--- /dev/null
+/**\r
+ ******************************************************************************\r
+ * @file stm32l1xx_crc.c\r
+ * @author MCD Application Team\r
+ * @version V1.0.0\r
+ * @date 31-December-2010\r
+ * @brief This file provides all the CRC firmware functions.\r
+ ******************************************************************************\r
+ * @attention\r
+ *\r
+ * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS\r
+ * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE\r
+ * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY\r
+ * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING\r
+ * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE\r
+ * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.\r
+ *\r
+ * <h2><center>© COPYRIGHT 2010 STMicroelectronics</center></h2>\r
+ ****************************************************************************** \r
+ */ \r
+\r
+/* Includes ------------------------------------------------------------------*/\r
+#include "stm32l1xx_crc.h"\r
+\r
+/** @addtogroup STM32L1xx_StdPeriph_Driver\r
+ * @{\r
+ */\r
+\r
+/** @defgroup CRC \r
+ * @brief CRC driver modules\r
+ * @{\r
+ */\r
+\r
+/* Private typedef -----------------------------------------------------------*/\r
+/* Private define ------------------------------------------------------------*/\r
+/* Private macro -------------------------------------------------------------*/\r
+/* Private variables ---------------------------------------------------------*/\r
+/* Private function prototypes -----------------------------------------------*/\r
+/* Private functions ---------------------------------------------------------*/\r
+\r
+/** @defgroup CRC_Private_Functions\r
+ * @{\r
+ */\r
+\r
+/**\r
+ * @brief Resets the CRC Data register (DR).\r
+ * @param None\r
+ * @retval None\r
+ */\r
+void CRC_ResetDR(void)\r
+{\r
+ /* Reset CRC generator */\r
+ CRC->CR = CRC_CR_RESET;\r
+}\r
+\r
+/**\r
+ * @brief Computes the 32-bit CRC of a given data word(32-bit).\r
+ * @param Data: data word(32-bit) to compute its CRC\r
+ * @retval 32-bit CRC\r
+ */\r
+uint32_t CRC_CalcCRC(uint32_t Data)\r
+{\r
+ CRC->DR = Data;\r
+ \r
+ return (CRC->DR);\r
+}\r
+\r
+/**\r
+ * @brief Computes the 32-bit CRC of a given buffer of data word(32-bit).\r
+ * @param pBuffer: pointer to the buffer containing the data to be computed\r
+ * @param BufferLength: length of the buffer to be computed \r
+ * @retval 32-bit CRC\r
+ */\r
+uint32_t CRC_CalcBlockCRC(uint32_t pBuffer[], uint32_t BufferLength)\r
+{\r
+ uint32_t index = 0;\r
+ \r
+ for(index = 0; index < BufferLength; index++)\r
+ {\r
+ CRC->DR = pBuffer[index];\r
+ }\r
+ return (CRC->DR);\r
+}\r
+\r
+/**\r
+ * @brief Returns the current CRC value.\r
+ * @param None\r
+ * @retval 32-bit CRC\r
+ */\r
+uint32_t CRC_GetCRC(void)\r
+{\r
+ return (CRC->DR);\r
+}\r
+\r
+/**\r
+ * @brief Stores a 8-bit data in the Independent Data(ID) register.\r
+ * @param IDValue: 8-bit value to be stored in the ID register \r
+ * @retval None\r
+ */\r
+void CRC_SetIDRegister(uint8_t IDValue)\r
+{\r
+ CRC->IDR = IDValue;\r
+}\r
+\r
+/**\r
+ * @brief Returns the 8-bit data stored in the Independent Data(ID) register\r
+ * @param None\r
+ * @retval 8-bit value of the ID register \r
+ */\r
+uint8_t CRC_GetIDRegister(void)\r
+{\r
+ return (CRC->IDR);\r
+}\r
+\r
+/**\r
+ * @}\r
+ */\r
+\r
+/**\r
+ * @}\r
+ */\r
+\r
+/**\r
+ * @}\r
+ */\r
+\r
+/******************* (C) COPYRIGHT 2010 STMicroelectronics *****END OF FILE****/\r