有谁用C8051F506做过CAN通信？我要实现只发送不接收不成功

/// <summary>

/// 初始化CAN

/// </summary>

/// <returns></returns>

void Init_Can(void)

{

    uint8_t i;

    

    SFRPAGE   = CAN0_PAGE;



    CAN0CN |= 0x01;        // Start Intialization mode

    CAN0CN |= 0x4E;        // Enable Status, Error,    Module Interrupts,  Enable access to bit timing register

//    CAN0BT = 0x5CCF;       //Based on 16 Mhz CAN clock, set the CAN bit rate to 50kbps

    CAN0BT = 0x5CCB;        //12Mhz CAN clock, set the CAN bit rate to 50kbps

//    CAN0BT = 0x49C7;       //125K

//    CAN0BT = 0x49C3;       //250K

//    CAN0BT = 0x49C1;       //500K

//    CAN0BT = 0x49C0;       //1M,不用

    CAN0IF1CM = 0x00F0;       // Write Operation, Transfer ID Mask, MDir, MXtd, Transfer ID, Dir, Xtd, 

                           //MsgVal,  Transfer Control Bits, Don't set TxRqst or transfer data

    for (i = 1; i <= 32; i++)

    {

        // Set remaining message objects to be Ignored

        CAN0IF1A2 = 0x0000;              // Set MsgVal to 0 to Ignore

        CAN0IF1CR = i;                // Start command request

      

        while (CAN0IF1CRH & 0x80) {}     // Poll on Busy bit

    }



//即使将下面这个for()注释，也即所有32个message object设置为无效，也不能阻止接收

    for (i = 1; i <= MAX_MESSAGE_OBJ; i++)

    {

        CAN0IF1M1 = 0xffff;    // 29位ID

        CAN0IF1M2 = 0xffff;    // Enable Extended Identifier for filtering, Used Direction bit for filtering, Use ID bits 28-0 for filtering

        CAN0IF1MC = 0x1880 | 5;  // Enable Transmit Interrupt, Message Object is a Single Message, Message Size set by #define

        CAN0IF1A1 = DeviceID;

        CAN0IF1A2 = 0xe000 | (DeviceID >> 16);//Msgval为1

        CAN0IF1MC = 0x0880 | 5;

        CAN0IF1CR = i;

        while (CAN0IF1CRH & 0x80) {}      // Poll on Busy bit

    }

    

    CAN0CN &= ~0x41;                       // Return to Normal Mode and disable

                                       // access to bit timing register

    SFRPAGE = ACTIVE_PAGE; 

}