2 FreeRTOS V8.1.2 - Copyright (C) 2014 Real Time Engineers Ltd.
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5 VISIT http://www.FreeRTOS.org TO ENSURE YOU ARE USING THE LATEST VERSION.
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7 ***************************************************************************
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9 * FreeRTOS provides completely free yet professionally developed, *
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10 * robust, strictly quality controlled, supported, and cross *
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11 * platform software that has become a de facto standard. *
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13 * Help yourself get started quickly and support the FreeRTOS *
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14 * project by purchasing a FreeRTOS tutorial book, reference *
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15 * manual, or both from: http://www.FreeRTOS.org/Documentation *
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19 ***************************************************************************
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21 This file is part of the FreeRTOS distribution.
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23 FreeRTOS is free software; you can redistribute it and/or modify it under
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24 the terms of the GNU General Public License (version 2) as published by the
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25 Free Software Foundation >>!AND MODIFIED BY!<< the FreeRTOS exception.
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27 >>! NOTE: The modification to the GPL is included to allow you to !<<
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28 >>! distribute a combined work that includes FreeRTOS without being !<<
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29 >>! obliged to provide the source code for proprietary components !<<
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30 >>! outside of the FreeRTOS kernel. !<<
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32 FreeRTOS is distributed in the hope that it will be useful, but WITHOUT ANY
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33 WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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34 FOR A PARTICULAR PURPOSE. Full license text is available from the following
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35 link: http://www.freertos.org/a00114.html
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39 ***************************************************************************
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41 * Having a problem? Start by reading the FAQ "My application does *
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42 * not run, what could be wrong?" *
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44 * http://www.FreeRTOS.org/FAQHelp.html *
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46 ***************************************************************************
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48 http://www.FreeRTOS.org - Documentation, books, training, latest versions,
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49 license and Real Time Engineers Ltd. contact details.
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51 http://www.FreeRTOS.org/plus - A selection of FreeRTOS ecosystem products,
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52 including FreeRTOS+Trace - an indispensable productivity tool, a DOS
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53 compatible FAT file system, and our tiny thread aware UDP/IP stack.
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55 http://www.OpenRTOS.com - Real Time Engineers ltd license FreeRTOS to High
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56 Integrity Systems to sell under the OpenRTOS brand. Low cost OpenRTOS
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57 licenses offer ticketed support, indemnification and middleware.
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59 http://www.SafeRTOS.com - High Integrity Systems also provide a safety
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60 engineered and independently SIL3 certified version for use in safety and
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61 mission critical applications that require provable dependability.
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66 /* Environment includes. */
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67 #include <targets/LPC2368.h>
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69 /* Scheduler includes. */
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70 #include "FreeRTOS.h"
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75 /* Demo app includes. */
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78 #include "integer.h"
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79 #include "blocktim.h"
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80 #include "portlcd.h"
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82 #include "partest.h"
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83 #include "semtest.h"
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86 /* Demo application definitions. */
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87 #define mainQUEUE_SIZE ( 3 )
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88 #define mainCHECK_DELAY ( ( TickType_t ) 5000 / portTICK_PERIOD_MS )
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89 #define mainBASIC_WEB_STACK_SIZE ( configMINIMAL_STACK_SIZE * 2 )
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91 /* Task priorities. */
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92 #define mainQUEUE_POLL_PRIORITY ( tskIDLE_PRIORITY + 2 )
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93 #define mainCHECK_TASK_PRIORITY ( tskIDLE_PRIORITY + 3 )
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94 #define mainSEM_TEST_PRIORITY ( tskIDLE_PRIORITY + 1 )
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95 #define mainBLOCK_Q_PRIORITY ( tskIDLE_PRIORITY + 2 )
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96 #define mainFLASH_PRIORITY ( tskIDLE_PRIORITY + 2 )
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97 #define mainCREATOR_TASK_PRIORITY ( tskIDLE_PRIORITY + 3 )
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98 #define mainINTEGER_TASK_PRIORITY ( tskIDLE_PRIORITY )
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102 * Checks the status of all the demo tasks then prints a message to the
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103 * CrossStudio terminal IO windows. The message will be either PASS or FAIL
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104 * depending on the status of the demo applications tasks. A FAIL status will
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107 * Messages are not written directly to the terminal, but passed to vPrintTask
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110 static void vCheckTask( void *pvParameters );
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113 * The task that handles the uIP stack. All TCP/IP processing is performed in
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116 extern void vuIP_Task( void *pvParameters );
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119 * The LCD is written two by more than one task so is controlled by a
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120 * 'gatekeeper' task. This is the only task that is actually permitted to
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121 * access the LCD directly. Other tasks wanting to display a message send
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122 * the message to the gatekeeper.
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124 static void vLCDTask( void *pvParameters );
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126 /* The queue used to send messages to the LCD task. */
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127 QueueHandle_t xLCDQueue;
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129 /*-----------------------------------------------------------*/
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133 /* Setup the led's on the MCB2300 board */
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134 vParTestInitialise();
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136 /* Create the queue used by the LCD task. Messages for display on the LCD
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137 are received via this queue. */
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138 xLCDQueue = xQueueCreate( mainQUEUE_SIZE, sizeof( xLCDMessage ) );
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140 /* Create the lwIP task. This uses the lwIP RTOS abstraction layer.*/
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141 xTaskCreate( vuIP_Task, "uIP", mainBASIC_WEB_STACK_SIZE, NULL, mainCHECK_TASK_PRIORITY - 1, NULL );
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143 /* Start the standard demo tasks - these serve no useful purpose other than
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144 to demonstrate the FreeRTOS API being used and to test the port. */
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145 vStartBlockingQueueTasks( mainBLOCK_Q_PRIORITY );
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146 vCreateBlockTimeTasks();
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147 vStartLEDFlashTasks( mainFLASH_PRIORITY );
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148 vStartSemaphoreTasks( mainSEM_TEST_PRIORITY );
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149 vStartPolledQueueTasks( mainQUEUE_POLL_PRIORITY );
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150 vStartIntegerMathTasks( mainINTEGER_TASK_PRIORITY );
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152 /* Start the tasks defined within this file/specific to this demo. */
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153 xTaskCreate( vCheckTask, "Check", configMINIMAL_STACK_SIZE, NULL, mainCHECK_TASK_PRIORITY, NULL );
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154 xTaskCreate( vLCDTask, "LCD", configMINIMAL_STACK_SIZE, NULL, mainCHECK_TASK_PRIORITY - 1, NULL );
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156 /* The suicide tasks must be created last as they need to know how many
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157 tasks were running prior to their creation in order to ascertain whether
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158 or not the correct/expected number of tasks are running at any given time. */
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159 vCreateSuicidalTasks( mainCREATOR_TASK_PRIORITY );
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161 /* Start the scheduler. */
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162 vTaskStartScheduler();
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164 /* Will only get here if there was insufficient memory to create the idle
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168 /*-----------------------------------------------------------*/
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170 static void vCheckTask( void *pvParameters )
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172 portBASE_TYPE xErrorOccurred = pdFALSE;
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173 TickType_t xLastExecutionTime;
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174 unsigned portBASE_TYPE uxColumn = 0;
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175 xLCDMessage xMessage;
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177 xLastExecutionTime = xTaskGetTickCount();
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179 xMessage.xColumn = 0;
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180 xMessage.pcMessage = "PASS";
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184 /* Perform this check every mainCHECK_DELAY milliseconds. */
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185 vTaskDelayUntil( &xLastExecutionTime, mainCHECK_DELAY );
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187 /* Has an error been found in any task? */
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189 if( xAreBlockingQueuesStillRunning() != pdTRUE )
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191 xErrorOccurred = pdTRUE;
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194 if( xAreBlockTimeTestTasksStillRunning() != pdTRUE )
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196 xErrorOccurred = pdTRUE;
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199 if( xAreSemaphoreTasksStillRunning() != pdTRUE )
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201 xErrorOccurred = pdTRUE;
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204 if( xArePollingQueuesStillRunning() != pdTRUE )
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206 xErrorOccurred = pdTRUE;
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209 if( xIsCreateTaskStillRunning() != pdTRUE )
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211 xErrorOccurred = pdTRUE;
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214 if( xAreIntegerMathsTaskStillRunning() != pdTRUE )
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216 xErrorOccurred = pdTRUE;
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220 xMessage.xColumn++;
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221 LCD_gotoxy( ( uxColumn & 0x07 ) + 1, ( uxColumn & 0x01 ) + 1 );
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223 if( xErrorOccurred == pdTRUE )
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225 xMessage.pcMessage = "FAIL";
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228 /* Send the message to the LCD gatekeeper for display. */
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229 xQueueSend( xLCDQueue, &xMessage, portMAX_DELAY );
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232 /*-----------------------------------------------------------*/
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234 void vLCDTask( void *pvParameters )
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236 xLCDMessage xMessage;
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238 /* Initialise the LCD and display a startup message. */
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242 LCD_gotoxy( 1, 1 );
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243 LCD_puts( ( signed char * ) "www.FreeRTOS.org" );
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247 /* Wait for a message to arrive that requires displaying. */
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248 while( xQueueReceive( xLCDQueue, &xMessage, portMAX_DELAY ) != pdPASS );
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250 /* Display the message. Print each message to a different position. */
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252 LCD_gotoxy( ( xMessage.xColumn & 0x07 ) + 1, ( xMessage.xColumn & 0x01 ) + 1 );
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253 LCD_puts( xMessage.pcMessage );
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257 /*-----------------------------------------------------------*/
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259 /* Keep the compiler quiet. */
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261 int __putchar( int c )
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