                         */
  UsageFault_IRQn           = -10,              /*!&lt; -10  Usage Fault, i.e. Undef Instruction, Illegal State Transition        */
  SVCall_IRQn               =  -5,              /*!&lt; -5 System Service Call via SVC instruction                                */
  DebugMonitor_IRQn         =  -4,              /*!&lt; -4 Debug Monitor                                                          */
  PendSV_IRQn               =  -2,              /*!&lt; -2 Pendable request for syste