定义
#define	RCC_MCO1SOURCE_NOCLOCK 0x00000000U
#define	RCC_MCO1SOURCE_SYSCLK RCC_CFGR_MCOSEL_0
#define	RCC_MCO1SOURCE_HSI (RCC_CFGR_MCOSEL_0\| RCC_CFGR_MCOSEL_1)
#define	RCC_MCO1SOURCE_HSE RCC_CFGR_MCOSEL_2
#define	RCC_MCO1SOURCE_PLLCLK (RCC_CFGR_MCOSEL_0\|RCC_CFGR_MCOSEL_2)
#define	RCC_MCO1SOURCE_LSI (RCC_CFGR_MCOSEL_1\|RCC_CFGR_MCOSEL_2)
#define	RCC_MCO1SOURCE_LSE (RCC_CFGR_MCOSEL_0\|RCC_CFGR_MCOSEL_1\|RCC_CFGR_MCOSEL_2)
#define	RCC_MCO1SOURCE_HSI48 RCC_CFGR_MCOSEL_3

定义文档

#define RCC_MCO1SOURCE_HSE RCC_CFGR_MCOSEL_2

选择HSE作为MCO1时钟源

Definition at line 416 of file stm32g4xx_hal_rcc.h.

#define RCC_MCO1SOURCE_HSI (RCC_CFGR_MCOSEL_0| RCC_CFGR_MCOSEL_1)

选择HSI作为MCO1时钟源

Definition at line 415 of file stm32g4xx_hal_rcc.h.

#define RCC_MCO1SOURCE_HSI48 RCC_CFGR_MCOSEL_3

选择HSI48作为MCO1时钟源

Definition at line 420 of file stm32g4xx_hal_rcc.h.

#define RCC_MCO1SOURCE_LSE (RCC_CFGR_MCOSEL_0|RCC_CFGR_MCOSEL_1|RCC_CFGR_MCOSEL_2)

选择LSE作为MCO1时钟源

Definition at line 419 of file stm32g4xx_hal_rcc.h.

#define RCC_MCO1SOURCE_LSI (RCC_CFGR_MCOSEL_1|RCC_CFGR_MCOSEL_2)

选择LSI作为MCO1时钟源

Definition at line 418 of file stm32g4xx_hal_rcc.h.

#define RCC_MCO1SOURCE_NOCLOCK 0x00000000U

MCO1输出禁用，MCO1上无时钟

Definition at line 413 of file stm32g4xx_hal_rcc.h.

#define RCC_MCO1SOURCE_PLLCLK (RCC_CFGR_MCOSEL_0|RCC_CFGR_MCOSEL_2)

选择PLLCLK作为MCO1时钟源

Definition at line 417 of file stm32g4xx_hal_rcc.h.

#define RCC_MCO1SOURCE_SYSCLK RCC_CFGR_MCOSEL_0

选择SYSCLK作为MCO1时钟源

Definition at line 414 of file stm32g4xx_hal_rcc.h.