FreeRTOS_on_mbed_v1 - Please see my note book http://mbed.org/users/ken…

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Please see my note book http://mbed.org/users/kenjiArai/notebook/freertos-on-mbed-board-with-mbed-cloud-ide--never-/

This is too old.
Below is another FreeRTOS on mbed.
http://developer.mbed.org/users/rgrover1/code/FreeRTOS/
I don't know it works well or not.
I have not evaluated it.

FreeRTOS/Common/Minimal/flash.c@0:d4960fcea8ff, 2011-01-01 (annotated)

Committer:: kenjiArai
Date:: Sat Jan 01 11:17:45 2011 +0000
Revision:: 0:d4960fcea8ff

Who changed what in which revision?

User	Revision	Line number	New contents of line
kenjiArai	0:d4960fcea8ff	1	/*
kenjiArai	0:d4960fcea8ff	2	FreeRTOS V6.0.3 - Copyright (C) 2010 Real Time Engineers Ltd.
kenjiArai	0:d4960fcea8ff	3
kenjiArai	0:d4960fcea8ff	4	***************************************************************************
kenjiArai	0:d4960fcea8ff	5	* *
kenjiArai	0:d4960fcea8ff	6	* If you are: *
kenjiArai	0:d4960fcea8ff	7	* *
kenjiArai	0:d4960fcea8ff	8	* + New to FreeRTOS, *
kenjiArai	0:d4960fcea8ff	9	* + Wanting to learn FreeRTOS or multitasking in general quickly *
kenjiArai	0:d4960fcea8ff	10	* + Looking for basic training, *
kenjiArai	0:d4960fcea8ff	11	* + Wanting to improve your FreeRTOS skills and productivity *
kenjiArai	0:d4960fcea8ff	12	* *
kenjiArai	0:d4960fcea8ff	13	* then take a look at the FreeRTOS eBook *
kenjiArai	0:d4960fcea8ff	14	* *
kenjiArai	0:d4960fcea8ff	15	* "Using the FreeRTOS Real Time Kernel - a Practical Guide" *
kenjiArai	0:d4960fcea8ff	16	* http://www.FreeRTOS.org/Documentation *
kenjiArai	0:d4960fcea8ff	17	* *
kenjiArai	0:d4960fcea8ff	18	* A pdf reference manual is also available. Both are usually delivered *
kenjiArai	0:d4960fcea8ff	19	* to your inbox within 20 minutes to two hours when purchased between 8am *
kenjiArai	0:d4960fcea8ff	20	* and 8pm GMT (although please allow up to 24 hours in case of *
kenjiArai	0:d4960fcea8ff	21	* exceptional circumstances). Thank you for your support! *
kenjiArai	0:d4960fcea8ff	22	* *
kenjiArai	0:d4960fcea8ff	23	***************************************************************************
kenjiArai	0:d4960fcea8ff	24
kenjiArai	0:d4960fcea8ff	25	This file is part of the FreeRTOS distribution.
kenjiArai	0:d4960fcea8ff	26
kenjiArai	0:d4960fcea8ff	27	FreeRTOS is free software; you can redistribute it and/or modify it under
kenjiArai	0:d4960fcea8ff	28	the terms of the GNU General Public License (version 2) as published by the
kenjiArai	0:d4960fcea8ff	29	Free Software Foundation AND MODIFIED BY the FreeRTOS exception.
kenjiArai	0:d4960fcea8ff	30	*NOTE* The exception to the GPL is included to allow you to distribute
kenjiArai	0:d4960fcea8ff	31	a combined work that includes FreeRTOS without being obliged to provide the
kenjiArai	0:d4960fcea8ff	32	source code for proprietary components outside of the FreeRTOS kernel.
kenjiArai	0:d4960fcea8ff	33	FreeRTOS is distributed in the hope that it will be useful, but WITHOUT
kenjiArai	0:d4960fcea8ff	34	ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
kenjiArai	0:d4960fcea8ff	35	FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
kenjiArai	0:d4960fcea8ff	36	more details. You should have received a copy of the GNU General Public
kenjiArai	0:d4960fcea8ff	37	License and the FreeRTOS license exception along with FreeRTOS; if not it
kenjiArai	0:d4960fcea8ff	38	can be viewed here: http://www.freertos.org/a00114.html and also obtained
kenjiArai	0:d4960fcea8ff	39	by writing to Richard Barry, contact details for whom are available on the
kenjiArai	0:d4960fcea8ff	40	FreeRTOS WEB site.
kenjiArai	0:d4960fcea8ff	41
kenjiArai	0:d4960fcea8ff	42	1 tab == 4 spaces!
kenjiArai	0:d4960fcea8ff	43
kenjiArai	0:d4960fcea8ff	44	http://www.FreeRTOS.org - Documentation, latest information, license and
kenjiArai	0:d4960fcea8ff	45	contact details.
kenjiArai	0:d4960fcea8ff	46
kenjiArai	0:d4960fcea8ff	47	http://www.SafeRTOS.com - A version that is certified for use in safety
kenjiArai	0:d4960fcea8ff	48	critical systems.
kenjiArai	0:d4960fcea8ff	49
kenjiArai	0:d4960fcea8ff	50	http://www.OpenRTOS.com - Commercial support, development, porting,
kenjiArai	0:d4960fcea8ff	51	licensing and training services.
kenjiArai	0:d4960fcea8ff	52	*/
kenjiArai	0:d4960fcea8ff	53
kenjiArai	0:d4960fcea8ff	54	/**
kenjiArai	0:d4960fcea8ff	55	* This version of flash .c is for use on systems that have limited stack space
kenjiArai	0:d4960fcea8ff	56	* and no display facilities. The complete version can be found in the
kenjiArai	0:d4960fcea8ff	57	* Demo/Common/Full directory.
kenjiArai	0:d4960fcea8ff	58	*
kenjiArai	0:d4960fcea8ff	59	* Three tasks are created, each of which flash an LED at a different rate. The first
kenjiArai	0:d4960fcea8ff	60	* LED flashes every 200ms, the second every 400ms, the third every 600ms.
kenjiArai	0:d4960fcea8ff	61	*
kenjiArai	0:d4960fcea8ff	62	* The LED flash tasks provide instant visual feedback. They show that the scheduler
kenjiArai	0:d4960fcea8ff	63	* is still operational.
kenjiArai	0:d4960fcea8ff	64	*
kenjiArai	0:d4960fcea8ff	65	*/
kenjiArai	0:d4960fcea8ff	66
kenjiArai	0:d4960fcea8ff	67
kenjiArai	0:d4960fcea8ff	68	#include <stdlib.h>
kenjiArai	0:d4960fcea8ff	69
kenjiArai	0:d4960fcea8ff	70	/* Scheduler include files. */
kenjiArai	0:d4960fcea8ff	71	#include "FreeRTOS.h"
kenjiArai	0:d4960fcea8ff	72	#include "task.h"
kenjiArai	0:d4960fcea8ff	73
kenjiArai	0:d4960fcea8ff	74	/* Demo program include files. */
kenjiArai	0:d4960fcea8ff	75	#include "partest.h"
kenjiArai	0:d4960fcea8ff	76	#include "flash.h"
kenjiArai	0:d4960fcea8ff	77
kenjiArai	0:d4960fcea8ff	78	#define ledSTACK_SIZE configMINIMAL_STACK_SIZE
kenjiArai	0:d4960fcea8ff	79	#define ledNUMBER_OF_LEDS ( 3 )
kenjiArai	0:d4960fcea8ff	80	#define ledFLASH_RATE_BASE ( ( portTickType ) 333 )
kenjiArai	0:d4960fcea8ff	81
kenjiArai	0:d4960fcea8ff	82	/* Variable used by the created tasks to calculate the LED number to use, and
kenjiArai	0:d4960fcea8ff	83	the rate at which they should flash the LED. */
kenjiArai	0:d4960fcea8ff	84	static volatile unsigned portBASE_TYPE uxFlashTaskNumber = 0;
kenjiArai	0:d4960fcea8ff	85
kenjiArai	0:d4960fcea8ff	86	/* The task that is created three times. */
kenjiArai	0:d4960fcea8ff	87	static portTASK_FUNCTION_PROTO( vLEDFlashTask, pvParameters );
kenjiArai	0:d4960fcea8ff	88
kenjiArai	0:d4960fcea8ff	89	/-----------------------------------------------------------/
kenjiArai	0:d4960fcea8ff	90
kenjiArai	0:d4960fcea8ff	91	void vStartLEDFlashTasks( unsigned portBASE_TYPE uxPriority )
kenjiArai	0:d4960fcea8ff	92	{
kenjiArai	0:d4960fcea8ff	93	signed portBASE_TYPE xLEDTask;
kenjiArai	0:d4960fcea8ff	94
kenjiArai	0:d4960fcea8ff	95	/* Create the three tasks. */
kenjiArai	0:d4960fcea8ff	96	for( xLEDTask = 0; xLEDTask < ledNUMBER_OF_LEDS; ++xLEDTask )
kenjiArai	0:d4960fcea8ff	97	{
kenjiArai	0:d4960fcea8ff	98	/* Spawn the task. */
kenjiArai	0:d4960fcea8ff	99	xTaskCreate( vLEDFlashTask, ( signed char * ) "LEDx", ledSTACK_SIZE, NULL, uxPriority, ( xTaskHandle * ) NULL );
kenjiArai	0:d4960fcea8ff	100	}
kenjiArai	0:d4960fcea8ff	101	}
kenjiArai	0:d4960fcea8ff	102	/-----------------------------------------------------------/
kenjiArai	0:d4960fcea8ff	103
kenjiArai	0:d4960fcea8ff	104	static portTASK_FUNCTION( vLEDFlashTask, pvParameters )
kenjiArai	0:d4960fcea8ff	105	{
kenjiArai	0:d4960fcea8ff	106	portTickType xFlashRate, xLastFlashTime;
kenjiArai	0:d4960fcea8ff	107	unsigned portBASE_TYPE uxLED;
kenjiArai	0:d4960fcea8ff	108
kenjiArai	0:d4960fcea8ff	109	/* The parameters are not used. */
kenjiArai	0:d4960fcea8ff	110	( void ) pvParameters;
kenjiArai	0:d4960fcea8ff	111
kenjiArai	0:d4960fcea8ff	112	/* Calculate the LED and flash rate. */
kenjiArai	0:d4960fcea8ff	113	portENTER_CRITICAL();
kenjiArai	0:d4960fcea8ff	114	{
kenjiArai	0:d4960fcea8ff	115	/* See which of the eight LED's we should use. */
kenjiArai	0:d4960fcea8ff	116	uxLED = uxFlashTaskNumber;
kenjiArai	0:d4960fcea8ff	117
kenjiArai	0:d4960fcea8ff	118	/* Update so the next task uses the next LED. */
kenjiArai	0:d4960fcea8ff	119	uxFlashTaskNumber++;
kenjiArai	0:d4960fcea8ff	120	}
kenjiArai	0:d4960fcea8ff	121	portEXIT_CRITICAL();
kenjiArai	0:d4960fcea8ff	122
kenjiArai	0:d4960fcea8ff	123	xFlashRate = ledFLASH_RATE_BASE + ( ledFLASH_RATE_BASE * ( portTickType ) uxLED );
kenjiArai	0:d4960fcea8ff	124	xFlashRate /= portTICK_RATE_MS;
kenjiArai	0:d4960fcea8ff	125
kenjiArai	0:d4960fcea8ff	126	/* We will turn the LED on and off again in the delay period, so each
kenjiArai	0:d4960fcea8ff	127	delay is only half the total period. */
kenjiArai	0:d4960fcea8ff	128	xFlashRate /= ( portTickType ) 2;
kenjiArai	0:d4960fcea8ff	129
kenjiArai	0:d4960fcea8ff	130	/* We need to initialise xLastFlashTime prior to the first call to
kenjiArai	0:d4960fcea8ff	131	vTaskDelayUntil(). */
kenjiArai	0:d4960fcea8ff	132	xLastFlashTime = xTaskGetTickCount();
kenjiArai	0:d4960fcea8ff	133
kenjiArai	0:d4960fcea8ff	134	for(;;)
kenjiArai	0:d4960fcea8ff	135	{
kenjiArai	0:d4960fcea8ff	136	/* Delay for half the flash period then turn the LED on. */
kenjiArai	0:d4960fcea8ff	137	vTaskDelayUntil( &xLastFlashTime, xFlashRate );
kenjiArai	0:d4960fcea8ff	138	vParTestToggleLED( uxLED );
kenjiArai	0:d4960fcea8ff	139
kenjiArai	0:d4960fcea8ff	140	/* Delay for half the flash period then turn the LED off. */
kenjiArai	0:d4960fcea8ff	141	vTaskDelayUntil( &xLastFlashTime, xFlashRate );
kenjiArai	0:d4960fcea8ff	142	vParTestToggleLED( uxLED );
kenjiArai	0:d4960fcea8ff	143	}
kenjiArai	0:d4960fcea8ff	144	} /lint !e715 !e818 !e830 Function definition must be standard for task creation. /
kenjiArai	0:d4960fcea8ff	145

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Type:	Program
Created:	01 Jan 2011
Imports:	289
Forks:	1
Commits:	1
Dependents:	0
Dependencies:	0
Followers:	14

FreeRTOS/Common/Minimal/flash.c@0:d4960fcea8ff, 2011-01-01 (annotated)

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