os.c File Reference

Implementation of the tasks and resources used by the system. More...

#include "os.h"
#include "ftask.h"

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Functions
void	OS_InitializeOperatingSystem (void)
	Initialization the RTOS interface. More...
void	OS_IncrementTimer (void)
	Increments the system timer os_timer. More...
bool	OS_CheckTimeHasPassedWithTimestamp (uint32_t oldTimeStamp_ms, uint32_t currentTimeStamp_ms, uint32_t timeToPass_ms)
	This function checks if timeToPass has passed since the last timestamp to now. More...
bool	OS_CheckTimeHasPassed (uint32_t oldTimeStamp_ms, uint32_t timeToPass_ms)
	This function checks if timeToPass has passed since the last timestamp to now. More...
STD_RETURN_TYPE_e	OS_CheckTimeHasPassedSelfTest (void)
	Does a self check if the OS_CheckTimeHasPassedWithTimestamp works as expected. More...
OS_TIMER_s *	TEST_OS_GetOsTimer ()

Variables
static OS_TIMER_s	os_timer = {0u, 0u, 0u, 0u, 0u, 0u, 0u}
volatile OS_BOOT_STATE_e	os_boot = OS_OFF
uint32_t	os_schedulerStartTime = 0u
	Scheduler "zero" time for task phase control. More...

Detailed Description

Implementation of the tasks and resources used by the system.

Copyright

© 2010 - 2022, Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V. All rights reserved.

SPDX-License-Identifier: BSD-3-Clause

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Author

foxBMS Team

Date

2019-08-27 (date of creation)

Updated

2022-05-30 (date of last update)

Version

v1.3.0

Prefix

OS

Definition in file os.c.

Function Documentation

OS_CheckTimeHasPassed()

bool OS_CheckTimeHasPassed	(	uint32_t	oldTimeStamp_ms,
		uint32_t	timeToPass_ms
	)

This function checks if timeToPass has passed since the last timestamp to now.

This function retrieves the current time stamp with OS_GetTickCount(), compares it to the oldTimestamp_ms and checks if more or equal of timetoPass_ms timer increments have passed.

Parameters

[in]	oldTimeStamp_ms	timestamp that shall be compared to the current time in ms
[in]	timeToPass_ms	timer increments (in ms) that shall pass between oldTimeStamp_ms and now

Returns

true in the case that more than timeToPass_ms timer increments have passed, otherwise false

Definition at line 144 of file os.c.

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OS_CheckTimeHasPassedSelfTest()

STD_RETURN_TYPE_e OS_CheckTimeHasPassedSelfTest

(

void

)

Does a self check if the OS_CheckTimeHasPassedWithTimestamp works as expected.

This functions tests some values with OS_CheckTimeHasPassedWithTimestamp(). It is intended to be side-effect free and to be callable any time to verify from the running program if this portion of the software is working as expected. returns STD_OK if the self check passes successfully, STD_NOT_OK otherwise

Definition at line 148 of file os.c.

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OS_CheckTimeHasPassedWithTimestamp()

bool OS_CheckTimeHasPassedWithTimestamp	(	uint32_t	oldTimeStamp_ms,
		uint32_t	currentTimeStamp_ms,
		uint32_t	timeToPass_ms
	)

This function checks if timeToPass has passed since the last timestamp to now.

This function is passed the current time stamp as argument currentTimeStamp_ms, compares it to the oldTimestamp_ms and checks if more or equal of timetoPass_ms timer increments have passed.

Parameters

[in]	oldTimeStamp_ms	timestamp that shall be compared to the current time in ms
[in]	currentTimeStamp_ms	timestamp of the current time in ms
[in]	timeToPass_ms	timer increments (in ms) that shall pass between oldTimeStamp_ms and now

Returns

true in the case that more than timeToPass_ms timer increments have passed, otherwise false

Definition at line 118 of file os.c.

OS_IncrementTimer()

void OS_IncrementTimer

(

void

)

Increments the system timer os_timer.

The os_timer is a runtime-counter, counting the time since the last reset.

Definition at line 94 of file os.c.

OS_InitializeOperatingSystem()

void OS_InitializeOperatingSystem

(

void

)

Initialization the RTOS interface.

This function initializes the scheduler and then creates queues and tasks.

Definition at line 79 of file os.c.

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TEST_OS_GetOsTimer()

OS_TIMER_s* TEST_OS_GetOsTimer

(

)

Definition at line 181 of file os.c.

Variable Documentation

os_boot

volatile OS_BOOT_STATE_e os_boot = OS_OFF

boot state of the OS

Definition at line 69 of file os.c.

os_schedulerStartTime

uint32_t os_schedulerStartTime = 0u

Scheduler "zero" time for task phase control.

timestamp of the scheduler start

Definition at line 71 of file os.c.

os_timer

OS_TIMER_s os_timer = {0u, 0u, 0u, 0u, 0u, 0u, 0u}

static

timer counter since the 1ms task has started

Definition at line 65 of file os.c.