add stm32f0 discovery bsp.

git-svn-id: https://rt-thread.googlecode.com/svn/trunk@2143 bbd45198-f89e-11dd-88c7-29a3b14d5316

bsp/stm32f0x/Libraries/STM32F0xx_StdPeriph_Driver/inc/stm32f0xx_crc.h

@@ -0,0 +1,100 @@
+/**
+  ******************************************************************************
+  * @file    stm32f0xx_crc.h
+  * @author  MCD Application Team
+  * @version V1.0.0
+  * @date    23-March-2012
+  * @brief   This file contains all the functions prototypes for the CRC firmware 
+  *          library.
+  ******************************************************************************
+  * @attention
+  *
+  * <h2><center>&copy; COPYRIGHT 2012 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.
+  *
+  ******************************************************************************
+  */
+
+/* Define to prevent recursive inclusion -------------------------------------*/
+#ifndef __STM32F0XX_CRC_H
+#define __STM32F0XX_CRC_H
+
+#ifdef __cplusplus
+ extern "C" {
+#endif
+
+/*!< Includes ----------------------------------------------------------------*/
+#include "stm32f0xx.h"
+
+/** @addtogroup STM32F0xx_StdPeriph_Driver
+  * @{
+  */
+
+/** @addtogroup CRC
+  * @{
+  */
+
+/* Exported types ------------------------------------------------------------*/
+/* Exported constants --------------------------------------------------------*/
+
+/** @defgroup CRC_Exported_Constants
+  * @{
+  */
+#define CRC_ReverseInputData_No             ((uint32_t)0x00000000) /*!< No reverse operation of Input Data */
+#define CRC_ReverseInputData_8bits          CRC_CR_REV_IN_0        /*!< Reverse operation of Input Data on 8 bits */
+#define CRC_ReverseInputData_16bits         CRC_CR_REV_IN_1        /*!< Reverse operation of Input Data on 16 bits */
+#define CRC_ReverseInputData_32bits         CRC_CR_REV_IN          /*!< Reverse operation of Input Data on 32 bits */
+
+#define IS_CRC_REVERSE_INPUT_DATA(DATA) (((DATA) == CRC_ReverseInputData_No)     || \
+                                         ((DATA) == CRC_ReverseInputData_8bits)  || \
+                                         ((DATA) == CRC_ReverseInputData_16bits) || \
+                                         ((DATA) == CRC_ReverseInputData_32bits))
+
+/**
+  * @}
+  */
+
+/* Exported macro ------------------------------------------------------------*/
+/* Exported functions ------------------------------------------------------- */
+/* Configuration of the CRC computation unit **********************************/
+void CRC_DeInit(void);
+void CRC_ResetDR(void);
+void CRC_ReverseInputDataSelect(uint32_t CRC_ReverseInputData);
+void CRC_ReverseOutputDataCmd(FunctionalState NewState);
+void CRC_SetInitRegister(uint32_t CRC_InitValue);
+
+/* CRC computation ************************************************************/
+uint32_t CRC_CalcCRC(uint32_t CRC_Data);
+uint32_t CRC_CalcBlockCRC(uint32_t pBuffer[], uint32_t BufferLength);
+uint32_t CRC_GetCRC(void);
+
+/* Independent register (IDR) access (write/read) *****************************/
+void CRC_SetIDRegister(uint8_t CRC_IDValue);
+uint8_t CRC_GetIDRegister(void);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __STM32F0XX_CRC_H */
+
+/**
+  * @}
+  */
+
+/**
+  * @}
+  */
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/