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Add FreeRTOS-Plus directory.

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Richard Barry 2012-08-11 21:34:11 +00:00
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FreeRTOS/Demo/ARM7_LPC2368_Rowley/main.c Normal file
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/*
FreeRTOS V7.1.1 - Copyright (C) 2012 Real Time Engineers Ltd.
***************************************************************************
* *
* 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 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!
***************************************************************************
* *
* 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, training, latest information,
license and contact details.
http://www.FreeRTOS.org/plus - A selection of FreeRTOS ecosystem products,
including FreeRTOS+Trace - an indispensable productivity tool.
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.OpenRTOS.com. High Integrity Systems also
provide a safety engineered and independently SIL3 certified version under
the SafeRTOS brand: http://www.SafeRTOS.com.
*/
/* Environment includes. */
#include <targets/LPC2368.h>
/* Scheduler includes. */
#include "FreeRTOS.h"
#include "task.h"
#include "queue.h"
#include "semphr.h"
/* Demo app includes. */
#include "BlockQ.h"
#include "death.h"
#include "integer.h"
#include "blocktim.h"
#include "portlcd.h"
#include "flash.h"
#include "partest.h"
#include "semtest.h"
#include "PollQ.h"
/* Demo application definitions. */
#define mainQUEUE_SIZE ( 3 )
#define mainCHECK_DELAY ( ( portTickType ) 5000 / portTICK_RATE_MS )
#define mainBASIC_WEB_STACK_SIZE ( configMINIMAL_STACK_SIZE * 2 )
/* 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 mainFLASH_PRIORITY ( tskIDLE_PRIORITY + 2 )
#define mainCREATOR_TASK_PRIORITY ( tskIDLE_PRIORITY + 3 )
#define mainINTEGER_TASK_PRIORITY ( tskIDLE_PRIORITY )
/*
* Checks the status of all the demo tasks then prints a message to the
* CrossStudio terminal IO windows. The message will be either PASS or FAIL
* depending on the status of the demo applications tasks. A FAIL status will
* be latched.
*
* Messages are not written directly to the terminal, but passed to vPrintTask
* via a queue.
*/
static void vCheckTask( void *pvParameters );
/*
* The task that handles the uIP stack. All TCP/IP processing is performed in
* this task.
*/
extern void vuIP_Task( void *pvParameters );
/*
* The LCD is written two by more than one task so is controlled by a
* 'gatekeeper' task. This is the only task that is actually permitted to
* access the LCD directly. Other tasks wanting to display a message send
* the message to the gatekeeper.
*/
static void vLCDTask( void *pvParameters );
/* The queue used to send messages to the LCD task. */
xQueueHandle xLCDQueue;
/*-----------------------------------------------------------*/
int main (void)
{
/* Setup the led's on the MCB2300 board */
vParTestInitialise();
/* Create the queue used by the LCD task. Messages for display on the LCD
are received via this queue. */
xLCDQueue = xQueueCreate( mainQUEUE_SIZE, sizeof( xLCDMessage ) );
/* Create the lwIP task. This uses the lwIP RTOS abstraction layer.*/
xTaskCreate( vuIP_Task, ( signed char * ) "uIP", mainBASIC_WEB_STACK_SIZE, NULL, mainCHECK_TASK_PRIORITY - 1, NULL );
/* Start the standard demo tasks - these serve no useful purpose other than
to demonstrate the FreeRTOS API being used and to test the port. */
vStartBlockingQueueTasks( mainBLOCK_Q_PRIORITY );
vCreateBlockTimeTasks();
vStartLEDFlashTasks( mainFLASH_PRIORITY );
vStartSemaphoreTasks( mainSEM_TEST_PRIORITY );
vStartPolledQueueTasks( mainQUEUE_POLL_PRIORITY );
vStartIntegerMathTasks( mainINTEGER_TASK_PRIORITY );
/* Start the tasks defined within this file/specific to this demo. */
xTaskCreate( vCheckTask, ( signed char * ) "Check", configMINIMAL_STACK_SIZE, NULL, mainCHECK_TASK_PRIORITY, NULL );
xTaskCreate( vLCDTask, ( signed char * ) "LCD", configMINIMAL_STACK_SIZE, NULL, mainCHECK_TASK_PRIORITY - 1, NULL );
/* The suicide tasks must be created last as they need to know how many
tasks were running prior to their creation in order to ascertain whether
or not the correct/expected number of tasks are running at any given time. */
vCreateSuicidalTasks( mainCREATOR_TASK_PRIORITY );
/* Start the scheduler. */
vTaskStartScheduler();
/* Will only get here if there was insufficient memory to create the idle
task. */
return 0;
}
/*-----------------------------------------------------------*/
static void vCheckTask( void *pvParameters )
{
portBASE_TYPE xErrorOccurred = pdFALSE;
portTickType xLastExecutionTime;
unsigned portBASE_TYPE uxColumn = 0;
xLCDMessage xMessage;
xLastExecutionTime = xTaskGetTickCount();
xMessage.xColumn = 0;
xMessage.pcMessage = "PASS";
for( ;; )
{
/* Perform this check every mainCHECK_DELAY milliseconds. */
vTaskDelayUntil( &xLastExecutionTime, mainCHECK_DELAY );
/* Has an error been found in any task? */
if( xAreBlockingQueuesStillRunning() != pdTRUE )
{
xErrorOccurred = pdTRUE;
}
if( xAreBlockTimeTestTasksStillRunning() != pdTRUE )
{
xErrorOccurred = pdTRUE;
}
if( xAreSemaphoreTasksStillRunning() != pdTRUE )
{
xErrorOccurred = pdTRUE;
}
if( xArePollingQueuesStillRunning() != pdTRUE )
{
xErrorOccurred = pdTRUE;
}
if( xIsCreateTaskStillRunning() != pdTRUE )
{
xErrorOccurred = pdTRUE;
}
if( xAreIntegerMathsTaskStillRunning() != pdTRUE )
{
xErrorOccurred = pdTRUE;
}
LCD_cls();
xMessage.xColumn++;
LCD_gotoxy( ( uxColumn & 0x07 ) + 1, ( uxColumn & 0x01 ) + 1 );
if( xErrorOccurred == pdTRUE )
{
xMessage.pcMessage = "FAIL";
}
/* Send the message to the LCD gatekeeper for display. */
xQueueSend( xLCDQueue, &xMessage, portMAX_DELAY );
}
}
/*-----------------------------------------------------------*/
void vLCDTask( void *pvParameters )
{
xLCDMessage xMessage;
/* Initialise the LCD and display a startup message. */
LCD_init();
LCD_cur_off();
LCD_cls();
LCD_gotoxy( 1, 1 );
LCD_puts( ( signed char * ) "www.FreeRTOS.org" );
for( ;; )
{
/* Wait for a message to arrive that requires displaying. */
while( xQueueReceive( xLCDQueue, &xMessage, portMAX_DELAY ) != pdPASS );
/* Display the message. Print each message to a different position. */
LCD_cls();
LCD_gotoxy( ( xMessage.xColumn & 0x07 ) + 1, ( xMessage.xColumn & 0x01 ) + 1 );
LCD_puts( xMessage.pcMessage );
}
}
/*-----------------------------------------------------------*/
/* Keep the compiler quiet. */
#include <stdio.h>
int __putchar( int c )
{
return EOF;
}