RCC USARTx Clock Config

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Macros
#define	__HAL_RCC_USART1_CONFIG(__USART1CLKSOURCE__)    MODIFY_REG(RCC->CFGR3, RCC_CFGR3_USART1SW, (uint32_t)(__USART1CLKSOURCE__))
	Macro to configure the USART1 clock (USART1CLK).
#define	__HAL_RCC_GET_USART1_SOURCE()   ((uint32_t)(READ_BIT(RCC->CFGR3, RCC_CFGR3_USART1SW)))
	Macro to get the USART1 clock source.

Detailed Description

Macro Definition Documentation

__HAL_RCC_GET_USART1_SOURCE

#define __HAL_RCC_GET_USART1_SOURCE

(

)

((uint32_t)(READ_BIT(RCC->CFGR3, RCC_CFGR3_USART1SW)))

Macro to get the USART1 clock source.

Return values

The	clock source can be one of the following values: RCC_USART1CLKSOURCE_HSI HSI selected as USART1 clock RCC_USART1CLKSOURCE_SYSCLK System Clock selected as USART1 clock RCC_USART1CLKSOURCE_LSE LSE selected as USART1 clock

__HAL_RCC_USART1_CONFIG

#define __HAL_RCC_USART1_CONFIG

(

__USART1CLKSOURCE__

)

MODIFY_REG(RCC->CFGR3, RCC_CFGR3_USART1SW, (uint32_t)(__USART1CLKSOURCE__))

Macro to configure the USART1 clock (USART1CLK).

Parameters

__USART1CLKSOURCE__

specifies the USART1 clock source. This parameter can be one of the following values: RCC_USART1CLKSOURCE_HSI HSI selected as USART1 clock RCC_USART1CLKSOURCE_SYSCLK System Clock selected as USART1 clock RCC_USART1CLKSOURCE_LSE LSE selected as USART1 clock