Esempi in C++ (Cpp) per LL_RCC_PLL_GetMultiplicator

Esempio n. 1

/**
  * @brief  Return PLL clock frequency used for system domain
  * @retval PLL clock frequency (in Hz)
  */
uint32_t RCC_PLL_GetFreqDomain_SYS(void)
{
  uint32_t pllinputfreq = 0U, pllsource = 0U;

  /* PLL_VCO = (HSE_VALUE or HSI_VALUE / PLL divider) * PLL Multiplicator */

  /* Get PLL source */
  pllsource = LL_RCC_PLL_GetMainSource();

  switch (pllsource)
  {
    case LL_RCC_PLLSOURCE_HSI:       /* HSI used as PLL clock source */
      pllinputfreq = HSI_VALUE;
      break;

    case LL_RCC_PLLSOURCE_HSE:       /* HSE used as PLL clock source */
      pllinputfreq = HSE_VALUE;
      break;

    default:
      pllinputfreq = HSI_VALUE;
      break;
  }
  return __LL_RCC_CALC_PLLCLK_FREQ(pllinputfreq, LL_RCC_PLL_GetMultiplicator(), LL_RCC_PLL_GetDivider());
}

Esempio n. 2

File: stm32f0xx_ll_rcc.c Progetto: DexterLB/builders

/**
  * @brief  Return PLL clock frequency used for system domain
  * @retval PLL clock frequency (in Hz)
  */
uint32_t RCC_PLL_GetFreqDomain_SYS(void)
{
  uint32_t pllinputfreq = 0U, pllsource = 0U;

  /* PLL_VCO = (HSE_VALUE or HSI_VALUE / PLL divider) * PLL Multiplicator */

  /* Get PLL source */
  pllsource = LL_RCC_PLL_GetMainSource();

  switch (pllsource)
  {
#if defined(RCC_PLLSRC_PREDIV1_SUPPORT)
    case LL_RCC_PLLSOURCE_HSI:       /* HSI used as PLL clock source */
      pllinputfreq = HSI_VALUE;
#else
    case LL_RCC_PLLSOURCE_HSI_DIV_2: /* HSI used as PLL clock source */
      pllinputfreq = HSI_VALUE / 2;
#endif /* RCC_PLLSRC_PREDIV1_SUPPORT */
      break;

#if defined(RCC_CFGR_SW_HSI48)
    case LL_RCC_PLLSOURCE_HSI48:     /* HSI48 used as PLL clock source */
      pllinputfreq = HSI48_VALUE;
      break;
#endif /* RCC_CFGR_SW_HSI48 */

    case LL_RCC_PLLSOURCE_HSE:       /* HSE used as PLL clock source */
      pllinputfreq = HSE_VALUE;
      break;

    default:
#if defined(RCC_PLLSRC_PREDIV1_SUPPORT)
      pllinputfreq = HSI_VALUE;
#else
      pllinputfreq = HSI_VALUE / 2;
#endif /* RCC_PLLSRC_PREDIV1_SUPPORT */
      break;
  }
#if defined(RCC_PLLSRC_PREDIV1_SUPPORT)
  return __LL_RCC_CALC_PLLCLK_FREQ(pllinputfreq, LL_RCC_PLL_GetMultiplicator(), LL_RCC_PLL_GetPrediv());
#else
  return __LL_RCC_CALC_PLLCLK_FREQ((pllinputfreq / (LL_RCC_PLL_GetPrediv() + 1U)), LL_RCC_PLL_GetMultiplicator());
#endif /* RCC_PLLSRC_PREDIV1_SUPPORT */
}