/* FreeRTOS V8.2.0rc1 - Copyright (C) 2014 Real Time Engineers Ltd. All rights reserved VISIT http://www.FreeRTOS.org TO ENSURE YOU ARE USING THE LATEST VERSION. This file is part of the FreeRTOS distribution. FreeRTOS is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License (version 2) as published by the Free Software Foundation >>!AND MODIFIED BY!<< the FreeRTOS exception. >>! NOTE: The modification to the GPL is included to allow you to !<< >>! distribute a combined work that includes FreeRTOS without being !<< >>! obliged to provide the source code for proprietary components !<< >>! outside of the FreeRTOS kernel. !<< FreeRTOS is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. Full license text is available on the following link: http://www.freertos.org/a00114.html 1 tab == 4 spaces! *************************************************************************** * * * Having a problem? Start by reading the FAQ "My application does * * not run, what could be wrong?". Have you defined configASSERT()? * * * * http://www.FreeRTOS.org/FAQHelp.html * * * *************************************************************************** *************************************************************************** * * * FreeRTOS provides completely free yet professionally developed, * * robust, strictly quality controlled, supported, and cross * * platform software that is more than just the market leader, it * * is the industry's de facto standard. * * * * Help yourself get started quickly while simultaneously helping * * to support the FreeRTOS project by purchasing a FreeRTOS * * tutorial book, reference manual, or both: * * http://www.FreeRTOS.org/Documentation * * * *************************************************************************** *************************************************************************** * * * Investing in training allows your team to be as productive as * * possible as early as possible, lowering your overall development * * cost, and enabling you to bring a more robust product to market * * earlier than would otherwise be possible. Richard Barry is both * * the architect and key author of FreeRTOS, and so also the world's * * leading authority on what is the world's most popular real time * * kernel for deeply embedded MCU designs. Obtaining your training * * from Richard ensures your team will gain directly from his in-depth * * product knowledge and years of usage experience. Contact Real Time * * Engineers Ltd to enquire about the FreeRTOS Masterclass, presented * * by Richard Barry: http://www.FreeRTOS.org/contact * * *************************************************************************** *************************************************************************** * * * You are receiving this top quality software for free. Please play * * fair and reciprocate by reporting any suspected issues and * * participating in the community forum: * * http://www.FreeRTOS.org/support * * * * Thank you! * * * *************************************************************************** http://www.FreeRTOS.org - Documentation, books, training, latest versions, license and Real Time Engineers Ltd. contact details. http://www.FreeRTOS.org/plus - A selection of FreeRTOS ecosystem products, including FreeRTOS+Trace - an indispensable productivity tool, a DOS compatible FAT file system, and our tiny thread aware UDP/IP stack. http://www.FreeRTOS.org/labs - Where new FreeRTOS products go to incubate. Come and try FreeRTOS+TCP, our new open source TCP/IP stack for FreeRTOS. http://www.OpenRTOS.com - Real Time Engineers ltd license FreeRTOS to High Integrity Systems ltd. to sell under the OpenRTOS brand. Low cost OpenRTOS licenses offer ticketed support, indemnification and commercial middleware. http://www.SafeRTOS.com - High Integrity Systems also provide a safety engineered and independently SIL3 certified version for use in safety and mission critical applications that require provable dependability. 1 tab == 4 spaces! */ /* * Utility functions required to gather run time statistics. See: * http://www.freertos.org/rtos-run-time-stats.html * * Note that this is a simulated port, where simulated time is a lot slower than * real time, therefore the run time counter values have no real meaningful * units. * * Also note that it is assumed this demo is going to be used for short periods * of time only, and therefore timer overflows are not handled. */ /* FreeRTOS includes. */ #include /* FreeRTOS+Trace includes. */ #include "trcUser.h" /* Variables used in the creation of the run time stats time base. Run time stats record how much time each task spends in the Running state. */ static long long llInitialRunTimeCounterValue = 0LL, llTicksPerHundedthMillisecond = 0LL; /*-----------------------------------------------------------*/ void vConfigureTimerForRunTimeStats( void ) { LARGE_INTEGER liPerformanceCounterFrequency, liInitialRunTimeValue; /* Initialise the variables used to create the run time stats time base. Run time stats record how much time each task spends in the Running state. */ if( QueryPerformanceFrequency( &liPerformanceCounterFrequency ) == 0 ) { llTicksPerHundedthMillisecond = 1; } else { /* How many times does the performance counter increment in 1/100th millisecond. */ llTicksPerHundedthMillisecond = liPerformanceCounterFrequency.QuadPart / 100000LL; /* What is the performance counter value now, this will be subtracted from readings taken at run time. */ QueryPerformanceCounter( &liInitialRunTimeValue ); llInitialRunTimeCounterValue = liInitialRunTimeValue.QuadPart; } } /*-----------------------------------------------------------*/ unsigned long ulGetRunTimeCounterValue( void ) { LARGE_INTEGER liCurrentCount; unsigned long ulReturn; /* What is the performance counter value now? */ QueryPerformanceCounter( &liCurrentCount ); /* Subtract the performance counter value reading taken when the application started to get a count from that reference point, then scale to (simulated) 1/100ths of a millisecond. */ if( llTicksPerHundedthMillisecond == 0 ) { /* The trace macros are probably calling this function before the scheduler has been started. */ ulReturn = 0; } else { ulReturn = ( unsigned long ) ( ( liCurrentCount.QuadPart - llInitialRunTimeCounterValue ) / llTicksPerHundedthMillisecond ); } return ulReturn; } /*-----------------------------------------------------------*/