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targets/TARGET_STM/TARGET_STM32F1/device/stm32f1xx_ll_crc.c@182:57724642e740, 2018-02-16 (annotated)

Committer:
AnnaBridge
Date:
Fri Feb 16 16:09:33 2018 +0000
Revision:
182:57724642e740
Parent:
165:e614a9f1c9e2 
mbed-dev library. Release version 159.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
<> 154:37f96f9d4de2 1 /**
<> 154:37f96f9d4de2 2 ******************************************************************************
<> 154:37f96f9d4de2 3 * @file stm32f1xx_ll_crc.c
<> 154:37f96f9d4de2 4 * @author MCD Application Team
AnnaBridge 165:e614a9f1c9e2 5 * @version V1.1.0
AnnaBridge 165:e614a9f1c9e2 6 * @date 14-April-2017
<> 154:37f96f9d4de2 7 * @brief CRC LL module driver.
<> 154:37f96f9d4de2 8 ******************************************************************************
<> 154:37f96f9d4de2 9 * @attention
<> 154:37f96f9d4de2 10 *
<> 154:37f96f9d4de2 11 * <h2><center>&copy; COPYRIGHT(c) 2016 STMicroelectronics</center></h2>
<> 154:37f96f9d4de2 12 *
<> 154:37f96f9d4de2 13 * Redistribution and use in source and binary forms, with or without modification,
<> 154:37f96f9d4de2 14 * are permitted provided that the following conditions are met:
<> 154:37f96f9d4de2 15 * 1. Redistributions of source code must retain the above copyright notice,
<> 154:37f96f9d4de2 16 * this list of conditions and the following disclaimer.
<> 154:37f96f9d4de2 17 * 2. Redistributions in binary form must reproduce the above copyright notice,
<> 154:37f96f9d4de2 18 * this list of conditions and the following disclaimer in the documentation
<> 154:37f96f9d4de2 19 * and/or other materials provided with the distribution.
<> 154:37f96f9d4de2 20 * 3. Neither the name of STMicroelectronics nor the names of its contributors
<> 154:37f96f9d4de2 21 * may be used to endorse or promote products derived from this software
<> 154:37f96f9d4de2 22 * without specific prior written permission.
<> 154:37f96f9d4de2 23 *
<> 154:37f96f9d4de2 24 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
<> 154:37f96f9d4de2 25 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
<> 154:37f96f9d4de2 26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
<> 154:37f96f9d4de2 27 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
<> 154:37f96f9d4de2 28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
<> 154:37f96f9d4de2 29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
<> 154:37f96f9d4de2 30 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
<> 154:37f96f9d4de2 31 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
<> 154:37f96f9d4de2 32 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
<> 154:37f96f9d4de2 33 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
<> 154:37f96f9d4de2 34 *
<> 154:37f96f9d4de2 35 ******************************************************************************
<> 154:37f96f9d4de2 36 */
<> 154:37f96f9d4de2 37 #if defined(USE_FULL_LL_DRIVER)
<> 154:37f96f9d4de2 38
<> 154:37f96f9d4de2 39 /* Includes ------------------------------------------------------------------*/
<> 154:37f96f9d4de2 40 #include "stm32f1xx_ll_crc.h"
<> 154:37f96f9d4de2 41 #include "stm32f1xx_ll_bus.h"
<> 154:37f96f9d4de2 42
<> 154:37f96f9d4de2 43 #ifdef USE_FULL_ASSERT
<> 154:37f96f9d4de2 44 #include "stm32_assert.h"
<> 154:37f96f9d4de2 45 #else
<> 154:37f96f9d4de2 46 #define assert_param(expr) ((void)0U)
<> 154:37f96f9d4de2 47 #endif
<> 154:37f96f9d4de2 48
<> 154:37f96f9d4de2 49 /** @addtogroup STM32F1xx_LL_Driver
<> 154:37f96f9d4de2 50 * @{
<> 154:37f96f9d4de2 51 */
<> 154:37f96f9d4de2 52
<> 154:37f96f9d4de2 53 #if defined (CRC)
<> 154:37f96f9d4de2 54
<> 154:37f96f9d4de2 55 /** @addtogroup CRC_LL
<> 154:37f96f9d4de2 56 * @{
<> 154:37f96f9d4de2 57 */
<> 154:37f96f9d4de2 58
<> 154:37f96f9d4de2 59 /* Private types -------------------------------------------------------------*/
<> 154:37f96f9d4de2 60 /* Private variables ---------------------------------------------------------*/
<> 154:37f96f9d4de2 61 /* Private constants ---------------------------------------------------------*/
<> 154:37f96f9d4de2 62 /* Private macros ------------------------------------------------------------*/
<> 154:37f96f9d4de2 63 /* Private function prototypes -----------------------------------------------*/
<> 154:37f96f9d4de2 64
<> 154:37f96f9d4de2 65 /* Exported functions --------------------------------------------------------*/
<> 154:37f96f9d4de2 66 /** @addtogroup CRC_LL_Exported_Functions
<> 154:37f96f9d4de2 67 * @{
<> 154:37f96f9d4de2 68 */
<> 154:37f96f9d4de2 69
<> 154:37f96f9d4de2 70 /** @addtogroup CRC_LL_EF_Init
<> 154:37f96f9d4de2 71 * @{
<> 154:37f96f9d4de2 72 */
<> 154:37f96f9d4de2 73
<> 154:37f96f9d4de2 74 /**
<> 154:37f96f9d4de2 75 * @brief De-initialize CRC registers (Registers restored to their default values).
<> 154:37f96f9d4de2 76 * @param CRCx CRC Instance
<> 154:37f96f9d4de2 77 * @retval An ErrorStatus enumeration value:
<> 154:37f96f9d4de2 78 * - SUCCESS: CRC registers are de-initialized
<> 154:37f96f9d4de2 79 * - ERROR: CRC registers are not de-initialized
<> 154:37f96f9d4de2 80 */
<> 154:37f96f9d4de2 81 ErrorStatus LL_CRC_DeInit(CRC_TypeDef *CRCx)
<> 154:37f96f9d4de2 82 {
<> 154:37f96f9d4de2 83 ErrorStatus status = SUCCESS;
<> 154:37f96f9d4de2 84
<> 154:37f96f9d4de2 85 /* Check the parameters */
<> 154:37f96f9d4de2 86 assert_param(IS_CRC_ALL_INSTANCE(CRCx));
<> 154:37f96f9d4de2 87
<> 154:37f96f9d4de2 88 if (CRCx == CRC)
<> 154:37f96f9d4de2 89 {
<> 154:37f96f9d4de2 90
<> 154:37f96f9d4de2 91 /* Reset the CRC calculation unit */
<> 154:37f96f9d4de2 92 LL_CRC_ResetCRCCalculationUnit(CRCx);
<> 154:37f96f9d4de2 93
<> 154:37f96f9d4de2 94 /* Reset IDR register */
<> 154:37f96f9d4de2 95 LL_CRC_Write_IDR(CRCx, 0x00U);
<> 154:37f96f9d4de2 96 }
<> 154:37f96f9d4de2 97 else
<> 154:37f96f9d4de2 98 {
<> 154:37f96f9d4de2 99 status = ERROR;
<> 154:37f96f9d4de2 100 }
<> 154:37f96f9d4de2 101
<> 154:37f96f9d4de2 102 return (status);
<> 154:37f96f9d4de2 103 }
<> 154:37f96f9d4de2 104
<> 154:37f96f9d4de2 105 /**
<> 154:37f96f9d4de2 106 * @}
<> 154:37f96f9d4de2 107 */
<> 154:37f96f9d4de2 108
<> 154:37f96f9d4de2 109 /**
<> 154:37f96f9d4de2 110 * @}
<> 154:37f96f9d4de2 111 */
<> 154:37f96f9d4de2 112
<> 154:37f96f9d4de2 113 /**
<> 154:37f96f9d4de2 114 * @}
<> 154:37f96f9d4de2 115 */
<> 154:37f96f9d4de2 116
<> 154:37f96f9d4de2 117 #endif /* defined (CRC) */
<> 154:37f96f9d4de2 118
<> 154:37f96f9d4de2 119 /**
<> 154:37f96f9d4de2 120 * @}
<> 154:37f96f9d4de2 121 */
<> 154:37f96f9d4de2 122
<> 154:37f96f9d4de2 123 #endif /* USE_FULL_LL_DRIVER */
<> 154:37f96f9d4de2 124
<> 154:37f96f9d4de2 125 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
<> 154:37f96f9d4de2 126