FreeRTOS/Demo/CORTEX_LPC1768_GCC_RedSuite/src/main.c - third_party/github/FreeRTOS/FreeRTOS-Kernel - Git at Google

 /*
     FreeRTOS V7.4.0 - Copyright (C) 2013 Real Time Engineers Ltd.

     FEATURES AND PORTS ARE ADDED TO FREERTOS ALL THE TIME.  PLEASE VISIT
     http://www.FreeRTOS.org TO ENSURE YOU ARE USING THE LATEST VERSION.

     ***************************************************************************
      *                                                                       *
      *    FreeRTOS tutorial books are available in pdf and paperback.        *
      *    Complete, revised, and edited pdf reference manuals are also       *
      *    available.                                                         *
      *                                                                       *
      *    Purchasing FreeRTOS documentation will not only help you, by       *
      *    ensuring you get running as quickly as possible and with an        *
      *    in-depth knowledge of how to use FreeRTOS, it will also help       *
      *    the FreeRTOS project to continue with its mission of providing     *
      *    professional grade, cross platform, de facto standard solutions    *
      *    for microcontrollers - completely free of charge!                  *
      *                                                                       *
      *    >>> See http://www.FreeRTOS.org/Documentation for details. <<<     *
      *                                                                       *
      *    Thank you for using FreeRTOS, and 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 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.  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 itcan be
     viewed here: http://www.freertos.org/a00114.html and also obtained by
     writing to Real Time Engineers Ltd., contact details for whom are available
     on the FreeRTOS WEB site.

     1 tab == 4 spaces!

     ***************************************************************************
      *                                                                       *
      *    Having a problem?  Start by reading the FAQ "My application does   *
      *    not run, what could be wrong?"                                     *
      *                                                                       *
      *    http://www.FreeRTOS.org/FAQHelp.html                               *
      *                                                                       *
     ***************************************************************************


     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, and our new
     fully thread aware and reentrant UDP/IP stack.

     http://www.OpenRTOS.com - Real Time Engineers ltd license FreeRTOS to High
     Integrity Systems, who sell the code with commercial support,
     indemnification and middleware, under the OpenRTOS brand.

     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.
 */


 /*
  * 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.
  */

 /* Standard includes. */
 #include "stdio.h"

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

 /* Demo app includes. */
 #include "BlockQ.h"
 #include "integer.h"
 #include "blocktim.h"
 #include "flash.h"
 #include "partest.h"
 #include "semtest.h"
 #include "PollQ.h"
 #include "GenQTest.h"
 #include "QPeek.h"
 #include "recmutex.h"

 /* Red Suite includes. */
 #include "lcd_driver.h"
 #include "lcd.h"

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

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

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

 /* 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."

 /* Bit definitions. */
 #define PCONP_PCGPIO    0x00008000
 #define PLLFEED_FEED1   0x000000AA
 #define PLLFEED_FEED2   0x00000055
 /*-----------------------------------------------------------*/

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

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

 /*
  * The task that handles the USB stack.
  */
 extern void vUSBTask( void *pvParameters );

 /*
  * Simply returns the current status message for display on served WEB pages.
  */
 char *pcGetTaskStatusMessage( void );

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

 /* Holds the status message displayed by the WEB server. */
 static char *pcStatusMessage = mainPASS_STATUS_MESSAGE;

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

 int main( void )
 {
 char cIPAddress[ 16 ]; /* Enough space for "xxx.xxx.xxx.xxx\0". */

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

 	/* Start the standard demo tasks.  These are just here to exercise the
 	kernel port and provide examples of how the FreeRTOS API can be used. */
 	vStartBlockingQueueTasks( mainBLOCK_Q_PRIORITY );
     vCreateBlockTimeTasks();
     vStartSemaphoreTasks( mainSEM_TEST_PRIORITY );
     vStartPolledQueueTasks( mainQUEUE_POLL_PRIORITY );
     vStartIntegerMathTasks( mainINTEGER_TASK_PRIORITY );
     vStartGenericQueueTasks( mainGEN_QUEUE_TASK_PRIORITY );
     vStartQueuePeekTasks();
     vStartRecursiveMutexTasks();
 	vStartLEDFlashTasks( mainFLASH_TASK_PRIORITY );

     /* Create the USB task. */
     xTaskCreate( vUSBTask, ( signed char * ) "USB", configMINIMAL_STACK_SIZE, ( void * ) NULL, tskIDLE_PRIORITY, NULL );

 	/* Display the IP address, then create the uIP task.  The WEB server runs
 	in this task. */
 	LCDdriver_initialisation();
 	LCD_PrintString( 5, 10, "FreeRTOS.org", 14, COLOR_GREEN);
 	sprintf( cIPAddress, "%d.%d.%d.%d", configIP_ADDR0, configIP_ADDR1, configIP_ADDR2, configIP_ADDR3 );
 	LCD_PrintString( 5, 30, cIPAddress, 14, COLOR_RED);
     xTaskCreate( vuIP_Task, ( signed char * ) "uIP", mainBASIC_WEB_STACK_SIZE, ( void * ) NULL, mainUIP_TASK_PRIORITY, NULL );

     /* Start the scheduler. */
 	vTaskStartScheduler();

     /* Will only get here if there was insufficient memory to create the idle
     task.  The idle task is created within vTaskStartScheduler(). */
 	for( ;; );
 }
 /*-----------------------------------------------------------*/

 void vApplicationTickHook( void )
 {
 static unsigned long ulTicksSinceLastDisplay = 0;

 	/* Called from every tick interrupt as described in the comments at the top
 	of this file.

 	Have enough ticks passed to make it	time to perform our health status
 	check again? */
 	ulTicksSinceLastDisplay++;
 	if( ulTicksSinceLastDisplay >= mainCHECK_DELAY )
 	{
 		/* Reset the counter so these checks run again in mainCHECK_DELAY
 		ticks time. */
 		ulTicksSinceLastDisplay = 0;

 		/* Has an error been found in any task? */
 		if( xAreGenericQueueTasksStillRunning() != pdTRUE )
 		{
 			pcStatusMessage = "An error has been detected in the Generic Queue test/demo.";
 		}
 		else if( xAreQueuePeekTasksStillRunning() != pdTRUE )
 		{
 			pcStatusMessage = "An error has been detected in the Peek Queue test/demo.";
 		}
 		else if( xAreBlockingQueuesStillRunning() != pdTRUE )
 		{
 			pcStatusMessage = "An error has been detected in the Block Queue test/demo.";
 		}
 		else if( xAreBlockTimeTestTasksStillRunning() != pdTRUE )
 		{
 			pcStatusMessage = "An error has been detected in the Block Time test/demo.";
 		}
 	    else if( xAreSemaphoreTasksStillRunning() != pdTRUE )
 	    {
 	        pcStatusMessage = "An error has been detected in the Semaphore test/demo.";
 	    }
 	    else if( xArePollingQueuesStillRunning() != pdTRUE )
 	    {
 	        pcStatusMessage = "An error has been detected in the Poll Queue test/demo.";
 	    }
 	    else if( xAreIntegerMathsTaskStillRunning() != pdTRUE )
 	    {
 	        pcStatusMessage = "An error has been detected in the Int Math test/demo.";
 	    }
 	    else if( xAreRecursiveMutexTasksStillRunning() != pdTRUE )
 	    {
 	    	pcStatusMessage = "An error has been detected in the Mutex test/demo.";
 	    }
 	}
 }
 /*-----------------------------------------------------------*/

 char *pcGetTaskStatusMessage( void )
 {
 	/* Not bothered about a critical section here. */
 	return pcStatusMessage;
 }
 /*-----------------------------------------------------------*/

 void prvSetupHardware( void )
 {
 	/* Disable peripherals power. */
 	LPC_SC->PCONP = 0;

 	/* Enable GPIO power. */
 	LPC_SC->PCONP = PCONP_PCGPIO;

 	/* Disable TPIU. */
 	LPC_PINCON->PINSEL10 = 0;

 	if ( LPC_SC->PLL0STAT & ( 1 << 25 ) )
 	{
 		/* Enable PLL, disconnected. */
 		LPC_SC->PLL0CON = 1;
 		LPC_SC->PLL0FEED = PLLFEED_FEED1;
 		LPC_SC->PLL0FEED = PLLFEED_FEED2;
 	}

 	/* Disable PLL, disconnected. */
 	LPC_SC->PLL0CON = 0;
 	LPC_SC->PLL0FEED = PLLFEED_FEED1;
 	LPC_SC->PLL0FEED = PLLFEED_FEED2;

 	/* Enable main OSC. */
 	LPC_SC->SCS |= 0x20;
 	while( !( LPC_SC->SCS & 0x40 ) );

 	/* select main OSC, 12MHz, as the PLL clock source. */
 	LPC_SC->CLKSRCSEL = 0x1;

 	LPC_SC->PLL0CFG = 0x20031;
 	LPC_SC->PLL0FEED = PLLFEED_FEED1;
 	LPC_SC->PLL0FEED = PLLFEED_FEED2;

 	/* Enable PLL, disconnected. */
 	LPC_SC->PLL0CON = 1;
 	LPC_SC->PLL0FEED = PLLFEED_FEED1;
 	LPC_SC->PLL0FEED = PLLFEED_FEED2;

 	/* Set clock divider. */
 	LPC_SC->CCLKCFG = 0x03;

 	/* Configure flash accelerator. */
 	LPC_SC->FLASHCFG = 0x403a;

 	/* Check lock bit status. */
 	while( ( ( LPC_SC->PLL0STAT & ( 1 << 26 ) ) == 0 ) );

 	/* Enable and connect. */
 	LPC_SC->PLL0CON = 3;
 	LPC_SC->PLL0FEED = PLLFEED_FEED1;
 	LPC_SC->PLL0FEED = PLLFEED_FEED2;
 	while( ( ( LPC_SC->PLL0STAT & ( 1 << 25 ) ) == 0 ) );


 	/* Configure the clock for the USB. */

 	if( LPC_SC->PLL1STAT & ( 1 << 9 ) )
 	{
 		/* Enable PLL, disconnected. */
 		LPC_SC->PLL1CON = 1;
 		LPC_SC->PLL1FEED = PLLFEED_FEED1;
 		LPC_SC->PLL1FEED = PLLFEED_FEED2;
 	}

 	/* Disable PLL, disconnected. */
 	LPC_SC->PLL1CON = 0;
 	LPC_SC->PLL1FEED = PLLFEED_FEED1;
 	LPC_SC->PLL1FEED = PLLFEED_FEED2;

 	LPC_SC->PLL1CFG = 0x23;
 	LPC_SC->PLL1FEED = PLLFEED_FEED1;
 	LPC_SC->PLL1FEED = PLLFEED_FEED2;

 	/* Enable PLL, disconnected. */
 	LPC_SC->PLL1CON = 1;
 	LPC_SC->PLL1FEED = PLLFEED_FEED1;
 	LPC_SC->PLL1FEED = PLLFEED_FEED2;
 	while( ( ( LPC_SC->PLL1STAT & ( 1 << 10 ) ) == 0 ) );

 	/* Enable and connect. */
 	LPC_SC->PLL1CON = 3;
 	LPC_SC->PLL1FEED = PLLFEED_FEED1;
 	LPC_SC->PLL1FEED = PLLFEED_FEED2;
 	while( ( ( LPC_SC->PLL1STAT & ( 1 << 9 ) ) == 0 ) );

 	/*  Setup the peripheral bus to be the same as the PLL output (64 MHz). */
 	LPC_SC->PCLKSEL0 = 0x05555555;

 	/* Configure the 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( ;; );
 }
 /*-----------------------------------------------------------*/

 void vConfigureTimerForRunTimeStats( void )
 {
 const unsigned long TCR_COUNT_RESET = 2, CTCR_CTM_TIMER = 0x00, TCR_COUNT_ENABLE = 0x01;

 	/* This function configures a timer that is used as the time base when
 	collecting run time statistical information - basically the percentage
 	of CPU time that each task is utilising.  It is called automatically when
 	the scheduler is started (assuming configGENERATE_RUN_TIME_STATS is set
 	to 1). */

 	/* Power up and feed the timer. */
 	LPC_SC->PCONP |= 0x02UL;
 	LPC_SC->PCLKSEL0 = (LPC_SC->PCLKSEL0 & (~(0x3<<2))) | (0x01 << 2);

 	/* Reset Timer 0 */
 	LPC_TIM0->TCR = TCR_COUNT_RESET;

 	/* Just count up. */
 	LPC_TIM0->CTCR = CTCR_CTM_TIMER;

 	/* Prescale to a frequency that is good enough to get a decent resolution,
 	but not too fast so as to overflow all the time. */
 	LPC_TIM0->PR =  ( configCPU_CLOCK_HZ / 10000UL ) - 1UL;

 	/* Start the counter. */
 	LPC_TIM0->TCR = TCR_COUNT_ENABLE;
 }
 /*-----------------------------------------------------------*/
	/*
	FreeRTOS V7.4.0 - Copyright (C) 2013 Real Time Engineers Ltd.

	FEATURES AND PORTS ARE ADDED TO FREERTOS ALL THE TIME. PLEASE VISIT
	http://www.FreeRTOS.org TO ENSURE YOU ARE USING THE LATEST VERSION.

	***************************************************************************
	* *
	* FreeRTOS tutorial books are available in pdf and paperback. *
	* Complete, revised, and edited pdf reference manuals are also *
	* available. *
	* *
	* Purchasing FreeRTOS documentation will not only help you, by *
	* ensuring you get running as quickly as possible and with an *
	* in-depth knowledge of how to use FreeRTOS, it will also help *
	* the FreeRTOS project to continue with its mission of providing *
	* professional grade, cross platform, de facto standard solutions *
	* for microcontrollers - completely free of charge! *
	* *
	* >>> See http://www.FreeRTOS.org/Documentation for details. <<< *
	* *
	* Thank you for using FreeRTOS, and 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 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. 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 itcan be
	viewed here: http://www.freertos.org/a00114.html and also obtained by
	writing to Real Time Engineers Ltd., contact details for whom are available
	on the FreeRTOS WEB site.

	1 tab == 4 spaces!

	***************************************************************************
	* *
	* Having a problem? Start by reading the FAQ "My application does *
	* not run, what could be wrong?" *
	* *
	* http://www.FreeRTOS.org/FAQHelp.html *
	* *
	***************************************************************************


	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, and our new
	fully thread aware and reentrant UDP/IP stack.

	http://www.OpenRTOS.com - Real Time Engineers ltd license FreeRTOS to High
	Integrity Systems, who sell the code with commercial support,
	indemnification and middleware, under the OpenRTOS brand.

	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.
	*/


	/*
	* 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.
	*/

	/* Standard includes. */
	#include "stdio.h"

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

	/* Demo app includes. */
	#include "BlockQ.h"
	#include "integer.h"
	#include "blocktim.h"
	#include "flash.h"
	#include "partest.h"
	#include "semtest.h"
	#include "PollQ.h"
	#include "GenQTest.h"
	#include "QPeek.h"
	#include "recmutex.h"

	/* Red Suite includes. */
	#include "lcd_driver.h"
	#include "lcd.h"

	/-----------------------------------------------------------/

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

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

	/* 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."

	/* Bit definitions. */
	#define PCONP_PCGPIO 0x00008000
	#define PLLFEED_FEED1 0x000000AA
	#define PLLFEED_FEED2 0x00000055
	/-----------------------------------------------------------/

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

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

	/*
	* The task that handles the USB stack.
	*/
	extern void vUSBTask( void *pvParameters );

	/*
	* Simply returns the current status message for display on served WEB pages.
	*/
	char *pcGetTaskStatusMessage( void );

	/-----------------------------------------------------------/

	/* Holds the status message displayed by the WEB server. */
	static char *pcStatusMessage = mainPASS_STATUS_MESSAGE;

	/-----------------------------------------------------------/

	int main( void )
	{
	char cIPAddress[ 16 ]; /* Enough space for "xxx.xxx.xxx.xxx\0". */

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

	/* Start the standard demo tasks. These are just here to exercise the
	kernel port and provide examples of how the FreeRTOS API can be used. */
	vStartBlockingQueueTasks( mainBLOCK_Q_PRIORITY );
	vCreateBlockTimeTasks();
	vStartSemaphoreTasks( mainSEM_TEST_PRIORITY );
	vStartPolledQueueTasks( mainQUEUE_POLL_PRIORITY );
	vStartIntegerMathTasks( mainINTEGER_TASK_PRIORITY );
	vStartGenericQueueTasks( mainGEN_QUEUE_TASK_PRIORITY );
	vStartQueuePeekTasks();
	vStartRecursiveMutexTasks();
	vStartLEDFlashTasks( mainFLASH_TASK_PRIORITY );

	/* Create the USB task. */
	xTaskCreate( vUSBTask, ( signed char * ) "USB", configMINIMAL_STACK_SIZE, ( void * ) NULL, tskIDLE_PRIORITY, NULL );

	/* Display the IP address, then create the uIP task. The WEB server runs
	in this task. */
	LCDdriver_initialisation();
	LCD_PrintString( 5, 10, "FreeRTOS.org", 14, COLOR_GREEN);
	sprintf( cIPAddress, "%d.%d.%d.%d", configIP_ADDR0, configIP_ADDR1, configIP_ADDR2, configIP_ADDR3 );
	LCD_PrintString( 5, 30, cIPAddress, 14, COLOR_RED);
	xTaskCreate( vuIP_Task, ( signed char * ) "uIP", mainBASIC_WEB_STACK_SIZE, ( void * ) NULL, mainUIP_TASK_PRIORITY, NULL );

	/* Start the scheduler. */
	vTaskStartScheduler();

	/* Will only get here if there was insufficient memory to create the idle
	task. The idle task is created within vTaskStartScheduler(). */
	for( ;; );
	}
	/-----------------------------------------------------------/

	void vApplicationTickHook( void )
	{
	static unsigned long ulTicksSinceLastDisplay = 0;

	/* Called from every tick interrupt as described in the comments at the top
	of this file.

	Have enough ticks passed to make it time to perform our health status
	check again? */
	ulTicksSinceLastDisplay++;
	if( ulTicksSinceLastDisplay >= mainCHECK_DELAY )
	{
	/* Reset the counter so these checks run again in mainCHECK_DELAY
	ticks time. */
	ulTicksSinceLastDisplay = 0;

	/* Has an error been found in any task? */
	if( xAreGenericQueueTasksStillRunning() != pdTRUE )
	{
	pcStatusMessage = "An error has been detected in the Generic Queue test/demo.";
	}
	else if( xAreQueuePeekTasksStillRunning() != pdTRUE )
	{
	pcStatusMessage = "An error has been detected in the Peek Queue test/demo.";
	}
	else if( xAreBlockingQueuesStillRunning() != pdTRUE )
	{
	pcStatusMessage = "An error has been detected in the Block Queue test/demo.";
	}
	else if( xAreBlockTimeTestTasksStillRunning() != pdTRUE )
	{
	pcStatusMessage = "An error has been detected in the Block Time test/demo.";
	}
	else if( xAreSemaphoreTasksStillRunning() != pdTRUE )
	{
	pcStatusMessage = "An error has been detected in the Semaphore test/demo.";
	}
	else if( xArePollingQueuesStillRunning() != pdTRUE )
	{
	pcStatusMessage = "An error has been detected in the Poll Queue test/demo.";
	}
	else if( xAreIntegerMathsTaskStillRunning() != pdTRUE )
	{
	pcStatusMessage = "An error has been detected in the Int Math test/demo.";
	}
	else if( xAreRecursiveMutexTasksStillRunning() != pdTRUE )
	{
	pcStatusMessage = "An error has been detected in the Mutex test/demo.";
	}
	}
	}
	/-----------------------------------------------------------/

	char *pcGetTaskStatusMessage( void )
	{
	/* Not bothered about a critical section here. */
	return pcStatusMessage;
	}
	/-----------------------------------------------------------/

	void prvSetupHardware( void )
	{
	/* Disable peripherals power. */
	LPC_SC->PCONP = 0;

	/* Enable GPIO power. */
	LPC_SC->PCONP = PCONP_PCGPIO;

	/* Disable TPIU. */
	LPC_PINCON->PINSEL10 = 0;

	if ( LPC_SC->PLL0STAT & ( 1 << 25 ) )
	{
	/* Enable PLL, disconnected. */
	LPC_SC->PLL0CON = 1;
	LPC_SC->PLL0FEED = PLLFEED_FEED1;
	LPC_SC->PLL0FEED = PLLFEED_FEED2;
	}

	/* Disable PLL, disconnected. */
	LPC_SC->PLL0CON = 0;
	LPC_SC->PLL0FEED = PLLFEED_FEED1;
	LPC_SC->PLL0FEED = PLLFEED_FEED2;

	/* Enable main OSC. */
	LPC_SC->SCS \|= 0x20;
	while( !( LPC_SC->SCS & 0x40 ) );

	/* select main OSC, 12MHz, as the PLL clock source. */
	LPC_SC->CLKSRCSEL = 0x1;

	LPC_SC->PLL0CFG = 0x20031;
	LPC_SC->PLL0FEED = PLLFEED_FEED1;
	LPC_SC->PLL0FEED = PLLFEED_FEED2;

	/* Enable PLL, disconnected. */
	LPC_SC->PLL0CON = 1;
	LPC_SC->PLL0FEED = PLLFEED_FEED1;
	LPC_SC->PLL0FEED = PLLFEED_FEED2;

	/* Set clock divider. */
	LPC_SC->CCLKCFG = 0x03;

	/* Configure flash accelerator. */
	LPC_SC->FLASHCFG = 0x403a;

	/* Check lock bit status. */
	while( ( ( LPC_SC->PLL0STAT & ( 1 << 26 ) ) == 0 ) );

	/* Enable and connect. */
	LPC_SC->PLL0CON = 3;
	LPC_SC->PLL0FEED = PLLFEED_FEED1;
	LPC_SC->PLL0FEED = PLLFEED_FEED2;
	while( ( ( LPC_SC->PLL0STAT & ( 1 << 25 ) ) == 0 ) );




	/* Configure the clock for the USB. */

	if( LPC_SC->PLL1STAT & ( 1 << 9 ) )
	{
	/* Enable PLL, disconnected. */
	LPC_SC->PLL1CON = 1;
	LPC_SC->PLL1FEED = PLLFEED_FEED1;
	LPC_SC->PLL1FEED = PLLFEED_FEED2;
	}

	/* Disable PLL, disconnected. */
	LPC_SC->PLL1CON = 0;
	LPC_SC->PLL1FEED = PLLFEED_FEED1;
	LPC_SC->PLL1FEED = PLLFEED_FEED2;

	LPC_SC->PLL1CFG = 0x23;
	LPC_SC->PLL1FEED = PLLFEED_FEED1;
	LPC_SC->PLL1FEED = PLLFEED_FEED2;

	/* Enable PLL, disconnected. */
	LPC_SC->PLL1CON = 1;
	LPC_SC->PLL1FEED = PLLFEED_FEED1;
	LPC_SC->PLL1FEED = PLLFEED_FEED2;
	while( ( ( LPC_SC->PLL1STAT & ( 1 << 10 ) ) == 0 ) );

	/* Enable and connect. */
	LPC_SC->PLL1CON = 3;
	LPC_SC->PLL1FEED = PLLFEED_FEED1;
	LPC_SC->PLL1FEED = PLLFEED_FEED2;
	while( ( ( LPC_SC->PLL1STAT & ( 1 << 9 ) ) == 0 ) );

	/* Setup the peripheral bus to be the same as the PLL output (64 MHz). */
	LPC_SC->PCLKSEL0 = 0x05555555;

	/* Configure the 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( ;; );
	}
	/-----------------------------------------------------------/

	void vConfigureTimerForRunTimeStats( void )
	{
	const unsigned long TCR_COUNT_RESET = 2, CTCR_CTM_TIMER = 0x00, TCR_COUNT_ENABLE = 0x01;

	/* This function configures a timer that is used as the time base when
	collecting run time statistical information - basically the percentage
	of CPU time that each task is utilising. It is called automatically when
	the scheduler is started (assuming configGENERATE_RUN_TIME_STATS is set
	to 1). */

	/* Power up and feed the timer. */
	LPC_SC->PCONP \|= 0x02UL;
	LPC_SC->PCLKSEL0 = (LPC_SC->PCLKSEL0 & (~(0x3<<2))) \| (0x01 << 2);

	/* Reset Timer 0 */
	LPC_TIM0->TCR = TCR_COUNT_RESET;

	/* Just count up. */
	LPC_TIM0->CTCR = CTCR_CTM_TIMER;

	/* Prescale to a frequency that is good enough to get a decent resolution,
	but not too fast so as to overflow all the time. */
	LPC_TIM0->PR = ( configCPU_CLOCK_HZ / 10000UL ) - 1UL;

	/* Start the counter. */
	LPC_TIM0->TCR = TCR_COUNT_ENABLE;
	}
	/-----------------------------------------------------------/