LSI Configuration

Macros
#define	__HAL_RCC_LSI_ENABLE()   (RCC->CSR |= (RCC_CSR_LSION))
	Macros to enable or disable the Internal Low Speed oscillator (LSI). More...
#define	__HAL_RCC_LSI_DISABLE()   (RCC->CSR &= ~(RCC_CSR_LSION))

Detailed Description

Macro Definition Documentation

#define __HAL_RCC_LSI_DISABLE

(

)

(RCC->CSR &= ~(RCC_CSR_LSION))

Definition at line 719 of file stm32f7xx_hal_rcc.h.

#define __HAL_RCC_LSI_ENABLE

(

)

(RCC->CSR |= (RCC_CSR_LSION))

Macros to enable or disable the Internal Low Speed oscillator (LSI).

Note

After enabling the LSI, the application software should wait on LSIRDY flag to be set indicating that LSI clock is stable and can be used to clock the IWDG and/or the RTC.

LSI can not be disabled if the IWDG is running.

When the LSI is stopped, LSIRDY flag goes low after 6 LSI oscillator clock cycles.

Definition at line 718 of file stm32f7xx_hal_rcc.h.