rt-thread-official/bsp/swm320-lq100/Libraries/SWM320_StdPeriph_Driver/SWM320_can.h

#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<41><4C>CAN_MODE_LISTEN<45><4E>CAN_MODE_SELFTEST
    uint8_t  CAN_BS1;       //CAN_BS1_1tq<74><71>CAN_BS1_2tq<74><71>... ... <20><>CAN_BS1_16tq
    uint8_t  CAN_BS2;       //CAN_BS2_1tq<74><71>CAN_BS2_2tq<74><71>... ... <20><>CAN_BS2_8tq
    uint8_t  CAN_SJW;       //CAN_SJW_1tq<74><71>CAN_SJW_2tq<74><71>CAN_SJW_3tq<74><71>CAN_SJW_4tq
    uint32_t Baudrate;      //<2F><><EFBFBD><EFBFBD><EFBFBD>ʣ<EFBFBD><CAA3><EFBFBD>λ<EFBFBD><CEBB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʣ<EFBFBD>ȡֵ1--1000000
    uint8_t  FilterMode;    //CAN_FILTER_16b<36><62>CAN_FILTER_32b
    union
    {
        uint32_t FilterMask32b;     //FilterCheck & (~FilterMask) == ID & (~FilterMask)<29><>Messageͨ<65><CDA8><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
        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;     //<2F><><EFBFBD><EFBFBD>FIFO<46>ǿգ<C7BF><D5A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݿɶ<DDBF>
    uint8_t  RXOverflowIEn;     //<2F><><EFBFBD><EFBFBD>FIFO<46><4F><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݶ<EFBFBD>ʧ
    uint8_t  ArbitrLostIEn;     //<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʧ<EFBFBD>ٲñ<D9B2><C3B1>ɽ<EFBFBD><C9BD>շ<EFBFBD>
    uint8_t  ErrPassiveIEn;     //<2F><><EFBFBD><EFBFBD>/<2F><><EFBFBD>ʹ<EFBFBD><CDB4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֵ<EFBFBD>ﵽ127
} CAN_InitStructure;

#define CAN_MODE_NORMAL     0   //<2F><><EFBFBD><EFBFBD>ģʽ
#define CAN_MODE_LISTEN     1   //<2F><><EFBFBD><EFBFBD>ģʽ
#define CAN_MODE_SELFTEST   2   //<2F>Բ<EFBFBD>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   //<2F><><EFBFBD><EFBFBD>16λ<36><CEBB><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
#define CAN_FILTER_32b      1   //һ<><D2BB>32λ<32><CEBB><EFBFBD><EFBFBD><EFBFBD><EFBFBD>

typedef struct
{
    uint32_t id;        //<2F><>ϢID
    uint8_t  remote;    //<2F><>Ϣ<EFBFBD>Ƿ<EFBFBD>ΪԶ<CEAA><D4B6>֡
    uint8_t  data[8];   //<2F><><EFBFBD>յ<EFBFBD><D5B5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
    uint8_t  size;      //<2F><><EFBFBD>յ<EFBFBD><D5B5><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݸ<EFBFBD><DDB8><EFBFBD>
} 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__