2 FreeRTOS V7.5.1 - Copyright (C) 2013 Real Time Engineers Ltd.
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4 VISIT http://www.FreeRTOS.org TO ENSURE YOU ARE USING THE LATEST VERSION.
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6 ***************************************************************************
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8 * FreeRTOS provides completely free yet professionally developed, *
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9 * robust, strictly quality controlled, supported, and cross *
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10 * platform software that has become a de facto standard. *
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12 * Help yourself get started quickly and support the FreeRTOS *
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13 * project by purchasing a FreeRTOS tutorial book, reference *
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14 * manual, or both from: http://www.FreeRTOS.org/Documentation *
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18 ***************************************************************************
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20 This file is part of the FreeRTOS distribution.
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22 FreeRTOS is free software; you can redistribute it and/or modify it under
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23 the terms of the GNU General Public License (version 2) as published by the
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24 Free Software Foundation >>!AND MODIFIED BY!<< the FreeRTOS exception.
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26 >>! NOTE: The modification to the GPL is included to allow you to distribute
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27 >>! a combined work that includes FreeRTOS without being obliged to provide
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28 >>! the source code for proprietary components outside of the FreeRTOS
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31 FreeRTOS is distributed in the hope that it will be useful, but WITHOUT ANY
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32 WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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33 FOR A PARTICULAR PURPOSE. Full license text is available from the following
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34 link: http://www.freertos.org/a00114.html
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38 ***************************************************************************
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40 * Having a problem? Start by reading the FAQ "My application does *
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41 * not run, what could be wrong?" *
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43 * http://www.FreeRTOS.org/FAQHelp.html *
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45 ***************************************************************************
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47 http://www.FreeRTOS.org - Documentation, books, training, latest versions,
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48 license and Real Time Engineers Ltd. contact details.
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50 http://www.FreeRTOS.org/plus - A selection of FreeRTOS ecosystem products,
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51 including FreeRTOS+Trace - an indispensable productivity tool, a DOS
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52 compatible FAT file system, and our tiny thread aware UDP/IP stack.
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54 http://www.OpenRTOS.com - Real Time Engineers ltd license FreeRTOS to High
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55 Integrity Systems to sell under the OpenRTOS brand. Low cost OpenRTOS
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56 licenses offer ticketed support, indemnification and middleware.
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58 http://www.SafeRTOS.com - High Integrity Systems also provide a safety
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59 engineered and independently SIL3 certified version for use in safety and
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60 mission critical applications that require provable dependability.
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65 /* Environment includes. */
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66 #include <targets/LPC2368.h>
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68 /* Scheduler includes. */
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69 #include "FreeRTOS.h"
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74 /* Demo app includes. */
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77 #include "integer.h"
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78 #include "blocktim.h"
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79 #include "portlcd.h"
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81 #include "partest.h"
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82 #include "semtest.h"
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85 /* Demo application definitions. */
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86 #define mainQUEUE_SIZE ( 3 )
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87 #define mainCHECK_DELAY ( ( portTickType ) 5000 / portTICK_RATE_MS )
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88 #define mainBASIC_WEB_STACK_SIZE ( configMINIMAL_STACK_SIZE * 2 )
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90 /* Task priorities. */
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91 #define mainQUEUE_POLL_PRIORITY ( tskIDLE_PRIORITY + 2 )
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92 #define mainCHECK_TASK_PRIORITY ( tskIDLE_PRIORITY + 3 )
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93 #define mainSEM_TEST_PRIORITY ( tskIDLE_PRIORITY + 1 )
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94 #define mainBLOCK_Q_PRIORITY ( tskIDLE_PRIORITY + 2 )
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95 #define mainFLASH_PRIORITY ( tskIDLE_PRIORITY + 2 )
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96 #define mainCREATOR_TASK_PRIORITY ( tskIDLE_PRIORITY + 3 )
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97 #define mainINTEGER_TASK_PRIORITY ( tskIDLE_PRIORITY )
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101 * Checks the status of all the demo tasks then prints a message to the
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102 * CrossStudio terminal IO windows. The message will be either PASS or FAIL
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103 * depending on the status of the demo applications tasks. A FAIL status will
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106 * Messages are not written directly to the terminal, but passed to vPrintTask
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109 static void vCheckTask( void *pvParameters );
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112 * The task that handles the uIP stack. All TCP/IP processing is performed in
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115 extern void vuIP_Task( void *pvParameters );
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118 * The LCD is written two by more than one task so is controlled by a
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119 * 'gatekeeper' task. This is the only task that is actually permitted to
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120 * access the LCD directly. Other tasks wanting to display a message send
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121 * the message to the gatekeeper.
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123 static void vLCDTask( void *pvParameters );
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125 /* The queue used to send messages to the LCD task. */
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126 xQueueHandle xLCDQueue;
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128 /*-----------------------------------------------------------*/
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132 /* Setup the led's on the MCB2300 board */
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133 vParTestInitialise();
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135 /* Create the queue used by the LCD task. Messages for display on the LCD
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136 are received via this queue. */
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137 xLCDQueue = xQueueCreate( mainQUEUE_SIZE, sizeof( xLCDMessage ) );
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139 /* Create the lwIP task. This uses the lwIP RTOS abstraction layer.*/
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140 xTaskCreate( vuIP_Task, ( signed char * ) "uIP", mainBASIC_WEB_STACK_SIZE, NULL, mainCHECK_TASK_PRIORITY - 1, NULL );
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142 /* Start the standard demo tasks - these serve no useful purpose other than
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143 to demonstrate the FreeRTOS API being used and to test the port. */
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144 vStartBlockingQueueTasks( mainBLOCK_Q_PRIORITY );
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145 vCreateBlockTimeTasks();
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146 vStartLEDFlashTasks( mainFLASH_PRIORITY );
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147 vStartSemaphoreTasks( mainSEM_TEST_PRIORITY );
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148 vStartPolledQueueTasks( mainQUEUE_POLL_PRIORITY );
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149 vStartIntegerMathTasks( mainINTEGER_TASK_PRIORITY );
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151 /* Start the tasks defined within this file/specific to this demo. */
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152 xTaskCreate( vCheckTask, ( signed char * ) "Check", configMINIMAL_STACK_SIZE, NULL, mainCHECK_TASK_PRIORITY, NULL );
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153 xTaskCreate( vLCDTask, ( signed char * ) "LCD", configMINIMAL_STACK_SIZE, NULL, mainCHECK_TASK_PRIORITY - 1, NULL );
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155 /* The suicide tasks must be created last as they need to know how many
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156 tasks were running prior to their creation in order to ascertain whether
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157 or not the correct/expected number of tasks are running at any given time. */
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158 vCreateSuicidalTasks( mainCREATOR_TASK_PRIORITY );
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160 /* Start the scheduler. */
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161 vTaskStartScheduler();
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163 /* Will only get here if there was insufficient memory to create the idle
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167 /*-----------------------------------------------------------*/
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169 static void vCheckTask( void *pvParameters )
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171 portBASE_TYPE xErrorOccurred = pdFALSE;
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172 portTickType xLastExecutionTime;
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173 unsigned portBASE_TYPE uxColumn = 0;
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174 xLCDMessage xMessage;
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176 xLastExecutionTime = xTaskGetTickCount();
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178 xMessage.xColumn = 0;
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179 xMessage.pcMessage = "PASS";
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183 /* Perform this check every mainCHECK_DELAY milliseconds. */
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184 vTaskDelayUntil( &xLastExecutionTime, mainCHECK_DELAY );
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186 /* Has an error been found in any task? */
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188 if( xAreBlockingQueuesStillRunning() != pdTRUE )
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190 xErrorOccurred = pdTRUE;
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193 if( xAreBlockTimeTestTasksStillRunning() != pdTRUE )
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195 xErrorOccurred = pdTRUE;
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198 if( xAreSemaphoreTasksStillRunning() != pdTRUE )
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200 xErrorOccurred = pdTRUE;
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203 if( xArePollingQueuesStillRunning() != pdTRUE )
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205 xErrorOccurred = pdTRUE;
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208 if( xIsCreateTaskStillRunning() != pdTRUE )
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210 xErrorOccurred = pdTRUE;
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213 if( xAreIntegerMathsTaskStillRunning() != pdTRUE )
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215 xErrorOccurred = pdTRUE;
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219 xMessage.xColumn++;
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220 LCD_gotoxy( ( uxColumn & 0x07 ) + 1, ( uxColumn & 0x01 ) + 1 );
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222 if( xErrorOccurred == pdTRUE )
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224 xMessage.pcMessage = "FAIL";
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227 /* Send the message to the LCD gatekeeper for display. */
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228 xQueueSend( xLCDQueue, &xMessage, portMAX_DELAY );
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231 /*-----------------------------------------------------------*/
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233 void vLCDTask( void *pvParameters )
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235 xLCDMessage xMessage;
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237 /* Initialise the LCD and display a startup message. */
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241 LCD_gotoxy( 1, 1 );
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242 LCD_puts( ( signed char * ) "www.FreeRTOS.org" );
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246 /* Wait for a message to arrive that requires displaying. */
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247 while( xQueueReceive( xLCDQueue, &xMessage, portMAX_DELAY ) != pdPASS );
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249 /* Display the message. Print each message to a different position. */
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251 LCD_gotoxy( ( xMessage.xColumn & 0x07 ) + 1, ( xMessage.xColumn & 0x01 ) + 1 );
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252 LCD_puts( xMessage.pcMessage );
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256 /*-----------------------------------------------------------*/
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258 /* Keep the compiler quiet. */
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260 int __putchar( int c )
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