System Clock Source

Collaboration diagram for System Clock Source:

Macros
#define	RCC_SYSCLKSOURCE_HSI   RCC_CFGR_SW_HSI
#define	RCC_SYSCLKSOURCE_HSE   RCC_CFGR_SW_HSE
#define	RCC_SYSCLKSOURCE_PLLCLK   RCC_CFGR_SW_PLL
#define	RCC_SYSCLKSOURCE_PLLRCLK   ((uint32_t)(RCC_CFGR_SW_0 | RCC_CFGR_SW_1))

Detailed Description

Note

The RCC_SYSCLKSOURCE_PLLRCLK parameter is available only for STM32F446xx devices.

Macro Definition Documentation

RCC_SYSCLKSOURCE_HSI

#define RCC_SYSCLKSOURCE_HSI   RCC_CFGR_SW_HSI

RCC_SYSCLKSOURCE_HSE

#define RCC_SYSCLKSOURCE_HSE   RCC_CFGR_SW_HSE

RCC_SYSCLKSOURCE_PLLCLK

#define RCC_SYSCLKSOURCE_PLLCLK   RCC_CFGR_SW_PLL

RCC_SYSCLKSOURCE_PLLRCLK

#define RCC_SYSCLKSOURCE_PLLRCLK   ((uint32_t)(RCC_CFGR_SW_0 | RCC_CFGR_SW_1))