From 44c8a1777f4a3bd619676c16852cb8764369a8ec Mon Sep 17 00:00:00 2001 From: Sebastian Huber Date: Wed, 4 Mar 2020 12:33:17 +0100 Subject: bsp/stm32h7: Import from STM32CubeMX-5.6.0 Update #3910. --- bsps/arm/stm32h7/hal/stm32h7xx_hal_rcc.c | 1775 ++++++++++++++++++++++++++++++ 1 file changed, 1775 insertions(+) create mode 100644 bsps/arm/stm32h7/hal/stm32h7xx_hal_rcc.c (limited to 'bsps/arm/stm32h7/hal/stm32h7xx_hal_rcc.c') diff --git a/bsps/arm/stm32h7/hal/stm32h7xx_hal_rcc.c b/bsps/arm/stm32h7/hal/stm32h7xx_hal_rcc.c new file mode 100644 index 0000000000..7d73fa5772 --- /dev/null +++ b/bsps/arm/stm32h7/hal/stm32h7xx_hal_rcc.c @@ -0,0 +1,1775 @@ +/** + ****************************************************************************** + * @file stm32h7xx_hal_rcc.c + * @author MCD Application Team + * @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 64MHz) with Flash 0 wait state,and all peripherals are off except + internal SRAM, Flash, JTAG and PWR + (+) There is no pre-scaler 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 analogue mode , 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 pre-scalers + (+) Enable the clock for the peripheral(s) to be used + (+) Configure the clock kernel source(s) for peripherals which clocks are not + derived from the System clock through :RCC_D1CCIPR,RCC_D2CCIP1R,RCC_D2CCIP2R + and RCC_D3CCIPR registers + + ##### 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. + (+) If peripheral is mapped on AHB: the delay is 2 AHB clock cycle + after the clock enable bit is set on the hardware register + (+) If peripheral is mapped on APB: the delay is 2 APB clock cycle + after the clock enable bit is set on the hardware register + + [..] + Implemented Workaround: + (+) For AHB & APB peripherals, a dummy read to the peripheral register has been + inserted in each __HAL_RCC_PPP_CLK_ENABLE() macro. + + @endverbatim + ****************************************************************************** + * @attention + * + *

© COPYRIGHT(c) 2017 STMicroelectronics. + * All rights reserved.

+ * + * This software component is licensed by ST under BSD 3-Clause license, + * the "License"; You may not use this file except in compliance with the + * License. You may obtain a copy of the License at: + * opensource.org/licenses/BSD-3-Clause + * + ****************************************************************************** + */ + +/* Includes ------------------------------------------------------------------*/ +#include "stm32h7xx_hal.h" + +/** @addtogroup STM32H7xx_HAL_Driver + * @{ + */ + +/** @defgroup RCC RCC + * @brief RCC HAL module driver + * @{ + */ + +#ifdef HAL_RCC_MODULE_ENABLED + +/* Private typedef -----------------------------------------------------------*/ +/* Private define ------------------------------------------------------------*/ +/* 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 + +#define MCO2_CLK_ENABLE() __HAL_RCC_GPIOC_CLK_ENABLE() +#define MCO2_GPIO_PORT GPIOC +#define MCO2_PIN GPIO_PIN_9 + +/** + * @} + */ +/* 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,CSI, LSI,HSI48, PLL, CSS and MCO) and the System buses clocks (SYSCLK, AHB3, AHB1 + AHB2,AHB4,APB3, APB1L, APB1H, APB2, and APB4). + + [..] Internal/external clock and PLL configuration + (#) HSI (high-speed internal), 64 MHz factory-trimmed RC used directly or through + the PLL as System clock source. + (#) CSI is a low-power RC oscillator which can be used directly as system clock, peripheral + clock, or PLL input.But even with frequency calibration, is less accurate than an + external crystal oscillator or ceramic resonator. + (#) LSI (low-speed internal), 32 KHz low consumption RC used as IWDG and/or RTC + clock source. + + (#) HSE (high-speed external), 4 to 48 MHz 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 , The RCC features three independent PLLs (clocked by HSI , HSE or CSI), + featuring three different output clocks and able to work either in integer or Fractional mode. + (++) A main PLL, PLL1, which is generally used to provide clocks to the CPU + and to some peripherals. + (++) Two dedicated PLLs, PLL2 and PLL3, which are used to generate the kernel clock for peripherals. + + + (#) CSS (Clock security system), once enabled and if a HSE clock failure occurs + (HSE used directly or through PLL as System clock source), the System clock + is automatically switched to HSI and an interrupt is generated if enabled. + The interrupt is linked to the Cortex-M NMI (Non-Mask-able Interrupt) + exception vector. + + (#) MCO1 (micro controller clock output), used to output HSI, LSE, HSE, PLL1(PLL1_Q) + or HSI48 clock (through a configurable pre-scaler) on PA8 pin. + + (#) MCO2 (micro controller clock output), used to output HSE, PLL2(PLL2_P), SYSCLK, + LSI, CSI, or PLL1(PLL1_P) clock (through a configurable pre-scaler) on PC9 pin. + + [..] System, AHB and APB buses clocks configuration + (#) Several clock sources can be used to drive the System clock (SYSCLK): CSI,HSI, + HSE and PLL. + The AHB clock (HCLK) is derived from System core clock through configurable + pre-scaler and used to clock the CPU, memory and peripherals mapped + on AHB and APB bus of the 3 Domains (D1, D2, D3)* through configurable pre-scalers + and used to clock the peripherals mapped on these buses. You can use + "HAL_RCC_GetSysClockFreq()" function to retrieve system clock frequency. + + -@- All the peripheral clocks are derived from the System clock (SYSCLK) except those + with dual clock domain where kernel source clock could be selected through + RCC_D1CCIPR,RCC_D2CCIP1R,RCC_D2CCIP2R and RCC_D3CCIPR registers. + + (*) : 2 Domains (CD and SRD) for stm32h7a3xx and stm32h7b3xx family lines. +@endverbatim + * @{ + */ + +/** + * @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, PLL1, PLL2 and PLL3 OFF + * - AHB, APB Bus pre-scaler set to 1. + * - CSS, MCO1 and MCO2 OFF + * - All interrupts disabled + * @note This function doesn't modify the configuration of the + * - Peripheral clocks + * - LSI, LSE and RTC clocks + * @retval HAL status + */ +HAL_StatusTypeDef HAL_RCC_DeInit(void) +{ + uint32_t tickstart; + + /* Increasing the CPU frequency */ + if(FLASH_LATENCY_DEFAULT > __HAL_FLASH_GET_LATENCY()) + { + /* Program the new number of wait states to the LATENCY bits in the FLASH_ACR register */ + __HAL_FLASH_SET_LATENCY(FLASH_LATENCY_DEFAULT); + + /* Check that the new number of wait states is taken into account to access the Flash + memory by reading the FLASH_ACR register */ + if(__HAL_FLASH_GET_LATENCY() != FLASH_LATENCY_DEFAULT) + { + return HAL_ERROR; + } + + } + + + /* Get Start Tick */ + tickstart = HAL_GetTick(); + + /* Set HSION bit */ + SET_BIT(RCC->CR, RCC_CR_HSION); + + /* Wait till HSI is ready */ + while (READ_BIT(RCC->CR, RCC_CR_HSIRDY) == 0U) + { + if ((HAL_GetTick() - tickstart) > HSI_TIMEOUT_VALUE) + { + return HAL_TIMEOUT; + } + } + + /* Set HSITRIM[6:0] bits to the reset value */ + SET_BIT(RCC->HSICFGR, RCC_HSICFGR_HSITRIM_6); + + /* Reset CFGR register */ + CLEAR_REG(RCC->CFGR); + + /* Update the SystemCoreClock and SystemD2Clock global variables */ + SystemCoreClock = HSI_VALUE; + SystemD2Clock = HSI_VALUE; + + /* Adapt Systick interrupt period */ + if(HAL_InitTick(uwTickPrio) != HAL_OK) + { + return HAL_ERROR; + } + + /* Get Start Tick */ + tickstart = HAL_GetTick(); + + /* Wait till clock switch is ready */ + while (READ_BIT(RCC->CFGR, RCC_CFGR_SWS) != 0U) + { + if ((HAL_GetTick() - tickstart) > CLOCKSWITCH_TIMEOUT_VALUE) + { + return HAL_TIMEOUT; + } + } + + /* Get Start Tick */ + tickstart = HAL_GetTick(); + + /* Reset CSION, CSIKERON, HSEON, HSI48ON, HSECSSON, HSIDIV bits */ + CLEAR_BIT(RCC->CR, RCC_CR_HSEON | RCC_CR_HSIKERON| RCC_CR_HSIDIV| RCC_CR_HSIDIVF| RCC_CR_CSION | RCC_CR_CSIKERON \ + | RCC_CR_HSI48ON | RCC_CR_CSSHSEON); + + /* Wait till HSE is disabled */ + while (READ_BIT(RCC->CR, RCC_CR_HSERDY) != 0U) + { + if ((HAL_GetTick() - tickstart) > HSE_TIMEOUT_VALUE) + { + return HAL_TIMEOUT; + } + } + + /* Get Start Tick */ + tickstart = HAL_GetTick(); + + /* Clear PLLON bit */ + CLEAR_BIT(RCC->CR, RCC_CR_PLL1ON); + + /* Wait till PLL is disabled */ + while (READ_BIT(RCC->CR, RCC_CR_PLL1RDY) != 0U) + { + if ((HAL_GetTick() - tickstart) > PLL_TIMEOUT_VALUE) + { + return HAL_TIMEOUT; + } + } + + /* Get Start Tick */ + tickstart = HAL_GetTick(); + + /* Reset PLL2ON bit */ + CLEAR_BIT(RCC->CR, RCC_CR_PLL2ON); + + /* Wait till PLL2 is disabled */ + while (READ_BIT(RCC->CR, RCC_CR_PLL2RDY) != 0U) + { + if ((HAL_GetTick() - tickstart) > PLL_TIMEOUT_VALUE) + { + return HAL_TIMEOUT; + } + } + + /* Get Start Tick */ + tickstart = HAL_GetTick(); + + /* Reset PLL3 bit */ + CLEAR_BIT(RCC->CR, RCC_CR_PLL3ON); + + /* Wait till PLL3 is disabled */ + while (READ_BIT(RCC->CR, RCC_CR_PLL3RDY) != 0U) + { + if ((HAL_GetTick() - tickstart) > PLL_TIMEOUT_VALUE) + { + return HAL_TIMEOUT; + } + } + +#if defined(RCC_D1CFGR_HPRE) + /* Reset D1CFGR register */ + CLEAR_REG(RCC->D1CFGR); + + /* Reset D2CFGR register */ + CLEAR_REG(RCC->D2CFGR); + + /* Reset D3CFGR register */ + CLEAR_REG(RCC->D3CFGR); +#else + /* Reset CDCFGR1 register */ + CLEAR_REG(RCC->CDCFGR1); + + /* Reset CDCFGR2 register */ + CLEAR_REG(RCC->CDCFGR2); + + /* Reset SRDCFGR register */ + CLEAR_REG(RCC->SRDCFGR); +#endif + + /* Reset PLLCKSELR register to default value */ + RCC->PLLCKSELR= RCC_PLLCKSELR_DIVM1_5|RCC_PLLCKSELR_DIVM2_5|RCC_PLLCKSELR_DIVM3_5; + + /* Reset PLLCFGR register to default value */ + WRITE_REG(RCC->PLLCFGR, 0x01FF0000U); + + /* Reset PLL1DIVR register to default value */ + WRITE_REG(RCC->PLL1DIVR,0x01010280U); + + /* Reset PLL1FRACR register */ + CLEAR_REG(RCC->PLL1FRACR); + + /* Reset PLL2DIVR register to default value */ + WRITE_REG(RCC->PLL2DIVR,0x01010280U); + + /* Reset PLL2FRACR register */ + CLEAR_REG(RCC->PLL2FRACR); + + /* Reset PLL3DIVR register to default value */ + WRITE_REG(RCC->PLL3DIVR,0x01010280U); + + /* Reset PLL3FRACR register */ + CLEAR_REG(RCC->PLL3FRACR); + + /* Reset HSEBYP bit */ + CLEAR_BIT(RCC->CR, RCC_CR_HSEBYP); + + /* Disable all interrupts */ + CLEAR_REG(RCC->CIER); + + /* Clear all interrupts flags */ + WRITE_REG(RCC->CICR,0xFFFFFFFFU); + + /* Reset all RSR flags */ + SET_BIT(RCC->RSR, RCC_RSR_RMVF); + + /* Decreasing the number of wait states because of lower CPU frequency */ + if(FLASH_LATENCY_DEFAULT < __HAL_FLASH_GET_LATENCY()) + { + /* Program the new number of wait states to the LATENCY bits in the FLASH_ACR register */ + __HAL_FLASH_SET_LATENCY(FLASH_LATENCY_DEFAULT); + + /* Check that the new number of wait states is taken into account to access the Flash + memory by reading the FLASH_ACR register */ + if(__HAL_FLASH_GET_LATENCY() != FLASH_LATENCY_DEFAULT) + { + return HAL_ERROR; + } + +} + + return HAL_OK; +} + +/** + * @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 Transitions LSE Bypass to LSE On and LSE On to LSE Bypass are not + * supported by this function. 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 function. User should request a transition to HSE Off + * first and then HSE On or HSE Bypass. + * @retval HAL status + */ +__weak HAL_StatusTypeDef HAL_RCC_OscConfig(RCC_OscInitTypeDef *RCC_OscInitStruct) +{ + uint32_t tickstart; + uint32_t temp1_pllckcfg, temp2_pllckcfg; + + /* Check Null pointer */ + if(RCC_OscInitStruct == NULL) + { + return HAL_ERROR; + } + + /* Check the parameters */ + 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)); + + const uint32_t temp_sysclksrc = __HAL_RCC_GET_SYSCLK_SOURCE(); + const uint32_t temp_pllckselr = RCC->PLLCKSELR; + /* When the HSE is used as system clock or clock source for PLL in these cases HSE will not disabled */ + if((temp_sysclksrc == RCC_CFGR_SWS_HSE) || ((temp_sysclksrc == RCC_CFGR_SWS_PLL1) && ((temp_pllckselr & RCC_PLLCKSELR_PLLSRC) == RCC_PLLCKSELR_PLLSRC_HSE))) + { + if((__HAL_RCC_GET_FLAG(RCC_FLAG_HSERDY) != 0U) && (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) == 0U) + { + if((uint32_t) (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) != 0U) + { + if((uint32_t) (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_HSICALIBRATION_VALUE(RCC_OscInitStruct->HSICalibrationValue)); + + /* When the HSI is used as system clock it will not be disabled */ + const uint32_t temp_sysclksrc = __HAL_RCC_GET_SYSCLK_SOURCE(); + const uint32_t temp_pllckselr = RCC->PLLCKSELR; + if((temp_sysclksrc == RCC_CFGR_SWS_HSI) || ((temp_sysclksrc == RCC_CFGR_SWS_PLL1) && ((temp_pllckselr & RCC_PLLCKSELR_PLLSRC) == RCC_PLLCKSELR_PLLSRC_HSI))) + { + /* When HSI is used as system clock it will not be disabled */ + if((__HAL_RCC_GET_FLAG(RCC_FLAG_HSIRDY) != 0U) && (RCC_OscInitStruct->HSIState == RCC_HSI_OFF)) + { + 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, HSIDIV2,HSIDIV4, or HSIDIV8) */ + __HAL_RCC_HSI_CONFIG(RCC_OscInitStruct->HSIState); + + /* Get Start Tick*/ + tickstart = HAL_GetTick(); + + /* Wait till HSI is ready */ + while(__HAL_RCC_GET_FLAG(RCC_FLAG_HSIRDY) == 0U) + { + 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) != 0U) + { + if((HAL_GetTick() - tickstart ) > HSI_TIMEOUT_VALUE) + { + return HAL_TIMEOUT; + } + } + } + } + } + /*----------------------------- CSI Configuration --------------------------*/ + if(((RCC_OscInitStruct->OscillatorType) & RCC_OSCILLATORTYPE_CSI) == RCC_OSCILLATORTYPE_CSI) + { + /* Check the parameters */ + assert_param(IS_RCC_CSI(RCC_OscInitStruct->CSIState)); + assert_param(IS_RCC_CSICALIBRATION_VALUE(RCC_OscInitStruct->CSICalibrationValue)); + + /* When the CSI is used as system clock it will not disabled */ + const uint32_t temp_sysclksrc = __HAL_RCC_GET_SYSCLK_SOURCE(); + const uint32_t temp_pllckselr = RCC->PLLCKSELR; + if((temp_sysclksrc == RCC_CFGR_SWS_CSI) || ((temp_sysclksrc == RCC_CFGR_SWS_PLL1) && ((temp_pllckselr & RCC_PLLCKSELR_PLLSRC) == RCC_PLLCKSELR_PLLSRC_CSI))) + { + /* When CSI is used as system clock it will not disabled */ + if((__HAL_RCC_GET_FLAG(RCC_FLAG_CSIRDY) != 0U) && (RCC_OscInitStruct->CSIState != RCC_CSI_ON)) + { + return HAL_ERROR; + } + /* Otherwise, just the calibration is allowed */ + else + { + /* Adjusts the Internal High Speed oscillator (CSI) calibration value.*/ + __HAL_RCC_CSI_CALIBRATIONVALUE_ADJUST(RCC_OscInitStruct->CSICalibrationValue); + } + } + else + { + /* Check the CSI State */ + if((RCC_OscInitStruct->CSIState)!= RCC_CSI_OFF) + { + /* Enable the Internal High Speed oscillator (CSI). */ + __HAL_RCC_CSI_ENABLE(); + + /* Get Start Tick*/ + tickstart = HAL_GetTick(); + + /* Wait till CSI is ready */ + while(__HAL_RCC_GET_FLAG(RCC_FLAG_CSIRDY) == 0U) + { + if((HAL_GetTick() - tickstart ) > CSI_TIMEOUT_VALUE) + { + return HAL_TIMEOUT; + } + } + + /* Adjusts the Internal High Speed oscillator (CSI) calibration value.*/ + __HAL_RCC_CSI_CALIBRATIONVALUE_ADJUST(RCC_OscInitStruct->CSICalibrationValue); + } + else + { + /* Disable the Internal High Speed oscillator (CSI). */ + __HAL_RCC_CSI_DISABLE(); + + /* Get Start Tick*/ + tickstart = HAL_GetTick(); + + /* Wait till CSI is disabled */ + while(__HAL_RCC_GET_FLAG(RCC_FLAG_CSIRDY) != 0U) + { + if((HAL_GetTick() - tickstart ) > CSI_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) == 0U) + { + if((HAL_GetTick() - tickstart ) > LSI_TIMEOUT_VALUE) + { + return HAL_TIMEOUT; + } + } + } + else + { + /* Disable the Internal Low Speed oscillator (LSI). */ + __HAL_RCC_LSI_DISABLE(); + + /* Get Start Tick*/ + tickstart = HAL_GetTick(); + + /* Wait till LSI is ready */ + while(__HAL_RCC_GET_FLAG(RCC_FLAG_LSIRDY) != 0U) + { + if((HAL_GetTick() - tickstart ) > LSI_TIMEOUT_VALUE) + { + return HAL_TIMEOUT; + } + } + } + } + + /*------------------------------ HSI48 Configuration -------------------------*/ + if(((RCC_OscInitStruct->OscillatorType) & RCC_OSCILLATORTYPE_HSI48) == RCC_OSCILLATORTYPE_HSI48) + { + /* Check the parameters */ + assert_param(IS_RCC_HSI48(RCC_OscInitStruct->HSI48State)); + + /* Check the HSI48 State */ + if((RCC_OscInitStruct->HSI48State)!= RCC_HSI48_OFF) + { + /* Enable the Internal Low Speed oscillator (HSI48). */ + __HAL_RCC_HSI48_ENABLE(); + + /* Get time-out */ + tickstart = HAL_GetTick(); + + /* Wait till HSI48 is ready */ + while(__HAL_RCC_GET_FLAG(RCC_FLAG_HSI48RDY) == 0U) + { + if((HAL_GetTick() - tickstart ) > HSI48_TIMEOUT_VALUE) + { + return HAL_TIMEOUT; + } + } + } + else + { + /* Disable the Internal Low Speed oscillator (HSI48). */ + __HAL_RCC_HSI48_DISABLE(); + + /* Get time-out */ + tickstart = HAL_GetTick(); + + /* Wait till HSI48 is ready */ + while(__HAL_RCC_GET_FLAG(RCC_FLAG_HSI48RDY) != 0U) + { + if((HAL_GetTick() - tickstart ) > HSI48_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 write access to Backup domain */ + PWR->CR1 |= PWR_CR1_DBP; + + /* Wait for Backup domain Write protection disable */ + tickstart = HAL_GetTick(); + + while((PWR->CR1 & PWR_CR1_DBP) == 0U) + { + 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) == 0U) + { + 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) != 0U) + { + if((HAL_GetTick() - tickstart ) > RCC_LSE_TIMEOUT_VALUE) + { + return HAL_TIMEOUT; + } + } + } + } + /*-------------------------------- 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_CFGR_SWS_PLL1) + { + if((RCC_OscInitStruct->PLL.PLLState) == RCC_PLL_ON) + { + /* Check the parameters */ + assert_param(IS_RCC_PLLSOURCE(RCC_OscInitStruct->PLL.PLLSource)); + assert_param(IS_RCC_PLLM_VALUE(RCC_OscInitStruct->PLL.PLLM)); + assert_param(IS_RCC_PLLN_VALUE(RCC_OscInitStruct->PLL.PLLN)); + assert_param(IS_RCC_PLLP_VALUE(RCC_OscInitStruct->PLL.PLLP)); + assert_param(IS_RCC_PLLQ_VALUE(RCC_OscInitStruct->PLL.PLLQ)); + assert_param(IS_RCC_PLLR_VALUE(RCC_OscInitStruct->PLL.PLLR)); + assert_param(IS_RCC_PLLFRACN_VALUE(RCC_OscInitStruct->PLL.PLLFRACN)); + + /* 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) != 0U) + { + if((HAL_GetTick() - tickstart ) > PLL_TIMEOUT_VALUE) + { + return HAL_TIMEOUT; + } + } + + /* Configure the main PLL clock source, multiplication and division factors. */ + __HAL_RCC_PLL_CONFIG(RCC_OscInitStruct->PLL.PLLSource, + RCC_OscInitStruct->PLL.PLLM, + RCC_OscInitStruct->PLL.PLLN, + RCC_OscInitStruct->PLL.PLLP, + RCC_OscInitStruct->PLL.PLLQ, + RCC_OscInitStruct->PLL.PLLR); + + /* Disable PLLFRACN . */ + __HAL_RCC_PLLFRACN_DISABLE(); + + /* Configure PLL PLL1FRACN */ + __HAL_RCC_PLLFRACN_CONFIG(RCC_OscInitStruct->PLL.PLLFRACN); + + /* Select PLL1 input reference frequency range: VCI */ + __HAL_RCC_PLL_VCIRANGE(RCC_OscInitStruct->PLL.PLLRGE) ; + + /* Select PLL1 output frequency range : VCO */ + __HAL_RCC_PLL_VCORANGE(RCC_OscInitStruct->PLL.PLLVCOSEL) ; + + /* Enable PLL System Clock output. */ + __HAL_RCC_PLLCLKOUT_ENABLE(RCC_PLL1_DIVP); + + /* Enable PLL1Q Clock output. */ + __HAL_RCC_PLLCLKOUT_ENABLE(RCC_PLL1_DIVQ); + + /* Enable PLL1R Clock output. */ + __HAL_RCC_PLLCLKOUT_ENABLE(RCC_PLL1_DIVR); + + /* Enable PLL1FRACN . */ + __HAL_RCC_PLLFRACN_ENABLE(); + + /* 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) == 0U) + { + 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) != 0U) + { + if((HAL_GetTick() - tickstart ) > PLL_TIMEOUT_VALUE) + { + return HAL_TIMEOUT; + } + } + } + } + else + { + /* Do not return HAL_ERROR if request repeats the current configuration */ + temp1_pllckcfg = RCC->PLLCKSELR; + temp2_pllckcfg = RCC->PLL1DIVR; + if(((RCC_OscInitStruct->PLL.PLLState) == RCC_PLL_OFF) || + (READ_BIT(temp1_pllckcfg, RCC_PLLCKSELR_PLLSRC) != RCC_OscInitStruct->PLL.PLLSource) || + ((READ_BIT(temp1_pllckcfg, RCC_PLLCKSELR_DIVM1) >> RCC_PLLCKSELR_DIVM1_Pos) != RCC_OscInitStruct->PLL.PLLM) || + (READ_BIT(temp2_pllckcfg, RCC_PLL1DIVR_N1) != (RCC_OscInitStruct->PLL.PLLN - 1U)) || + ((READ_BIT(temp2_pllckcfg, RCC_PLL1DIVR_P1) >> RCC_PLL1DIVR_P1_Pos) != (RCC_OscInitStruct->PLL.PLLP - 1U)) || + ((READ_BIT(temp2_pllckcfg, RCC_PLL1DIVR_Q1) >> RCC_PLL1DIVR_Q1_Pos) != (RCC_OscInitStruct->PLL.PLLQ - 1U)) || + ((READ_BIT(temp2_pllckcfg, RCC_PLL1DIVR_R1) >> RCC_PLL1DIVR_R1_Pos) != (RCC_OscInitStruct->PLL.PLLR - 1U))) + { + 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, this parameter depend on device selected + * + * @note The SystemCoreClock CMSIS variable is used to store System Core Clock Frequency + * and updated by HAL_InitTick() 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 HAL_RCC_GetClockConfig() function to know which clock is + * currently used as system clock source. + * @note Depending on the device voltage range, the software has to set correctly + * D1CPRE[3:0] bits to ensure that Domain1 core clock not exceed the maximum allowed frequency + * (for more details refer to section above "Initialization/de-initialization functions") + * @retval None + */ +HAL_StatusTypeDef HAL_RCC_ClockConfig(RCC_ClkInitTypeDef *RCC_ClkInitStruct, uint32_t FLatency) +{ + HAL_StatusTypeDef halstatus; + uint32_t tickstart; + uint32_t common_system_clock; + + /* Check Null pointer */ + if(RCC_ClkInitStruct == NULL) + { + return HAL_ERROR; + } + + /* Check the parameters */ + 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) and the supply voltage of the device. */ + + /* Increasing the CPU frequency */ + if(FLatency > __HAL_FLASH_GET_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(__HAL_FLASH_GET_LATENCY() != FLatency) + { + return HAL_ERROR; + } + + } + + /* Increasing the BUS frequency divider */ + /*-------------------------- D1PCLK1/CDPCLK1 Configuration ---------------------------*/ + if(((RCC_ClkInitStruct->ClockType) & RCC_CLOCKTYPE_D1PCLK1) == RCC_CLOCKTYPE_D1PCLK1) + { +#if defined (RCC_D1CFGR_D1PPRE) + if((RCC_ClkInitStruct->APB3CLKDivider) > (RCC->D1CFGR & RCC_D1CFGR_D1PPRE)) + { + assert_param(IS_RCC_D1PCLK1(RCC_ClkInitStruct->APB3CLKDivider)); + MODIFY_REG(RCC->D1CFGR, RCC_D1CFGR_D1PPRE, RCC_ClkInitStruct->APB3CLKDivider); + } +#else + if((RCC_ClkInitStruct->APB3CLKDivider) > (RCC->CDCFGR1 & RCC_CDCFGR1_CDPPRE)) + { + assert_param(IS_RCC_CDPCLK1(RCC_ClkInitStruct->APB3CLKDivider)); + MODIFY_REG(RCC->CDCFGR1, RCC_CDCFGR1_CDPPRE, RCC_ClkInitStruct->APB3CLKDivider); + } +#endif + } + + /*-------------------------- PCLK1 Configuration ---------------------------*/ + if(((RCC_ClkInitStruct->ClockType) & RCC_CLOCKTYPE_PCLK1) == RCC_CLOCKTYPE_PCLK1) + { +#if defined (RCC_D2CFGR_D2PPRE1) + if((RCC_ClkInitStruct->APB1CLKDivider) > (RCC->D2CFGR & RCC_D2CFGR_D2PPRE1)) + { + assert_param(IS_RCC_PCLK1(RCC_ClkInitStruct->APB1CLKDivider)); + MODIFY_REG(RCC->D2CFGR, RCC_D2CFGR_D2PPRE1, (RCC_ClkInitStruct->APB1CLKDivider)); + } +#else + if((RCC_ClkInitStruct->APB1CLKDivider) > (RCC->CDCFGR2 & RCC_CDCFGR2_CDPPRE1)) + { + assert_param(IS_RCC_PCLK1(RCC_ClkInitStruct->APB1CLKDivider)); + MODIFY_REG(RCC->CDCFGR2, RCC_CDCFGR2_CDPPRE1, (RCC_ClkInitStruct->APB1CLKDivider)); + } +#endif + } + /*-------------------------- PCLK2 Configuration ---------------------------*/ + if(((RCC_ClkInitStruct->ClockType) & RCC_CLOCKTYPE_PCLK2) == RCC_CLOCKTYPE_PCLK2) + { +#if defined(RCC_D2CFGR_D2PPRE2) + if((RCC_ClkInitStruct->APB2CLKDivider) > (RCC->D2CFGR & RCC_D2CFGR_D2PPRE2)) + { + assert_param(IS_RCC_PCLK2(RCC_ClkInitStruct->APB2CLKDivider)); + MODIFY_REG(RCC->D2CFGR, RCC_D2CFGR_D2PPRE2, (RCC_ClkInitStruct->APB2CLKDivider)); + } +#else + if((RCC_ClkInitStruct->APB2CLKDivider) > (RCC->CDCFGR2 & RCC_CDCFGR2_CDPPRE2)) + { + assert_param(IS_RCC_PCLK2(RCC_ClkInitStruct->APB2CLKDivider)); + MODIFY_REG(RCC->CDCFGR2, RCC_CDCFGR2_CDPPRE2, (RCC_ClkInitStruct->APB2CLKDivider)); + } +#endif + } + + /*-------------------------- D3PCLK1 Configuration ---------------------------*/ + if(((RCC_ClkInitStruct->ClockType) & RCC_CLOCKTYPE_D3PCLK1) == RCC_CLOCKTYPE_D3PCLK1) + { +#if defined(RCC_D3CFGR_D3PPRE) + if((RCC_ClkInitStruct->APB4CLKDivider) > (RCC->D3CFGR & RCC_D3CFGR_D3PPRE)) + { + assert_param(IS_RCC_D3PCLK1(RCC_ClkInitStruct->APB4CLKDivider)); + MODIFY_REG(RCC->D3CFGR, RCC_D3CFGR_D3PPRE, (RCC_ClkInitStruct->APB4CLKDivider) ); + } +#else + if((RCC_ClkInitStruct->APB4CLKDivider) > (RCC->SRDCFGR & RCC_SRDCFGR_SRDPPRE)) + { + assert_param(IS_RCC_D3PCLK1(RCC_ClkInitStruct->APB4CLKDivider)); + MODIFY_REG(RCC->SRDCFGR, RCC_SRDCFGR_SRDPPRE, (RCC_ClkInitStruct->APB4CLKDivider) ); + } +#endif + } + + /*-------------------------- HCLK Configuration --------------------------*/ + if(((RCC_ClkInitStruct->ClockType) & RCC_CLOCKTYPE_HCLK) == RCC_CLOCKTYPE_HCLK) + { +#if defined (RCC_D1CFGR_HPRE) + if((RCC_ClkInitStruct->AHBCLKDivider) > (RCC->D1CFGR & RCC_D1CFGR_HPRE)) + { + /* Set the new HCLK clock divider */ + assert_param(IS_RCC_HCLK(RCC_ClkInitStruct->AHBCLKDivider)); + MODIFY_REG(RCC->D1CFGR, RCC_D1CFGR_HPRE, RCC_ClkInitStruct->AHBCLKDivider); + } +#else + if((RCC_ClkInitStruct->AHBCLKDivider) > (RCC->CDCFGR1 & RCC_CDCFGR1_HPRE)) + { + /* Set the new HCLK clock divider */ + assert_param(IS_RCC_HCLK(RCC_ClkInitStruct->AHBCLKDivider)); + MODIFY_REG(RCC->CDCFGR1, RCC_CDCFGR1_HPRE, RCC_ClkInitStruct->AHBCLKDivider); + } +#endif + } + + /*------------------------- SYSCLK Configuration -------------------------*/ + if(((RCC_ClkInitStruct->ClockType) & RCC_CLOCKTYPE_SYSCLK) == RCC_CLOCKTYPE_SYSCLK) + { + assert_param(IS_RCC_SYSCLK(RCC_ClkInitStruct->SYSCLKDivider)); + assert_param(IS_RCC_SYSCLKSOURCE(RCC_ClkInitStruct->SYSCLKSource)); +#if defined(RCC_D1CFGR_D1CPRE) + MODIFY_REG(RCC->D1CFGR, RCC_D1CFGR_D1CPRE, RCC_ClkInitStruct->SYSCLKDivider); +#else + MODIFY_REG(RCC->CDCFGR1, RCC_CDCFGR1_CDCPRE, RCC_ClkInitStruct->SYSCLKDivider); +#endif + /* 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) == 0U) + { + 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) == 0U) + { + return HAL_ERROR; + } + } + /* CSI is selected as System Clock Source */ + else if(RCC_ClkInitStruct->SYSCLKSource == RCC_SYSCLKSOURCE_CSI) + { + /* Check the PLL ready flag */ + if(__HAL_RCC_GET_FLAG(RCC_FLAG_CSIRDY) == 0U) + { + return HAL_ERROR; + } + } + /* HSI is selected as System Clock Source */ + else + { + /* Check the HSI ready flag */ + if(__HAL_RCC_GET_FLAG(RCC_FLAG_HSIRDY) == 0U) + { + return HAL_ERROR; + } + } + MODIFY_REG(RCC->CFGR, RCC_CFGR_SW, RCC_ClkInitStruct->SYSCLKSource); + + /* Get Start Tick*/ + tickstart = HAL_GetTick(); + + while (__HAL_RCC_GET_SYSCLK_SOURCE() != (RCC_ClkInitStruct->SYSCLKSource << RCC_CFGR_SWS_Pos)) + { + if((HAL_GetTick() - tickstart ) > CLOCKSWITCH_TIMEOUT_VALUE) + { + return HAL_TIMEOUT; + } + } + + } + + /* Decreasing the BUS frequency divider */ + /*-------------------------- HCLK Configuration --------------------------*/ + if(((RCC_ClkInitStruct->ClockType) & RCC_CLOCKTYPE_HCLK) == RCC_CLOCKTYPE_HCLK) + { +#if defined(RCC_D1CFGR_HPRE) + if((RCC_ClkInitStruct->AHBCLKDivider) < (RCC->D1CFGR & RCC_D1CFGR_HPRE)) + { + /* Set the new HCLK clock divider */ + assert_param(IS_RCC_HCLK(RCC_ClkInitStruct->AHBCLKDivider)); + MODIFY_REG(RCC->D1CFGR, RCC_D1CFGR_HPRE, RCC_ClkInitStruct->AHBCLKDivider); + } +#else + if((RCC_ClkInitStruct->AHBCLKDivider) < (RCC->CDCFGR1 & RCC_CDCFGR1_HPRE)) + { + /* Set the new HCLK clock divider */ + assert_param(IS_RCC_HCLK(RCC_ClkInitStruct->AHBCLKDivider)); + MODIFY_REG(RCC->CDCFGR1, RCC_CDCFGR1_HPRE, RCC_ClkInitStruct->AHBCLKDivider); + } +#endif + } + + /* Decreasing the number of wait states because of lower CPU frequency */ + if(FLatency < __HAL_FLASH_GET_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(__HAL_FLASH_GET_LATENCY() != FLatency) + { + return HAL_ERROR; + } + } + + /*-------------------------- D1PCLK1/CDPCLK Configuration ---------------------------*/ + if(((RCC_ClkInitStruct->ClockType) & RCC_CLOCKTYPE_D1PCLK1) == RCC_CLOCKTYPE_D1PCLK1) + { +#if defined(RCC_D1CFGR_D1PPRE) + if((RCC_ClkInitStruct->APB3CLKDivider) < (RCC->D1CFGR & RCC_D1CFGR_D1PPRE)) + { + assert_param(IS_RCC_D1PCLK1(RCC_ClkInitStruct->APB3CLKDivider)); + MODIFY_REG(RCC->D1CFGR, RCC_D1CFGR_D1PPRE, RCC_ClkInitStruct->APB3CLKDivider); + } +#else + if((RCC_ClkInitStruct->APB3CLKDivider) < (RCC->CDCFGR1 & RCC_CDCFGR1_CDPPRE)) + { + assert_param(IS_RCC_CDPCLK1(RCC_ClkInitStruct->APB3CLKDivider)); + MODIFY_REG(RCC->CDCFGR1, RCC_CDCFGR1_CDPPRE, RCC_ClkInitStruct->APB3CLKDivider); + } +#endif + } + + /*-------------------------- PCLK1 Configuration ---------------------------*/ + if(((RCC_ClkInitStruct->ClockType) & RCC_CLOCKTYPE_PCLK1) == RCC_CLOCKTYPE_PCLK1) + { +#if defined(RCC_D2CFGR_D2PPRE1) + if((RCC_ClkInitStruct->APB1CLKDivider) < (RCC->D2CFGR & RCC_D2CFGR_D2PPRE1)) + { + assert_param(IS_RCC_PCLK1(RCC_ClkInitStruct->APB1CLKDivider)); + MODIFY_REG(RCC->D2CFGR, RCC_D2CFGR_D2PPRE1, (RCC_ClkInitStruct->APB1CLKDivider)); + } +#else + if((RCC_ClkInitStruct->APB1CLKDivider) < (RCC->CDCFGR2 & RCC_CDCFGR2_CDPPRE1)) + { + assert_param(IS_RCC_PCLK1(RCC_ClkInitStruct->APB1CLKDivider)); + MODIFY_REG(RCC->CDCFGR2, RCC_CDCFGR2_CDPPRE1, (RCC_ClkInitStruct->APB1CLKDivider)); + } +#endif + } + + /*-------------------------- PCLK2 Configuration ---------------------------*/ + if(((RCC_ClkInitStruct->ClockType) & RCC_CLOCKTYPE_PCLK2) == RCC_CLOCKTYPE_PCLK2) + { +#if defined (RCC_D2CFGR_D2PPRE2) + if((RCC_ClkInitStruct->APB2CLKDivider) < (RCC->D2CFGR & RCC_D2CFGR_D2PPRE2)) + { + assert_param(IS_RCC_PCLK2(RCC_ClkInitStruct->APB2CLKDivider)); + MODIFY_REG(RCC->D2CFGR, RCC_D2CFGR_D2PPRE2, (RCC_ClkInitStruct->APB2CLKDivider)); + } +#else + if((RCC_ClkInitStruct->APB2CLKDivider) < (RCC->CDCFGR2 & RCC_CDCFGR2_CDPPRE2)) + { + assert_param(IS_RCC_PCLK2(RCC_ClkInitStruct->APB2CLKDivider)); + MODIFY_REG(RCC->CDCFGR2, RCC_CDCFGR2_CDPPRE2, (RCC_ClkInitStruct->APB2CLKDivider)); + } +#endif + } + + /*-------------------------- D3PCLK1/SRDPCLK1 Configuration ---------------------------*/ + if(((RCC_ClkInitStruct->ClockType) & RCC_CLOCKTYPE_D3PCLK1) == RCC_CLOCKTYPE_D3PCLK1) + { +#if defined(RCC_D3CFGR_D3PPRE) + if((RCC_ClkInitStruct->APB4CLKDivider) < (RCC->D3CFGR & RCC_D3CFGR_D3PPRE)) + { + assert_param(IS_RCC_D3PCLK1(RCC_ClkInitStruct->APB4CLKDivider)); + MODIFY_REG(RCC->D3CFGR, RCC_D3CFGR_D3PPRE, (RCC_ClkInitStruct->APB4CLKDivider) ); + } +#else + if((RCC_ClkInitStruct->APB4CLKDivider) < (RCC->SRDCFGR & RCC_SRDCFGR_SRDPPRE)) + { + assert_param(IS_RCC_SRDPCLK1(RCC_ClkInitStruct->APB4CLKDivider)); + MODIFY_REG(RCC->SRDCFGR, RCC_SRDCFGR_SRDPPRE, (RCC_ClkInitStruct->APB4CLKDivider) ); + } +#endif + } + + /* Update the SystemCoreClock global variable */ +#if defined(RCC_D1CFGR_D1CPRE) + common_system_clock = HAL_RCC_GetSysClockFreq() >> ((D1CorePrescTable[(RCC->D1CFGR & RCC_D1CFGR_D1CPRE)>> RCC_D1CFGR_D1CPRE_Pos]) & 0x1FU); +#else + common_system_clock = HAL_RCC_GetSysClockFreq() >> ((D1CorePrescTable[(RCC->CDCFGR1 & RCC_CDCFGR1_CDCPRE)>> RCC_CDCFGR1_CDCPRE_Pos]) & 0x1FU); +#endif + +#if defined(RCC_D1CFGR_HPRE) + SystemD2Clock = (common_system_clock >> ((D1CorePrescTable[(RCC->D1CFGR & RCC_D1CFGR_HPRE)>> RCC_D1CFGR_HPRE_Pos]) & 0x1FU)); +#else + SystemD2Clock = (common_system_clock >> ((D1CorePrescTable[(RCC->CDCFGR1 & RCC_CDCFGR1_HPRE)>> RCC_CDCFGR1_HPRE_Pos]) & 0x1FU)); +#endif + +#if defined(DUAL_CORE) && defined(CORE_CM4) + SystemCoreClock = SystemD2Clock; +#else + SystemCoreClock = common_system_clock; +#endif /* DUAL_CORE && CORE_CM4 */ + + /* Configure the source of time base considering new system clocks settings*/ + halstatus = HAL_InitTick (uwTickPrio); + + return halstatus; +} + +/** + * @} + */ + +/** @defgroup RCC_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 MCO1 pin(PA8) or on MCO2 pin(PC9). + * @note PA8/PC9 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 RCC_MCO1: Clock source to output on MCO1 pin(PA8). + * @arg RCC_MCO2: Clock source to output on MCO2 pin(PC9). + * @param RCC_MCOSource: specifies the clock source to output. + * This parameter can be one of the following values: + * @arg RCC_MCO1SOURCE_HSI: HSI clock selected as MCO1 source + * @arg RCC_MCO1SOURCE_LSE: LSE clock selected as MCO1 source + * @arg RCC_MCO1SOURCE_HSE: HSE clock selected as MCO1 source + * @arg RCC_MCO1SOURCE_PLL1QCLK: PLL1Q clock selected as MCO1 source + * @arg RCC_MCO1SOURCE_HSI48: HSI48 (48MHZ) selected as MCO1 source + * @arg RCC_MCO2SOURCE_SYSCLK: System clock (SYSCLK) selected as MCO2 source + * @arg RCC_MCO2SOURCE_PLL2PCLK: PLL2P clock selected as MCO2 source + * @arg RCC_MCO2SOURCE_HSE: HSE clock selected as MCO2 source + * @arg RCC_MCO2SOURCE_PLLCLK: PLL1P clock selected as MCO2 source + * @arg RCC_MCO2SOURCE_CSICLK: CSI clock selected as MCO2 source + * @arg RCC_MCO2SOURCE_LSICLK: LSI clock selected as MCO2 source + * @param RCC_MCODiv: specifies the MCOx pre-scaler. + * This parameter can be one of the following values: + * @arg RCC_MCODIV_1 up to RCC_MCODIV_15 : divider applied to MCOx clock + * @retval None + */ +void HAL_RCC_MCOConfig(uint32_t RCC_MCOx, uint32_t RCC_MCOSource, uint32_t RCC_MCODiv) +{ + GPIO_InitTypeDef GPIO_InitStruct; + /* Check the parameters */ + assert_param(IS_RCC_MCO(RCC_MCOx)); + assert_param(IS_RCC_MCODIV(RCC_MCODiv)); + /* RCC_MCO1 */ + if(RCC_MCOx == RCC_MCO1) + { + assert_param(IS_RCC_MCO1SOURCE(RCC_MCOSource)); + + /* MCO1 Clock Enable */ + MCO1_CLK_ENABLE(); + + /* Configure the MCO1 pin in alternate function mode */ + GPIO_InitStruct.Pin = MCO1_PIN; + GPIO_InitStruct.Mode = GPIO_MODE_AF_PP; + GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH; + GPIO_InitStruct.Pull = GPIO_NOPULL; + GPIO_InitStruct.Alternate = GPIO_AF0_MCO; + HAL_GPIO_Init(MCO1_GPIO_PORT, &GPIO_InitStruct); + + /* Mask MCO1 and MCO1PRE[3:0] bits then Select MCO1 clock source and pre-scaler */ + MODIFY_REG(RCC->CFGR, (RCC_CFGR_MCO1 | RCC_CFGR_MCO1PRE), (RCC_MCOSource | RCC_MCODiv)); + } + else + { + assert_param(IS_RCC_MCO2SOURCE(RCC_MCOSource)); + + /* MCO2 Clock Enable */ + MCO2_CLK_ENABLE(); + + /* Configure the MCO2 pin in alternate function mode */ + GPIO_InitStruct.Pin = MCO2_PIN; + GPIO_InitStruct.Mode = GPIO_MODE_AF_PP; + GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH; + GPIO_InitStruct.Pull = GPIO_NOPULL; + GPIO_InitStruct.Alternate = GPIO_AF0_MCO; + HAL_GPIO_Init(MCO2_GPIO_PORT, &GPIO_InitStruct); + + /* Mask MCO2 and MCO2PRE[3:0] bits then Select MCO2 clock source and pre-scaler */ + MODIFY_REG(RCC->CFGR, (RCC_CFGR_MCO2 | RCC_CFGR_MCO2PRE), (RCC_MCOSource | (RCC_MCODiv << 7U))); + } +} + +/** + * @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-M NMI (Non-Mask-able Interrupt) exception vector. + * @retval None + */ +void HAL_RCC_EnableCSS(void) +{ + SET_BIT(RCC->CR, RCC_CR_CSSHSEON) ; +} + +/** + * @brief Disables the Clock Security System. + * @retval None + */ +void HAL_RCC_DisableCSS(void) +{ + CLEAR_BIT(RCC->CR, RCC_CR_CSSHSEON); +} + +/** + * @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 CSI, function returns values based on CSI_VALUE(*) + * @note If SYSCLK source is HSI, function returns values based on HSI_VALUE(**) + * @note If SYSCLK source is HSE, function returns values based on HSE_VALUE(***) + * @note If SYSCLK source is PLL, function returns values based on CSI_VALUE(*), + * HSI_VALUE(**) or HSE_VALUE(***) multiplied/divided by the PLL factors. + * @note (*) CSI_VALUE is a constant defined in stm32h7xx_hal_conf.h file (default value + * 4 MHz) but the real value may vary depending on the variations + * in voltage and temperature. + * @note (**) HSI_VALUE is a constant defined in stm32h7xx_hal_conf.h file (default value + * 64 MHz) but the real value may vary depending on the variations + * in voltage and temperature. + * @note (***) HSE_VALUE is a constant defined in stm32h7xx_hal_conf.h file (default value + * 25 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) +{ + uint32_t pllp, pllsource, pllm, pllfracen, hsivalue; + float_t fracn1, pllvco; + uint32_t sysclockfreq; + + /* Get SYSCLK source -------------------------------------------------------*/ + + switch (RCC->CFGR & RCC_CFGR_SWS) + { + case RCC_CFGR_SWS_HSI: /* HSI used as system clock source */ + + if (__HAL_RCC_GET_FLAG(RCC_FLAG_HSIDIV) != 0U) + { + sysclockfreq = (uint32_t) (HSI_VALUE >> (__HAL_RCC_GET_HSI_DIVIDER()>> 3)); + } + else + { + sysclockfreq = (uint32_t) HSI_VALUE; + } + + break; + + case RCC_CFGR_SWS_CSI: /* CSI used as system clock source */ + sysclockfreq = CSI_VALUE; + break; + + case RCC_CFGR_SWS_HSE: /* HSE used as system clock source */ + sysclockfreq = HSE_VALUE; + break; + + case RCC_CFGR_SWS_PLL1: /* PLL1 used as system clock source */ + + /* PLL_VCO = (HSE_VALUE or HSI_VALUE or CSI_VALUE/ PLLM) * PLLN + SYSCLK = PLL_VCO / PLLR + */ + pllsource = (RCC->PLLCKSELR & RCC_PLLCKSELR_PLLSRC); + pllm = ((RCC->PLLCKSELR & RCC_PLLCKSELR_DIVM1)>> 4) ; + pllfracen = ((RCC-> PLLCFGR & RCC_PLLCFGR_PLL1FRACEN)>>RCC_PLLCFGR_PLL1FRACEN_Pos); + fracn1 = (float_t)(uint32_t)(pllfracen* ((RCC->PLL1FRACR & RCC_PLL1FRACR_FRACN1)>> 3)); + + if (pllm != 0U) + { + switch (pllsource) + { + case RCC_PLLSOURCE_HSI: /* HSI used as PLL clock source */ + + if (__HAL_RCC_GET_FLAG(RCC_FLAG_HSIDIV) != 0U) + { + hsivalue= (HSI_VALUE >> (__HAL_RCC_GET_HSI_DIVIDER()>> 3)); + pllvco = ( (float_t)hsivalue / (float_t)pllm) * ((float_t)(uint32_t)(RCC->PLL1DIVR & RCC_PLL1DIVR_N1) + (fracn1/(float_t)0x2000) +(float_t)1 ); + } + else + { + pllvco = ((float_t)HSI_VALUE / (float_t)pllm) * ((float_t)(uint32_t)(RCC->PLL1DIVR & RCC_PLL1DIVR_N1) + (fracn1/(float_t)0x2000) +(float_t)1 ); + } + break; + + case RCC_PLLSOURCE_CSI: /* CSI used as PLL clock source */ + pllvco = ((float_t)CSI_VALUE / (float_t)pllm) * ((float_t)(uint32_t)(RCC->PLL1DIVR & RCC_PLL1DIVR_N1) + (fracn1/(float_t)0x2000) +(float_t)1 ); + break; + + case RCC_PLLSOURCE_HSE: /* HSE used as PLL clock source */ + pllvco = ((float_t)HSE_VALUE / (float_t)pllm) * ((float_t)(uint32_t)(RCC->PLL1DIVR & RCC_PLL1DIVR_N1) + (fracn1/(float_t)0x2000) +(float_t)1 ); + break; + + default: + pllvco = ((float_t)CSI_VALUE / (float_t)pllm) * ((float_t)(uint32_t)(RCC->PLL1DIVR & RCC_PLL1DIVR_N1) + (fracn1/(float_t)0x2000) +(float_t)1 ); + break; + } + pllp = (((RCC->PLL1DIVR & RCC_PLL1DIVR_P1) >>9) + 1U ) ; + sysclockfreq = (uint32_t)(float_t)(pllvco/(float_t)pllp); + } + else + { + sysclockfreq = 0U; + } + break; + + default: + sysclockfreq = CSI_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 SystemD2Clock CMSIS variable is used to store System domain2 Clock Frequency + * and updated within this function + * @retval HCLK frequency + */ +uint32_t HAL_RCC_GetHCLKFreq(void) +{ +uint32_t common_system_clock; + +#if defined(RCC_D1CFGR_D1CPRE) + common_system_clock = HAL_RCC_GetSysClockFreq() >> (D1CorePrescTable[(RCC->D1CFGR & RCC_D1CFGR_D1CPRE)>> RCC_D1CFGR_D1CPRE_Pos] & 0x1FU); +#else + common_system_clock = HAL_RCC_GetSysClockFreq() >> (D1CorePrescTable[(RCC->CDCFGR1 & RCC_CDCFGR1_CDCPRE)>> RCC_CDCFGR1_CDCPRE_Pos] & 0x1FU); +#endif + +#if defined(RCC_D1CFGR_HPRE) + SystemD2Clock = (common_system_clock >> ((D1CorePrescTable[(RCC->D1CFGR & RCC_D1CFGR_HPRE)>> RCC_D1CFGR_HPRE_Pos]) & 0x1FU)); +#else + SystemD2Clock = (common_system_clock >> ((D1CorePrescTable[(RCC->CDCFGR1 & RCC_CDCFGR1_HPRE)>> RCC_CDCFGR1_HPRE_Pos]) & 0x1FU)); +#endif + +#if defined(DUAL_CORE) && defined(CORE_CM4) + SystemCoreClock = SystemD2Clock; +#else + SystemCoreClock = common_system_clock; +#endif /* DUAL_CORE && CORE_CM4 */ + + return SystemD2Clock; +} + + +/** + * @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) +{ +#if defined (RCC_D2CFGR_D2PPRE1) + /* Get HCLK source and Compute PCLK1 frequency ---------------------------*/ + return (HAL_RCC_GetHCLKFreq() >> ((D1CorePrescTable[(RCC->D2CFGR & RCC_D2CFGR_D2PPRE1)>> RCC_D2CFGR_D2PPRE1_Pos]) & 0x1FU)); +#else + /* Get HCLK source and Compute PCLK1 frequency ---------------------------*/ + return (HAL_RCC_GetHCLKFreq() >> ((D1CorePrescTable[(RCC->CDCFGR2 & RCC_CDCFGR2_CDPPRE1)>> RCC_CDCFGR2_CDPPRE1_Pos]) & 0x1FU)); +#endif +} + + +/** + * @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 PCLK1 frequency + */ +uint32_t HAL_RCC_GetPCLK2Freq(void) +{ + /* Get HCLK source and Compute PCLK1 frequency ---------------------------*/ +#if defined(RCC_D2CFGR_D2PPRE2) + return (HAL_RCC_GetHCLKFreq() >> ((D1CorePrescTable[(RCC->D2CFGR & RCC_D2CFGR_D2PPRE2)>> RCC_D2CFGR_D2PPRE2_Pos]) & 0x1FU)); +#else + return (HAL_RCC_GetHCLKFreq() >> ((D1CorePrescTable[(RCC->CDCFGR2 & RCC_CDCFGR2_CDPPRE2)>> RCC_CDCFGR2_CDPPRE2_Pos]) & 0x1FU)); +#endif +} + +/** + * @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) +{ + /* Set all possible values for the Oscillator type parameter ---------------*/ + RCC_OscInitStruct->OscillatorType = RCC_OSCILLATORTYPE_HSE | RCC_OSCILLATORTYPE_HSI | RCC_OSCILLATORTYPE_CSI | \ + RCC_OSCILLATORTYPE_LSE | RCC_OSCILLATORTYPE_LSI| RCC_OSCILLATORTYPE_HSI48; + + /* Get the HSE configuration -----------------------------------------------*/ +#if defined(RCC_CR_HSEEXT) + if((RCC->CR &(RCC_CR_HSEBYP | RCC_CR_HSEEXT)) == RCC_CR_HSEBYP) + { + RCC_OscInitStruct->HSEState = RCC_HSE_BYPASS; + } + else if((RCC->CR &(RCC_CR_HSEBYP | RCC_CR_HSEEXT)) == (RCC_CR_HSEBYP | RCC_CR_HSEEXT)) + { + RCC_OscInitStruct->HSEState = RCC_HSE_BYPASS_DIGITAL; + } + else if((RCC->CR &RCC_CR_HSEON) == RCC_CR_HSEON) + { + RCC_OscInitStruct->HSEState = RCC_HSE_ON; + } + else + { + RCC_OscInitStruct->HSEState = RCC_HSE_OFF; + } +#else + 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; + } +#endif /* RCC_CR_HSEEXT */ + + /* Get the CSI configuration -----------------------------------------------*/ + if((RCC->CR &RCC_CR_CSION) == RCC_CR_CSION) + { + RCC_OscInitStruct->CSIState = RCC_CSI_ON; + } + else + { + RCC_OscInitStruct->CSIState = RCC_CSI_OFF; + } + +#if defined(RCC_VER_X) + if(HAL_GetREVID() <= REV_ID_Y) + { + RCC_OscInitStruct->CSICalibrationValue = (uint32_t)(READ_BIT(RCC->HSICFGR, HAL_RCC_REV_Y_CSITRIM_Msk) >> HAL_RCC_REV_Y_CSITRIM_Pos); + } + else + { + RCC_OscInitStruct->CSICalibrationValue = (uint32_t)(READ_BIT(RCC->CSICFGR, RCC_CSICFGR_CSITRIM) >> RCC_CSICFGR_CSITRIM_Pos); + } +#else + RCC_OscInitStruct->CSICalibrationValue = (uint32_t)(READ_BIT(RCC->CSICFGR, RCC_CSICFGR_CSITRIM) >> RCC_CSICFGR_CSITRIM_Pos); +#endif /*RCC_VER_X*/ + + /* 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; + } + +#if defined(RCC_VER_X) + if(HAL_GetREVID() <= REV_ID_Y) + { + RCC_OscInitStruct->HSICalibrationValue = (uint32_t)(READ_BIT(RCC->HSICFGR, HAL_RCC_REV_Y_HSITRIM_Msk) >> HAL_RCC_REV_Y_HSITRIM_Pos); + } + else + { + RCC_OscInitStruct->HSICalibrationValue = (uint32_t)(READ_BIT(RCC->HSICFGR, RCC_HSICFGR_HSITRIM) >> RCC_HSICFGR_HSITRIM_Pos); + } +#else + RCC_OscInitStruct->HSICalibrationValue = (uint32_t)(READ_BIT(RCC->HSICFGR, RCC_HSICFGR_HSITRIM) >> RCC_HSICFGR_HSITRIM_Pos); +#endif /*RCC_VER_X*/ + + /* Get the LSE configuration -----------------------------------------------*/ +#if defined(RCC_BDCR_LSEEXT) + if((RCC->BDCR &(RCC_BDCR_LSEBYP|RCC_BDCR_LSEEXT)) == RCC_BDCR_LSEBYP) + { + RCC_OscInitStruct->LSEState = RCC_LSE_BYPASS; + } + else if((RCC->BDCR &(RCC_BDCR_LSEBYP|RCC_BDCR_LSEEXT)) == (RCC_BDCR_LSEBYP|RCC_BDCR_LSEEXT)) + { + RCC_OscInitStruct->LSEState = RCC_LSE_BYPASS_DIGITAL; + } + else if((RCC->BDCR &RCC_BDCR_LSEON) == RCC_BDCR_LSEON) + { + RCC_OscInitStruct->LSEState = RCC_LSE_ON; + } + else + { + RCC_OscInitStruct->LSEState = RCC_LSE_OFF; + } +#else + 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; + } +#endif /* RCC_BDCR_LSEEXT */ + + /* 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 HSI48 configuration ---------------------------------------------*/ + if((RCC->CR & RCC_CR_HSI48ON) == RCC_CR_HSI48ON) + { + RCC_OscInitStruct->HSI48State = RCC_HSI48_ON; + } + else + { + RCC_OscInitStruct->HSI48State = RCC_HSI48_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->PLLCKSELR & RCC_PLLCKSELR_PLLSRC); + RCC_OscInitStruct->PLL.PLLM = (uint32_t)((RCC->PLLCKSELR & RCC_PLLCKSELR_DIVM1)>> RCC_PLLCKSELR_DIVM1_Pos); + RCC_OscInitStruct->PLL.PLLN = (uint32_t)((RCC->PLL1DIVR & RCC_PLL1DIVR_N1) >> RCC_PLL1DIVR_N1_Pos)+ 1U; + RCC_OscInitStruct->PLL.PLLR = (uint32_t)((RCC->PLL1DIVR & RCC_PLL1DIVR_R1) >> RCC_PLL1DIVR_R1_Pos)+ 1U; + RCC_OscInitStruct->PLL.PLLP = (uint32_t)((RCC->PLL1DIVR & RCC_PLL1DIVR_P1) >> RCC_PLL1DIVR_P1_Pos)+ 1U; + RCC_OscInitStruct->PLL.PLLQ = (uint32_t)((RCC->PLL1DIVR & RCC_PLL1DIVR_Q1) >> RCC_PLL1DIVR_Q1_Pos)+ 1U; + RCC_OscInitStruct->PLL.PLLRGE = (uint32_t)((RCC->PLLCFGR & RCC_PLLCFGR_PLL1RGE)); + RCC_OscInitStruct->PLL.PLLVCOSEL = (uint32_t)((RCC->PLLCFGR & RCC_PLLCFGR_PLL1VCOSEL) >> RCC_PLLCFGR_PLL1VCOSEL_Pos); + RCC_OscInitStruct->PLL.PLLFRACN = (uint32_t)(((RCC->PLL1FRACR & RCC_PLL1FRACR_FRACN1) >> RCC_PLL1FRACR_FRACN1_Pos)); +} + +/** + * @brief Configures the RCC_ClkInitStruct according to the internal + * RCC configuration registers. + * @param RCC_ClkInitStruct: pointer to an RCC_ClkInitTypeDef structure that + * will be configured. + * @param pFLatency: Pointer on the Flash Latency. + * @retval None + */ +void HAL_RCC_GetClockConfig(RCC_ClkInitTypeDef *RCC_ClkInitStruct, uint32_t *pFLatency) +{ + /* Set all possible values for the Clock type parameter --------------------*/ + RCC_ClkInitStruct->ClockType = RCC_CLOCKTYPE_SYSCLK | RCC_CLOCKTYPE_HCLK | RCC_CLOCKTYPE_D1PCLK1 | RCC_CLOCKTYPE_PCLK1 | + RCC_CLOCKTYPE_PCLK2 | RCC_CLOCKTYPE_D3PCLK1 ; + + /* Get the SYSCLK configuration --------------------------------------------*/ + RCC_ClkInitStruct->SYSCLKSource = (uint32_t)(RCC->CFGR & RCC_CFGR_SW); + +#if defined(RCC_D1CFGR_D1CPRE) + /* Get the SYSCLK configuration ----------------------------------------------*/ + RCC_ClkInitStruct->SYSCLKDivider = (uint32_t)(RCC->D1CFGR & RCC_D1CFGR_D1CPRE); + + /* Get the D1HCLK configuration ----------------------------------------------*/ + RCC_ClkInitStruct->AHBCLKDivider = (uint32_t)(RCC->D1CFGR & RCC_D1CFGR_HPRE); + + /* Get the APB3 configuration ----------------------------------------------*/ + RCC_ClkInitStruct->APB3CLKDivider = (uint32_t)(RCC->D1CFGR & RCC_D1CFGR_D1PPRE); + + /* Get the APB1 configuration ----------------------------------------------*/ + RCC_ClkInitStruct->APB1CLKDivider = (uint32_t)(RCC->D2CFGR & RCC_D2CFGR_D2PPRE1); + + /* Get the APB2 configuration ----------------------------------------------*/ + RCC_ClkInitStruct->APB2CLKDivider = (uint32_t)(RCC->D2CFGR & RCC_D2CFGR_D2PPRE2); + + /* Get the APB4 configuration ----------------------------------------------*/ + RCC_ClkInitStruct->APB4CLKDivider = (uint32_t)(RCC->D3CFGR & RCC_D3CFGR_D3PPRE); +#else + /* Get the SYSCLK configuration ----------------------------------------------*/ + RCC_ClkInitStruct->SYSCLKDivider = (uint32_t)(RCC->CDCFGR1 & RCC_CDCFGR1_CDCPRE); + + /* Get the D1HCLK configuration ----------------------------------------------*/ + RCC_ClkInitStruct->AHBCLKDivider = (uint32_t)(RCC->CDCFGR1 & RCC_CDCFGR1_HPRE); + + /* Get the APB3 configuration ----------------------------------------------*/ + RCC_ClkInitStruct->APB3CLKDivider = (uint32_t)(RCC->CDCFGR1 & RCC_CDCFGR1_CDPPRE); + + /* Get the APB1 configuration ----------------------------------------------*/ + RCC_ClkInitStruct->APB1CLKDivider = (uint32_t)(RCC->CDCFGR2 & RCC_CDCFGR2_CDPPRE1); + + /* Get the APB2 configuration ----------------------------------------------*/ + RCC_ClkInitStruct->APB2CLKDivider = (uint32_t)(RCC->CDCFGR2 & RCC_CDCFGR2_CDPPRE2); + + /* Get the APB4 configuration ----------------------------------------------*/ + RCC_ClkInitStruct->APB4CLKDivider = (uint32_t)(RCC->SRDCFGR & RCC_SRDCFGR_SRDPPRE); +#endif + + /* Get the Flash Wait State (Latency) configuration ------------------------*/ + *pFLatency = (uint32_t)(FLASH->ACR & FLASH_ACR_LATENCY); +} + +/** + * @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_CCSCallback(); + + /* 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_CCSCallback(void) +{ + /* NOTE : This function Should not be modified, when the callback is needed, + the HAL_RCC_CCSCallback could be implemented in the user file + */ +} + +/** + * @} + */ + +/** + * @} + */ + +#endif /* HAL_RCC_MODULE_ENABLED */ +/** + * @} + */ + +/** + * @} + */ + +/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/ -- cgit v1.2.3