Functions
void	LL_Init1msTick (uint32_t HCLKFrequency)
	This function configures the Cortex-M SysTick source to have 1ms time base.
void	LL_mDelay (uint32_t Delay)
	This function provides accurate delay (in milliseconds) based on SysTick counter flag.
__STATIC_INLINE void	LL_InitTick (uint32_t HCLKFrequency, uint32_t Ticks)
	This function configures the Cortex-M SysTick source of the time base.

Function Documentation

void LL_Init1msTick ( uint32_t HCLKFrequency )

This function configures the Cortex-M SysTick source to have 1ms time base.

Note:: When a RTOS is used, it is recommended to avoid changing the Systick configuration by calling this function, for a delay use rather osDelay RTOS service.

Parameters:

HCLKFrequency HCLK frequency in Hz

Note:: HCLK frequency can be calculated thanks to RCC helper macro or function LL_RCC_GetSystemClocksFreq

Return values:

None

Definition at line 275 of file stm32f4xx_ll_utils.c.

__STATIC_INLINE void LL_InitTick	(	uint32_t	HCLKFrequency,
		uint32_t	Ticks
	)

This function configures the Cortex-M SysTick source of the time base.

Parameters:

HCLKFrequency HCLK frequency in Hz (can be calculated thanks to RCC helper macro)

Note:: When a RTOS is used, it is recommended to avoid changing the SysTick configuration by calling this function, for a delay use rather osDelay RTOS service.

Parameters:

Ticks Number of ticks

Return values:

None

Definition at line 277 of file stm32f4xx_ll_utils.h.

void LL_mDelay ( uint32_t Delay )

This function provides accurate delay (in milliseconds) based on SysTick counter flag.

Note:: When a RTOS is used, it is recommended to avoid using blocking delay and use rather osDelay service.; To respect 1ms timebase, user should call LL_Init1msTick function which will configure Systick to 1ms

Parameters:

Delay specifies the delay time length, in milliseconds.

Return values:

None

Definition at line 291 of file stm32f4xx_ll_utils.c.

Functions