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https://github.com/Seeed-Studio/Seeed_Arduino_CAN.git
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Add mcp2515 file function
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+1505
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#include "mcp_can.h"
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#include "mcp2515_can_dfs.h"
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class mcp2515 : public MCP_CAN {
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public:
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void init_CS(byte _CS);
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void enableTxInterrupt(bool enable = true); // enable transmit interrupt
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byte begin(byte speedset, const byte clockset = MCP_16MHz); // init can
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byte init_Mask(byte num, byte ext, unsigned long ulData);
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byte init_Filt(byte num, byte ext, unsigned long ulData); // init filters
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void setSleepWakeup(const byte enable);
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byte sleep();
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byte wake();
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byte setMode(byte opMode);
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byte getMode();
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byte checkReceive(void);
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byte checkError(void);
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byte readMsgBufID(byte status, volatile unsigned long* id, volatile byte* ext, volatile byte* rtr, volatile byte* len,
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volatile byte* buf);
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byte trySendMsgBuf(unsigned long id, byte ext, byte rtrBit, byte len, const byte* buf, byte iTxBuf);
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byte sendMsgBuf(byte status, unsigned long id, byte ext, byte rtrBit, byte len, volatile const byte* buf);
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byte sendMsgBuf(unsigned long id, byte ext, byte rtrBit, byte len, const byte* buf, bool wait_sent = true); // send buf
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byte sendMsgBuf(unsigned long id, byte ext, byte len, const byte* buf, bool wait_sent = true); // send buf
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void clearBufferTransmitIfFlags(byte flags);
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byte readRxTxStatus(void);
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byte checkClearRxStatus(byte* status);
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byte checkClearTxStatus(byte* status, byte iTxBuf);
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bool mcpPinMode(const byte pin, const byte mode);
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bool mcpDigitalWrite(const byte pin, const byte mode);
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byte mcpDigitalRead(const byte pin);
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void mcp2515_reset(void); // reset mcp2515
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byte mcp2515_readRegister(const byte address); // read mcp2515's register
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void mcp2515_readRegisterS(const byte address,
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byte values[],
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const byte n);
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void mcp2515_setRegister(const byte address, // set mcp2515's register
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const byte value);
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void mcp2515_setRegisterS(const byte address, // set mcp2515's registers
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const byte values[],
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const byte n);
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void mcp2515_initCANBuffers(void);
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void mcp2515_modifyRegister(const byte address, // set bit of one register
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const byte mask,
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const byte data);
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byte mcp2515_readStatus(void); // read mcp2515's Status
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byte mcp2515_setCANCTRL_Mode(const byte newmode); // set mode
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byte mcp2515_requestNewMode(const byte newmode); // Set mode
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byte mcp2515_configRate(const byte canSpeed, const byte clock); // set baudrate
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byte mcp2515_init(const byte canSpeed, const byte clock); // mcp2515init
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void mcp2515_write_id(const byte mcp_addr, // write can id
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const byte ext,
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const unsigned long id);
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void mcp2515_read_id(const byte mcp_addr, // read can id
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byte* ext,
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unsigned long* id);
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void mcp2515_write_canMsg(const byte buffer_sidh_addr, unsigned long id, byte ext, byte rtr, byte len,
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volatile const byte* buf); // read can msg
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void mcp2515_read_canMsg(const byte buffer_load_addr, volatile unsigned long* id, volatile byte* ext,
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volatile byte* rtr, volatile byte* len, volatile byte* buf); // write can msg
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void mcp2515_start_transmit(const byte mcp_addr); // start transmit
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byte mcp2515_getNextFreeTXBuf(byte* txbuf_n); // get Next free txbuf
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byte mcp2515_isTXBufFree(byte* txbuf_n, byte iBuf); // is buffer by index free
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/*
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can operator function
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*/
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byte sendMsg(unsigned long id, byte ext, byte rtrBit, byte len, const byte* buf, bool wait_sent = true); // send message
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private:
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byte ext_flg; // identifier xxxID
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// either extended (the 29 LSB) or standard (the 11 LSB)
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unsigned long can_id; // can id
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byte rtr; // rtr
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byte SPICS;
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SPIClass* pSPI;
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byte nReservedTx = 0; // Count of tx buffers for reserved send
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byte mcpMode;
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};
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