copy from src/bare_test/stm32_key/fwlib/src/stm32f10x_bkp.c
copy to src/bare_test/4.Systick/stdlib/src/stm32f10x_bkp.c
File was copied from src/bare_test/stm32_key/fwlib/src/stm32f10x_bkp.c |
| | |
| | | /**
|
| | | ******************************************************************************
|
| | | * @file stm32f10x_bkp.c
|
| | | * @author MCD Application Team
|
| | | * @version V3.5.0
|
| | | * @date 11-March-2011
|
| | | * @brief This file provides all the BKP firmware functions.
|
| | | ******************************************************************************
|
| | | * @attention
|
| | | *
|
| | | * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS
|
| | | * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE
|
| | | * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY
|
| | | * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING
|
| | | * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE
|
| | | * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.
|
| | | *
|
| | | * <h2><center>© COPYRIGHT 2011 STMicroelectronics</center></h2>
|
| | | ******************************************************************************
|
| | | */
|
| | |
|
| | | /* Includes ------------------------------------------------------------------*/
|
| | | #include "stm32f10x_bkp.h"
|
| | | #include "stm32f10x_rcc.h"
|
| | |
|
| | | /** @addtogroup STM32F10x_StdPeriph_Driver
|
| | | * @{
|
| | | */
|
| | |
|
| | | /** @defgroup BKP |
| | | * @brief BKP driver modules
|
| | | * @{
|
| | | */
|
| | |
|
| | | /** @defgroup BKP_Private_TypesDefinitions
|
| | | * @{
|
| | | */
|
| | |
|
| | | /**
|
| | | * @}
|
| | | */
|
| | |
|
| | | /** @defgroup BKP_Private_Defines
|
| | | * @{
|
| | | */
|
| | |
|
| | | /* ------------ BKP registers bit address in the alias region --------------- */
|
| | | #define BKP_OFFSET (BKP_BASE - PERIPH_BASE)
|
| | |
|
| | | /* --- CR Register ----*/
|
| | |
|
| | | /* Alias word address of TPAL bit */
|
| | | #define CR_OFFSET (BKP_OFFSET + 0x30)
|
| | | #define TPAL_BitNumber 0x01
|
| | | #define CR_TPAL_BB (PERIPH_BB_BASE + (CR_OFFSET * 32) + (TPAL_BitNumber * 4))
|
| | |
|
| | | /* Alias word address of TPE bit */
|
| | | #define TPE_BitNumber 0x00
|
| | | #define CR_TPE_BB (PERIPH_BB_BASE + (CR_OFFSET * 32) + (TPE_BitNumber * 4))
|
| | |
|
| | | /* --- CSR Register ---*/
|
| | |
|
| | | /* Alias word address of TPIE bit */
|
| | | #define CSR_OFFSET (BKP_OFFSET + 0x34)
|
| | | #define TPIE_BitNumber 0x02
|
| | | #define CSR_TPIE_BB (PERIPH_BB_BASE + (CSR_OFFSET * 32) + (TPIE_BitNumber * 4))
|
| | |
|
| | | /* Alias word address of TIF bit */
|
| | | #define TIF_BitNumber 0x09
|
| | | #define CSR_TIF_BB (PERIPH_BB_BASE + (CSR_OFFSET * 32) + (TIF_BitNumber * 4))
|
| | |
|
| | | /* Alias word address of TEF bit */
|
| | | #define TEF_BitNumber 0x08
|
| | | #define CSR_TEF_BB (PERIPH_BB_BASE + (CSR_OFFSET * 32) + (TEF_BitNumber * 4))
|
| | |
|
| | | /* ---------------------- BKP registers bit mask ------------------------ */
|
| | |
|
| | | /* RTCCR register bit mask */
|
| | | #define RTCCR_CAL_MASK ((uint16_t)0xFF80)
|
| | | #define RTCCR_MASK ((uint16_t)0xFC7F)
|
| | |
|
| | | /**
|
| | | * @}
|
| | | */ |
| | |
|
| | |
|
| | | /** @defgroup BKP_Private_Macros
|
| | | * @{
|
| | | */
|
| | |
|
| | | /**
|
| | | * @}
|
| | | */
|
| | |
|
| | | /** @defgroup BKP_Private_Variables
|
| | | * @{
|
| | | */
|
| | |
|
| | | /**
|
| | | * @}
|
| | | */
|
| | |
|
| | | /** @defgroup BKP_Private_FunctionPrototypes
|
| | | * @{
|
| | | */
|
| | |
|
| | | /**
|
| | | * @}
|
| | | */
|
| | |
|
| | | /** @defgroup BKP_Private_Functions
|
| | | * @{
|
| | | */
|
| | |
|
| | | /**
|
| | | * @brief Deinitializes the BKP peripheral registers to their default reset values.
|
| | | * @param None
|
| | | * @retval None
|
| | | */
|
| | | void BKP_DeInit(void)
|
| | | {
|
| | | RCC_BackupResetCmd(ENABLE);
|
| | | RCC_BackupResetCmd(DISABLE);
|
| | | }
|
| | |
|
| | | /**
|
| | | * @brief Configures the Tamper Pin active level.
|
| | | * @param BKP_TamperPinLevel: specifies the Tamper Pin active level.
|
| | | * This parameter can be one of the following values:
|
| | | * @arg BKP_TamperPinLevel_High: Tamper pin active on high level
|
| | | * @arg BKP_TamperPinLevel_Low: Tamper pin active on low level
|
| | | * @retval None
|
| | | */
|
| | | void BKP_TamperPinLevelConfig(uint16_t BKP_TamperPinLevel)
|
| | | {
|
| | | /* Check the parameters */
|
| | | assert_param(IS_BKP_TAMPER_PIN_LEVEL(BKP_TamperPinLevel));
|
| | | *(__IO uint32_t *) CR_TPAL_BB = BKP_TamperPinLevel;
|
| | | }
|
| | |
|
| | | /**
|
| | | * @brief Enables or disables the Tamper Pin activation.
|
| | | * @param NewState: new state of the Tamper Pin activation.
|
| | | * This parameter can be: ENABLE or DISABLE.
|
| | | * @retval None
|
| | | */
|
| | | void BKP_TamperPinCmd(FunctionalState NewState)
|
| | | {
|
| | | /* Check the parameters */
|
| | | assert_param(IS_FUNCTIONAL_STATE(NewState));
|
| | | *(__IO uint32_t *) CR_TPE_BB = (uint32_t)NewState;
|
| | | }
|
| | |
|
| | | /**
|
| | | * @brief Enables or disables the Tamper Pin Interrupt.
|
| | | * @param NewState: new state of the Tamper Pin Interrupt.
|
| | | * This parameter can be: ENABLE or DISABLE.
|
| | | * @retval None
|
| | | */
|
| | | void BKP_ITConfig(FunctionalState NewState)
|
| | | {
|
| | | /* Check the parameters */
|
| | | assert_param(IS_FUNCTIONAL_STATE(NewState));
|
| | | *(__IO uint32_t *) CSR_TPIE_BB = (uint32_t)NewState;
|
| | | }
|
| | |
|
| | | /**
|
| | | * @brief Select the RTC output source to output on the Tamper pin.
|
| | | * @param BKP_RTCOutputSource: specifies the RTC output source.
|
| | | * This parameter can be one of the following values:
|
| | | * @arg BKP_RTCOutputSource_None: no RTC output on the Tamper pin.
|
| | | * @arg BKP_RTCOutputSource_CalibClock: output the RTC clock with frequency
|
| | | * divided by 64 on the Tamper pin.
|
| | | * @arg BKP_RTCOutputSource_Alarm: output the RTC Alarm pulse signal on
|
| | | * the Tamper pin.
|
| | | * @arg BKP_RTCOutputSource_Second: output the RTC Second pulse signal on
|
| | | * the Tamper pin. |
| | | * @retval None
|
| | | */
|
| | | void BKP_RTCOutputConfig(uint16_t BKP_RTCOutputSource)
|
| | | {
|
| | | uint16_t tmpreg = 0;
|
| | | /* Check the parameters */
|
| | | assert_param(IS_BKP_RTC_OUTPUT_SOURCE(BKP_RTCOutputSource));
|
| | | tmpreg = BKP->RTCCR;
|
| | | /* Clear CCO, ASOE and ASOS bits */
|
| | | tmpreg &= RTCCR_MASK;
|
| | | |
| | | /* Set CCO, ASOE and ASOS bits according to BKP_RTCOutputSource value */
|
| | | tmpreg |= BKP_RTCOutputSource;
|
| | | /* Store the new value */
|
| | | BKP->RTCCR = tmpreg;
|
| | | }
|
| | |
|
| | | /**
|
| | | * @brief Sets RTC Clock Calibration value.
|
| | | * @param CalibrationValue: specifies the RTC Clock Calibration value.
|
| | | * This parameter must be a number between 0 and 0x7F.
|
| | | * @retval None
|
| | | */
|
| | | void BKP_SetRTCCalibrationValue(uint8_t CalibrationValue)
|
| | | {
|
| | | uint16_t tmpreg = 0;
|
| | | /* Check the parameters */
|
| | | assert_param(IS_BKP_CALIBRATION_VALUE(CalibrationValue));
|
| | | tmpreg = BKP->RTCCR;
|
| | | /* Clear CAL[6:0] bits */
|
| | | tmpreg &= RTCCR_CAL_MASK;
|
| | | /* Set CAL[6:0] bits according to CalibrationValue value */
|
| | | tmpreg |= CalibrationValue;
|
| | | /* Store the new value */
|
| | | BKP->RTCCR = tmpreg;
|
| | | }
|
| | |
|
| | | /**
|
| | | * @brief Writes user data to the specified Data Backup Register.
|
| | | * @param BKP_DR: specifies the Data Backup Register.
|
| | | * This parameter can be BKP_DRx where x:[1, 42]
|
| | | * @param Data: data to write
|
| | | * @retval None
|
| | | */
|
| | | void BKP_WriteBackupRegister(uint16_t BKP_DR, uint16_t Data)
|
| | | {
|
| | | __IO uint32_t tmp = 0;
|
| | |
|
| | | /* Check the parameters */
|
| | | assert_param(IS_BKP_DR(BKP_DR));
|
| | |
|
| | | tmp = (uint32_t)BKP_BASE; |
| | | tmp += BKP_DR;
|
| | |
|
| | | *(__IO uint32_t *) tmp = Data;
|
| | | }
|
| | |
|
| | | /**
|
| | | * @brief Reads data from the specified Data Backup Register.
|
| | | * @param BKP_DR: specifies the Data Backup Register.
|
| | | * This parameter can be BKP_DRx where x:[1, 42]
|
| | | * @retval The content of the specified Data Backup Register
|
| | | */
|
| | | uint16_t BKP_ReadBackupRegister(uint16_t BKP_DR)
|
| | | {
|
| | | __IO uint32_t tmp = 0;
|
| | |
|
| | | /* Check the parameters */
|
| | | assert_param(IS_BKP_DR(BKP_DR));
|
| | |
|
| | | tmp = (uint32_t)BKP_BASE; |
| | | tmp += BKP_DR;
|
| | |
|
| | | return (*(__IO uint16_t *) tmp);
|
| | | }
|
| | |
|
| | | /**
|
| | | * @brief Checks whether the Tamper Pin Event flag is set or not.
|
| | | * @param None
|
| | | * @retval The new state of the Tamper Pin Event flag (SET or RESET).
|
| | | */
|
| | | FlagStatus BKP_GetFlagStatus(void)
|
| | | {
|
| | | return (FlagStatus)(*(__IO uint32_t *) CSR_TEF_BB);
|
| | | }
|
| | |
|
| | | /**
|
| | | * @brief Clears Tamper Pin Event pending flag.
|
| | | * @param None
|
| | | * @retval None
|
| | | */
|
| | | void BKP_ClearFlag(void)
|
| | | {
|
| | | /* Set CTE bit to clear Tamper Pin Event flag */
|
| | | BKP->CSR |= BKP_CSR_CTE;
|
| | | }
|
| | |
|
| | | /**
|
| | | * @brief Checks whether the Tamper Pin Interrupt has occurred or not.
|
| | | * @param None
|
| | | * @retval The new state of the Tamper Pin Interrupt (SET or RESET).
|
| | | */
|
| | | ITStatus BKP_GetITStatus(void)
|
| | | {
|
| | | return (ITStatus)(*(__IO uint32_t *) CSR_TIF_BB);
|
| | | }
|
| | |
|
| | | /**
|
| | | * @brief Clears Tamper Pin Interrupt pending bit.
|
| | | * @param None
|
| | | * @retval None
|
| | | */
|
| | | void BKP_ClearITPendingBit(void)
|
| | | {
|
| | | /* Set CTI bit to clear Tamper Pin Interrupt pending bit */
|
| | | BKP->CSR |= BKP_CSR_CTI;
|
| | | }
|
| | |
|
| | | /**
|
| | | * @}
|
| | | */
|
| | |
|
| | | /**
|
| | | * @}
|
| | | */
|
| | |
|
| | | /**
|
| | | * @}
|
| | | */
|
| | |
|
| | | /******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/
|
| | | /** |
| | | ****************************************************************************** |
| | | * @file stm32f10x_bkp.c |
| | | * @author MCD Application Team |
| | | * @version V3.5.0 |
| | | * @date 11-March-2011 |
| | | * @brief This file provides all the BKP firmware functions. |
| | | ****************************************************************************** |
| | | * @attention |
| | | * |
| | | * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS |
| | | * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE |
| | | * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY |
| | | * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING |
| | | * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE |
| | | * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS. |
| | | * |
| | | * <h2><center>© COPYRIGHT 2011 STMicroelectronics</center></h2> |
| | | ****************************************************************************** |
| | | */ |
| | | |
| | | /* Includes ------------------------------------------------------------------*/ |
| | | #include "stm32f10x_bkp.h" |
| | | #include "stm32f10x_rcc.h" |
| | | |
| | | /** @addtogroup STM32F10x_StdPeriph_Driver |
| | | * @{ |
| | | */ |
| | | |
| | | /** @defgroup BKP |
| | | * @brief BKP driver modules |
| | | * @{ |
| | | */ |
| | | |
| | | /** @defgroup BKP_Private_TypesDefinitions |
| | | * @{ |
| | | */ |
| | | |
| | | /** |
| | | * @} |
| | | */ |
| | | |
| | | /** @defgroup BKP_Private_Defines |
| | | * @{ |
| | | */ |
| | | |
| | | /* ------------ BKP registers bit address in the alias region --------------- */ |
| | | #define BKP_OFFSET (BKP_BASE - PERIPH_BASE) |
| | | |
| | | /* --- CR Register ----*/ |
| | | |
| | | /* Alias word address of TPAL bit */ |
| | | #define CR_OFFSET (BKP_OFFSET + 0x30) |
| | | #define TPAL_BitNumber 0x01 |
| | | #define CR_TPAL_BB (PERIPH_BB_BASE + (CR_OFFSET * 32) + (TPAL_BitNumber * 4)) |
| | | |
| | | /* Alias word address of TPE bit */ |
| | | #define TPE_BitNumber 0x00 |
| | | #define CR_TPE_BB (PERIPH_BB_BASE + (CR_OFFSET * 32) + (TPE_BitNumber * 4)) |
| | | |
| | | /* --- CSR Register ---*/ |
| | | |
| | | /* Alias word address of TPIE bit */ |
| | | #define CSR_OFFSET (BKP_OFFSET + 0x34) |
| | | #define TPIE_BitNumber 0x02 |
| | | #define CSR_TPIE_BB (PERIPH_BB_BASE + (CSR_OFFSET * 32) + (TPIE_BitNumber * 4)) |
| | | |
| | | /* Alias word address of TIF bit */ |
| | | #define TIF_BitNumber 0x09 |
| | | #define CSR_TIF_BB (PERIPH_BB_BASE + (CSR_OFFSET * 32) + (TIF_BitNumber * 4)) |
| | | |
| | | /* Alias word address of TEF bit */ |
| | | #define TEF_BitNumber 0x08 |
| | | #define CSR_TEF_BB (PERIPH_BB_BASE + (CSR_OFFSET * 32) + (TEF_BitNumber * 4)) |
| | | |
| | | /* ---------------------- BKP registers bit mask ------------------------ */ |
| | | |
| | | /* RTCCR register bit mask */ |
| | | #define RTCCR_CAL_MASK ((uint16_t)0xFF80) |
| | | #define RTCCR_MASK ((uint16_t)0xFC7F) |
| | | |
| | | /** |
| | | * @} |
| | | */ |
| | | |
| | | |
| | | /** @defgroup BKP_Private_Macros |
| | | * @{ |
| | | */ |
| | | |
| | | /** |
| | | * @} |
| | | */ |
| | | |
| | | /** @defgroup BKP_Private_Variables |
| | | * @{ |
| | | */ |
| | | |
| | | /** |
| | | * @} |
| | | */ |
| | | |
| | | /** @defgroup BKP_Private_FunctionPrototypes |
| | | * @{ |
| | | */ |
| | | |
| | | /** |
| | | * @} |
| | | */ |
| | | |
| | | /** @defgroup BKP_Private_Functions |
| | | * @{ |
| | | */ |
| | | |
| | | /** |
| | | * @brief Deinitializes the BKP peripheral registers to their default reset values. |
| | | * @param None |
| | | * @retval None |
| | | */ |
| | | void BKP_DeInit(void) |
| | | { |
| | | RCC_BackupResetCmd(ENABLE); |
| | | RCC_BackupResetCmd(DISABLE); |
| | | } |
| | | |
| | | /** |
| | | * @brief Configures the Tamper Pin active level. |
| | | * @param BKP_TamperPinLevel: specifies the Tamper Pin active level. |
| | | * This parameter can be one of the following values: |
| | | * @arg BKP_TamperPinLevel_High: Tamper pin active on high level |
| | | * @arg BKP_TamperPinLevel_Low: Tamper pin active on low level |
| | | * @retval None |
| | | */ |
| | | void BKP_TamperPinLevelConfig(uint16_t BKP_TamperPinLevel) |
| | | { |
| | | /* Check the parameters */ |
| | | assert_param(IS_BKP_TAMPER_PIN_LEVEL(BKP_TamperPinLevel)); |
| | | *(__IO uint32_t *) CR_TPAL_BB = BKP_TamperPinLevel; |
| | | } |
| | | |
| | | /** |
| | | * @brief Enables or disables the Tamper Pin activation. |
| | | * @param NewState: new state of the Tamper Pin activation. |
| | | * This parameter can be: ENABLE or DISABLE. |
| | | * @retval None |
| | | */ |
| | | void BKP_TamperPinCmd(FunctionalState NewState) |
| | | { |
| | | /* Check the parameters */ |
| | | assert_param(IS_FUNCTIONAL_STATE(NewState)); |
| | | *(__IO uint32_t *) CR_TPE_BB = (uint32_t)NewState; |
| | | } |
| | | |
| | | /** |
| | | * @brief Enables or disables the Tamper Pin Interrupt. |
| | | * @param NewState: new state of the Tamper Pin Interrupt. |
| | | * This parameter can be: ENABLE or DISABLE. |
| | | * @retval None |
| | | */ |
| | | void BKP_ITConfig(FunctionalState NewState) |
| | | { |
| | | /* Check the parameters */ |
| | | assert_param(IS_FUNCTIONAL_STATE(NewState)); |
| | | *(__IO uint32_t *) CSR_TPIE_BB = (uint32_t)NewState; |
| | | } |
| | | |
| | | /** |
| | | * @brief Select the RTC output source to output on the Tamper pin. |
| | | * @param BKP_RTCOutputSource: specifies the RTC output source. |
| | | * This parameter can be one of the following values: |
| | | * @arg BKP_RTCOutputSource_None: no RTC output on the Tamper pin. |
| | | * @arg BKP_RTCOutputSource_CalibClock: output the RTC clock with frequency |
| | | * divided by 64 on the Tamper pin. |
| | | * @arg BKP_RTCOutputSource_Alarm: output the RTC Alarm pulse signal on |
| | | * the Tamper pin. |
| | | * @arg BKP_RTCOutputSource_Second: output the RTC Second pulse signal on |
| | | * the Tamper pin. |
| | | * @retval None |
| | | */ |
| | | void BKP_RTCOutputConfig(uint16_t BKP_RTCOutputSource) |
| | | { |
| | | uint16_t tmpreg = 0; |
| | | /* Check the parameters */ |
| | | assert_param(IS_BKP_RTC_OUTPUT_SOURCE(BKP_RTCOutputSource)); |
| | | tmpreg = BKP->RTCCR; |
| | | /* Clear CCO, ASOE and ASOS bits */ |
| | | tmpreg &= RTCCR_MASK; |
| | | |
| | | /* Set CCO, ASOE and ASOS bits according to BKP_RTCOutputSource value */ |
| | | tmpreg |= BKP_RTCOutputSource; |
| | | /* Store the new value */ |
| | | BKP->RTCCR = tmpreg; |
| | | } |
| | | |
| | | /** |
| | | * @brief Sets RTC Clock Calibration value. |
| | | * @param CalibrationValue: specifies the RTC Clock Calibration value. |
| | | * This parameter must be a number between 0 and 0x7F. |
| | | * @retval None |
| | | */ |
| | | void BKP_SetRTCCalibrationValue(uint8_t CalibrationValue) |
| | | { |
| | | uint16_t tmpreg = 0; |
| | | /* Check the parameters */ |
| | | assert_param(IS_BKP_CALIBRATION_VALUE(CalibrationValue)); |
| | | tmpreg = BKP->RTCCR; |
| | | /* Clear CAL[6:0] bits */ |
| | | tmpreg &= RTCCR_CAL_MASK; |
| | | /* Set CAL[6:0] bits according to CalibrationValue value */ |
| | | tmpreg |= CalibrationValue; |
| | | /* Store the new value */ |
| | | BKP->RTCCR = tmpreg; |
| | | } |
| | | |
| | | /** |
| | | * @brief Writes user data to the specified Data Backup Register. |
| | | * @param BKP_DR: specifies the Data Backup Register. |
| | | * This parameter can be BKP_DRx where x:[1, 42] |
| | | * @param Data: data to write |
| | | * @retval None |
| | | */ |
| | | void BKP_WriteBackupRegister(uint16_t BKP_DR, uint16_t Data) |
| | | { |
| | | __IO uint32_t tmp = 0; |
| | | |
| | | /* Check the parameters */ |
| | | assert_param(IS_BKP_DR(BKP_DR)); |
| | | |
| | | tmp = (uint32_t)BKP_BASE; |
| | | tmp += BKP_DR; |
| | | |
| | | *(__IO uint32_t *) tmp = Data; |
| | | } |
| | | |
| | | /** |
| | | * @brief Reads data from the specified Data Backup Register. |
| | | * @param BKP_DR: specifies the Data Backup Register. |
| | | * This parameter can be BKP_DRx where x:[1, 42] |
| | | * @retval The content of the specified Data Backup Register |
| | | */ |
| | | uint16_t BKP_ReadBackupRegister(uint16_t BKP_DR) |
| | | { |
| | | __IO uint32_t tmp = 0; |
| | | |
| | | /* Check the parameters */ |
| | | assert_param(IS_BKP_DR(BKP_DR)); |
| | | |
| | | tmp = (uint32_t)BKP_BASE; |
| | | tmp += BKP_DR; |
| | | |
| | | return (*(__IO uint16_t *) tmp); |
| | | } |
| | | |
| | | /** |
| | | * @brief Checks whether the Tamper Pin Event flag is set or not. |
| | | * @param None |
| | | * @retval The new state of the Tamper Pin Event flag (SET or RESET). |
| | | */ |
| | | FlagStatus BKP_GetFlagStatus(void) |
| | | { |
| | | return (FlagStatus)(*(__IO uint32_t *) CSR_TEF_BB); |
| | | } |
| | | |
| | | /** |
| | | * @brief Clears Tamper Pin Event pending flag. |
| | | * @param None |
| | | * @retval None |
| | | */ |
| | | void BKP_ClearFlag(void) |
| | | { |
| | | /* Set CTE bit to clear Tamper Pin Event flag */ |
| | | BKP->CSR |= BKP_CSR_CTE; |
| | | } |
| | | |
| | | /** |
| | | * @brief Checks whether the Tamper Pin Interrupt has occurred or not. |
| | | * @param None |
| | | * @retval The new state of the Tamper Pin Interrupt (SET or RESET). |
| | | */ |
| | | ITStatus BKP_GetITStatus(void) |
| | | { |
| | | return (ITStatus)(*(__IO uint32_t *) CSR_TIF_BB); |
| | | } |
| | | |
| | | /** |
| | | * @brief Clears Tamper Pin Interrupt pending bit. |
| | | * @param None |
| | | * @retval None |
| | | */ |
| | | void BKP_ClearITPendingBit(void) |
| | | { |
| | | /* Set CTI bit to clear Tamper Pin Interrupt pending bit */ |
| | | BKP->CSR |= BKP_CSR_CTI; |
| | | } |
| | | |
| | | /** |
| | | * @} |
| | | */ |
| | | |
| | | /** |
| | | * @} |
| | | */ |
| | | |
| | | /** |
| | | * @} |
| | | */ |
| | | |
| | | /******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/ |