注意中断矢量表里对应位置别错位了，就下面这个表，否则中断发生时就不知跳到哪里去了。
struct interrupt_vector const _vectab[] = {
{0x82, (interrupt_handler_t)_stext}, /* RESET */
{0x82, (interrupt_handler_t)TRAP_IRQHandler}, /* TRAP - Software interrupt */
{0x82, (interrupt_handler_t)TLI_IRQHandler}, /* irq0 - External Top Level interrupt (TLI) */
{0x82, (interrupt_handler_t)AWU_IRQHandler}, /* irq1 - Auto Wake Up from Halt interrupt */
。。。。。。
#if defined(STM8S208) || defined(STM8AF52Ax)
{0x82, (interrupt_handler_t)CAN_RX_IRQHandler}, /* irq8 - CAN Rx interrupt */
{0x82, (interrupt_handler_t)CAN_TX_IRQHandler}, /* irq9 - CAN Tx/ER/SC interrupt */
#elif defined(STM8S903) || defined(STM8AF622x)
{0x82, (interrupt_handler_t)EXTI_PORTF_IRQHandler}, /* irq8 - External interrupt 5 (GPIOF) */
{0x82, (interrupt_handler_t)NonHandledInterrupt}, /* irq9 - Reserved */
#else /*STM8S207, STM8S105 or STM8AF62Ax or STM8AF626x*/
{0x82, (interrupt_handler_t)NonHandledInterrupt}, /* irq8 - Reserved */
{0x82, (interrupt_handler_t)NonHandledInterrupt}, /* irq9 - Reserved */
#endif /* STM8S208 or STM8AF52Ax */
{0x82, (interrupt_handler_t)SPI_IRQHandler}, /* irq10 - SPI End of transfer interrupt */
{0x82, (interrupt_handler_t)TIM1_UPD_OVF_TRG_BRK_IRQHandler}, /* irq11 - TIM1 Update/Overflow/Trigger/Break interrupt */
{0x82, (interrupt_handler_t)TIM1_CAP_COM_IRQHandler}, /* irq12 - TIM1 Capture/Compare interrupt */
。。。。。。
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