Mercurial > public > ostc4
view Common/Drivers/STM32F4xx_HAL_Driver/Inc/stm32f4xx_hal_crc.h @ 232:f0069f002c55 div-fixes-4-1
Bugfix: make date/time setting work over reboots
Setting the time/date over the UART interface or by the menu, seems
to work, but a reboot of the RTE brings back strange, seemingly
random, time.
The reason for this is rather simple. In the settings, a time
is stored, based on some flawed logic, and that time was restored
on reboot. There is no reason to store any time, when the moment of
restoring it is unrelated in time. So, the fix is simple: do not
set time (in the RTC) based on some time from the past. The whole idea
of a RTC is that it does preserve the time for you, as long its
powered. Any attempt to do things better using stored time data is
futile (and nonsense).
And while working on his, also kick out some useless code from the RTE.
There is no reason to initialize the time on the RTC to some random
time/date in the past. A zero data/time is as good and any random
date.
Signed-off-by: Jan Mulder <jlmulder@xs4all.nl>
author | Jan Mulder <jlmulder@xs4all.nl> |
---|---|
date | Wed, 03 Apr 2019 21:11:56 +0200 |
parents | c78bcbd5deda |
children |
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/** ****************************************************************************** * @file stm32f4xx_hal_crc.h * @author MCD Application Team * @brief Header file of CRC HAL module. ****************************************************************************** * @attention * * <h2><center>© COPYRIGHT(c) 2017 STMicroelectronics</center></h2> * * Redistribution and use in source and binary forms, with or without modification, * are permitted provided that the following conditions are met: * 1. Redistributions of source code must retain the above copyright notice, * this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright notice, * this list of conditions and the following disclaimer in the documentation * and/or other materials provided with the distribution. * 3. Neither the name of STMicroelectronics nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * ****************************************************************************** */ /* Define to prevent recursive inclusion -------------------------------------*/ #ifndef __STM32F4xx_HAL_CRC_H #define __STM32F4xx_HAL_CRC_H #ifdef __cplusplus extern "C" { #endif /* Includes ------------------------------------------------------------------*/ #include "stm32f4xx_hal_def.h" /** @addtogroup STM32F4xx_HAL_Driver * @{ */ /** @defgroup CRC CRC * @brief CRC HAL module driver * @{ */ /* Exported types ------------------------------------------------------------*/ /** @defgroup CRC_Exported_Types CRC Exported Types * @{ */ /** @defgroup CRC_Exported_Types_Group1 CRC State Structure definition * @{ */ typedef enum { HAL_CRC_STATE_RESET = 0x00U, /*!< CRC not yet initialized or disabled */ HAL_CRC_STATE_READY = 0x01U, /*!< CRC initialized and ready for use */ HAL_CRC_STATE_BUSY = 0x02U, /*!< CRC internal process is ongoing */ HAL_CRC_STATE_TIMEOUT = 0x03U, /*!< CRC timeout state */ HAL_CRC_STATE_ERROR = 0x04U /*!< CRC error state */ }HAL_CRC_StateTypeDef; /** * @} */ /** @defgroup CRC_Exported_Types_Group2 CRC Handle Structure definition * @{ */ typedef struct { CRC_TypeDef *Instance; /*!< Register base address */ HAL_LockTypeDef Lock; /*!< CRC locking object */ __IO HAL_CRC_StateTypeDef State; /*!< CRC communication state */ }CRC_HandleTypeDef; /** * @} */ /** * @} */ /* Exported constants --------------------------------------------------------*/ /* Exported macro ------------------------------------------------------------*/ /** @defgroup CRC_Exported_Macros CRC Exported Macros * @{ */ /** @brief Resets CRC handle state * @param __HANDLE__ CRC handle * @retval None */ #define __HAL_CRC_RESET_HANDLE_STATE(__HANDLE__) ((__HANDLE__)->State = HAL_CRC_STATE_RESET) /** * @brief Resets CRC Data Register. * @param __HANDLE__ CRC handle * @retval None */ #define __HAL_CRC_DR_RESET(__HANDLE__) ((__HANDLE__)->Instance->CR |= CRC_CR_RESET) /** * @brief Stores a 8-bit data in the Independent Data(ID) register. * @param __HANDLE__ CRC handle * @param __VALUE__ 8-bit value to be stored in the ID register * @retval None */ #define __HAL_CRC_SET_IDR(__HANDLE__, __VALUE__) (WRITE_REG((__HANDLE__)->Instance->IDR, (__VALUE__))) /** * @brief Returns the 8-bit data stored in the Independent Data(ID) register. * @param __HANDLE__ CRC handle * @retval 8-bit value of the ID register */ #define __HAL_CRC_GET_IDR(__HANDLE__) (((__HANDLE__)->Instance->IDR) & CRC_IDR_IDR) /** * @} */ /* Exported functions --------------------------------------------------------*/ /** @defgroup CRC_Exported_Functions CRC Exported Functions * @{ */ /** @defgroup CRC_Exported_Functions_Group1 Initialization and de-initialization functions * @{ */ HAL_StatusTypeDef HAL_CRC_Init(CRC_HandleTypeDef *hcrc); HAL_StatusTypeDef HAL_CRC_DeInit (CRC_HandleTypeDef *hcrc); void HAL_CRC_MspInit(CRC_HandleTypeDef *hcrc); void HAL_CRC_MspDeInit(CRC_HandleTypeDef *hcrc); /** * @} */ /** @defgroup CRC_Exported_Functions_Group2 Peripheral Control functions * @{ */ uint32_t HAL_CRC_Accumulate(CRC_HandleTypeDef *hcrc, uint32_t pBuffer[], uint32_t BufferLength); uint32_t HAL_CRC_Calculate(CRC_HandleTypeDef *hcrc, uint32_t pBuffer[], uint32_t BufferLength); /** * @} */ /** @defgroup CRC_Exported_Functions_Group3 Peripheral State functions * @{ */ HAL_CRC_StateTypeDef HAL_CRC_GetState(CRC_HandleTypeDef *hcrc); /** * @} */ /** * @} */ /* Private types -------------------------------------------------------------*/ /** @defgroup CRC_Private_Types CRC Private Types * @{ */ /** * @} */ /* Private defines -----------------------------------------------------------*/ /** @defgroup CRC_Private_Defines CRC Private Defines * @{ */ /** * @} */ /* Private variables ---------------------------------------------------------*/ /** @defgroup CRC_Private_Variables CRC Private Variables * @{ */ /** * @} */ /* Private constants ---------------------------------------------------------*/ /** @defgroup CRC_Private_Constants CRC Private Constants * @{ */ /** * @} */ /* Private macros ------------------------------------------------------------*/ /** @defgroup CRC_Private_Macros CRC Private Macros * @{ */ /** * @} */ /* Private functions prototypes ----------------------------------------------*/ /** @defgroup CRC_Private_Functions_Prototypes CRC Private Functions Prototypes * @{ */ /** * @} */ /* Private functions ---------------------------------------------------------*/ /** @defgroup CRC_Private_Functions CRC Private Functions * @{ */ /** * @} */ /** * @} */ /** * @} */ #ifdef __cplusplus } #endif #endif /* __STM32F4xx_HAL_CRC_H */ /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/