mbed library sources
Dependents: frdm_kl05z_gpio_test
Fork of mbed-src by
targets/cmsis/TARGET_STM/TARGET_NUCLEO_L152RE/stm32l1xx_crc.c
- Committer:
- mbed_official
- Date:
- 2014-01-30
- Revision:
- 80:66393a7b209d
- Parent:
- 76:aeb1df146756
- Child:
- 106:ced8cbb51063
File content as of revision 80:66393a7b209d:
/** ****************************************************************************** * @file stm32l1xx_crc.c * @author MCD Application Team * @version V1.3.0 * @date 31-January-2014 * @brief This file provides all the CRC firmware functions. ****************************************************************************** * @attention * * <h2><center>© COPYRIGHT 2014 STMicroelectronics</center></h2> * * Licensed under MCD-ST Liberty SW License Agreement V2, (the "License"); * You may not use this file except in compliance with the License. * You may obtain a copy of the License at: * * http://www.st.com/software_license_agreement_liberty_v2 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. * ****************************************************************************** */ /* Includes ------------------------------------------------------------------*/ #include "stm32l1xx_crc.h" /** @addtogroup STM32L1xx_StdPeriph_Driver * @{ */ /** @defgroup CRC * @brief CRC driver modules * @{ */ /* Private typedef -----------------------------------------------------------*/ /* Private define ------------------------------------------------------------*/ /* Private macro -------------------------------------------------------------*/ /* Private variables ---------------------------------------------------------*/ /* Private function prototypes -----------------------------------------------*/ /* Private functions ---------------------------------------------------------*/ /** @defgroup CRC_Private_Functions * @{ */ /** * @brief Resets the CRC Data register (DR). * @param None * @retval None */ void CRC_ResetDR(void) { /* Reset CRC generator */ CRC->CR = CRC_CR_RESET; } /** * @brief Computes the 32-bit CRC of a given data word(32-bit). * @param Data: data word(32-bit) to compute its CRC. * @retval 32-bit CRC */ uint32_t CRC_CalcCRC(uint32_t Data) { CRC->DR = Data; return (CRC->DR); } /** * @brief Computes the 32-bit CRC of a given buffer of data word(32-bit). * @param pBuffer: pointer to the buffer containing the data to be computed. * @param BufferLength: length of the buffer to be computed * @retval 32-bit CRC */ uint32_t CRC_CalcBlockCRC(uint32_t pBuffer[], uint32_t BufferLength) { uint32_t index = 0; for(index = 0; index < BufferLength; index++) { CRC->DR = pBuffer[index]; } return (CRC->DR); } /** * @brief Returns the current CRC value. * @param None * @retval 32-bit CRC */ uint32_t CRC_GetCRC(void) { return (CRC->DR); } /** * @brief Stores a 8-bit data in the Independent Data(ID) register. * @param IDValue: 8-bit value to be stored in the ID register * @retval None */ void CRC_SetIDRegister(uint8_t IDValue) { CRC->IDR = IDValue; } /** * @brief Returns the 8-bit data stored in the Independent Data(ID) register. * @param None * @retval 8-bit value of the ID register */ uint8_t CRC_GetIDRegister(void) { return (CRC->IDR); } /** * @} */ /** * @} */ /** * @} */ /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/