main.c

freescale k40/k60 freertos-uip 例程

/*
    FreeRTOS V6.0.4 - Copyright (C) 2010 Real Time Engineers Ltd.

    ***************************************************************************
    *                                                                         *
    * If you are:                                                             *
    *                                                                         *
    *    + New to FreeRTOS,                                                   *
    *    + Wanting to learn FreeRTOS or multitasking in general quickly       *
    *    + Looking for basic training,                                        *
    *    + Wanting to improve your FreeRTOS skills and productivity           *
    *                                                                         *
    * then take a look at the FreeRTOS eBook                                  *
    *                                                                         *
    *        "Using the FreeRTOS Real Time Kernel - a Practical Guide"        *
    *                  http://www.FreeRTOS.org/Documentation                  *
    *                                                                         *
    * A pdf reference manual is also available.  Both are usually delivered   *
    * to your inbox within 20 minutes to two hours when purchased between 8am *
    * and 8pm GMT (although please allow up to 24 hours in case of            *
    * exceptional circumstances).  Thank you for your support!                *
    *                                                                         *
    ***************************************************************************

    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 exception 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.  See the GNU General Public License for
    more details. You should have received a copy of the GNU General Public 
    License and the FreeRTOS license exception along with FreeRTOS; if not it 
    can be viewed here: http://www.freertos.org/a00114.html and also obtained 
    by writing to Richard Barry, contact details for whom are available on the
    FreeRTOS WEB site.

    1 tab == 4 spaces!

    http://www.FreeRTOS.org - Documentation, latest information, license and
    contact details.

    http://www.SafeRTOS.com - A version that is certified for use in safety
    critical systems.

    http://www.OpenRTOS.com - Commercial support, development, porting,
    licensing and training services.
*/


/*
 * Creates all the demo application tasks, then starts the scheduler.  The WEB
 * documentation provides more details of the standard demo application tasks
 * (which just exist to test the kernel port and provide an example of how to use
 * each FreeRTOS API function).
 *
 * In addition to the standard demo tasks, the following tasks and tests are
 * defined and/or created within this file:
 *
 * "Check" hook -  This only executes fully every five seconds from the tick
 * hook.  Its main function is to check that all the standard demo tasks are
 * still operational.  The status can be viewed using on the Task Stats page
 * served by the WEB server.
 *
 * "uIP" task -  This is the task that handles the uIP stack.  All TCP/IP
 * processing is performed in this task.
 *
 * "USB" task - Enumerates the USB device as a CDC class, then echoes back all
 * received characters with a configurable offset (for example, if the offset
 * is 1 and 'A' is received then 'B' will be sent back).  A dumb terminal such
 * as Hyperterminal can be used to talk to the USB task.
 */

/* Scheduler includes. */
#include "FreeRTOS.h"
#include "task.h"

#include "common.h"

#include "partest.h"

/*-----------------------------------------------------------*/

/* The time between cycles of the 'check' functionality (defined within the
tick hook). */
#define mainCHECK_DELAY						( ( portTickType ) 5000 / portTICK_RATE_MS )

/* The toggle rate for the LED. */
#define mainLED_TOGGLE_RATE					( ( portTickType ) 1000 / portTICK_RATE_MS )

/* Task priorities. */
#define mainQUEUE_POLL_PRIORITY				( tskIDLE_PRIORITY + 2 )
#define mainCHECK_TASK_PRIORITY				( tskIDLE_PRIORITY + 3 )
#define mainSEM_TEST_PRIORITY				( tskIDLE_PRIORITY + 1 )
#define mainBLOCK_Q_PRIORITY				( tskIDLE_PRIORITY + 2 )
#define mainUIP_TASK_PRIORITY				( tskIDLE_PRIORITY + 3 )
#define mainFLASH_TASK_PRIORITY				( tskIDLE_PRIORITY + 2 )
#define mainINTEGER_TASK_PRIORITY                       ( tskIDLE_PRIORITY )
#define mainGEN_QUEUE_TASK_PRIORITY			( tskIDLE_PRIORITY )

/* The WEB server has a larger stack as it utilises stack hungry string
handling library calls. */
#define mainBASIC_WEB_STACK_SIZE            ( configMINIMAL_STACK_SIZE * 4 )

/* The message displayed by the WEB server when all tasks are executing
without an error being reported. */
#define mainPASS_STATUS_MESSAGE				"All tasks are executing without error."

/*-----------------------------------------------------------*/

/*
 * Configure the hardware for the demo.
 */
static void prvSetupHardware( void );

#if 0
static void prvPrintTask( void *pvParameters );
#endif

/*
 * The task that handles the uIP stack.  All TCP/IP processing is performed in
 * this task.
 */
extern void vuIP_Task( void *pvParameters );

/*-----------------------------------------------------------*/

void main( void )
{
    /* Configure the hardware for use by this demo. */
    prvSetupHardware();

    /* Create the uIP task.  The WEB server runs in this task. */
    xTaskCreate( vuIP_Task, ( signed char * ) "uIP", mainBASIC_WEB_STACK_SIZE, ( void * ) NULL, mainUIP_TASK_PRIORITY, NULL );

    //***xTaskCreate( prvPrintTask, ( signed portCHAR * ) "PRINTF", 300, NULL, mainCHECK_TASK_PRIORITY, NULL );
    
    /* Start the scheduler. */
    vTaskStartScheduler();

    /*small test*/
    printf("Error: insufficient memory\n");    
    
    /* Will only get here if there was insufficient memory to create the idle
    task.  The idle task is created within vTaskStartScheduler(). */
    for( ;; );
}
/*-----------------------------------------------------------*/

#if 0
/*FSL: small test inside the Tower*/
static void prvPrintTask( void *pvParameters )
{
	( void ) pvParameters;
	
	for( ;; )
	{
	    printf("Delay inside Task\n\n");
		
	    /* delay until is called again */
	    vTaskDelay( 2000 );
	}
}
#endif

void vApplicationTickHook( void )
{
  /*toggle a LED to ensure we are working at specified tick freq*/
}

/*-----------------------------------------------------------*/

void prvSetupHardware( void )
{
        /*FSL: start LEDs*/ 
        vParTestInitialise();
}
/*-----------------------------------------------------------*/

void vApplicationStackOverflowHook( xTaskHandle *pxTask, signed char *pcTaskName )
{
	/* This function will get called if a task overflows its stack. */

	( void ) pxTask;
	( void ) pcTaskName;

	for( ;; );
}
/*-----------------------------------------------------------*/