Functions

Functions
void	hal_dwt_enable (uint32_t _demcr_initial, uint32_t _dwt_ctrl_initial)
	Enable the DWT. More...
void	hal_dwt_disable (uint32_t _demcr_initial, uint32_t _dwt_ctrl_initial)
	Disable the DWT. More...
__STATIC_FORCEINLINE void	delay_us (uint32_t number_of_us)
	Function for delaying execution for number of us. More...
__STATIC_FORCEINLINE void	delay_ms (uint32_t number_of_ms)
	Function for delaying execution for number of milliseconds. More...

Detailed Description

Function Documentation

delay_ms()

__STATIC_FORCEINLINE void delay_ms

(

uint32_t

number_of_ms

)

Function for delaying execution for number of milliseconds.

Note

GR55xx is based on ARM Cortex-M4, and this fuction is based on Data Watchpoint and Trace (DWT) unit so delay is precise.

Function internally calls delay_us so the maximum delay is the same as in case of delay_us.

Parameters

number_of_ms

The maximum delay time is about 67 seconds in 64M system clock. The faster the system clock, the shorter the maximum delay time.

Definition at line 313 of file gr55xx_delay.h.

References delay_us().

delay_us()

__STATIC_FORCEINLINE void delay_us

(

uint32_t

number_of_us

)

Function for delaying execution for number of us.

Note

GR55xxx is based on ARM Cortex-M4, and this fuction is based on Data Watchpoint and Trace (DWT) unit so delay is precise.

Parameters

number_of_us

The maximum delay time is about 67 seconds in 64M system clock. The faster the system clock, the shorter the maximum delay time.

Definition at line 154 of file gr55xx_delay.h.

References HAL_TIMEOUT_DEINIT, and HAL_TIMEOUT_INIT.

Referenced by delay_ms().

hal_dwt_disable()

void hal_dwt_disable	(	uint32_t	_demcr_initial,
		uint32_t	_dwt_ctrl_initial
	)

Disable the DWT.

Parameters

_demcr_initial	demcr initial.
_dwt_ctrl_initial	dwt ctrl initial.

hal_dwt_enable()

void hal_dwt_enable	(	uint32_t	_demcr_initial,
		uint32_t	_dwt_ctrl_initial
	)

Enable the DWT.

Parameters

_demcr_initial	demcr initial.
_dwt_ctrl_initial	dwt ctrl initial.