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typedef enum {
/******  Cortex-M4 Processor Exceptions Numbers ****************************************************************/
  NonMaskableInt_IRQn         = -14,    /*!< 2 Non Maskable Interrupt                                          */
  MemoryManagement_IRQn       = -12,    /*!< 4 Cortex-M4 Memory Management Interrupt                           */
  BusFault_IRQn               = -11,    /*!< 5 Cortex-M4 Bus Fault Interrupt                                   */
  UsageFault_IRQn             = -10,    /*!< 6 Cortex-M4 Usage Fault Interrupt                                 */
  SVCall_IRQn                 = -5,     /*!< 11 Cortex-M4 SV Call Interrupt                                    */
  DebugMonitor_IRQn           = -4,     /*!< 12 Cortex-M4 Debug Monitor Interrupt                              */
  PendSV_IRQn                 = -2,     /*!< 14 Cortex-M4 Pend SV Interrupt                                    */
  SysTick_IRQn                = -1,     /*!< 15 Cortex-M4 System Tick Interrupt                                */
/******  STM32 specific Interrupt Numbers **********************************************************************/
  WWDG_IRQn                   = 0,      /*!< Window WatchDog Interrupt                                         */
  PVD_IRQn                    = 1,      /*!< PVD through EXTI Line detection Interrupt                         */
  TAMP_STAMP_IRQn             = 2,      /*!< Tamper and TimeStamp interrupts through the EXTI line             */
  RTC_WKUP_IRQn               = 3,      /*!< RTC Wakeup interrupt through the EXTI line                        */
  FLASH_IRQn                  = 4,      /*!< FLASH global Interrupt                                            */
  RCC_IRQn                    = 5,      /*!< RCC global Interrupt                                              */
  EXTI0_IRQn                  = 6,      /*!< EXTI Line0 Interrupt                                              */

[...]
}

Вызвать можно только "STM32 specific Interrupt"

/**
@brief Generate interrupt
@param [in] vector Vector ID [0-238]
*/
inline void SoftwareTrigger(Vector id) { NVIC->STIR = id; }