mbed library sources modified for open wear
Dependents: openwear-lifelogger-example
Fork of mbed-src by
targets/cmsis/TARGET_STM/TARGET_NUCLEO_L152RE/stm32l1xx_crc.c@76:aeb1df146756, 2014-01-27 (annotated)
- Committer:
- mbed_official
- Date:
- Mon Jan 27 14:30:07 2014 +0000
- Revision:
- 76:aeb1df146756
- Child:
- 80:66393a7b209d
Synchronized with git revision a31ec9c5f7bcb5c8a1b2eced103f6a1dfa921abd
Full URL: https://github.com/mbedmicro/mbed/commit/a31ec9c5f7bcb5c8a1b2eced103f6a1dfa921abd/
Add NUCLEO_L152RE
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
mbed_official | 76:aeb1df146756 | 1 | /** |
mbed_official | 76:aeb1df146756 | 2 | ****************************************************************************** |
mbed_official | 76:aeb1df146756 | 3 | * @file stm32l1xx_crc.c |
mbed_official | 76:aeb1df146756 | 4 | * @author MCD Application Team |
mbed_official | 76:aeb1df146756 | 5 | * @version V1.2.0 |
mbed_official | 76:aeb1df146756 | 6 | * @date 22-February-2013 |
mbed_official | 76:aeb1df146756 | 7 | * @brief This file provides all the CRC firmware functions. |
mbed_official | 76:aeb1df146756 | 8 | ****************************************************************************** |
mbed_official | 76:aeb1df146756 | 9 | * @attention |
mbed_official | 76:aeb1df146756 | 10 | * |
mbed_official | 76:aeb1df146756 | 11 | * <h2><center>© COPYRIGHT 2013 STMicroelectronics</center></h2> |
mbed_official | 76:aeb1df146756 | 12 | * |
mbed_official | 76:aeb1df146756 | 13 | * Licensed under MCD-ST Liberty SW License Agreement V2, (the "License"); |
mbed_official | 76:aeb1df146756 | 14 | * You may not use this file except in compliance with the License. |
mbed_official | 76:aeb1df146756 | 15 | * You may obtain a copy of the License at: |
mbed_official | 76:aeb1df146756 | 16 | * |
mbed_official | 76:aeb1df146756 | 17 | * http://www.st.com/software_license_agreement_liberty_v2 |
mbed_official | 76:aeb1df146756 | 18 | * |
mbed_official | 76:aeb1df146756 | 19 | * Unless required by applicable law or agreed to in writing, software |
mbed_official | 76:aeb1df146756 | 20 | * distributed under the License is distributed on an "AS IS" BASIS, |
mbed_official | 76:aeb1df146756 | 21 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
mbed_official | 76:aeb1df146756 | 22 | * See the License for the specific language governing permissions and |
mbed_official | 76:aeb1df146756 | 23 | * limitations under the License. |
mbed_official | 76:aeb1df146756 | 24 | * |
mbed_official | 76:aeb1df146756 | 25 | ****************************************************************************** |
mbed_official | 76:aeb1df146756 | 26 | */ |
mbed_official | 76:aeb1df146756 | 27 | |
mbed_official | 76:aeb1df146756 | 28 | /* Includes ------------------------------------------------------------------*/ |
mbed_official | 76:aeb1df146756 | 29 | #include "stm32l1xx_crc.h" |
mbed_official | 76:aeb1df146756 | 30 | |
mbed_official | 76:aeb1df146756 | 31 | /** @addtogroup STM32L1xx_StdPeriph_Driver |
mbed_official | 76:aeb1df146756 | 32 | * @{ |
mbed_official | 76:aeb1df146756 | 33 | */ |
mbed_official | 76:aeb1df146756 | 34 | |
mbed_official | 76:aeb1df146756 | 35 | /** @defgroup CRC |
mbed_official | 76:aeb1df146756 | 36 | * @brief CRC driver modules |
mbed_official | 76:aeb1df146756 | 37 | * @{ |
mbed_official | 76:aeb1df146756 | 38 | */ |
mbed_official | 76:aeb1df146756 | 39 | |
mbed_official | 76:aeb1df146756 | 40 | /* Private typedef -----------------------------------------------------------*/ |
mbed_official | 76:aeb1df146756 | 41 | /* Private define ------------------------------------------------------------*/ |
mbed_official | 76:aeb1df146756 | 42 | /* Private macro -------------------------------------------------------------*/ |
mbed_official | 76:aeb1df146756 | 43 | /* Private variables ---------------------------------------------------------*/ |
mbed_official | 76:aeb1df146756 | 44 | /* Private function prototypes -----------------------------------------------*/ |
mbed_official | 76:aeb1df146756 | 45 | /* Private functions ---------------------------------------------------------*/ |
mbed_official | 76:aeb1df146756 | 46 | |
mbed_official | 76:aeb1df146756 | 47 | /** @defgroup CRC_Private_Functions |
mbed_official | 76:aeb1df146756 | 48 | * @{ |
mbed_official | 76:aeb1df146756 | 49 | */ |
mbed_official | 76:aeb1df146756 | 50 | |
mbed_official | 76:aeb1df146756 | 51 | /** |
mbed_official | 76:aeb1df146756 | 52 | * @brief Resets the CRC Data register (DR). |
mbed_official | 76:aeb1df146756 | 53 | * @param None |
mbed_official | 76:aeb1df146756 | 54 | * @retval None |
mbed_official | 76:aeb1df146756 | 55 | */ |
mbed_official | 76:aeb1df146756 | 56 | void CRC_ResetDR(void) |
mbed_official | 76:aeb1df146756 | 57 | { |
mbed_official | 76:aeb1df146756 | 58 | /* Reset CRC generator */ |
mbed_official | 76:aeb1df146756 | 59 | CRC->CR = CRC_CR_RESET; |
mbed_official | 76:aeb1df146756 | 60 | } |
mbed_official | 76:aeb1df146756 | 61 | |
mbed_official | 76:aeb1df146756 | 62 | /** |
mbed_official | 76:aeb1df146756 | 63 | * @brief Computes the 32-bit CRC of a given data word(32-bit). |
mbed_official | 76:aeb1df146756 | 64 | * @param Data: data word(32-bit) to compute its CRC. |
mbed_official | 76:aeb1df146756 | 65 | * @retval 32-bit CRC |
mbed_official | 76:aeb1df146756 | 66 | */ |
mbed_official | 76:aeb1df146756 | 67 | uint32_t CRC_CalcCRC(uint32_t Data) |
mbed_official | 76:aeb1df146756 | 68 | { |
mbed_official | 76:aeb1df146756 | 69 | CRC->DR = Data; |
mbed_official | 76:aeb1df146756 | 70 | |
mbed_official | 76:aeb1df146756 | 71 | return (CRC->DR); |
mbed_official | 76:aeb1df146756 | 72 | } |
mbed_official | 76:aeb1df146756 | 73 | |
mbed_official | 76:aeb1df146756 | 74 | /** |
mbed_official | 76:aeb1df146756 | 75 | * @brief Computes the 32-bit CRC of a given buffer of data word(32-bit). |
mbed_official | 76:aeb1df146756 | 76 | * @param pBuffer: pointer to the buffer containing the data to be computed. |
mbed_official | 76:aeb1df146756 | 77 | * @param BufferLength: length of the buffer to be computed |
mbed_official | 76:aeb1df146756 | 78 | * @retval 32-bit CRC |
mbed_official | 76:aeb1df146756 | 79 | */ |
mbed_official | 76:aeb1df146756 | 80 | uint32_t CRC_CalcBlockCRC(uint32_t pBuffer[], uint32_t BufferLength) |
mbed_official | 76:aeb1df146756 | 81 | { |
mbed_official | 76:aeb1df146756 | 82 | uint32_t index = 0; |
mbed_official | 76:aeb1df146756 | 83 | |
mbed_official | 76:aeb1df146756 | 84 | for(index = 0; index < BufferLength; index++) |
mbed_official | 76:aeb1df146756 | 85 | { |
mbed_official | 76:aeb1df146756 | 86 | CRC->DR = pBuffer[index]; |
mbed_official | 76:aeb1df146756 | 87 | } |
mbed_official | 76:aeb1df146756 | 88 | return (CRC->DR); |
mbed_official | 76:aeb1df146756 | 89 | } |
mbed_official | 76:aeb1df146756 | 90 | |
mbed_official | 76:aeb1df146756 | 91 | /** |
mbed_official | 76:aeb1df146756 | 92 | * @brief Returns the current CRC value. |
mbed_official | 76:aeb1df146756 | 93 | * @param None |
mbed_official | 76:aeb1df146756 | 94 | * @retval 32-bit CRC |
mbed_official | 76:aeb1df146756 | 95 | */ |
mbed_official | 76:aeb1df146756 | 96 | uint32_t CRC_GetCRC(void) |
mbed_official | 76:aeb1df146756 | 97 | { |
mbed_official | 76:aeb1df146756 | 98 | return (CRC->DR); |
mbed_official | 76:aeb1df146756 | 99 | } |
mbed_official | 76:aeb1df146756 | 100 | |
mbed_official | 76:aeb1df146756 | 101 | /** |
mbed_official | 76:aeb1df146756 | 102 | * @brief Stores a 8-bit data in the Independent Data(ID) register. |
mbed_official | 76:aeb1df146756 | 103 | * @param IDValue: 8-bit value to be stored in the ID register |
mbed_official | 76:aeb1df146756 | 104 | * @retval None |
mbed_official | 76:aeb1df146756 | 105 | */ |
mbed_official | 76:aeb1df146756 | 106 | void CRC_SetIDRegister(uint8_t IDValue) |
mbed_official | 76:aeb1df146756 | 107 | { |
mbed_official | 76:aeb1df146756 | 108 | CRC->IDR = IDValue; |
mbed_official | 76:aeb1df146756 | 109 | } |
mbed_official | 76:aeb1df146756 | 110 | |
mbed_official | 76:aeb1df146756 | 111 | /** |
mbed_official | 76:aeb1df146756 | 112 | * @brief Returns the 8-bit data stored in the Independent Data(ID) register. |
mbed_official | 76:aeb1df146756 | 113 | * @param None |
mbed_official | 76:aeb1df146756 | 114 | * @retval 8-bit value of the ID register |
mbed_official | 76:aeb1df146756 | 115 | */ |
mbed_official | 76:aeb1df146756 | 116 | uint8_t CRC_GetIDRegister(void) |
mbed_official | 76:aeb1df146756 | 117 | { |
mbed_official | 76:aeb1df146756 | 118 | return (CRC->IDR); |
mbed_official | 76:aeb1df146756 | 119 | } |
mbed_official | 76:aeb1df146756 | 120 | |
mbed_official | 76:aeb1df146756 | 121 | /** |
mbed_official | 76:aeb1df146756 | 122 | * @} |
mbed_official | 76:aeb1df146756 | 123 | */ |
mbed_official | 76:aeb1df146756 | 124 | |
mbed_official | 76:aeb1df146756 | 125 | /** |
mbed_official | 76:aeb1df146756 | 126 | * @} |
mbed_official | 76:aeb1df146756 | 127 | */ |
mbed_official | 76:aeb1df146756 | 128 | |
mbed_official | 76:aeb1df146756 | 129 | /** |
mbed_official | 76:aeb1df146756 | 130 | * @} |
mbed_official | 76:aeb1df146756 | 131 | */ |
mbed_official | 76:aeb1df146756 | 132 | |
mbed_official | 76:aeb1df146756 | 133 | /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/ |