ARM Systick Utilities. More...

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Functions
void	BOARD_SystickEnable (void)
	Function to enable systicks framework. More...

void	BOARD_SystickStart (int32_t *pStart)
	Function to Record the Start systick. More...

int32_t	BOARD_SystickElapsedTicks (int32_t *pStart)
	Function to compute the Elapsed systicks. More...

uint32_t	BOARD_SystickElapsedTime_us (int32_t *pStart)
	Function to compute the Elapsed Time. More...

void	BOARD_DELAY_ms (uint32_t delay_ms)
	Function to insert delays. More...

Detailed Description

ARM Systick Utilities.

This file provides systick based counts for the developer to get cycle counts for measuring time delays.

Definition in file systick_utils.h.

Function Documentation

◆ BOARD_DELAY_ms()

void BOARD_DELAY_ms ( uint32_t delay_ms )

Function to insert delays.

This function blocks for the specified milli seconds by using the elapsed systicks to determine time delays.

Parameters

[in] delay_ms The required time to block.

Returns: void.

Constraints:: None. Yes

Definition at line 116 of file systick_utils.c.

References BOARD_SystickElapsedTicks(), BOARD_SystickStart(), and int32_t().

Referenced by ADS_DetectShield(), ADS_MMA9553Query(), DIFF_P_I2C_Initialize(), DIFF_P_SPI_Initialize(), FXLC95000_SPI_Initialize(), FXLS8962_I2C_DeInit(), FXLS8962_SPI_Deinit(), MMA9553_I2C_Initialize(), MMA9553_SPI_Initialize(), Sensor_I2C_BlockWrite(), and Sensor_SPI_BlockWrite().

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◆ BOARD_SystickElapsedTicks()

int32_t BOARD_SystickElapsedTicks ( int32_t * pStart )

Function to compute the Elapsed systicks.

This function computes the elapsed ticks by getting the difference of the current tick to the one in the arguement.

Parameters

[in] pStart Pointer to the variable contating the start systick.

Returns: int32_t The elapsed systicks.

Constraints:: None. Yes

Definition at line 87 of file systick_utils.c.

References g_ovf_stamp, int32_t(), SYST_CVR, SYST_RVR, and SysTick_GetOVFCount().

Referenced by BOARD_DELAY_ms(), and BOARD_SystickElapsedTime_us().

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◆ BOARD_SystickElapsedTime_us()

uint32_t BOARD_SystickElapsedTime_us ( int32_t * pStart )

Function to compute the Elapsed Time.

This function computes the elapsed Time in micro seconds by getting the difference of the current tick to the one in the arguement. It also updates the start tick to the current systick.

Parameters

[in] pStart Pointer to the variable contating the start systick.