Takaaki Numai / mbed-dev

inport from local

Dependents:   Hobbyking_Cheetah_0511

targets/TARGET_STM/TARGET_STM32F4/device/stm32f4xx_ll_crc.c@0:85b3fd62ea1a, 2020-03-16 (annotated)

Committer:
NYX
Date:
Mon Mar 16 06:35:48 2020 +0000
Revision:
0:85b3fd62ea1a
reinport to mbed;

Who changed what in which revision?

UserRevisionLine numberNew contents of line
NYX 0:85b3fd62ea1a 1 /**
NYX 0:85b3fd62ea1a 2 ******************************************************************************
NYX 0:85b3fd62ea1a 3 * @file stm32f4xx_ll_crc.c
NYX 0:85b3fd62ea1a 4 * @author MCD Application Team
NYX 0:85b3fd62ea1a 5 * @version V1.7.1
NYX 0:85b3fd62ea1a 6 * @date 14-April-2017
NYX 0:85b3fd62ea1a 7 * @brief CRC LL module driver.
NYX 0:85b3fd62ea1a 8 ******************************************************************************
NYX 0:85b3fd62ea1a 9 * @attention
NYX 0:85b3fd62ea1a 10 *
NYX 0:85b3fd62ea1a 11 * <h2><center>&copy; COPYRIGHT(c) 2017 STMicroelectronics</center></h2>
NYX 0:85b3fd62ea1a 12 *
NYX 0:85b3fd62ea1a 13 * Redistribution and use in source and binary forms, with or without modification,
NYX 0:85b3fd62ea1a 14 * are permitted provided that the following conditions are met:
NYX 0:85b3fd62ea1a 15 * 1. Redistributions of source code must retain the above copyright notice,
NYX 0:85b3fd62ea1a 16 * this list of conditions and the following disclaimer.
NYX 0:85b3fd62ea1a 17 * 2. Redistributions in binary form must reproduce the above copyright notice,
NYX 0:85b3fd62ea1a 18 * this list of conditions and the following disclaimer in the documentation
NYX 0:85b3fd62ea1a 19 * and/or other materials provided with the distribution.
NYX 0:85b3fd62ea1a 20 * 3. Neither the name of STMicroelectronics nor the names of its contributors
NYX 0:85b3fd62ea1a 21 * may be used to endorse or promote products derived from this software
NYX 0:85b3fd62ea1a 22 * without specific prior written permission.
NYX 0:85b3fd62ea1a 23 *
NYX 0:85b3fd62ea1a 24 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
NYX 0:85b3fd62ea1a 25 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
NYX 0:85b3fd62ea1a 26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
NYX 0:85b3fd62ea1a 27 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
NYX 0:85b3fd62ea1a 28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
NYX 0:85b3fd62ea1a 29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
NYX 0:85b3fd62ea1a 30 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
NYX 0:85b3fd62ea1a 31 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
NYX 0:85b3fd62ea1a 32 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
NYX 0:85b3fd62ea1a 33 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
NYX 0:85b3fd62ea1a 34 *
NYX 0:85b3fd62ea1a 35 ******************************************************************************
NYX 0:85b3fd62ea1a 36 */
NYX 0:85b3fd62ea1a 37 #if defined(USE_FULL_LL_DRIVER)
NYX 0:85b3fd62ea1a 38
NYX 0:85b3fd62ea1a 39 /* Includes ------------------------------------------------------------------*/
NYX 0:85b3fd62ea1a 40 #include "stm32f4xx_ll_crc.h"
NYX 0:85b3fd62ea1a 41 #include "stm32f4xx_ll_bus.h"
NYX 0:85b3fd62ea1a 42
NYX 0:85b3fd62ea1a 43 #ifdef USE_FULL_ASSERT
NYX 0:85b3fd62ea1a 44 #include "stm32_assert.h"
NYX 0:85b3fd62ea1a 45 #else
NYX 0:85b3fd62ea1a 46 #define assert_param(expr) ((void)0U)
NYX 0:85b3fd62ea1a 47 #endif
NYX 0:85b3fd62ea1a 48
NYX 0:85b3fd62ea1a 49 /** @addtogroup STM32F4xx_LL_Driver
NYX 0:85b3fd62ea1a 50 * @{
NYX 0:85b3fd62ea1a 51 */
NYX 0:85b3fd62ea1a 52
NYX 0:85b3fd62ea1a 53 #if defined (CRC)
NYX 0:85b3fd62ea1a 54
NYX 0:85b3fd62ea1a 55 /** @addtogroup CRC_LL
NYX 0:85b3fd62ea1a 56 * @{
NYX 0:85b3fd62ea1a 57 */
NYX 0:85b3fd62ea1a 58
NYX 0:85b3fd62ea1a 59 /* Private types -------------------------------------------------------------*/
NYX 0:85b3fd62ea1a 60 /* Private variables ---------------------------------------------------------*/
NYX 0:85b3fd62ea1a 61 /* Private constants ---------------------------------------------------------*/
NYX 0:85b3fd62ea1a 62 /* Private macros ------------------------------------------------------------*/
NYX 0:85b3fd62ea1a 63 /* Private function prototypes -----------------------------------------------*/
NYX 0:85b3fd62ea1a 64
NYX 0:85b3fd62ea1a 65 /* Exported functions --------------------------------------------------------*/
NYX 0:85b3fd62ea1a 66 /** @addtogroup CRC_LL_Exported_Functions
NYX 0:85b3fd62ea1a 67 * @{
NYX 0:85b3fd62ea1a 68 */
NYX 0:85b3fd62ea1a 69
NYX 0:85b3fd62ea1a 70 /** @addtogroup CRC_LL_EF_Init
NYX 0:85b3fd62ea1a 71 * @{
NYX 0:85b3fd62ea1a 72 */
NYX 0:85b3fd62ea1a 73
NYX 0:85b3fd62ea1a 74 /**
NYX 0:85b3fd62ea1a 75 * @brief De-initialize CRC registers (Registers restored to their default values).
NYX 0:85b3fd62ea1a 76 * @param CRCx CRC Instance
NYX 0:85b3fd62ea1a 77 * @retval An ErrorStatus enumeration value:
NYX 0:85b3fd62ea1a 78 * - SUCCESS: CRC registers are de-initialized
NYX 0:85b3fd62ea1a 79 * - ERROR: CRC registers are not de-initialized
NYX 0:85b3fd62ea1a 80 */
NYX 0:85b3fd62ea1a 81 ErrorStatus LL_CRC_DeInit(CRC_TypeDef *CRCx)
NYX 0:85b3fd62ea1a 82 {
NYX 0:85b3fd62ea1a 83 ErrorStatus status = SUCCESS;
NYX 0:85b3fd62ea1a 84
NYX 0:85b3fd62ea1a 85 /* Check the parameters */
NYX 0:85b3fd62ea1a 86 assert_param(IS_CRC_ALL_INSTANCE(CRCx));
NYX 0:85b3fd62ea1a 87
NYX 0:85b3fd62ea1a 88 if (CRCx == CRC)
NYX 0:85b3fd62ea1a 89 {
NYX 0:85b3fd62ea1a 90 /* Force CRC reset */
NYX 0:85b3fd62ea1a 91 LL_AHB1_GRP1_ForceReset(LL_AHB1_GRP1_PERIPH_CRC);
NYX 0:85b3fd62ea1a 92
NYX 0:85b3fd62ea1a 93 /* Release CRC reset */
NYX 0:85b3fd62ea1a 94 LL_AHB1_GRP1_ReleaseReset(LL_AHB1_GRP1_PERIPH_CRC);
NYX 0:85b3fd62ea1a 95 }
NYX 0:85b3fd62ea1a 96 else
NYX 0:85b3fd62ea1a 97 {
NYX 0:85b3fd62ea1a 98 status = ERROR;
NYX 0:85b3fd62ea1a 99 }
NYX 0:85b3fd62ea1a 100
NYX 0:85b3fd62ea1a 101 return (status);
NYX 0:85b3fd62ea1a 102 }
NYX 0:85b3fd62ea1a 103
NYX 0:85b3fd62ea1a 104 /**
NYX 0:85b3fd62ea1a 105 * @}
NYX 0:85b3fd62ea1a 106 */
NYX 0:85b3fd62ea1a 107
NYX 0:85b3fd62ea1a 108 /**
NYX 0:85b3fd62ea1a 109 * @}
NYX 0:85b3fd62ea1a 110 */
NYX 0:85b3fd62ea1a 111
NYX 0:85b3fd62ea1a 112 /**
NYX 0:85b3fd62ea1a 113 * @}
NYX 0:85b3fd62ea1a 114 */
NYX 0:85b3fd62ea1a 115
NYX 0:85b3fd62ea1a 116 #endif /* defined (CRC) */
NYX 0:85b3fd62ea1a 117
NYX 0:85b3fd62ea1a 118 /**
NYX 0:85b3fd62ea1a 119 * @}
NYX 0:85b3fd62ea1a 120 */
NYX 0:85b3fd62ea1a 121
NYX 0:85b3fd62ea1a 122 #endif /* USE_FULL_LL_DRIVER */
NYX 0:85b3fd62ea1a 123
NYX 0:85b3fd62ea1a 124 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
NYX 0:85b3fd62ea1a 125