HAL Control functions

Functions
void	HAL_IncTick (void)
	This function is called to increment a global variable "uwTick" used as application time base. More...
void	HAL_Delay (uint32_t Delay)
	This function provides minimum delay (in milliseconds) based on variable incremented. More...
void	HAL_Delay_us (uint32_t us)
void	HAL_Delay_us_ (__IO uint32_t us)
uint32_t	HAL_GetTick (void)
	Provide a tick value in millisecond. More...
void	HAL_SuspendTick (void)
	Suspend Tick increment. More...
void	HAL_ResumeTick (void)
	Resume Tick increment. More...

Detailed Description

HAL_Exported_Functions_Group1

Function Documentation

HAL_Delay()

void HAL_Delay

(

uint32_t

Delay

)

This function provides minimum delay (in milliseconds) based on variable incremented.

Note

In the default implementation , SysTick timer is the source of time base. It is used to generate interrupts at regular time intervals where uwTick is incremented.

This function is declared as __weak to be overwritten in case of other implementations in user file.

Parameters

Delay

specifies the delay time length, in milliseconds.

Return values

None

HAL_GetTick()

uint32_t HAL_GetTick

(

void

)

Provide a tick value in millisecond.

Note

This function is declared as __weak to be overwritten in case of other implementations in user file.

Return values

tick

value

HAL_IncTick()

void HAL_IncTick

(

void

)

This function is called to increment a global variable "uwTick" used as application time base.

Note

In the default implementation, this variable is incremented each 1ms in SysTick ISR.

This function is declared as __weak to be overwritten in case of other implementations in user file.

Return values

None

HAL_ResumeTick()

void HAL_ResumeTick

(

void

)

Resume Tick increment.

Note

In the default implementation , SysTick timer is the source of time base. It is used to generate interrupts at regular time intervals. Once HAL_ResumeTick() is called, the SysTick interrupt will be enabled and so Tick increment is resumed.

This function is declared as __weak to be overwritten in case of other implementations in user file.

Return values

None

HAL_SuspendTick()

void HAL_SuspendTick

(

void

)

Suspend Tick increment.

Note

In the default implementation , SysTick timer is the source of time base. It is used to generate interrupts at regular time intervals. Once HAL_SuspendTick() is called, the SysTick interrupt will be disabled and so Tick increment is suspended.

This function is declared as __weak to be overwritten in case of other implementations in user file.

Return values

None