__HAL_RCC_GET_PLL_OSCSOURCE macro

Macro to get the oscillator used as PLL clock source.

Syntax

from stm32f4xx_hal_rcc.h:1089

#define __HAL_RCC_GET_PLL_OSCSOURCE() ((uint32_t)(RCC->PLLCFGR & RCC_PLLCFGR_PLLSRC))

Return value

The oscillator used as PLL clock source. The returned value can be one of the following: - RCC_PLLSOURCE_HSI: HSI oscillator is used as PLL clock source. - RCC_PLLSOURCE_HSE: HSE oscillator is used as PLL clock source.

Examples

__HAL_RCC_GET_PLL_OSCSOURCE is referenced by 18 libraries and example projects.

References

Location	Text
stm32f4xx_hal_rcc.h:1089	#define __HAL_RCC_GET_PLL_OSCSOURCE() ((uint32_t)(RCC->PLLCFGR & RCC_PLLCFGR_PLLSRC))
stm32f4xx_hal_rcc.c:908	if(__HAL_RCC_GET_PLL_OSCSOURCE() != RCC_PLLSOURCE_HSI)
stm32f4xx_hal_rcc_ex.c:3101	if(__HAL_RCC_GET_PLL_OSCSOURCE() != RCC_PLLSOURCE_HSI)
stm32f4xx_hal_rcc_ex.c:3121	if(__HAL_RCC_GET_PLL_OSCSOURCE() != RCC_PLLSOURCE_HSI)