Janek Mann / mbed-src-openwear

mbed library sources modified for open wear

Dependents:   openwear-lifelogger-example

Fork of mbed-src by mbed official

targets/cmsis/TARGET_STM/TARGET_NUCLEO_F103RB/stm32f10x_crc.c@52:a51c77007319, 2013-12-02 (annotated)

Committer:
mbed_official
Date:
Mon Dec 02 11:30:05 2013 +0000
Revision:
52:a51c77007319
Child:
70:c1fbde68b492
Synchronized with git revision 49df530ae72ce97ccc773d1f2c13b38e868e6abd



Full URL: https://github.com/mbedmicro/mbed/commit/49df530ae72ce97ccc773d1f2c13b38e868e6abd/



Add STMicroelectronics NUCLEO_F103RB target

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbed_official 52:a51c77007319 1 /**
mbed_official 52:a51c77007319 2 ******************************************************************************
mbed_official 52:a51c77007319 3 * @file stm32f10x_crc.c
mbed_official 52:a51c77007319 4 * @author MCD Application Team
mbed_official 52:a51c77007319 5 * @version V3.5.0
mbed_official 52:a51c77007319 6 * @date 11-March-2011
mbed_official 52:a51c77007319 7 * @brief This file provides all the CRC firmware functions.
mbed_official 52:a51c77007319 8 ******************************************************************************
mbed_official 52:a51c77007319 9 * @attention
mbed_official 52:a51c77007319 10 *
mbed_official 52:a51c77007319 11 * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS
mbed_official 52:a51c77007319 12 * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE
mbed_official 52:a51c77007319 13 * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY
mbed_official 52:a51c77007319 14 * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING
mbed_official 52:a51c77007319 15 * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE
mbed_official 52:a51c77007319 16 * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.
mbed_official 52:a51c77007319 17 *
mbed_official 52:a51c77007319 18 * <h2><center>&copy; COPYRIGHT 2011 STMicroelectronics</center></h2>
mbed_official 52:a51c77007319 19 ******************************************************************************
mbed_official 52:a51c77007319 20 */
mbed_official 52:a51c77007319 21
mbed_official 52:a51c77007319 22 /* Includes ------------------------------------------------------------------*/
mbed_official 52:a51c77007319 23 #include "stm32f10x_crc.h"
mbed_official 52:a51c77007319 24
mbed_official 52:a51c77007319 25 /** @addtogroup STM32F10x_StdPeriph_Driver
mbed_official 52:a51c77007319 26 * @{
mbed_official 52:a51c77007319 27 */
mbed_official 52:a51c77007319 28
mbed_official 52:a51c77007319 29 /** @defgroup CRC
mbed_official 52:a51c77007319 30 * @brief CRC driver modules
mbed_official 52:a51c77007319 31 * @{
mbed_official 52:a51c77007319 32 */
mbed_official 52:a51c77007319 33
mbed_official 52:a51c77007319 34 /** @defgroup CRC_Private_TypesDefinitions
mbed_official 52:a51c77007319 35 * @{
mbed_official 52:a51c77007319 36 */
mbed_official 52:a51c77007319 37
mbed_official 52:a51c77007319 38 /**
mbed_official 52:a51c77007319 39 * @}
mbed_official 52:a51c77007319 40 */
mbed_official 52:a51c77007319 41
mbed_official 52:a51c77007319 42 /** @defgroup CRC_Private_Defines
mbed_official 52:a51c77007319 43 * @{
mbed_official 52:a51c77007319 44 */
mbed_official 52:a51c77007319 45
mbed_official 52:a51c77007319 46 /**
mbed_official 52:a51c77007319 47 * @}
mbed_official 52:a51c77007319 48 */
mbed_official 52:a51c77007319 49
mbed_official 52:a51c77007319 50 /** @defgroup CRC_Private_Macros
mbed_official 52:a51c77007319 51 * @{
mbed_official 52:a51c77007319 52 */
mbed_official 52:a51c77007319 53
mbed_official 52:a51c77007319 54 /**
mbed_official 52:a51c77007319 55 * @}
mbed_official 52:a51c77007319 56 */
mbed_official 52:a51c77007319 57
mbed_official 52:a51c77007319 58 /** @defgroup CRC_Private_Variables
mbed_official 52:a51c77007319 59 * @{
mbed_official 52:a51c77007319 60 */
mbed_official 52:a51c77007319 61
mbed_official 52:a51c77007319 62 /**
mbed_official 52:a51c77007319 63 * @}
mbed_official 52:a51c77007319 64 */
mbed_official 52:a51c77007319 65
mbed_official 52:a51c77007319 66 /** @defgroup CRC_Private_FunctionPrototypes
mbed_official 52:a51c77007319 67 * @{
mbed_official 52:a51c77007319 68 */
mbed_official 52:a51c77007319 69
mbed_official 52:a51c77007319 70 /**
mbed_official 52:a51c77007319 71 * @}
mbed_official 52:a51c77007319 72 */
mbed_official 52:a51c77007319 73
mbed_official 52:a51c77007319 74 /** @defgroup CRC_Private_Functions
mbed_official 52:a51c77007319 75 * @{
mbed_official 52:a51c77007319 76 */
mbed_official 52:a51c77007319 77
mbed_official 52:a51c77007319 78 /**
mbed_official 52:a51c77007319 79 * @brief Resets the CRC Data register (DR).
mbed_official 52:a51c77007319 80 * @param None
mbed_official 52:a51c77007319 81 * @retval None
mbed_official 52:a51c77007319 82 */
mbed_official 52:a51c77007319 83 void CRC_ResetDR(void)
mbed_official 52:a51c77007319 84 {
mbed_official 52:a51c77007319 85 /* Reset CRC generator */
mbed_official 52:a51c77007319 86 CRC->CR = CRC_CR_RESET;
mbed_official 52:a51c77007319 87 }
mbed_official 52:a51c77007319 88
mbed_official 52:a51c77007319 89 /**
mbed_official 52:a51c77007319 90 * @brief Computes the 32-bit CRC of a given data word(32-bit).
mbed_official 52:a51c77007319 91 * @param Data: data word(32-bit) to compute its CRC
mbed_official 52:a51c77007319 92 * @retval 32-bit CRC
mbed_official 52:a51c77007319 93 */
mbed_official 52:a51c77007319 94 uint32_t CRC_CalcCRC(uint32_t Data)
mbed_official 52:a51c77007319 95 {
mbed_official 52:a51c77007319 96 CRC->DR = Data;
mbed_official 52:a51c77007319 97
mbed_official 52:a51c77007319 98 return (CRC->DR);
mbed_official 52:a51c77007319 99 }
mbed_official 52:a51c77007319 100
mbed_official 52:a51c77007319 101 /**
mbed_official 52:a51c77007319 102 * @brief Computes the 32-bit CRC of a given buffer of data word(32-bit).
mbed_official 52:a51c77007319 103 * @param pBuffer: pointer to the buffer containing the data to be computed
mbed_official 52:a51c77007319 104 * @param BufferLength: length of the buffer to be computed
mbed_official 52:a51c77007319 105 * @retval 32-bit CRC
mbed_official 52:a51c77007319 106 */
mbed_official 52:a51c77007319 107 uint32_t CRC_CalcBlockCRC(uint32_t pBuffer[], uint32_t BufferLength)
mbed_official 52:a51c77007319 108 {
mbed_official 52:a51c77007319 109 uint32_t index = 0;
mbed_official 52:a51c77007319 110
mbed_official 52:a51c77007319 111 for(index = 0; index < BufferLength; index++)
mbed_official 52:a51c77007319 112 {
mbed_official 52:a51c77007319 113 CRC->DR = pBuffer[index];
mbed_official 52:a51c77007319 114 }
mbed_official 52:a51c77007319 115 return (CRC->DR);
mbed_official 52:a51c77007319 116 }
mbed_official 52:a51c77007319 117
mbed_official 52:a51c77007319 118 /**
mbed_official 52:a51c77007319 119 * @brief Returns the current CRC value.
mbed_official 52:a51c77007319 120 * @param None
mbed_official 52:a51c77007319 121 * @retval 32-bit CRC
mbed_official 52:a51c77007319 122 */
mbed_official 52:a51c77007319 123 uint32_t CRC_GetCRC(void)
mbed_official 52:a51c77007319 124 {
mbed_official 52:a51c77007319 125 return (CRC->DR);
mbed_official 52:a51c77007319 126 }
mbed_official 52:a51c77007319 127
mbed_official 52:a51c77007319 128 /**
mbed_official 52:a51c77007319 129 * @brief Stores a 8-bit data in the Independent Data(ID) register.
mbed_official 52:a51c77007319 130 * @param IDValue: 8-bit value to be stored in the ID register
mbed_official 52:a51c77007319 131 * @retval None
mbed_official 52:a51c77007319 132 */
mbed_official 52:a51c77007319 133 void CRC_SetIDRegister(uint8_t IDValue)
mbed_official 52:a51c77007319 134 {
mbed_official 52:a51c77007319 135 CRC->IDR = IDValue;
mbed_official 52:a51c77007319 136 }
mbed_official 52:a51c77007319 137
mbed_official 52:a51c77007319 138 /**
mbed_official 52:a51c77007319 139 * @brief Returns the 8-bit data stored in the Independent Data(ID) register
mbed_official 52:a51c77007319 140 * @param None
mbed_official 52:a51c77007319 141 * @retval 8-bit value of the ID register
mbed_official 52:a51c77007319 142 */
mbed_official 52:a51c77007319 143 uint8_t CRC_GetIDRegister(void)
mbed_official 52:a51c77007319 144 {
mbed_official 52:a51c77007319 145 return (CRC->IDR);
mbed_official 52:a51c77007319 146 }
mbed_official 52:a51c77007319 147
mbed_official 52:a51c77007319 148 /**
mbed_official 52:a51c77007319 149 * @}
mbed_official 52:a51c77007319 150 */
mbed_official 52:a51c77007319 151
mbed_official 52:a51c77007319 152 /**
mbed_official 52:a51c77007319 153 * @}
mbed_official 52:a51c77007319 154 */
mbed_official 52:a51c77007319 155
mbed_official 52:a51c77007319 156 /**
mbed_official 52:a51c77007319 157 * @}
mbed_official 52:a51c77007319 158 */
mbed_official 52:a51c77007319 159
mbed_official 52:a51c77007319 160 /******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/