172 lines
4.7 KiB
C
172 lines
4.7 KiB
C
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/**************************************************************************//**
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* @file can.h
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* @version V1.00
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* $Revision: 8 $
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* $Date: 14/09/26 3:38p $
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* @brief NUC472/NUC442 CAN driver header file
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*
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* @note
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* Copyright (C) 2013 Nuvoton Technology Corp. All rights reserved.
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*****************************************************************************/
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#ifndef __CAN_H__
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#define __CAN_H__
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#ifdef __cplusplus
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extern "C"
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{
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#endif
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/** @addtogroup NUC472_442_Device_Driver NUC472/NUC442 Device Driver
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@{
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*/
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/** @addtogroup NUC472_442_CAN_Driver CAN Driver
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@{
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*/
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/** @addtogroup NUC472_442_CAN_EXPORTED_TYPEDEF CAN Exported Type Defines
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@{
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*/
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/**
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* @details Message ID types.
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*/
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typedef enum {
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CAN_STD_ID = 0, /*!< Standard Identifier */
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CAN_EXT_ID = 1 /*!< Extended Identifier */
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} E_CAN_ID_TYPE;
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/**
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* @details Message Frame types.
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*/
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typedef enum {
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REMOTE_FRAME = 0, /*!< Remote Frame */
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DATA_FRAME = 1 /*!< Data Frame */
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} E_CAN_FRAME_TYPE;
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/**
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* @details CAN message structure.
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*/
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typedef struct {
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uint32_t IdType; /*!< Identifier Type */
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uint32_t FrameType; /*!< Frame Type */
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uint32_t Id; /*!< Message Identifier */
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uint8_t DLC; /*!< Data Length Code */
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uint8_t Data[8]; /*!< Data byte 0 ~ 7 */
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} STR_CANMSG_T;
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/**
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* @details CAN mask message structure.
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*/
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typedef struct {
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uint8_t u8Xtd; /*!< Extended Identifier */
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uint8_t u8Dir; /*!< Message Direction */
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uint32_t u32Id; /*!< Message Identifier */
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uint8_t u8IdType; /*!< Identifier Type */
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} STR_CANMASK_T;
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/**
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* @details CAN operation mode: normal/basic mode.
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*/
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typedef enum {
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CAN_NORMAL_MODE = 1, /*!< Normal Mode */
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CAN_BASIC_MODE = 2 /*!< Basic Mode */
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} CAN_MODE_SELECT;
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#define ALL_MSG 32 /*!< All Message ram number */
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#define MSG(id) id /*!< Message ram number */
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/*@}*/ /* end of group NUC472_442_CAN_EXPORTED_TYPEDEF */
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/** @addtogroup NUC472_442_CAN_EXPORTED_FUNCTIONS CAN Exported Functions
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@{
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*/
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/**
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* @brief Get interrupt status
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*
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* @param[in] can The base address of can module
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*
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* @return CAN module status register value
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* \hideinitializer
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*/
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#define CAN_GET_INT_STATUS(can) (can->STATUS)
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/**
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* @brief Get specified interrupt pending status
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*
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* @param[in] can The base address of can module
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*
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* @return The source of the interrupt.
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* \hideinitializer
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*/
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#define CAN_GET_INT_PENDING_STATUS(can) (can->IIDR)
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/**
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* @brief Disable Wakeup function
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*
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* @param[in] can The base address of can module
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*
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* @return None
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* \hideinitializer
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*/
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#define CAN_DISABLE_WAKEUP(can) (can->WU_IE = 0)
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/**
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* @brief Enable Wakeup function
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*
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* @param[in] can The base address of can module
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*
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* @return None
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* \hideinitializer
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*/
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#define CAN_ENABLE_WAKEUP(can) (can->WU_IE = CAN_WUEN_WAKUP_EN_Msk)
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/**
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* @brief Get specified Message Object new data into bit value
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*
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* @param[in] can The base address of can module
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* @param[in] u32MsgNum Specified Message Object number. (0 ~ 31)
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*
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* @return Specified Message Object new data into bit value.
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* \hideinitializer
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*/
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#define CAN_GET_NEW_DATA_IN_BIT(can, u32MsgNum) (u32MsgNum < 16 ? can->NDAT1 & (1 << u32MsgNum) : can->NDAT2 & (1 << (u32MsgNum-16)))
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/*---------------------------------------------------------------------------------------------------------*/
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/* Define CAN functions prototype */
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/*---------------------------------------------------------------------------------------------------------*/
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uint32_t CAN_SetBaudRate(CAN_T *tCAN, uint32_t u32BaudRate);
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uint32_t CAN_Open(CAN_T *tCAN, uint32_t u32BaudRate, uint32_t u32Mode);
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int32_t CAN_Transmit(CAN_T *tCAN, uint32_t u32MsgNum , STR_CANMSG_T* pCanMsg);
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int32_t CAN_Receive(CAN_T *tCAN, uint32_t u32MsgNum , STR_CANMSG_T* pCanMsg);
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void CAN_CLR_INT_PENDING_BIT(CAN_T *tCAN, uint8_t u32MsgNum);
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void CAN_EnableInt(CAN_T *tCAN, uint32_t u32Mask);
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void CAN_DisableInt(CAN_T *tCAN, uint32_t u32Mask);
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int32_t CAN_SetMultiRxMsg(CAN_T *tCAN, uint32_t u32MsgNum , uint32_t u32MsgCount, uint32_t u32IDType, uint32_t u32ID);
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int32_t CAN_SetRxMsg(CAN_T *tCAN, uint32_t u32MsgNum , uint32_t u32IDType, uint32_t u32ID);
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int32_t CAN_SetTxMsg(CAN_T *tCAN, uint32_t u32MsgNum , STR_CANMSG_T* pCanMsg);
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int32_t CAN_TriggerTxMsg(CAN_T *tCAN, uint32_t u32MsgNum);
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/*@}*/ /* end of group NUC472_442_CAN_EXPORTED_FUNCTIONS */
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/*@}*/ /* end of group NUC472_442_CAN_Driver */
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/*@}*/ /* end of group NUC472_442_Device_Driver */
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#ifdef __cplusplus
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}
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#endif
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#endif //__CAN_H__
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/*** (C) COPYRIGHT 2013 Nuvoton Technology Corp. ***/
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