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#ifndef __SWM320_CAN_H__
#define __SWM320_CAN_H__
#define CAN_FRAME_STD 0
#define CAN_FRAME_EXT 1
typedef struct
{
uint8_t Mode; //CAN_MODE_NORMAL��CAN_MODE_LISTEN��CAN_MODE_SELFTEST
uint8_t CAN_BS1; //CAN_BS1_1tq��CAN_BS1_2tq��... ... ��CAN_BS1_16tq
uint8_t CAN_BS2; //CAN_BS2_1tq��CAN_BS2_2tq��... ... ��CAN_BS2_8tq
uint8_t CAN_SJW; //CAN_SJW_1tq��CAN_SJW_2tq��CAN_SJW_3tq��CAN_SJW_4tq
uint32_t Baudrate; //�����ʣ���λ�������ʣ�ȡֵ1--1000000
uint8_t FilterMode; //CAN_FILTER_16b��CAN_FILTER_32b
union
{
uint32_t FilterMask32b; //FilterCheck & (~FilterMask) == ID & (~FilterMask)��Messageͨ������
struct // 0 must match 1 don't care
{
uint16_t FilterMask16b1;
uint16_t FilterMask16b2;
};
};
union
{
uint32_t FilterCheck32b;
struct
{
uint16_t FilterCheck16b1;
uint16_t FilterCheck16b2;
};
};
uint8_t RXNotEmptyIEn; //����FIFO�ǿգ������ݿɶ�
uint8_t RXOverflowIEn; //����FIFO����������ݶ�ʧ
uint8_t ArbitrLostIEn; //��������ʧ�ٲñ�ɽ��շ�
uint8_t ErrPassiveIEn; //����/���ʹ������ֵ�ﵽ127
} CAN_InitStructure;
#define CAN_MODE_NORMAL 0 //����ģʽ
#define CAN_MODE_LISTEN 1 //����ģʽ
#define CAN_MODE_SELFTEST 2 //�Բ�ģʽ
#define CAN_BS1_1tq 0
#define CAN_BS1_2tq 1
#define CAN_BS1_3tq 2
#define CAN_BS1_4tq 3
#define CAN_BS1_5tq 4
#define CAN_BS1_6tq 5
#define CAN_BS1_7tq 6
#define CAN_BS1_8tq 7
#define CAN_BS1_9tq 8
#define CAN_BS1_10tq 9
#define CAN_BS1_11tq 10
#define CAN_BS1_12tq 11
#define CAN_BS1_13tq 12
#define CAN_BS1_14tq 13
#define CAN_BS1_15tq 14
#define CAN_BS1_16tq 15
#define CAN_BS2_1tq 0
#define CAN_BS2_2tq 1
#define CAN_BS2_3tq 2
#define CAN_BS2_4tq 3
#define CAN_BS2_5tq 4
#define CAN_BS2_6tq 5
#define CAN_BS2_7tq 6
#define CAN_BS2_8tq 7
#define CAN_SJW_1tq 0
#define CAN_SJW_2tq 1
#define CAN_SJW_3tq 2
#define CAN_SJW_4tq 3
#define CAN_FILTER_16b 0 //����16�����
#define CAN_FILTER_32b 1 //һ��32λ������
typedef struct
{
uint32_t id; //��ϢID
uint8_t remote; //��Ϣ�Ƿ�ΪԶ��֡
uint8_t data[8]; //���յ�������
uint8_t size; //���յ������ݸ���
} CAN_RXMessage;
void CAN_Init(CAN_TypeDef *CANx, CAN_InitStructure *initStruct);
void CAN_Open(CAN_TypeDef *CANx);
void CAN_Close(CAN_TypeDef *CANx);
void CAN_Transmit(CAN_TypeDef *CANx, uint32_t format, uint32_t id, uint8_t data[], uint32_t size, uint32_t once);
void CAN_TransmitRequest(CAN_TypeDef *CANx, uint32_t format, uint32_t id, uint32_t once);
void CAN_Receive(CAN_TypeDef *CANx, CAN_RXMessage *msg);
uint32_t CAN_TXComplete(CAN_TypeDef *CANx);
uint32_t CAN_TXSuccess(CAN_TypeDef *CANx);
void CAN_AbortTransmit(CAN_TypeDef *CANx);
uint32_t CAN_TXBufferReady(CAN_TypeDef *CANx);
uint32_t CAN_RXDataAvailable(CAN_TypeDef *CANx);
void CAN_SetBaudrate(CAN_TypeDef *CANx, uint32_t baudrate, uint32_t CAN_BS1, uint32_t CAN_BS2, uint32_t CAN_SJW);
void CAN_SetFilter32b(CAN_TypeDef *CANx, uint32_t check, uint32_t mask);
void CAN_SetFilter16b(CAN_TypeDef *CANx, uint16_t check1, uint16_t mask1, uint16_t check2, uint16_t mask2);
void CAN_INTRXNotEmptyEn(CAN_TypeDef *CANx);
void CAN_INTRXNotEmptyDis(CAN_TypeDef *CANx);
uint32_t CAN_INTRXNotEmptyStat(CAN_TypeDef *CANx);
void CAN_INTTXBufEmptyEn(CAN_TypeDef *CANx);
void CAN_INTTXBufEmptyDis(CAN_TypeDef *CANx);
uint32_t CAN_INTTXBufEmptyStat(CAN_TypeDef *CANx);
void CAN_INTErrWarningEn(CAN_TypeDef *CANx);
void CAN_INTErrWarningDis(CAN_TypeDef *CANx);
uint32_t CAN_INTErrWarningStat(CAN_TypeDef *CANx);
void CAN_INTRXOverflowEn(CAN_TypeDef *CANx);
void CAN_INTRXOverflowDis(CAN_TypeDef *CANx);
uint32_t CAN_INTRXOverflowStat(CAN_TypeDef *CANx);
void CAN_INTRXOverflowClear(CAN_TypeDef *CANx);
void CAN_INTWakeupEn(CAN_TypeDef *CANx);
void CAN_INTWakeupDis(CAN_TypeDef *CANx);
uint32_t CAN_INTWakeupStat(CAN_TypeDef *CANx);
void CAN_INTErrPassiveEn(CAN_TypeDef *CANx);
void CAN_INTErrPassiveDis(CAN_TypeDef *CANx);
uint32_t CAN_INTErrPassiveStat(CAN_TypeDef *CANx);
void CAN_INTArbitrLostEn(CAN_TypeDef *CANx);
void CAN_INTArbitrLostDis(CAN_TypeDef *CANx);
uint32_t CAN_INTArbitrLostStat(CAN_TypeDef *CANx);
void CAN_INTBusErrorEn(CAN_TypeDef *CANx);
void CAN_INTBusErrorDis(CAN_TypeDef *CANx);
uint32_t CAN_INTBusErrorStat(CAN_TypeDef *CANx);
#endif //__SWM320_CAN_H__
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