17.4.6 SysTick

SysTick is an internal interrupt used to handle interrupts raised by the system timer. Its handler is SysTick_Handler with IRQ number SysTick_IRQn, it is always enabled and has configurable priority. This handler can also be triggered via software using the following code.

SCB->ICSR = SCB_ICSR_PENDSTSET_Msk;