HSE Configuration

Macros
#define	__HAL_RCC_HSE_PREDIV_CONFIG(__HSE_PREDIV_VALUE__)   MODIFY_REG(RCC->CFGR,RCC_CFGR_PLLXTPRE, (uint32_t)(__HSE_PREDIV_VALUE__))
	Macro to configure the External High Speed oscillator (HSE) Predivision factor for PLL. More...
#define	__HAL_RCC_HSE_GET_PREDIV()   READ_BIT(RCC->CFGR, RCC_CFGR_PLLXTPRE)
	Macro to get prediv1 factor for PLL. More...

Detailed Description

Macro Definition Documentation

__HAL_RCC_HSE_GET_PREDIV

#define __HAL_RCC_HSE_GET_PREDIV

(

)

READ_BIT(RCC->CFGR, RCC_CFGR_PLLXTPRE)

Macro to get prediv1 factor for PLL.

Definition at line 1617 of file stm32f1xx_hal_rcc_ex.h.

__HAL_RCC_HSE_PREDIV_CONFIG

#define __HAL_RCC_HSE_PREDIV_CONFIG

(

__HSE_PREDIV_VALUE__

)

MODIFY_REG(RCC->CFGR,RCC_CFGR_PLLXTPRE, (uint32_t)(__HSE_PREDIV_VALUE__))

Macro to configure the External High Speed oscillator (HSE) Predivision factor for PLL.

Note

Predivision factor can not be changed if PLL is used as system clock In this case, you have to select another source of the system clock, disable the PLL and then change the HSE predivision factor.

Parameters

<strong>HSE_PREDIV_VALUE</strong>

specifies the division value applied to HSE. This parameter must be a number between RCC_HSE_PREDIV_DIV1 and RCC_HSE_PREDIV_DIV2.

Definition at line 1601 of file stm32f1xx_hal_rcc_ex.h.