2 FreeRTOS V5.4.2 - Copyright (C) 2009 Real Time Engineers Ltd.
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4 This file is part of the FreeRTOS distribution.
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6 FreeRTOS is free software; you can redistribute it and/or modify it under
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7 the terms of the GNU General Public License (version 2) as published by the
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8 Free Software Foundation and modified by the FreeRTOS exception.
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9 **NOTE** The exception to the GPL is included to allow you to distribute a
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10 combined work that includes FreeRTOS without being obliged to provide the
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11 source code for proprietary components outside of the FreeRTOS kernel.
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12 Alternative commercial license and support terms are also available upon
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13 request. See the licensing section of http://www.FreeRTOS.org for full
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16 FreeRTOS is distributed in the hope that it will be useful, but WITHOUT
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17 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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18 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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21 You should have received a copy of the GNU General Public License along
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22 with FreeRTOS; if not, write to the Free Software Foundation, Inc., 59
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23 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
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26 ***************************************************************************
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28 * Looking for a quick start? Then check out the FreeRTOS eBook! *
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29 * See http://www.FreeRTOS.org/Documentation for details *
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31 ***************************************************************************
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35 Please ensure to read the configuration and relevant port sections of the
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36 online documentation.
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38 http://www.FreeRTOS.org - Documentation, latest information, license and
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41 http://www.SafeRTOS.com - A version that is certified for use in safety
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44 http://www.OpenRTOS.com - Commercial support, development, porting,
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45 licensing and training services.
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48 /* Environment includes. */
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49 #include <targets/LPC2368.h>
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51 /* Scheduler includes. */
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52 #include "FreeRTOS.h"
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57 /* Demo app includes. */
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60 #include "integer.h"
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61 #include "blocktim.h"
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62 #include "portlcd.h"
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64 #include "partest.h"
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65 #include "semtest.h"
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68 /* Demo application definitions. */
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69 #define mainQUEUE_SIZE ( 3 )
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70 #define mainCHECK_DELAY ( ( portTickType ) 5000 / portTICK_RATE_MS )
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71 #define mainBASIC_WEB_STACK_SIZE ( configMINIMAL_STACK_SIZE * 2 )
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73 /* Task priorities. */
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74 #define mainQUEUE_POLL_PRIORITY ( tskIDLE_PRIORITY + 2 )
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75 #define mainCHECK_TASK_PRIORITY ( tskIDLE_PRIORITY + 3 )
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76 #define mainSEM_TEST_PRIORITY ( tskIDLE_PRIORITY + 1 )
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77 #define mainBLOCK_Q_PRIORITY ( tskIDLE_PRIORITY + 2 )
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78 #define mainFLASH_PRIORITY ( tskIDLE_PRIORITY + 2 )
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79 #define mainCREATOR_TASK_PRIORITY ( tskIDLE_PRIORITY + 3 )
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80 #define mainINTEGER_TASK_PRIORITY ( tskIDLE_PRIORITY )
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84 * Checks the status of all the demo tasks then prints a message to the
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85 * CrossStudio terminal IO windows. The message will be either PASS or FAIL
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86 * depending on the status of the demo applications tasks. A FAIL status will
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89 * Messages are not written directly to the terminal, but passed to vPrintTask
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92 static void vCheckTask( void *pvParameters );
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95 * The task that handles the uIP stack. All TCP/IP processing is performed in
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98 extern void vuIP_Task( void *pvParameters );
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101 * The LCD is written two by more than one task so is controlled by a
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102 * 'gatekeeper' task. This is the only task that is actually permitted to
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103 * access the LCD directly. Other tasks wanting to display a message send
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104 * the message to the gatekeeper.
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106 static void vLCDTask( void *pvParameters );
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108 /* The queue used to send messages to the LCD task. */
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109 xQueueHandle xLCDQueue;
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111 /*-----------------------------------------------------------*/
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115 /* Setup the led's on the MCB2300 board */
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116 vParTestInitialise();
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118 /* Create the queue used by the LCD task. Messages for display on the LCD
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119 are received via this queue. */
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120 xLCDQueue = xQueueCreate( mainQUEUE_SIZE, sizeof( xLCDMessage ) );
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122 /* Create the lwIP task. This uses the lwIP RTOS abstraction layer.*/
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123 xTaskCreate( vuIP_Task, ( signed portCHAR * ) "uIP", mainBASIC_WEB_STACK_SIZE, NULL, mainCHECK_TASK_PRIORITY - 1, NULL );
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125 /* Start the standard demo tasks - these serve no useful purpose other than
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126 to demonstrate the FreeRTOS API being used and to test the port. */
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127 vStartBlockingQueueTasks( mainBLOCK_Q_PRIORITY );
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128 vCreateBlockTimeTasks();
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129 vStartLEDFlashTasks( mainFLASH_PRIORITY );
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130 vStartSemaphoreTasks( mainSEM_TEST_PRIORITY );
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131 vStartPolledQueueTasks( mainQUEUE_POLL_PRIORITY );
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132 vStartIntegerMathTasks( mainINTEGER_TASK_PRIORITY );
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134 /* Start the tasks defined within this file/specific to this demo. */
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135 xTaskCreate( vCheckTask, ( signed portCHAR * ) "Check", configMINIMAL_STACK_SIZE, NULL, mainCHECK_TASK_PRIORITY, NULL );
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136 xTaskCreate( vLCDTask, ( signed portCHAR * ) "LCD", configMINIMAL_STACK_SIZE, NULL, mainCHECK_TASK_PRIORITY - 1, NULL );
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138 /* The suicide tasks must be created last as they need to know how many
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139 tasks were running prior to their creation in order to ascertain whether
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140 or not the correct/expected number of tasks are running at any given time. */
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141 vCreateSuicidalTasks( mainCREATOR_TASK_PRIORITY );
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143 /* Start the scheduler. */
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144 vTaskStartScheduler();
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146 /* Will only get here if there was insufficient memory to create the idle
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150 /*-----------------------------------------------------------*/
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152 static void vCheckTask( void *pvParameters )
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154 portBASE_TYPE xErrorOccurred = pdFALSE;
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155 portTickType xLastExecutionTime;
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156 unsigned portBASE_TYPE uxColumn = 0;
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157 xLCDMessage xMessage;
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159 xLastExecutionTime = xTaskGetTickCount();
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161 xMessage.xColumn = 0;
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162 xMessage.pcMessage = "PASS";
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166 /* Perform this check every mainCHECK_DELAY milliseconds. */
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167 vTaskDelayUntil( &xLastExecutionTime, mainCHECK_DELAY );
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169 /* Has an error been found in any task? */
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171 if( xAreBlockingQueuesStillRunning() != pdTRUE )
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173 xErrorOccurred = pdTRUE;
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176 if( xAreBlockTimeTestTasksStillRunning() != pdTRUE )
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178 xErrorOccurred = pdTRUE;
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181 if( xAreSemaphoreTasksStillRunning() != pdTRUE )
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183 xErrorOccurred = pdTRUE;
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186 if( xArePollingQueuesStillRunning() != pdTRUE )
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188 xErrorOccurred = pdTRUE;
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191 if( xIsCreateTaskStillRunning() != pdTRUE )
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193 xErrorOccurred = pdTRUE;
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196 if( xAreIntegerMathsTaskStillRunning() != pdTRUE )
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198 xErrorOccurred = pdTRUE;
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202 xMessage.xColumn++;
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203 LCD_gotoxy( ( uxColumn & 0x07 ) + 1, ( uxColumn & 0x01 ) + 1 );
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205 if( xErrorOccurred == pdTRUE )
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207 xMessage.pcMessage = "FAIL";
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210 /* Send the message to the LCD gatekeeper for display. */
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211 xQueueSend( xLCDQueue, &xMessage, portMAX_DELAY );
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214 /*-----------------------------------------------------------*/
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216 void vLCDTask( void *pvParameters )
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218 xLCDMessage xMessage;
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220 /* Initialise the LCD and display a startup message. */
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224 LCD_gotoxy( 1, 1 );
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225 LCD_puts( ( signed portCHAR * ) "www.FreeRTOS.org" );
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229 /* Wait for a message to arrive that requires displaying. */
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230 while( xQueueReceive( xLCDQueue, &xMessage, portMAX_DELAY ) != pdPASS );
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232 /* Display the message. Print each message to a different position. */
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234 LCD_gotoxy( ( xMessage.xColumn & 0x07 ) + 1, ( xMessage.xColumn & 0x01 ) + 1 );
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235 LCD_puts( xMessage.pcMessage );
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239 /*-----------------------------------------------------------*/
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241 /* Keep the compiler quiet. */
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243 int __putchar( int c )
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