Add FreeRTOS-Plus directory.

FreeRTOS/Demo/Common/drivers/ST/STM32F10xFWLib/src/stm32f10x_crc.c

@@ -0,0 +1,164 @@
+/**
+  ******************************************************************************
+  * @file  stm32f10x_crc.c
+  * @author  MCD Application Team
+  * @version  V3.0.0
+  * @date  04/06/2009
+  * @brief  This file provides all the CRC firmware functions.
+  ******************************************************************************
+  * @copy
+  *
+  * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS
+  * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE
+  * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY
+  * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING
+  * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE
+  * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.
+  *
+  * <h2><center>&copy; COPYRIGHT 2009 STMicroelectronics</center></h2>
+  */ 
+
+/* Includes ------------------------------------------------------------------*/
+#include "stm32f10x_crc.h"
+
+/** @addtogroup StdPeriph_Driver
+  * @{
+  */
+
+/** @defgroup CRC 
+  * @brief CRC driver modules
+  * @{
+  */
+
+/** @defgroup CRC_Private_TypesDefinitions
+  * @{
+  */
+
+/**
+  * @}
+  */
+
+/** @defgroup CRC_Private_Defines
+  * @{
+  */
+
+/* CR register bit mask */
+
+#define CR_RESET_Set    ((uint32_t)0x00000001)
+
+/**
+  * @}
+  */
+
+/** @defgroup CRC_Private_Macros
+  * @{
+  */
+
+/**
+  * @}
+  */
+
+/** @defgroup CRC_Private_Variables
+  * @{
+  */
+
+/**
+  * @}
+  */
+
+/** @defgroup CRC_Private_FunctionPrototypes
+  * @{
+  */
+
+/**
+  * @}
+  */
+
+/** @defgroup CRC_Private_Functions
+  * @{
+  */
+
+/**
+  * @brief  Resets the CRC Data register (DR).
+  * @param  None
+  * @retval : None
+  */
+void CRC_ResetDR(void)
+{
+  /* Reset CRC generator */
+  CRC->CR = CR_RESET_Set;
+}
+
+/**
+  * @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 2009 STMicroelectronics *****END OF FILE****/