Function SysTick_Config

bsp/efm32/Libraries/CMSIS/Include/core_cm3.h:1517–1528

\brief System Tick Configuration The function initializes the System Timer and its interrupt, and starts the System Tick Timer. Counter is in free running mode to generate periodic interrupts. \param [in] ticks Number of ticks between two interrupts. \return 0 Function succeeded. \return 1 Function failed. \note When the variable __Vendor_S

 */
__STATIC_INLINE uint32_t SysTick_Config(uint32_t ticks)
{
  if (ticks > SysTick_LOAD_RELOAD_Msk)  return (1);            /* Reload value impossible */

  SysTick->LOAD  = (ticks & SysTick_LOAD_RELOAD_Msk) - 1;      /* set reload register */
  NVIC_SetPriority (SysTick_IRQn, (1<<__NVIC_PRIO_BITS) - 1);  /* set Priority for Systick Interrupt */
  SysTick->VAL   = 0;                                          /* Load the SysTick Counter Value */
  SysTick->CTRL  = SysTick_CTRL_CLKSOURCE_Msk |
                   SysTick_CTRL_TICKINT_Msk   |
                   SysTick_CTRL_ENABLE_Msk;                    /* Enable SysTick IRQ and SysTick Timer */
  return (0);                                                  /* Function successful */
}

#endif