Не отправляется CAN сообщение

/*********************** main.c*************************/
 
int main (void){
 
 SysClock();
 
CanInit();
 
CanFilter();
 
CAN_ConfigInterupt();
 
 
while(1)
 
{
 
TransmitMsg();
 
delay(100);
 
}
 
}
 
/*****************************************************************************/
 
void CanInit (void){
 
//PA12 - CAN=TX
 
//PA11 - CAN-RX
 
 
 
RCC->APB2ENR |= RCC_APB2ENR_IOPAEN;
 
RCC->APB2ENR |= RCC_APB2ENR_AFIOEN;
 
RCC->APB1ENR |= RCC_APB1ENR_CAN1EN;
 
 
 
GPIOA->CRH |= GPIO_CRH_CNF11_1; //Input with pull-up / pull-down
 
GPIOA->CRH &= ~GPIO_CRH_MODE11; //Input mode (reset state)
 
 
 
GPIOA->CRH |= GPIO_CRH_CNF12_1; //Alternate function output Push-pull
 
GPIOA->CRH |= GPIO_CRH_MODE12;  //Output mode, max speed 50 MHz.
 
AFIO->MAPR &= ~AFIO_MAPR_CAN_REMAP;
 
 
 
CAN1->MCR |= CAN_MCR_INRQ;
 
while(!(CAN1->MSR & CAN_MSR_INAK));
 
 CAN1->MCR &= ~CAN_MCR_TTCM;  
 
  CAN1->MCR &= ~CAN_MCR_ABOM;   
 
  CAN1->MCR &= ~CAN_MCR_AWUM;   
 
  CAN1->MCR &= ~CAN_MCR_NART;   
 
  CAN1->MCR &= ~CAN_MCR_RFLM;   
 
  CAN1->MCR &= ~CAN_MCR_TXFP;   
 
 /** 500kbit/s **/
 
  CAN1->BTR = 0;
 
  CAN1->BTR |= (3 << 0) BRP 3
 
                 | (11 << 16)        //TS1 = 11
 
                     | (4 << 20)         //TS2 = 4
 
                     | (2 << 24)        //SJW = 2
 
                     | (1 << 30)       //Loop Back Mode enabled
 
                     | (1 << 31);        //Silent Mode
 
  CAN1->MCR &= ~CAN_MCR_INRQ;
 
  while(CAN1->MSR & CAN_MSR_INAK);
 
 }
 
/*****************************************************************************/ 
 
void CanFilter(void)
 
{
 
CAN1->FMR |= CAN_FMR_FINIT;
 
CAN1->FMR |= CAN_FMR_CAN2SB;
 
CAN1->FM1R &= ~CAN_FM1R_FBM0;    
 
CAN1->FS1R = CAN_FS1R_FSC0;
 
CAN1->FFA1R = 0x00;
 
CAN1->sFilterRegister[0].FR1 = 0x0;
 
CAN1->sFilterRegister[0].FR2 = 0x0;
 
CAN1->FA1R = CAN_FA1R_FACT0;
 
CAN1->FMR &= ~CAN_FMR_FINIT;
 
}
 
 /********************************************************************************/
 
void TransmitMsg(void)
 
{
 
uint8_t Data[8];
 
 
Data[0] = 1;
 
Data[1] = 2;
 
Data[2] = 3;
 
Data[3] = 4;
 
Data[4] = 5;
 
Data[5] = 6;
 
Data[6] = 7;
 
Data[7] = 8;
 
 
CAN1->sTxMailBox[0].TIR |= (0x222 << 21);
 
CAN1->sTxMailBox[0].TDTR &= 0xFFFFFFF0U;
 
CAN1->sTxMailBox[0].TDTR |= 8;
 
CAN1->sTxMailBox[0].TDLR |= (((uint32_t)Data[3] << (24U)) |
 
                ((uint32_t)Data[2] << (16U)) |
 
                ((uint32_t)Data[1] << (8U)) |
 
                ((uint32_t)Data[0] << (0U)));
 
CAN1->sTxMailBox[0].TDHR |= (((uint32_t)Data[7] << CAN_TDL0R_DATA3_Pos) |
 
                ((uint32_t)Data[6] << CAN_TDL0R_DATA2_Pos) |
 
                ((uint32_t)Data[5] << CAN_TDL0R_DATA1_Pos) |
 
                ((uint32_t)Data[4] << CAN_TDL0R_DATA0_Pos));
 
CAN1->sTxMailBox[0].TIR |= CAN_TI0R_TXRQ;
 
}

                 | (11 << 16)        //TS1 = 11
 
                     | (4 << 20)         //TS2 = 4
 
                     | (2 << 24)        //SJW = 2