This parameter can be one of the following values: - * @arg @ref RCC_MCO1 Clock source to output on MCO1 pin(PA8). - * @param RCC_MCOSource specifies the clock source to output. - * This parameter can be one of the following values: - * @arg @ref RCC_MCO1SOURCE_NOCLOCK No clock selected as MCO clock - * @arg @ref RCC_MCO1SOURCE_SYSCLK System clock selected as MCO clock - * @arg @ref RCC_MCO1SOURCE_HSI HSI selected as MCO clock - * @arg @ref RCC_MCO1SOURCE_HSE HSE selected as MCO clock - @if STM32F105xC - * @arg @ref RCC_MCO1SOURCE_PLLCLK PLL clock divided by 2 selected as MCO source - * @arg @ref RCC_MCO1SOURCE_PLL2CLK PLL2 clock selected as MCO source - * @arg @ref RCC_MCO1SOURCE_PLL3CLK_DIV2 PLL3 clock divided by 2 selected as MCO source - * @arg @ref RCC_MCO1SOURCE_EXT_HSE XT1 external 3-25 MHz oscillator clock selected as MCO source - * @arg @ref RCC_MCO1SOURCE_PLL3CLK PLL3 clock selected as MCO source - @endif - @if STM32F107xC - * @arg @ref RCC_MCO1SOURCE_PLLCLK PLL clock divided by 2 selected as MCO source - * @arg @ref RCC_MCO1SOURCE_PLL2CLK PLL2 clock selected as MCO source - * @arg @ref RCC_MCO1SOURCE_PLL3CLK_DIV2 PLL3 clock divided by 2 selected as MCO source - * @arg @ref RCC_MCO1SOURCE_EXT_HSE XT1 external 3-25 MHz oscillator clock selected as MCO source - * @arg @ref RCC_MCO1SOURCE_PLL3CLK PLL3 clock selected as MCO source - @endif - * @param RCC_MCODiv specifies the MCO DIV. - * This parameter can be one of the following values: - * @arg @ref RCC_MCODIV_1 no division applied to MCO clock - * @retval None - */ -void HAL_RCC_MCOConfig(uint32_t RCC_MCOx, uint32_t RCC_MCOSource, uint32_t RCC_MCODiv) -{ - GPIO_InitTypeDef gpio = {0}; - - /* Check the parameters */ - assert_param(IS_RCC_MCO(RCC_MCOx)); - assert_param(IS_RCC_MCODIV(RCC_MCODiv)); - assert_param(IS_RCC_MCO1SOURCE(RCC_MCOSource)); - - /* Configure the MCO1 pin in alternate function mode */ - gpio.Mode = GPIO_MODE_AF_PP; - gpio.Speed = GPIO_SPEED_FREQ_HIGH; - gpio.Pull = GPIO_NOPULL; - gpio.Pin = MCO1_PIN; - - /* MCO1 Clock Enable */ - MCO1_CLK_ENABLE(); - - HAL_GPIO_Init(MCO1_GPIO_PORT, &gpio); - - /* Configure the MCO clock source */ - __HAL_RCC_MCO1_CONFIG(RCC_MCOSource, RCC_MCODiv); -} - -/** - * @brief Enables the Clock Security System. - * @note If a failure is detected on the HSE oscillator clock, this oscillator - * is automatically disabled and an interrupt is generated to inform the - * software about the failure (Clock Security System Interrupt, CSSI), - * allowing the MCU to perform rescue operations. The CSSI is linked to - * the Cortex-M3 NMI (Non-Maskable Interrupt) exception vector. - * @retval None - */ -void HAL_RCC_EnableCSS(void) -{ - *(__IO uint32_t *) RCC_CR_CSSON_BB = (uint32_t)ENABLE; -} - -/** - * @brief Disables the Clock Security System. - * @retval None - */ -void HAL_RCC_DisableCSS(void) -{ - *(__IO uint32_t *) RCC_CR_CSSON_BB = (uint32_t)DISABLE; -} - -/** - * @brief Returns the SYSCLK frequency - * @note The system frequency computed by this function is not the real - * frequency in the chip. It is calculated based on the predefined - * constant and the selected clock source: - * @note If SYSCLK source is HSI, function returns values based on HSI_VALUE(*) - * @note If SYSCLK source is HSE, function returns a value based on HSE_VALUE - * divided by PREDIV factor(**) - * @note If SYSCLK source is PLL, function returns a value based on HSE_VALUE - * divided by PREDIV factor(**) or HSI_VALUE(*) multiplied by the PLL factor. - * @note (*) HSI_VALUE is a constant defined in stm32f1xx_hal_conf.h file (default value - * 8 MHz) but the real value may vary depending on the variations - * in voltage and temperature. - * @note (**) HSE_VALUE is a constant defined in stm32f1xx_hal_conf.h file (default value - * 8 MHz), user has to ensure that HSE_VALUE is same as the real - * frequency of the crystal used. Otherwise, this function may - * have wrong result. - * - * @note The result of this function could be not correct when using fractional - * value for HSE crystal. - * - * @note This function can be used by the user application to compute the - * baud-rate for the communication peripherals or configure other parameters. - * - * @note Each time SYSCLK changes, this function must be called to update the - * right SYSCLK value. Otherwise, any configuration based on this function will be incorrect. - * - * @retval SYSCLK frequency - */ -uint32_t HAL_RCC_GetSysClockFreq(void) -{ -#if defined(RCC_CFGR2_PREDIV1SRC) - const uint8_t aPLLMULFactorTable[12] = {0, 0, 4, 5, 6, 7, 8, 9, 0, 0, 0, 13}; - const uint8_t aPredivFactorTable[16] = { 1, 2, 3, 4, 5, 6, 7, 8, 9,10, 11, 12, 13, 14, 15, 16}; -#else - const uint8_t aPLLMULFactorTable[16] = { 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 16}; -#if defined(RCC_CFGR2_PREDIV1) - const uint8_t aPredivFactorTable[16] = { 1, 2, 3, 4, 5, 6, 7, 8, 9,10, 11, 12, 13, 14, 15, 16}; -#else - const uint8_t aPredivFactorTable[2] = { 1, 2}; -#endif /*RCC_CFGR2_PREDIV1*/ - -#endif - uint32_t tmpreg = 0, prediv = 0, pllclk = 0, pllmul = 0; - uint32_t sysclockfreq = 0; -#if defined(RCC_CFGR2_PREDIV1SRC) - uint32_t prediv2 = 0, pll2mul = 0; -#endif /*RCC_CFGR2_PREDIV1SRC*/ - - tmpreg = RCC->CFGR; - - /* Get SYSCLK source -------------------------------------------------------*/ - switch (tmpreg & RCC_CFGR_SWS) - { - case RCC_SYSCLKSOURCE_STATUS_HSE: /* HSE used as system clock */ - { - sysclockfreq = HSE_VALUE; - break; - } - case RCC_SYSCLKSOURCE_STATUS_PLLCLK: /* PLL used as system clock */ - { - pllmul = aPLLMULFactorTable[(uint32_t)(tmpreg & RCC_CFGR_PLLMULL) >> POSITION_VAL(RCC_CFGR_PLLMULL)]; - if ((tmpreg & RCC_CFGR_PLLSRC) != RCC_PLLSOURCE_HSI_DIV2) - { -#if defined(RCC_CFGR2_PREDIV1) - prediv = aPredivFactorTable[(uint32_t)(RCC->CFGR2 & RCC_CFGR2_PREDIV1) >> POSITION_VAL(RCC_CFGR2_PREDIV1)]; -#else - prediv = aPredivFactorTable[(uint32_t)(RCC->CFGR & RCC_CFGR_PLLXTPRE) >> POSITION_VAL(RCC_CFGR_PLLXTPRE)]; -#endif /*RCC_CFGR2_PREDIV1*/ -#if defined(RCC_CFGR2_PREDIV1SRC) - - if(HAL_IS_BIT_SET(RCC->CFGR2, RCC_CFGR2_PREDIV1SRC)) - { - /* PLL2 selected as Prediv1 source */ - /* PLLCLK = PLL2CLK / PREDIV1 * PLLMUL with PLL2CLK = HSE/PREDIV2 * PLL2MUL */ - prediv2 = ((RCC->CFGR2 & RCC_CFGR2_PREDIV2) >> POSITION_VAL(RCC_CFGR2_PREDIV2)) + 1; - pll2mul = ((RCC->CFGR2 & RCC_CFGR2_PLL2MUL) >> POSITION_VAL(RCC_CFGR2_PLL2MUL)) + 2; - pllclk = (uint32_t)((((HSE_VALUE / prediv2) * pll2mul) / prediv) * pllmul); - } - else - { - /* HSE used as PLL clock source : PLLCLK = HSE/PREDIV1 * PLLMUL */ - pllclk = (uint32_t)((HSE_VALUE / prediv) * pllmul); - } - - /* If PLLMUL was set to 13 means that it was to cover the case PLLMUL 6.5 (avoid using float) */ - /* In this case need to divide pllclk by 2 */ - if (pllmul == aPLLMULFactorTable[(uint32_t)(RCC_CFGR_PLLMULL6_5) >> POSITION_VAL(RCC_CFGR_PLLMULL)]) - { - pllclk = pllclk / 2; - } -#else - /* HSE used as PLL clock source : PLLCLK = HSE/PREDIV1 * PLLMUL */ - pllclk = (uint32_t)((HSE_VALUE / prediv) * pllmul); -#endif /*RCC_CFGR2_PREDIV1SRC*/ - } - else - { - /* HSI used as PLL clock source : PLLCLK = HSI/2 * PLLMUL */ - pllclk = (uint32_t)((HSI_VALUE >> 1) * pllmul); - } - sysclockfreq = pllclk; - break; - } - case RCC_SYSCLKSOURCE_STATUS_HSI: /* HSI used as system clock source */ - default: /* HSI used as system clock */ - { - sysclockfreq = HSI_VALUE; - break; - } - } - return sysclockfreq; -} - -/** - * @brief Returns the HCLK frequency - * @note Each time HCLK changes, this function must be called to update the - * right HCLK value. Otherwise, any configuration based on this function will be incorrect. - * - * @note The SystemCoreClock CMSIS variable is used to store System Clock Frequency - * and updated within this function - * @retval HCLK frequency - */ -uint32_t HAL_RCC_GetHCLKFreq(void) -{ - return SystemCoreClock; -} - -/** - * @brief Returns the PCLK1 frequency - * @note Each time PCLK1 changes, this function must be called to update the - * right PCLK1 value. Otherwise, any configuration based on this function will be incorrect. - * @retval PCLK1 frequency - */ -uint32_t HAL_RCC_GetPCLK1Freq(void) -{ - /* Get HCLK source and Compute PCLK1 frequency ---------------------------*/ - return (HAL_RCC_GetHCLKFreq() >> APBPrescTable[(RCC->CFGR & RCC_CFGR_PPRE1) >> RCC_CFGR_PPRE1_BITNUMBER]); -} - -/** - * @brief Returns the PCLK2 frequency - * @note Each time PCLK2 changes, this function must be called to update the - * right PCLK2 value. Otherwise, any configuration based on this function will be incorrect. - * @retval PCLK2 frequency - */ -uint32_t HAL_RCC_GetPCLK2Freq(void) -{ - /* Get HCLK source and Compute PCLK2 frequency ---------------------------*/ - return (HAL_RCC_GetHCLKFreq()>> APBPrescTable[(RCC->CFGR & RCC_CFGR_PPRE2) >> RCC_CFGR_PPRE2_BITNUMBER]); -} - -/** - * @brief Configures the RCC_OscInitStruct according to the internal - * RCC configuration registers. - * @param RCC_OscInitStruct pointer to an RCC_OscInitTypeDef structure that - * will be configured. - * @retval None - */ -void HAL_RCC_GetOscConfig(RCC_OscInitTypeDef *RCC_OscInitStruct) -{ - /* Check the parameters */ - assert_param(RCC_OscInitStruct != NULL); - - /* Set all possible values for the Oscillator type parameter ---------------*/ - RCC_OscInitStruct->OscillatorType = RCC_OSCILLATORTYPE_HSE | RCC_OSCILLATORTYPE_HSI \ - | RCC_OSCILLATORTYPE_LSE | RCC_OSCILLATORTYPE_LSI; - -#if defined(RCC_CFGR2_PREDIV1SRC) - /* Get the Prediv1 source --------------------------------------------------*/ - RCC_OscInitStruct->Prediv1Source = READ_BIT(RCC->CFGR2,RCC_CFGR2_PREDIV1SRC); -#endif /* RCC_CFGR2_PREDIV1SRC */ - - /* Get the HSE configuration -----------------------------------------------*/ - if((RCC->CR &RCC_CR_HSEBYP) == RCC_CR_HSEBYP) - { - RCC_OscInitStruct->HSEState = RCC_HSE_BYPASS; - } - else if((RCC->CR &RCC_CR_HSEON) == RCC_CR_HSEON) - { - RCC_OscInitStruct->HSEState = RCC_HSE_ON; - } - else - { - RCC_OscInitStruct->HSEState = RCC_HSE_OFF; - } - RCC_OscInitStruct->HSEPredivValue = __HAL_RCC_HSE_GET_PREDIV(); - - /* Get the HSI configuration -----------------------------------------------*/ - if((RCC->CR &RCC_CR_HSION) == RCC_CR_HSION) - { - RCC_OscInitStruct->HSIState = RCC_HSI_ON; - } - else - { - RCC_OscInitStruct->HSIState = RCC_HSI_OFF; - } - - RCC_OscInitStruct->HSICalibrationValue = (uint32_t)((RCC->CR & RCC_CR_HSITRIM) >> POSITION_VAL(RCC_CR_HSITRIM)); - - /* Get the LSE configuration -----------------------------------------------*/ - if((RCC->BDCR &RCC_BDCR_LSEBYP) == RCC_BDCR_LSEBYP) - { - RCC_OscInitStruct->LSEState = RCC_LSE_BYPASS; - } - else if((RCC->BDCR &RCC_BDCR_LSEON) == RCC_BDCR_LSEON) - { - RCC_OscInitStruct->LSEState = RCC_LSE_ON; - } - else - { - RCC_OscInitStruct->LSEState = RCC_LSE_OFF; - } - - /* Get the LSI configuration -----------------------------------------------*/ - if((RCC->CSR &RCC_CSR_LSION) == RCC_CSR_LSION) - { - RCC_OscInitStruct->LSIState = RCC_LSI_ON; - } - else - { - RCC_OscInitStruct->LSIState = RCC_LSI_OFF; - } - - - /* Get the PLL configuration -----------------------------------------------*/ - if((RCC->CR &RCC_CR_PLLON) == RCC_CR_PLLON) - { - RCC_OscInitStruct->PLL.PLLState = RCC_PLL_ON; - } - else - { - RCC_OscInitStruct->PLL.PLLState = RCC_PLL_OFF; - } - RCC_OscInitStruct->PLL.PLLSource = (uint32_t)(RCC->CFGR & RCC_CFGR_PLLSRC); - RCC_OscInitStruct->PLL.PLLMUL = (uint32_t)(RCC->CFGR & RCC_CFGR_PLLMULL); -#if defined(RCC_CR_PLL2ON) - /* Get the PLL2 configuration -----------------------------------------------*/ - if((RCC->CR &RCC_CR_PLL2ON) == RCC_CR_PLL2ON) - { - RCC_OscInitStruct->PLL2.PLL2State = RCC_PLL2_ON; - } - else - { - RCC_OscInitStruct->PLL2.PLL2State = RCC_PLL2_OFF; - } - RCC_OscInitStruct->PLL2.HSEPrediv2Value = __HAL_RCC_HSE_GET_PREDIV2(); - RCC_OscInitStruct->PLL2.PLL2MUL = (uint32_t)(RCC->CFGR2 & RCC_CFGR2_PLL2MUL); -#endif /* RCC_CR_PLL2ON */ -} - -/** - * @brief Get the RCC_ClkInitStruct according to the internal - * RCC configuration registers. - * @param RCC_ClkInitStruct pointer to an RCC_ClkInitTypeDef structure that - * contains the current clock configuration. - * @param pFLatency Pointer on the Flash Latency. - * @retval None - */ -void HAL_RCC_GetClockConfig(RCC_ClkInitTypeDef *RCC_ClkInitStruct, uint32_t *pFLatency) -{ - /* Check the parameters */ - assert_param(RCC_ClkInitStruct != NULL); - assert_param(pFLatency != NULL); - - /* Set all possible values for the Clock type parameter --------------------*/ - RCC_ClkInitStruct->ClockType = RCC_CLOCKTYPE_SYSCLK | RCC_CLOCKTYPE_HCLK | RCC_CLOCKTYPE_PCLK1 | RCC_CLOCKTYPE_PCLK2; - - /* Get the SYSCLK configuration --------------------------------------------*/ - RCC_ClkInitStruct->SYSCLKSource = (uint32_t)(RCC->CFGR & RCC_CFGR_SW); - - /* Get the HCLK configuration ----------------------------------------------*/ - RCC_ClkInitStruct->AHBCLKDivider = (uint32_t)(RCC->CFGR & RCC_CFGR_HPRE); - - /* Get the APB1 configuration ----------------------------------------------*/ - RCC_ClkInitStruct->APB1CLKDivider = (uint32_t)(RCC->CFGR & RCC_CFGR_PPRE1); - - /* Get the APB2 configuration ----------------------------------------------*/ - RCC_ClkInitStruct->APB2CLKDivider = (uint32_t)((RCC->CFGR & RCC_CFGR_PPRE2) >> 3); - -#if defined(FLASH_ACR_LATENCY) - /* Get the Flash Wait State (Latency) configuration ------------------------*/ - *pFLatency = (uint32_t)(FLASH->ACR & FLASH_ACR_LATENCY); -#else - /* For VALUE lines devices, only LATENCY_0 can be set*/ - *pFLatency = (uint32_t)FLASH_LATENCY_0; -#endif -} - -/** - * @brief This function handles the RCC CSS interrupt request. - * @note This API should be called under the NMI_Handler(). - * @retval None - */ -void HAL_RCC_NMI_IRQHandler(void) -{ - /* Check RCC CSSF flag */ - if(__HAL_RCC_GET_IT(RCC_IT_CSS)) - { - /* RCC Clock Security System interrupt user callback */ - HAL_RCC_CSSCallback(); - - /* Clear RCC CSS pending bit */ - __HAL_RCC_CLEAR_IT(RCC_IT_CSS); - } -} - -/** - * @brief RCC Clock Security System interrupt callback - * @retval none - */ -__weak void HAL_RCC_CSSCallback(void) -{ - /* NOTE : This function Should not be modified, when the callback is needed, - the HAL_RCC_CSSCallback could be implemented in the user file - */ -} - -/** - * @} - */ - -/** - * @} - */ - -#endif /* HAL_RCC_MODULE_ENABLED */ -/** - * @} - */ - -/** - * @} - */ - -/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/ |