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/** |
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****************************************************************************** |
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* @file stm32f0xx_hal_rcc_ex.c |
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* @author MCD Application Team |
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* @brief Extended RCC HAL module driver. |
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* This file provides firmware functions to manage the following |
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* functionalities RCC extension peripheral: |
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* + Extended Peripheral Control functions |
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* + Extended Clock Recovery System Control functions |
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* |
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****************************************************************************** |
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* @attention |
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* |
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* <h2><center>© COPYRIGHT(c) 2016 STMicroelectronics</center></h2> |
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* |
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* Redistribution and use in source and binary forms, with or without modification, |
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* are permitted provided that the following conditions are met: |
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* 1. Redistributions of source code must retain the above copyright notice, |
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* this list of conditions and the following disclaimer. |
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* 2. Redistributions in binary form must reproduce the above copyright notice, |
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* this list of conditions and the following disclaimer in the documentation |
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* and/or other materials provided with the distribution. |
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* 3. Neither the name of STMicroelectronics nor the names of its contributors |
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* may be used to endorse or promote products derived from this software |
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* without specific prior written permission. |
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* |
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE |
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR |
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER |
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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* |
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****************************************************************************** |
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*/ |
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/* Includes ------------------------------------------------------------------*/ |
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#include "stm32f0xx_hal.h" |
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/** @addtogroup STM32F0xx_HAL_Driver |
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* @{ |
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*/ |
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#ifdef HAL_RCC_MODULE_ENABLED |
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/** @defgroup RCCEx RCCEx |
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* @brief RCC Extension HAL module driver. |
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* @{ |
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*/ |
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/* Private typedef -----------------------------------------------------------*/ |
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/* Private define ------------------------------------------------------------*/ |
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#if defined(CRS) |
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/** @defgroup RCCEx_Private_Constants RCCEx Private Constants |
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* @{ |
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*/ |
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/* Bit position in register */ |
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#define CRS_CFGR_FELIM_BITNUMBER 16 |
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#define CRS_CR_TRIM_BITNUMBER 8 |
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#define CRS_ISR_FECAP_BITNUMBER 16 |
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/** |
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* @} |
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*/ |
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#endif /* CRS */ |
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/* Private macro -------------------------------------------------------------*/ |
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/** @defgroup RCCEx_Private_Macros RCCEx Private Macros |
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* @{ |
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*/ |
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/** |
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* @} |
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*/ |
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/* Private variables ---------------------------------------------------------*/ |
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/* Private function prototypes -----------------------------------------------*/ |
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/* Private functions ---------------------------------------------------------*/ |
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/** @defgroup RCCEx_Exported_Functions RCCEx Exported Functions |
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* @{ |
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*/ |
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/** @defgroup RCCEx_Exported_Functions_Group1 Extended Peripheral Control functions |
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* @brief Extended Peripheral Control functions |
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* |
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@verbatim |
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=============================================================================== |
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##### Extended Peripheral Control functions ##### |
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=============================================================================== |
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[..] |
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This subsection provides a set of functions allowing to control the RCC Clocks |
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frequencies. |
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[..] |
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(@) Important note: Care must be taken when HAL_RCCEx_PeriphCLKConfig() is used to |
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select the RTC clock source; in this case the Backup domain will be reset in |
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order to modify the RTC Clock source, as consequence RTC registers (including |
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the backup registers) are set to their reset values. |
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@endverbatim |
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* @{ |
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*/ |
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/** |
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* @brief Initializes the RCC extended peripherals clocks according to the specified |
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* parameters in the RCC_PeriphCLKInitTypeDef. |
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* @param PeriphClkInit pointer to an RCC_PeriphCLKInitTypeDef structure that |
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* contains the configuration information for the Extended Peripherals clocks |
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* (USART, RTC, I2C, CEC and USB). |
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* |
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* @note Care must be taken when @ref HAL_RCCEx_PeriphCLKConfig() is used to select |
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* the RTC clock source; in this case the Backup domain will be reset in |
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* order to modify the RTC Clock source, as consequence RTC registers (including |
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* the backup registers) and RCC_BDCR register are set to their reset values. |
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* |
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* @retval HAL status |
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*/ |
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HAL_StatusTypeDef HAL_RCCEx_PeriphCLKConfig(RCC_PeriphCLKInitTypeDef *PeriphClkInit) |
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{ |
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uint32_t tickstart = 0U; |
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uint32_t temp_reg = 0U; |
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/* Check the parameters */ |
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assert_param(IS_RCC_PERIPHCLOCK(PeriphClkInit->PeriphClockSelection)); |
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/*---------------------------- RTC configuration -------------------------------*/ |
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if(((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_RTC) == (RCC_PERIPHCLK_RTC)) |
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{ |
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/* check for RTC Parameters used to output RTCCLK */ |
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assert_param(IS_RCC_RTCCLKSOURCE(PeriphClkInit->RTCClockSelection)); |
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FlagStatus pwrclkchanged = RESET; |
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/* As soon as function is called to change RTC clock source, activation of the |
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power domain is done. */ |
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/* Requires to enable write access to Backup Domain of necessary */ |
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if(__HAL_RCC_PWR_IS_CLK_DISABLED()) |
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{ |
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__HAL_RCC_PWR_CLK_ENABLE(); |
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pwrclkchanged = SET; |
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} |
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if(HAL_IS_BIT_CLR(PWR->CR, PWR_CR_DBP)) |
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{ |
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/* Enable write access to Backup domain */ |
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SET_BIT(PWR->CR, PWR_CR_DBP); |
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/* Wait for Backup domain Write protection disable */ |
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tickstart = HAL_GetTick(); |
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while(HAL_IS_BIT_CLR(PWR->CR, PWR_CR_DBP)) |
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{ |
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if((HAL_GetTick() - tickstart) > RCC_DBP_TIMEOUT_VALUE) |
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{ |
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return HAL_TIMEOUT; |
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} |
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} |
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} |
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/* Reset the Backup domain only if the RTC Clock source selection is modified from reset value */ |
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temp_reg = (RCC->BDCR & RCC_BDCR_RTCSEL); |
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if((temp_reg != 0x00000000U) && (temp_reg != (PeriphClkInit->RTCClockSelection & RCC_BDCR_RTCSEL))) |
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{ |
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/* Store the content of BDCR register before the reset of Backup Domain */ |
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temp_reg = (RCC->BDCR & ~(RCC_BDCR_RTCSEL)); |
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/* RTC Clock selection can be changed only if the Backup Domain is reset */ |
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__HAL_RCC_BACKUPRESET_FORCE(); |
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__HAL_RCC_BACKUPRESET_RELEASE(); |
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/* Restore the Content of BDCR register */ |
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RCC->BDCR = temp_reg; |
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/* Wait for LSERDY if LSE was enabled */ |
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if (HAL_IS_BIT_SET(temp_reg, RCC_BDCR_LSEON)) |
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{ |
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/* Get Start Tick */ |
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tickstart = HAL_GetTick(); |
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/* Wait till LSE is ready */ |
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while(__HAL_RCC_GET_FLAG(RCC_FLAG_LSERDY) == RESET) |
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{ |
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if((HAL_GetTick() - tickstart) > RCC_LSE_TIMEOUT_VALUE) |
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{ |
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return HAL_TIMEOUT; |
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} |
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} |
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} |
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} |
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__HAL_RCC_RTC_CONFIG(PeriphClkInit->RTCClockSelection); |
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/* Require to disable power clock if necessary */ |
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if(pwrclkchanged == SET) |
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{ |
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__HAL_RCC_PWR_CLK_DISABLE(); |
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} |
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} |
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/*------------------------------- USART1 Configuration ------------------------*/ |
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if(((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_USART1) == RCC_PERIPHCLK_USART1) |
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{ |
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/* Check the parameters */ |
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assert_param(IS_RCC_USART1CLKSOURCE(PeriphClkInit->Usart1ClockSelection)); |
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/* Configure the USART1 clock source */ |
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__HAL_RCC_USART1_CONFIG(PeriphClkInit->Usart1ClockSelection); |
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} |
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#if defined(STM32F071xB) || defined(STM32F072xB) || defined(STM32F078xx)\ |
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|| defined(STM32F091xC) || defined(STM32F098xx) |
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/*----------------------------- USART2 Configuration --------------------------*/ |
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if(((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_USART2) == RCC_PERIPHCLK_USART2) |
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{ |
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/* Check the parameters */ |
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assert_param(IS_RCC_USART2CLKSOURCE(PeriphClkInit->Usart2ClockSelection)); |
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/* Configure the USART2 clock source */ |
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__HAL_RCC_USART2_CONFIG(PeriphClkInit->Usart2ClockSelection); |
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} |
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#endif /* STM32F071xB || STM32F072xB || STM32F078xx || */ |
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/* STM32F091xC || STM32F098xx */ |
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#if defined(STM32F091xC) || defined(STM32F098xx) |
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/*----------------------------- USART3 Configuration --------------------------*/ |
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if(((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_USART3) == RCC_PERIPHCLK_USART3) |
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{ |
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/* Check the parameters */ |
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assert_param(IS_RCC_USART3CLKSOURCE(PeriphClkInit->Usart3ClockSelection)); |
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/* Configure the USART3 clock source */ |
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__HAL_RCC_USART3_CONFIG(PeriphClkInit->Usart3ClockSelection); |
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} |
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#endif /* STM32F091xC || STM32F098xx */ |
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/*------------------------------ I2C1 Configuration ------------------------*/ |
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if(((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_I2C1) == RCC_PERIPHCLK_I2C1) |
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{ |
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/* Check the parameters */ |
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assert_param(IS_RCC_I2C1CLKSOURCE(PeriphClkInit->I2c1ClockSelection)); |
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/* Configure the I2C1 clock source */ |
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__HAL_RCC_I2C1_CONFIG(PeriphClkInit->I2c1ClockSelection); |
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} |
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#if defined(STM32F042x6) || defined(STM32F048xx) || defined(STM32F072xB) || defined(STM32F078xx) || defined(STM32F070xB) || defined(STM32F070x6) |
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/*------------------------------ USB Configuration ------------------------*/ |
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if(((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_USB) == RCC_PERIPHCLK_USB) |
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{ |
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/* Check the parameters */ |
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assert_param(IS_RCC_USBCLKSOURCE(PeriphClkInit->UsbClockSelection)); |
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/* Configure the USB clock source */ |
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__HAL_RCC_USB_CONFIG(PeriphClkInit->UsbClockSelection); |
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} |
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#endif /* STM32F042x6 || STM32F048xx || STM32F072xB || STM32F078xx || STM32F070xB || STM32F070x6 */ |
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#if defined(STM32F042x6) || defined(STM32F048xx)\ |
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|| defined(STM32F051x8) || defined(STM32F058xx)\ |
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|| defined(STM32F071xB) || defined(STM32F072xB) || defined(STM32F078xx)\ |
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|| defined(STM32F091xC) || defined(STM32F098xx) |
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/*------------------------------ CEC clock Configuration -------------------*/ |
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if(((PeriphClkInit->PeriphClockSelection) & RCC_PERIPHCLK_CEC) == RCC_PERIPHCLK_CEC) |
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{ |
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/* Check the parameters */ |
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assert_param(IS_RCC_CECCLKSOURCE(PeriphClkInit->CecClockSelection)); |
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/* Configure the CEC clock source */ |
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__HAL_RCC_CEC_CONFIG(PeriphClkInit->CecClockSelection); |
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} |
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#endif /* STM32F042x6 || STM32F048xx || */ |
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/* STM32F051x8 || STM32F058xx || */ |
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/* STM32F071xB || STM32F072xB || STM32F078xx || */ |
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/* STM32F091xC || STM32F098xx */ |
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return HAL_OK; |
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} |
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/** |
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* @brief Get the RCC_ClkInitStruct according to the internal |
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* RCC configuration registers. |
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* @param PeriphClkInit pointer to an RCC_PeriphCLKInitTypeDef structure that |
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* returns the configuration information for the Extended Peripherals clocks |
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* (USART, RTC, I2C, CEC and USB). |
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* @retval None |
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*/ |
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void HAL_RCCEx_GetPeriphCLKConfig(RCC_PeriphCLKInitTypeDef *PeriphClkInit) |
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{ |
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/* Set all possible values for the extended clock type parameter------------*/ |
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/* Common part first */ |
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PeriphClkInit->PeriphClockSelection = RCC_PERIPHCLK_USART1 | RCC_PERIPHCLK_I2C1 | RCC_PERIPHCLK_RTC; |
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/* Get the RTC configuration --------------------------------------------*/ |
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PeriphClkInit->RTCClockSelection = __HAL_RCC_GET_RTC_SOURCE(); |
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/* Get the USART1 clock configuration --------------------------------------------*/ |
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PeriphClkInit->Usart1ClockSelection = __HAL_RCC_GET_USART1_SOURCE(); |
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/* Get the I2C1 clock source -----------------------------------------------*/ |
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PeriphClkInit->I2c1ClockSelection = __HAL_RCC_GET_I2C1_SOURCE(); |
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#if defined(STM32F071xB) || defined(STM32F072xB) || defined(STM32F078xx)\ |
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|| defined(STM32F091xC) || defined(STM32F098xx) |
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PeriphClkInit->PeriphClockSelection |= RCC_PERIPHCLK_USART2; |
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/* Get the USART2 clock source ---------------------------------------------*/ |
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PeriphClkInit->Usart2ClockSelection = __HAL_RCC_GET_USART2_SOURCE(); |
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#endif /* STM32F071xB || STM32F072xB || STM32F078xx || */ |
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/* STM32F091xC || STM32F098xx */ |
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#if defined(STM32F091xC) || defined(STM32F098xx) |
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PeriphClkInit->PeriphClockSelection |= RCC_PERIPHCLK_USART3; |
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/* Get the USART3 clock source ---------------------------------------------*/ |
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PeriphClkInit->Usart3ClockSelection = __HAL_RCC_GET_USART3_SOURCE(); |
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#endif /* STM32F091xC || STM32F098xx */ |
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#if defined(STM32F042x6) || defined(STM32F048xx) || defined(STM32F072xB) || defined(STM32F078xx) || defined(STM32F070xB) || defined(STM32F070x6) |
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PeriphClkInit->PeriphClockSelection |= RCC_PERIPHCLK_USB; |
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/* Get the USB clock source ---------------------------------------------*/ |
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PeriphClkInit->UsbClockSelection = __HAL_RCC_GET_USB_SOURCE(); |
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#endif /* STM32F042x6 || STM32F048xx || STM32F072xB || STM32F078xx || STM32F070xB || STM32F070x6 */ |
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#if defined(STM32F042x6) || defined(STM32F048xx)\ |
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|| defined(STM32F051x8) || defined(STM32F058xx)\ |
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|| defined(STM32F071xB) || defined(STM32F072xB) || defined(STM32F078xx)\ |
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|| defined(STM32F091xC) || defined(STM32F098xx) |
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PeriphClkInit->PeriphClockSelection |= RCC_PERIPHCLK_CEC; |
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/* Get the CEC clock source ------------------------------------------------*/ |
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PeriphClkInit->CecClockSelection = __HAL_RCC_GET_CEC_SOURCE(); |
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#endif /* STM32F042x6 || STM32F048xx || */ |
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/* STM32F051x8 || STM32F058xx || */ |
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/* STM32F071xB || STM32F072xB || STM32F078xx || */ |
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/* STM32F091xC || STM32F098xx */ |
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} |
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/** |
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* @brief Returns the peripheral clock frequency |
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* @note Returns 0 if peripheral clock is unknown |
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* @param PeriphClk Peripheral clock identifier |
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* This parameter can be one of the following values: |
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* @arg @ref RCC_PERIPHCLK_RTC RTC peripheral clock |
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* @arg @ref RCC_PERIPHCLK_USART1 USART1 peripheral clock |
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* @arg @ref RCC_PERIPHCLK_I2C1 I2C1 peripheral clock |
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@if STM32F042x6 |
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* @arg @ref RCC_PERIPHCLK_USB USB peripheral clock |
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* @arg @ref RCC_PERIPHCLK_CEC CEC peripheral clock |
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@endif |
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@if STM32F048xx |
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* @arg @ref RCC_PERIPHCLK_USB USB peripheral clock |
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* @arg @ref RCC_PERIPHCLK_CEC CEC peripheral clock |
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@endif |
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@if STM32F051x8 |
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* @arg @ref RCC_PERIPHCLK_CEC CEC peripheral clock |
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@endif |
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@if STM32F058xx |
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* @arg @ref RCC_PERIPHCLK_CEC CEC peripheral clock |
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@endif |
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@if STM32F070x6 |
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* @arg @ref RCC_PERIPHCLK_USB USB peripheral clock |
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@endif |
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@if STM32F070xB |
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* @arg @ref RCC_PERIPHCLK_USB USB peripheral clock |
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@endif |
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@if STM32F071xB |
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* @arg @ref RCC_PERIPHCLK_USART2 USART2 peripheral clock |
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* @arg @ref RCC_PERIPHCLK_CEC CEC peripheral clock |
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@endif |
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@if STM32F072xB |
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* @arg @ref RCC_PERIPHCLK_USART2 USART2 peripheral clock |
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* @arg @ref RCC_PERIPHCLK_USB USB peripheral clock |
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* @arg @ref RCC_PERIPHCLK_CEC CEC peripheral clock |
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@endif |
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@if STM32F078xx |
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* @arg @ref RCC_PERIPHCLK_USART2 USART2 peripheral clock |
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* @arg @ref RCC_PERIPHCLK_USB USB peripheral clock |
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* @arg @ref RCC_PERIPHCLK_CEC CEC peripheral clock |
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@endif |
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@if STM32F091xC |
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* @arg @ref RCC_PERIPHCLK_USART2 USART2 peripheral clock |
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* @arg @ref RCC_PERIPHCLK_USART3 USART2 peripheral clock |
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* @arg @ref RCC_PERIPHCLK_CEC CEC peripheral clock |
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@endif |
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@if STM32F098xx |
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* @arg @ref RCC_PERIPHCLK_USART2 USART2 peripheral clock |
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* @arg @ref RCC_PERIPHCLK_USART3 USART2 peripheral clock |
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* @arg @ref RCC_PERIPHCLK_CEC CEC peripheral clock |
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@endif |
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* @retval Frequency in Hz (0: means that no available frequency for the peripheral) |
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*/ |
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uint32_t HAL_RCCEx_GetPeriphCLKFreq(uint32_t PeriphClk) |
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{ |
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/* frequency == 0 : means that no available frequency for the peripheral */ |
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uint32_t frequency = 0U; |
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uint32_t srcclk = 0U; |
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#if defined(USB) |
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uint32_t pllmull = 0U, pllsource = 0U, predivfactor = 0U; |
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#endif /* USB */ |
|
395 |
|
|
396 |
/* Check the parameters */ |
|
397 |
assert_param(IS_RCC_PERIPHCLOCK(PeriphClk)); |
|
398 |
|
|
399 |
switch (PeriphClk) |
|
400 |
{ |
|
401 |
case RCC_PERIPHCLK_RTC: |
|
402 |
{ |
|
403 |
/* Get the current RTC source */ |
|
404 |
srcclk = __HAL_RCC_GET_RTC_SOURCE(); |
|
405 |
|
|
406 |
/* Check if LSE is ready and if RTC clock selection is LSE */ |
|
407 |
if ((srcclk == RCC_RTCCLKSOURCE_LSE) && (HAL_IS_BIT_SET(RCC->BDCR, RCC_BDCR_LSERDY))) |
|
408 |
{ |
|
409 |
frequency = LSE_VALUE; |
|
410 |
} |
|
411 |
/* Check if LSI is ready and if RTC clock selection is LSI */ |
|
412 |
else if ((srcclk == RCC_RTCCLKSOURCE_LSI) && (HAL_IS_BIT_SET(RCC->CSR, RCC_CSR_LSIRDY))) |
|
413 |
{ |
|
414 |
frequency = LSI_VALUE; |
|
415 |
} |
|
416 |
/* Check if HSE is ready and if RTC clock selection is HSI_DIV32*/ |
|
417 |
else if ((srcclk == RCC_RTCCLKSOURCE_HSE_DIV32) && (HAL_IS_BIT_SET(RCC->CR, RCC_CR_HSERDY))) |
|
418 |
{ |
|
419 |
frequency = HSE_VALUE / 32U; |
|
420 |
} |
|
421 |
break; |
|
422 |
} |
|
423 |
case RCC_PERIPHCLK_USART1: |
|
424 |
{ |
|
425 |
/* Get the current USART1 source */ |
|
426 |
srcclk = __HAL_RCC_GET_USART1_SOURCE(); |
|
427 |
|
|
428 |
/* Check if USART1 clock selection is PCLK1 */ |
|
429 |
if (srcclk == RCC_USART1CLKSOURCE_PCLK1) |
|
430 |
{ |
|
431 |
frequency = HAL_RCC_GetPCLK1Freq(); |
|
432 |
} |
|
433 |
/* Check if HSI is ready and if USART1 clock selection is HSI */ |
|
434 |
else if ((srcclk == RCC_USART1CLKSOURCE_HSI) && (HAL_IS_BIT_SET(RCC->CR, RCC_CR_HSIRDY))) |
|
435 |
{ |
|
436 |
frequency = HSI_VALUE; |
|
437 |
} |
|
438 |
/* Check if USART1 clock selection is SYSCLK */ |
|
439 |
else if (srcclk == RCC_USART1CLKSOURCE_SYSCLK) |
|
440 |
{ |
|
441 |
frequency = HAL_RCC_GetSysClockFreq(); |
|
442 |
} |
|
443 |
/* Check if LSE is ready and if USART1 clock selection is LSE */ |
|
444 |
else if ((srcclk == RCC_USART1CLKSOURCE_LSE) && (HAL_IS_BIT_SET(RCC->BDCR, RCC_BDCR_LSERDY))) |
|
445 |
{ |
|
446 |
frequency = LSE_VALUE; |
|
447 |
} |
|
448 |
break; |
|
449 |
} |
|
450 |
#if defined(RCC_CFGR3_USART2SW) |
|
451 |
case RCC_PERIPHCLK_USART2: |
|
452 |
{ |
|
453 |
/* Get the current USART2 source */ |
|
454 |
srcclk = __HAL_RCC_GET_USART2_SOURCE(); |
|
455 |
|
|
456 |
/* Check if USART2 clock selection is PCLK1 */ |
|
457 |
if (srcclk == RCC_USART2CLKSOURCE_PCLK1) |
|
458 |
{ |
|
459 |
frequency = HAL_RCC_GetPCLK1Freq(); |
|
460 |
} |
|
461 |
/* Check if HSI is ready and if USART2 clock selection is HSI */ |
|
462 |
else if ((srcclk == RCC_USART2CLKSOURCE_HSI) && (HAL_IS_BIT_SET(RCC->CR, RCC_CR_HSIRDY))) |
|
463 |
{ |
|
464 |
frequency = HSI_VALUE; |
|
465 |
} |
|
466 |
/* Check if USART2 clock selection is SYSCLK */ |
|
467 |
else if (srcclk == RCC_USART2CLKSOURCE_SYSCLK) |
|
468 |
{ |
|
469 |
frequency = HAL_RCC_GetSysClockFreq(); |
|
470 |
} |
|
471 |
/* Check if LSE is ready and if USART2 clock selection is LSE */ |
|
472 |
else if ((srcclk == RCC_USART2CLKSOURCE_LSE) && (HAL_IS_BIT_SET(RCC->BDCR, RCC_BDCR_LSERDY))) |
|
473 |
{ |
|
474 |
frequency = LSE_VALUE; |
|
475 |
} |
|
476 |
break; |
|
477 |
} |
|
478 |
#endif /* RCC_CFGR3_USART2SW */ |
|
479 |
#if defined(RCC_CFGR3_USART3SW) |
|
480 |
case RCC_PERIPHCLK_USART3: |
|
481 |
{ |
|
482 |
/* Get the current USART3 source */ |
|
483 |
srcclk = __HAL_RCC_GET_USART3_SOURCE(); |
|
484 |
|
|
485 |
/* Check if USART3 clock selection is PCLK1 */ |
|
486 |
if (srcclk == RCC_USART3CLKSOURCE_PCLK1) |
|
487 |
{ |
|
488 |
frequency = HAL_RCC_GetPCLK1Freq(); |
|
489 |
} |
|
490 |
/* Check if HSI is ready and if USART3 clock selection is HSI */ |
|
491 |
else if ((srcclk == RCC_USART3CLKSOURCE_HSI) && (HAL_IS_BIT_SET(RCC->CR, RCC_CR_HSIRDY))) |
|
492 |
{ |
|
493 |
frequency = HSI_VALUE; |
|
494 |
} |
|
495 |
/* Check if USART3 clock selection is SYSCLK */ |
|
496 |
else if (srcclk == RCC_USART3CLKSOURCE_SYSCLK) |
|
497 |
{ |
|
498 |
frequency = HAL_RCC_GetSysClockFreq(); |
|
499 |
} |
|
500 |
/* Check if LSE is ready and if USART3 clock selection is LSE */ |
|
501 |
else if ((srcclk == RCC_USART3CLKSOURCE_LSE) && (HAL_IS_BIT_SET(RCC->BDCR, RCC_BDCR_LSERDY))) |
|
502 |
{ |
|
503 |
frequency = LSE_VALUE; |
|
504 |
} |
|
505 |
break; |
|
506 |
} |
|
507 |
#endif /* RCC_CFGR3_USART3SW */ |
|
508 |
case RCC_PERIPHCLK_I2C1: |
|
509 |
{ |
|
510 |
/* Get the current I2C1 source */ |
|
511 |
srcclk = __HAL_RCC_GET_I2C1_SOURCE(); |
|
512 |
|
|
513 |
/* Check if HSI is ready and if I2C1 clock selection is HSI */ |
|
514 |
if ((srcclk == RCC_I2C1CLKSOURCE_HSI) && (HAL_IS_BIT_SET(RCC->CR, RCC_CR_HSIRDY))) |
|
515 |
{ |
|
516 |
frequency = HSI_VALUE; |
|
517 |
} |
|
518 |
/* Check if I2C1 clock selection is SYSCLK */ |
|
519 |
else if (srcclk == RCC_I2C1CLKSOURCE_SYSCLK) |
|
520 |
{ |
|
521 |
frequency = HAL_RCC_GetSysClockFreq(); |
|
522 |
} |
|
523 |
break; |
|
524 |
} |
|
525 |
#if defined(USB) |
|
526 |
case RCC_PERIPHCLK_USB: |
|
527 |
{ |
|
528 |
/* Get the current USB source */ |
|
529 |
srcclk = __HAL_RCC_GET_USB_SOURCE(); |
|
530 |
|
|
531 |
/* Check if PLL is ready and if USB clock selection is PLL */ |
|
532 |
if ((srcclk == RCC_USBCLKSOURCE_PLL) && (HAL_IS_BIT_SET(RCC->CR, RCC_CR_PLLRDY))) |
|
533 |
{ |
|
534 |
/* Get PLL clock source and multiplication factor ----------------------*/ |
|
535 |
pllmull = RCC->CFGR & RCC_CFGR_PLLMUL; |
|
536 |
pllsource = RCC->CFGR & RCC_CFGR_PLLSRC; |
|
537 |
pllmull = (pllmull >> RCC_CFGR_PLLMUL_BITNUMBER) + 2U; |
|
538 |
predivfactor = (RCC->CFGR2 & RCC_CFGR2_PREDIV) + 1U; |
|
539 |
|
|
540 |
if (pllsource == RCC_CFGR_PLLSRC_HSE_PREDIV) |
|
541 |
{ |
|
542 |
/* HSE used as PLL clock source : frequency = HSE/PREDIV * PLLMUL */ |
|
543 |
frequency = (HSE_VALUE/predivfactor) * pllmull; |
|
544 |
} |
|
545 |
#if defined(RCC_CR2_HSI48ON) |
|
546 |
else if (pllsource == RCC_CFGR_PLLSRC_HSI48_PREDIV) |
|
547 |
{ |
|
548 |
/* HSI48 used as PLL clock source : frequency = HSI48/PREDIV * PLLMUL */ |
|
549 |
frequency = (HSI48_VALUE / predivfactor) * pllmull; |
|
550 |
} |
|
551 |
#endif /* RCC_CR2_HSI48ON */ |
|
552 |
else |
|
553 |
{ |
|
554 |
#if defined(STM32F042x6) || defined(STM32F048xx) || defined(STM32F078xx) || defined(STM32F072xB) || defined(STM32F070xB) |
|
555 |
/* HSI used as PLL clock source : frequency = HSI/PREDIV * PLLMUL */ |
|
556 |
frequency = (HSI_VALUE / predivfactor) * pllmull; |
|
557 |
#else |
|
558 |
/* HSI used as PLL clock source : frequency = HSI/2U * PLLMUL */ |
|
559 |
frequency = (HSI_VALUE >> 1U) * pllmull; |
|
560 |
#endif /* STM32F042x6 || STM32F048xx || STM32F072xB || STM32F078xx || STM32F070xB */ |
|
561 |
} |
|
562 |
} |
|
563 |
#if defined(RCC_CR2_HSI48ON) |
|
564 |
/* Check if HSI48 is ready and if USB clock selection is HSI48 */ |
|
565 |
else if ((srcclk == RCC_USBCLKSOURCE_HSI48) && (HAL_IS_BIT_SET(RCC->CR2, RCC_CR2_HSI48RDY))) |
|
566 |
{ |
|
567 |
frequency = HSI48_VALUE; |
|
568 |
} |
|
569 |
#endif /* RCC_CR2_HSI48ON */ |
|
570 |
break; |
|
571 |
} |
|
572 |
#endif /* USB */ |
|
573 |
#if defined(CEC) |
|
574 |
case RCC_PERIPHCLK_CEC: |
|
575 |
{ |
|
576 |
/* Get the current CEC source */ |
|
577 |
srcclk = __HAL_RCC_GET_CEC_SOURCE(); |
|
578 |
|
|
579 |
/* Check if HSI is ready and if CEC clock selection is HSI */ |
|
580 |
if ((srcclk == RCC_CECCLKSOURCE_HSI) && (HAL_IS_BIT_SET(RCC->CR, RCC_CR_HSIRDY))) |
|
581 |
{ |
|
582 |
frequency = HSI_VALUE; |
|
583 |
} |
|
584 |
/* Check if LSE is ready and if CEC clock selection is LSE */ |
|
585 |
else if ((srcclk == RCC_CECCLKSOURCE_LSE) && (HAL_IS_BIT_SET(RCC->BDCR, RCC_BDCR_LSERDY))) |
|
586 |
{ |
|
587 |
frequency = LSE_VALUE; |
|
588 |
} |
|
589 |
break; |
|
590 |
} |
|
591 |
#endif /* CEC */ |
|
592 |
default: |
|
593 |
{ |
|
594 |
break; |
|
595 |
} |
|
596 |
} |
|
597 |
return(frequency); |
|
598 |
} |
|
599 |
|
|
600 |
/** |
|
601 |
* @} |
|
602 |
*/ |
|
603 |
|
|
604 |
#if defined(CRS) |
|
605 |
|
|
606 |
/** @defgroup RCCEx_Exported_Functions_Group3 Extended Clock Recovery System Control functions |
|
607 |
* @brief Extended Clock Recovery System Control functions |
|
608 |
* |
|
609 |
@verbatim |
|
610 |
=============================================================================== |
|
611 |
##### Extended Clock Recovery System Control functions ##### |
|
612 |
=============================================================================== |
|
613 |
[..] |
|
614 |
For devices with Clock Recovery System feature (CRS), RCC Extention HAL driver can be used as follows: |
|
615 |
|
|
616 |
(#) In System clock config, HSI48 needs to be enabled |
|
617 |
|
|
618 |
(#) Enable CRS clock in IP MSP init which will use CRS functions |
|
619 |
|
|
620 |
(#) Call CRS functions as follows: |
|
621 |
(##) Prepare synchronization configuration necessary for HSI48 calibration |
|
622 |
(+++) Default values can be set for frequency Error Measurement (reload and error limit) |
|
623 |
and also HSI48 oscillator smooth trimming. |
|
624 |
(+++) Macro @ref __HAL_RCC_CRS_RELOADVALUE_CALCULATE can be also used to calculate |
|
625 |
directly reload value with target and synchronization frequencies values |
|
626 |
(##) Call function @ref HAL_RCCEx_CRSConfig which |
|
627 |
(+++) Reset CRS registers to their default values. |
|
628 |
(+++) Configure CRS registers with synchronization configuration |
|
629 |
(+++) Enable automatic calibration and frequency error counter feature |
|
630 |
Note: When using USB LPM (Link Power Management) and the device is in Sleep mode, the |
|
631 |
periodic USB SOF will not be generated by the host. No SYNC signal will therefore be |
|
632 |
provided to the CRS to calibrate the HSI48 on the run. To guarantee the required clock |
|
633 |
precision after waking up from Sleep mode, the LSE or reference clock on the GPIOs |
|
634 |
should be used as SYNC signal. |
|
635 |
|
|
636 |
(##) A polling function is provided to wait for complete synchronization |
|
637 |
(+++) Call function @ref HAL_RCCEx_CRSWaitSynchronization() |
|
638 |
(+++) According to CRS status, user can decide to adjust again the calibration or continue |
|
639 |
application if synchronization is OK |
|
640 |
|
|
641 |
(#) User can retrieve information related to synchronization in calling function |
|
642 |
@ref HAL_RCCEx_CRSGetSynchronizationInfo() |
|
643 |
|
|
644 |
(#) Regarding synchronization status and synchronization information, user can try a new calibration |
|
645 |
in changing synchronization configuration and call again HAL_RCCEx_CRSConfig. |
|
646 |
Note: When the SYNC event is detected during the downcounting phase (before reaching the zero value), |
|
647 |
it means that the actual frequency is lower than the target (and so, that the TRIM value should be |
|
648 |
incremented), while when it is detected during the upcounting phase it means that the actual frequency |
|
649 |
is higher (and that the TRIM value should be decremented). |
|
650 |
|
|
651 |
(#) In interrupt mode, user can resort to the available macros (__HAL_RCC_CRS_XXX_IT). Interrupts will go |
|
652 |
through CRS Handler (RCC_IRQn/RCC_IRQHandler) |
|
653 |
(++) Call function @ref HAL_RCCEx_CRSConfig() |
|
654 |
(++) Enable RCC_IRQn (thanks to NVIC functions) |
|
655 |
(++) Enable CRS interrupt (@ref __HAL_RCC_CRS_ENABLE_IT) |
|
656 |
(++) Implement CRS status management in the following user callbacks called from |
|
657 |
HAL_RCCEx_CRS_IRQHandler(): |
|
658 |
(+++) @ref HAL_RCCEx_CRS_SyncOkCallback() |
|
659 |
(+++) @ref HAL_RCCEx_CRS_SyncWarnCallback() |
|
660 |
(+++) @ref HAL_RCCEx_CRS_ExpectedSyncCallback() |
|
661 |
(+++) @ref HAL_RCCEx_CRS_ErrorCallback() |
|
662 |
|
|
663 |
(#) To force a SYNC EVENT, user can use the function @ref HAL_RCCEx_CRSSoftwareSynchronizationGenerate(). |
|
664 |
This function can be called before calling @ref HAL_RCCEx_CRSConfig (for instance in Systick handler) |
|
665 |
|
|
666 |
@endverbatim |
|
667 |
* @{ |
|
668 |
*/ |
|
669 |
|
|
670 |
/** |
|
671 |
* @brief Start automatic synchronization for polling mode |
|
672 |
* @param pInit Pointer on RCC_CRSInitTypeDef structure |
|
673 |
* @retval None |
|
674 |
*/ |
|
675 |
void HAL_RCCEx_CRSConfig(RCC_CRSInitTypeDef *pInit) |
|
676 |
{ |
|
677 |
uint32_t value = 0U; |
|
678 |
|
|
679 |
/* Check the parameters */ |
|
680 |
assert_param(IS_RCC_CRS_SYNC_DIV(pInit->Prescaler)); |
|
681 |
assert_param(IS_RCC_CRS_SYNC_SOURCE(pInit->Source)); |
|
682 |
assert_param(IS_RCC_CRS_SYNC_POLARITY(pInit->Polarity)); |
|
683 |
assert_param(IS_RCC_CRS_RELOADVALUE(pInit->ReloadValue)); |
|
684 |
assert_param(IS_RCC_CRS_ERRORLIMIT(pInit->ErrorLimitValue)); |
|
685 |
assert_param(IS_RCC_CRS_HSI48CALIBRATION(pInit->HSI48CalibrationValue)); |
|
686 |
|
|
687 |
/* CONFIGURATION */ |
|
688 |
|
|
689 |
/* Before configuration, reset CRS registers to their default values*/ |
|
690 |
__HAL_RCC_CRS_FORCE_RESET(); |
|
691 |
__HAL_RCC_CRS_RELEASE_RESET(); |
|
692 |
|
|
693 |
/* Set the SYNCDIV[2:0] bits according to Prescaler value */ |
|
694 |
/* Set the SYNCSRC[1:0] bits according to Source value */ |
|
695 |
/* Set the SYNCSPOL bit according to Polarity value */ |
|
696 |
value = (pInit->Prescaler | pInit->Source | pInit->Polarity); |
|
697 |
/* Set the RELOAD[15:0] bits according to ReloadValue value */ |
|
698 |
value |= pInit->ReloadValue; |
|
699 |
/* Set the FELIM[7:0] bits according to ErrorLimitValue value */ |
|
700 |
value |= (pInit->ErrorLimitValue << CRS_CFGR_FELIM_BITNUMBER); |
|
701 |
WRITE_REG(CRS->CFGR, value); |
|
702 |
|
|
703 |
/* Adjust HSI48 oscillator smooth trimming */ |
|
704 |
/* Set the TRIM[5:0] bits according to RCC_CRS_HSI48CalibrationValue value */ |
|
705 |
MODIFY_REG(CRS->CR, CRS_CR_TRIM, (pInit->HSI48CalibrationValue << CRS_CR_TRIM_BITNUMBER)); |
|
706 |
|
|
707 |
/* START AUTOMATIC SYNCHRONIZATION*/ |
|
708 |
|
|
709 |
/* Enable Automatic trimming & Frequency error counter */ |
|
710 |
SET_BIT(CRS->CR, CRS_CR_AUTOTRIMEN | CRS_CR_CEN); |
|
711 |
} |
|
712 |
|
|
713 |
/** |
|
714 |
* @brief Generate the software synchronization event |
|
715 |
* @retval None |
|
716 |
*/ |
|
717 |
void HAL_RCCEx_CRSSoftwareSynchronizationGenerate(void) |
|
718 |
{ |
|
719 |
SET_BIT(CRS->CR, CRS_CR_SWSYNC); |
|
720 |
} |
|
721 |
|
|
722 |
/** |
|
723 |
* @brief Return synchronization info |
|
724 |
* @param pSynchroInfo Pointer on RCC_CRSSynchroInfoTypeDef structure |
|
725 |
* @retval None |
|
726 |
*/ |
|
727 |
void HAL_RCCEx_CRSGetSynchronizationInfo(RCC_CRSSynchroInfoTypeDef *pSynchroInfo) |
|
728 |
{ |
|
729 |
/* Check the parameter */ |
|
730 |
assert_param(pSynchroInfo != NULL); |
|
731 |
|
|
732 |
/* Get the reload value */ |
|
733 |
pSynchroInfo->ReloadValue = (uint32_t)(READ_BIT(CRS->CFGR, CRS_CFGR_RELOAD)); |
|
734 |
|
|
735 |
/* Get HSI48 oscillator smooth trimming */ |
|
736 |
pSynchroInfo->HSI48CalibrationValue = (uint32_t)(READ_BIT(CRS->CR, CRS_CR_TRIM) >> CRS_CR_TRIM_BITNUMBER); |
|
737 |
|
|
738 |
/* Get Frequency error capture */ |
|
739 |
pSynchroInfo->FreqErrorCapture = (uint32_t)(READ_BIT(CRS->ISR, CRS_ISR_FECAP) >> CRS_ISR_FECAP_BITNUMBER); |
|
740 |
|
|
741 |
/* Get Frequency error direction */ |
|
742 |
pSynchroInfo->FreqErrorDirection = (uint32_t)(READ_BIT(CRS->ISR, CRS_ISR_FEDIR)); |
|
743 |
} |
|
744 |
|
|
745 |
/** |
|
746 |
* @brief Wait for CRS Synchronization status. |
|
747 |
* @param Timeout Duration of the timeout |
|
748 |
* @note Timeout is based on the maximum time to receive a SYNC event based on synchronization |
|
749 |
* frequency. |
|
750 |
* @note If Timeout set to HAL_MAX_DELAY, HAL_TIMEOUT will be never returned. |
|
751 |
* @retval Combination of Synchronization status |
|
752 |
* This parameter can be a combination of the following values: |
|
753 |
* @arg @ref RCC_CRS_TIMEOUT |
|
754 |
* @arg @ref RCC_CRS_SYNCOK |
|
755 |
* @arg @ref RCC_CRS_SYNCWARN |
|
756 |
* @arg @ref RCC_CRS_SYNCERR |
|
757 |
* @arg @ref RCC_CRS_SYNCMISS |
|
758 |
* @arg @ref RCC_CRS_TRIMOVF |
|
759 |
*/ |
|
760 |
uint32_t HAL_RCCEx_CRSWaitSynchronization(uint32_t Timeout) |
|
761 |
{ |
|
762 |
uint32_t crsstatus = RCC_CRS_NONE; |
|
763 |
uint32_t tickstart = 0U; |
|
764 |
|
|
765 |
/* Get timeout */ |
|
766 |
tickstart = HAL_GetTick(); |
|
767 |
|
|
768 |
/* Wait for CRS flag or timeout detection */ |
|
769 |
do |
|
770 |
{ |
|
771 |
if(Timeout != HAL_MAX_DELAY) |
|
772 |
{ |
|
773 |
if((Timeout == 0U) || ((HAL_GetTick() - tickstart) > Timeout)) |
|
774 |
{ |
|
775 |
crsstatus = RCC_CRS_TIMEOUT; |
|
776 |
} |
|
777 |
} |
|
778 |
/* Check CRS SYNCOK flag */ |
|
779 |
if(__HAL_RCC_CRS_GET_FLAG(RCC_CRS_FLAG_SYNCOK)) |
|
780 |
{ |
|
781 |
/* CRS SYNC event OK */ |
|
782 |
crsstatus |= RCC_CRS_SYNCOK; |
|
783 |
|
|
784 |
/* Clear CRS SYNC event OK bit */ |
|
785 |
__HAL_RCC_CRS_CLEAR_FLAG(RCC_CRS_FLAG_SYNCOK); |
|
786 |
} |
|
787 |
|
|
788 |
/* Check CRS SYNCWARN flag */ |
|
789 |
if(__HAL_RCC_CRS_GET_FLAG(RCC_CRS_FLAG_SYNCWARN)) |
|
790 |
{ |
|
791 |
/* CRS SYNC warning */ |
|
792 |
crsstatus |= RCC_CRS_SYNCWARN; |
|
793 |
|
|
794 |
/* Clear CRS SYNCWARN bit */ |
|
795 |
__HAL_RCC_CRS_CLEAR_FLAG(RCC_CRS_FLAG_SYNCWARN); |
|
796 |
} |
|
797 |
|
|
798 |
/* Check CRS TRIM overflow flag */ |
|
799 |
if(__HAL_RCC_CRS_GET_FLAG(RCC_CRS_FLAG_TRIMOVF)) |
|
800 |
{ |
|
801 |
/* CRS SYNC Error */ |
|
802 |
crsstatus |= RCC_CRS_TRIMOVF; |
|
803 |
|
|
804 |
/* Clear CRS Error bit */ |
|
805 |
__HAL_RCC_CRS_CLEAR_FLAG(RCC_CRS_FLAG_TRIMOVF); |
|
806 |
} |
|
807 |
|
|
808 |
/* Check CRS Error flag */ |
|
809 |
if(__HAL_RCC_CRS_GET_FLAG(RCC_CRS_FLAG_SYNCERR)) |
|
810 |
{ |
|
811 |
/* CRS SYNC Error */ |
|
812 |
crsstatus |= RCC_CRS_SYNCERR; |
|
813 |
|
|
814 |
/* Clear CRS Error bit */ |
|
815 |
__HAL_RCC_CRS_CLEAR_FLAG(RCC_CRS_FLAG_SYNCERR); |
|
816 |
} |
|
817 |
|
|
818 |
/* Check CRS SYNC Missed flag */ |
|
819 |
if(__HAL_RCC_CRS_GET_FLAG(RCC_CRS_FLAG_SYNCMISS)) |
|
820 |
{ |
|
821 |
/* CRS SYNC Missed */ |
|
822 |
crsstatus |= RCC_CRS_SYNCMISS; |
|
823 |
|
|
824 |
/* Clear CRS SYNC Missed bit */ |
|
825 |
__HAL_RCC_CRS_CLEAR_FLAG(RCC_CRS_FLAG_SYNCMISS); |
|
826 |
} |
|
827 |
|
|
828 |
/* Check CRS Expected SYNC flag */ |
|
829 |
if(__HAL_RCC_CRS_GET_FLAG(RCC_CRS_FLAG_ESYNC)) |
|
830 |
{ |
|
831 |
/* frequency error counter reached a zero value */ |
|
832 |
__HAL_RCC_CRS_CLEAR_FLAG(RCC_CRS_FLAG_ESYNC); |
|
833 |
} |
|
834 |
} while(RCC_CRS_NONE == crsstatus); |
|
835 |
|
|
836 |
return crsstatus; |
|
837 |
} |
|
838 |
|
|
839 |
/** |
|
840 |
* @brief Handle the Clock Recovery System interrupt request. |
|
841 |
* @retval None |
|
842 |
*/ |
|
843 |
void HAL_RCCEx_CRS_IRQHandler(void) |
|
844 |
{ |
|
845 |
uint32_t crserror = RCC_CRS_NONE; |
|
846 |
/* Get current IT flags and IT sources values */ |
|
847 |
uint32_t itflags = READ_REG(CRS->ISR); |
|
848 |
uint32_t itsources = READ_REG(CRS->CR); |
|
849 |
|
|
850 |
/* Check CRS SYNCOK flag */ |
|
851 |
if(((itflags & RCC_CRS_FLAG_SYNCOK) != RESET) && ((itsources & RCC_CRS_IT_SYNCOK) != RESET)) |
|
852 |
{ |
|
853 |
/* Clear CRS SYNC event OK flag */ |
|
854 |
WRITE_REG(CRS->ICR, CRS_ICR_SYNCOKC); |
|
855 |
|
|
856 |
/* user callback */ |
|
857 |
HAL_RCCEx_CRS_SyncOkCallback(); |
|
858 |
} |
|
859 |
/* Check CRS SYNCWARN flag */ |
|
860 |
else if(((itflags & RCC_CRS_FLAG_SYNCWARN) != RESET) && ((itsources & RCC_CRS_IT_SYNCWARN) != RESET)) |
|
861 |
{ |
|
862 |
/* Clear CRS SYNCWARN flag */ |
|
863 |
WRITE_REG(CRS->ICR, CRS_ICR_SYNCWARNC); |
|
864 |
|
|
865 |
/* user callback */ |
|
866 |
HAL_RCCEx_CRS_SyncWarnCallback(); |
|
867 |
} |
|
868 |
/* Check CRS Expected SYNC flag */ |
|
869 |
else if(((itflags & RCC_CRS_FLAG_ESYNC) != RESET) && ((itsources & RCC_CRS_IT_ESYNC) != RESET)) |
|
870 |
{ |
|
871 |
/* frequency error counter reached a zero value */ |
|
872 |
WRITE_REG(CRS->ICR, CRS_ICR_ESYNCC); |
|
873 |
|
|
874 |
/* user callback */ |
|
875 |
HAL_RCCEx_CRS_ExpectedSyncCallback(); |
|
876 |
} |
|
877 |
/* Check CRS Error flags */ |
|
878 |
else |
|
879 |
{ |
|
880 |
if(((itflags & RCC_CRS_FLAG_ERR) != RESET) && ((itsources & RCC_CRS_IT_ERR) != RESET)) |
|
881 |
{ |
|
882 |
if((itflags & RCC_CRS_FLAG_SYNCERR) != RESET) |
|
883 |
{ |
|
884 |
crserror |= RCC_CRS_SYNCERR; |
|
885 |
} |
|
886 |
if((itflags & RCC_CRS_FLAG_SYNCMISS) != RESET) |
|
887 |
{ |
|
888 |
crserror |= RCC_CRS_SYNCMISS; |
|
889 |
} |
|
890 |
if((itflags & RCC_CRS_FLAG_TRIMOVF) != RESET) |
|
891 |
{ |
|
892 |
crserror |= RCC_CRS_TRIMOVF; |
|
893 |
} |
|
894 |
|
|
895 |
/* Clear CRS Error flags */ |
|
896 |
WRITE_REG(CRS->ICR, CRS_ICR_ERRC); |
|
897 |
|
|
898 |
/* user error callback */ |
|
899 |
HAL_RCCEx_CRS_ErrorCallback(crserror); |
|
900 |
} |
|
901 |
} |
|
902 |
} |
|
903 |
|
|
904 |
/** |
|
905 |
* @brief RCCEx Clock Recovery System SYNCOK interrupt callback. |
|
906 |
* @retval none |
|
907 |
*/ |
|
908 |
__weak void HAL_RCCEx_CRS_SyncOkCallback(void) |
|
909 |
{ |
|
910 |
/* NOTE : This function should not be modified, when the callback is needed, |
|
911 |
the @ref HAL_RCCEx_CRS_SyncOkCallback should be implemented in the user file |
|
912 |
*/ |
|
913 |
} |
|
914 |
|
|
915 |
/** |
|
916 |
* @brief RCCEx Clock Recovery System SYNCWARN interrupt callback. |
|
917 |
* @retval none |
|
918 |
*/ |
|
919 |
__weak void HAL_RCCEx_CRS_SyncWarnCallback(void) |
|
920 |
{ |
|
921 |
/* NOTE : This function should not be modified, when the callback is needed, |
|
922 |
the @ref HAL_RCCEx_CRS_SyncWarnCallback should be implemented in the user file |
|
923 |
*/ |
|
924 |
} |
|
925 |
|
|
926 |
/** |
|
927 |
* @brief RCCEx Clock Recovery System Expected SYNC interrupt callback. |
|
928 |
* @retval none |
|
929 |
*/ |
|
930 |
__weak void HAL_RCCEx_CRS_ExpectedSyncCallback(void) |
|
931 |
{ |
|
932 |
/* NOTE : This function should not be modified, when the callback is needed, |
|
933 |
the @ref HAL_RCCEx_CRS_ExpectedSyncCallback should be implemented in the user file |
|
934 |
*/ |
|
935 |
} |
|
936 |
|
|
937 |
/** |
|
938 |
* @brief RCCEx Clock Recovery System Error interrupt callback. |
|
939 |
* @param Error Combination of Error status. |
|
940 |
* This parameter can be a combination of the following values: |
|
941 |
* @arg @ref RCC_CRS_SYNCERR |
|
942 |
* @arg @ref RCC_CRS_SYNCMISS |
|
943 |
* @arg @ref RCC_CRS_TRIMOVF |
|
944 |
* @retval none |
|
945 |
*/ |
|
946 |
__weak void HAL_RCCEx_CRS_ErrorCallback(uint32_t Error) |
|
947 |
{ |
|
948 |
/* Prevent unused argument(s) compilation warning */ |
|
949 |
UNUSED(Error); |
|
950 |
|
|
951 |
/* NOTE : This function should not be modified, when the callback is needed, |
|
952 |
the @ref HAL_RCCEx_CRS_ErrorCallback should be implemented in the user file |
|
953 |
*/ |
|
954 |
} |
|
955 |
|
|
956 |
/** |
|
957 |
* @} |
|
958 |
*/ |
|
959 |
|
|
960 |
#endif /* CRS */ |
|
961 |
|
|
962 |
/** |
|
963 |
* @} |
|
964 |
*/ |
|
965 |
|
|
966 |
/** |
|
967 |
* @} |
|
968 |
*/ |
|
969 |
|
|
970 |
/** |
|
971 |
* @} |
|
972 |
*/ |
|
973 |
|
|
974 |
#endif /* HAL_RCC_MODULE_ENABLED */ |
|
975 |
|
|
976 |
/** |
|
977 |
* @} |
|
978 |
*/ |
|
979 |
|
|
980 |
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/ |