STM32L151利用SPI驱动lora模块，无法触发中断怎么解决？

主控芯片STM32L151,利用SPI驱动lora模块，现在发现不触发中断，下边先是配置引脚
GPIO_InitTypeDef GPIO_InitStructure;
__HAL_RCC_GPIOB_CLK_ENABLE( );GPIO_InitStructure.Pin          = GPIO_PIN_4;   ///DIO1   PB4GPIO_InitStructure.Pull         = GPIO_NOPULL;GPIO_InitStructure.Mode         = GPIO_MODE_IT_RISING;GPIO_InitStructure.Speed        = GPIO_SPEED_HIGH;HAL_GPIO_Init(GPIOB,  GPIO_InitStructure );
HAL_NVIC_SetPriority(EXti4_IRQn, 10, 0);HAL_NVIC_EnableIRQ(EXTI0_IRQn);
/DIO0引脚中断/void EXTI4_IRQHandler(void){printf("0rn");uint16_t irqRegs;
if(HAL_GPIO_EXTI_GET_IT(GPIO_PIN_4) != RESET){printf("0-1rn");HAL_GPIO_EXTI_CLEAR_IT(GPIO_PIN_4);
irqRegs = SX126xGetIrqStatus( );SX126xClearIrqStatus( IRQ_RADIO_ALL );printf("0-2rn");if( ( irqRegs   IRQ_TX_DONE ) == IRQ_TX_DONE ){//!< Update operating mode state to a value lower than ref MODE_STDBY_XOSCSX126xSetOperatingMode( MODE_STDBY_RC );LoraTxDoneCallback();printf("1");}
if( ( irqRegs   IRQ_RX_DONE ) == IRQ_RX_DONE ){    if( RxContinuous == false )    {        ///!< Update operating mode state to a value lower than ref MODE_STDBY_XOSC        SX126xSetOperatingMode( MODE_STDBY_RC );        /// WORKAROUND - Implicit Header Mode Timeout Behavior, see DS_SX1261-2_V1.2 datasheet chapter 15.3        /// RegRtcControl = @address 0x0902        SX126xWriteRegister( 0x0902, 0x00 );        /// RegEventMask = @address 0x0944        SX126xWriteRegister( 0x0944, SX126xReadRegister( 0x0944 ) | ( 1 << 1 ) );        /// WORKAROUND END    }    SX126xGetPayload( RadioRxPayload,  Radiosize , 255 );    SX126xGetPacketStatus(  RadioPktStatus );    LoraRxDoneCallback();    printf("2");}if( ( irqRegs   IRQ_CRC_ERROR ) == IRQ_CRC_ERROR ){    if( RxContinuous == false )    {        //!< Update operating mode state to a value lower than ref MODE_STDBY_XOSC        SX126xSetOperatingMode( MODE_STDBY_RC );    }   LoraRxErrorCallback();    printf("3");}if( ( irqRegs   IRQ_CAD_DONE ) == IRQ_CAD_DONE ){    //!< Update operating mode state to a value lower than ref MODE_STDBY_XOSC    SX126xSetOperatingMode( MODE_STDBY_RC );    LoraCadDoneCallback();    printf("4");}if( ( irqRegs   IRQ_RX_TX_TIMEOUT ) == IRQ_RX_TX_TIMEOUT ){    if( SX126xGetOperatingMode( ) == MODE_TX )    {        SX126xSetOperatingMode( MODE_STDBY_RC );        LoraTxTimeoutCallback( );        printf("5");    }    else if( SX126xGetOperatingMode( ) == MODE_RX )    {        SX126xSetOperatingMode( MODE_STDBY_RC );        LoraRxTimeoutCallback( );        printf("6");    }}if( ( irqRegs   IRQ_HEADER_ERROR ) == IRQ_HEADER_ERROR ){    if( RxContinuous == false )    {        //!< Update operating mode state to a value lower than ref MODE_STDBY_XOSC        SX126xSetOperatingMode( MODE_STDBY_RC );    }    LoraRxTimeoutCallback( );    printf("7");}}}
可能是那些原因呢，有什么排除办法