2 FreeRTOS.org V5.3.0 - Copyright (C) 2003-2009 Richard Barry.
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4 This file is part of the FreeRTOS.org distribution.
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6 FreeRTOS.org is free software; you can redistribute it and/or modify it
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7 under the terms of the GNU General Public License (version 2) as published
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8 by the 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.org without being obliged to provide
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11 the source code for any proprietary components. Alternative commercial
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12 license and support terms are also available upon request. See the
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13 licensing section of http://www.FreeRTOS.org for full details.
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15 FreeRTOS.org is distributed in the hope that it will be useful, but WITHOUT
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16 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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17 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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20 You should have received a copy of the GNU General Public License along
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21 with FreeRTOS.org; if not, write to the Free Software Foundation, Inc., 59
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22 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
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25 ***************************************************************************
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27 * Get the FreeRTOS eBook! See http://www.FreeRTOS.org/Documentation *
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29 * This is a concise, step by step, 'hands on' guide that describes both *
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30 * general multitasking concepts and FreeRTOS specifics. It presents and *
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31 * explains numerous examples that are written using the FreeRTOS API. *
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32 * Full source code for all the examples is provided in an accompanying *
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35 ***************************************************************************
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39 Please ensure to read the configuration and relevant port sections of the
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40 online documentation.
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42 http://www.FreeRTOS.org - Documentation, latest information, license and
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45 http://www.SafeRTOS.com - A version that is certified for use in safety
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48 http://www.OpenRTOS.com - Commercial support, development, porting,
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49 licensing and training services.
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54 * Creates all the demo application tasks, then starts the scheduler. The WEB
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55 * documentation provides more details of the standard demo application tasks.
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56 * In addition to the standard demo tasks, the following tasks and tests are
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57 * defined and/or created within this file:
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59 * "Check" task - This only executes every five seconds but has a high priority
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60 * to ensure it gets processor time. Its main function is to check that all the
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61 * standard demo tasks are still operational. While no errors have been
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62 * discovered the check task will toggle an LED every 5 seconds - the toggle
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63 * rate increasing to 500ms being a visual indication that at least one task has
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64 * reported unexpected behaviour.
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66 * "Reg test" tasks - These fill the registers with known values, then check
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67 * that each register still contains its expected value. Each task uses
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68 * different values. The tasks run with very low priority so get preempted very
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69 * frequently. A register containing an unexpected value is indicative of an
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70 * error in the context switching mechanism.
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74 /* Standard includes. */
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77 /* Scheduler includes. */
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78 #include "FreeRTOS.h"
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83 /* Demo app includes. */
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85 #include "crflash.h"
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86 #include "partest.h"
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87 #include "semtest.h"
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88 #include "GenQTest.h"
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90 #include "comtest2.h"
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92 /*-----------------------------------------------------------*/
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94 /* The time between cycles of the 'check' functionality - as described at the
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95 top of this file. */
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96 #define mainNO_ERROR_PERIOD ( ( portTickType ) 5000 / portTICK_RATE_MS )
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98 /* The rate at which the LED controlled by the 'check' task will flash should an
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99 error have been detected. */
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100 #define mainERROR_PERIOD ( ( portTickType ) 500 / portTICK_RATE_MS )
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102 /* The LED controlled by the 'check' task. */
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103 #define mainCHECK_LED ( 3 )
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105 /* ComTest constants - there is no free LED for the comtest tasks. */
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106 #define mainCOM_TEST_BAUD_RATE ( ( unsigned portLONG ) 19200 )
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107 #define mainCOM_TEST_LED ( 5 )
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109 /* Task priorities. */
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110 #define mainCOM_TEST_PRIORITY ( tskIDLE_PRIORITY + 2 )
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111 #define mainCHECK_TASK_PRIORITY ( tskIDLE_PRIORITY + 3 )
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112 #define mainSEM_TEST_PRIORITY ( tskIDLE_PRIORITY + 1 )
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113 #define mainBLOCK_Q_PRIORITY ( tskIDLE_PRIORITY + 2 )
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114 #define mainGEN_QUEUE_TASK_PRIORITY ( tskIDLE_PRIORITY )
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116 /* Co-routines are used to flash the LEDs. */
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117 #define mainNUM_FLASH_CO_ROUTINES ( 3 )
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119 /* The baud rate used by the comtest tasks. */
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120 #define mainBAUD_RATE ( 38400 )
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122 /* There is no spare LED for the comtest tasks, so this is set to an invalid
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124 #define mainCOM_LED ( 4 )
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127 * Configure the hardware for the demo.
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129 static void prvSetupHardware( void );
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132 * Implements the 'check' task functionality as described at the top of this
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135 static void prvCheckTask( void *pvParameters );
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138 * Implement the 'Reg test' functionality as described at the top of this file.
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140 static void vRegTest1Task( void *pvParameters );
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141 static void vRegTest2Task( void *pvParameters );
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143 /*-----------------------------------------------------------*/
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145 /* Counters used to detect errors within the reg test tasks. */
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146 static volatile unsigned portLONG ulRegTest1Counter = 0x11111111, ulRegTest2Counter = 0x22222222;
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148 /*-----------------------------------------------------------*/
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152 /* Setup the hardware ready for this demo. */
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153 prvSetupHardware();
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155 /* Start the standard demo tasks. */
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156 vStartSemaphoreTasks( mainSEM_TEST_PRIORITY );
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157 vStartGenericQueueTasks( mainGEN_QUEUE_TASK_PRIORITY );
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158 vStartQueuePeekTasks();
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159 vStartBlockingQueueTasks( mainBLOCK_Q_PRIORITY );
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160 vAltStartComTestTasks( mainCOM_TEST_PRIORITY, mainBAUD_RATE, mainCOM_LED );
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162 /* For demo purposes use some co-routines to flash the LEDs. */
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163 vStartFlashCoRoutines( mainNUM_FLASH_CO_ROUTINES );
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165 /* Create the check task. */
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166 xTaskCreate( prvCheckTask, ( signed portCHAR * ) "Check", configMINIMAL_STACK_SIZE, NULL, mainCHECK_TASK_PRIORITY, NULL );
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169 /* Start the reg test tasks - defined in this file. */
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170 xTaskCreate( vRegTest1Task, ( signed portCHAR * ) "Reg1", configMINIMAL_STACK_SIZE, ( void * ) &ulRegTest1Counter, tskIDLE_PRIORITY, NULL );
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171 xTaskCreate( vRegTest2Task, ( signed portCHAR * ) "Reg2", configMINIMAL_STACK_SIZE, ( void * ) &ulRegTest2Counter, tskIDLE_PRIORITY, NULL );
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173 /* Start the scheduler. */
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174 vTaskStartScheduler();
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176 /* Will only get here if there was insufficient memory to create the idle
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182 /*-----------------------------------------------------------*/
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184 static void prvCheckTask( void *pvParameters )
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186 unsigned portLONG ulTicksToWait = mainNO_ERROR_PERIOD, ulError = 0, ulLastRegTest1Count = 0, ulLastRegTest2Count = 0;
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187 portTickType xLastExecutionTime;
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188 volatile unsigned portBASE_TYPE uxUnusedStack;
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190 ( void ) pvParameters;
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192 /* Initialise the variable used to control our iteration rate prior to
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194 xLastExecutionTime = xTaskGetTickCount();
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198 /* Wait until it is time to run the tests again. */
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199 vTaskDelayUntil( &xLastExecutionTime, ulTicksToWait );
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201 /* Has an error been found in any task? */
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202 if( xAreGenericQueueTasksStillRunning() != pdTRUE )
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207 if( xAreQueuePeekTasksStillRunning() != pdTRUE )
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212 if( xAreBlockingQueuesStillRunning() != pdTRUE )
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217 if( xAreSemaphoreTasksStillRunning() != pdTRUE )
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222 if( xAreComTestTasksStillRunning() != pdTRUE )
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227 if( ulLastRegTest1Count == ulRegTest1Counter )
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229 ulError |= 0x1000UL;
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232 if( ulLastRegTest2Count == ulRegTest2Counter )
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234 ulError |= 0x1000UL;
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237 ulLastRegTest1Count = ulRegTest1Counter;
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238 ulLastRegTest2Count = ulRegTest2Counter;
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240 /* If an error has been found then increase our cycle rate, and in so
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241 doing increase the rate at which the check task LED toggles. */
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244 ulTicksToWait = mainERROR_PERIOD;
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247 /* Toggle the LED each itteration. */
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248 vParTestToggleLED( mainCHECK_LED );
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250 /* For demo only - how much unused stack does this task have? */
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251 uxUnusedStack = uxTaskGetStackHighWaterMark( NULL );
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254 /*-----------------------------------------------------------*/
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256 void prvSetupHardware( void )
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258 portDISABLE_INTERRUPTS();
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260 /* Setup the port used to toggle LEDs. */
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261 vParTestInitialise();
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263 /*-----------------------------------------------------------*/
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265 void vApplicationStackOverflowHook( xTaskHandle *pxTask, signed portCHAR *pcTaskName )
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267 /* This will get called if a stack overflow is detected during the context
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268 switch. Set configCHECK_FOR_STACK_OVERFLOWS to 2 to also check for stack
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269 problems within nested interrupts, but only do this for debug purposes as
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270 it will increase the context switch time. */
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273 ( void ) pcTaskName;
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279 /*-----------------------------------------------------------*/
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281 void vApplicationIdleHook( void );
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282 void vApplicationIdleHook( void )
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284 /* The co-routines run in the idle task. */
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285 vCoRoutineSchedule();
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287 /*-----------------------------------------------------------*/
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291 /* To keep the linker happy only as the libraries have been removed from
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296 /*-----------------------------------------------------------*/
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298 static void vRegTest1Task( void *pvParameters )
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300 /* Sanity check - did we receive the parameter expected? */
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301 if( pvParameters != &ulRegTest1Counter )
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303 /* Change here so the check task can detect that an error occurred. */
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309 /* Set all the registers to known values, then check that each retains its
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310 expected value - as described at the top of this file. If an error is
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311 found then the loop counter will no longer be incremented allowing the check
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312 task to recognise the error. */
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313 asm volatile ( "reg_test_1_start: \n\t"
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314 " moveq #1, d0 \n\t"
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315 " moveq #2, d1 \n\t"
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316 " moveq #3, d2 \n\t"
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317 " moveq #4, d3 \n\t"
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318 " moveq #5, d4 \n\t"
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319 " moveq #6, d5 \n\t"
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320 " moveq #7, d6 \n\t"
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321 " moveq #8, d7 \n\t"
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322 " move #9, a0 \n\t"
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323 " move #10, a1 \n\t"
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324 " move #11, a2 \n\t"
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325 " move #12, a3 \n\t"
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326 " move #13, a4 \n\t"
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327 " move #14, a5 \n\t"
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328 " move #15, a6 \n\t"
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330 " cmpi.l #1, d0 \n\t"
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331 " bne reg_test_1_error \n\t"
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332 " cmpi.l #2, d1 \n\t"
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333 " bne reg_test_1_error \n\t"
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334 " cmpi.l #3, d2 \n\t"
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335 " bne reg_test_1_error \n\t"
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336 " cmpi.l #4, d3 \n\t"
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337 " bne reg_test_1_error \n\t"
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338 " cmpi.l #5, d4 \n\t"
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339 " bne reg_test_1_error \n\t"
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340 " cmpi.l #6, d5 \n\t"
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341 " bne reg_test_1_error \n\t"
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342 " cmpi.l #7, d6 \n\t"
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343 " bne reg_test_1_error \n\t"
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344 " cmpi.l #8, d7 \n\t"
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345 " bne reg_test_1_error \n\t"
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346 " move a0, d0 \n\t"
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347 " cmpi.l #9, d0 \n\t"
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348 " bne reg_test_1_error \n\t"
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349 " move a1, d0 \n\t"
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350 " cmpi.l #10, d0 \n\t"
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351 " bne reg_test_1_error \n\t"
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352 " move a2, d0 \n\t"
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353 " cmpi.l #11, d0 \n\t"
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354 " bne reg_test_1_error \n\t"
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355 " move a3, d0 \n\t"
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356 " cmpi.l #12, d0 \n\t"
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357 " bne reg_test_1_error \n\t"
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358 " move a4, d0 \n\t"
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359 " cmpi.l #13, d0 \n\t"
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360 " bne reg_test_1_error \n\t"
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361 " move a5, d0 \n\t"
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362 " cmpi.l #14, d0 \n\t"
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363 " bne reg_test_1_error \n\t"
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364 " move a6, d0 \n\t"
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365 " cmpi.l #15, d0 \n\t"
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366 " bne reg_test_1_error \n\t"
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367 " move ulRegTest1Counter, d0 \n\t"
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368 " addq #1, d0 \n\t"
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369 " move d0, ulRegTest1Counter \n\t"
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370 " bra reg_test_1_start \n\t"
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371 "reg_test_1_error: \n\t"
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372 " bra reg_test_1_error \n\t"
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375 /*-----------------------------------------------------------*/
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377 static void vRegTest2Task( void *pvParameters )
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379 /* Sanity check - did we receive the parameter expected? */
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380 if( pvParameters != &ulRegTest2Counter )
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382 /* Change here so the check task can detect that an error occurred. */
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388 /* Set all the registers to known values, then check that each retains its
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389 expected value - as described at the top of this file. If an error is
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390 found then the loop counter will no longer be incremented allowing the check
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391 task to recognise the error. */
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392 asm volatile ( "reg_test_2_start: \n\t"
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393 " moveq #10, d0 \n\t"
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394 " moveq #20, d1 \n\t"
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395 " moveq #30, d2 \n\t"
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396 " moveq #40, d3 \n\t"
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397 " moveq #50, d4 \n\t"
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398 " moveq #60, d5 \n\t"
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399 " moveq #70, d6 \n\t"
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400 " moveq #80, d7 \n\t"
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401 " move #90, a0 \n\t"
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402 " move #100, a1 \n\t"
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403 " move #110, a2 \n\t"
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404 " move #120, a3 \n\t"
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405 " move #130, a4 \n\t"
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406 " move #140, a5 \n\t"
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407 " move #150, a6 \n\t"
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409 " cmpi.l #10, d0 \n\t"
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410 " bne reg_test_2_error \n\t"
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411 " cmpi.l #20, d1 \n\t"
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412 " bne reg_test_2_error \n\t"
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413 " cmpi.l #30, d2 \n\t"
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414 " bne reg_test_2_error \n\t"
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415 " cmpi.l #40, d3 \n\t"
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416 " bne reg_test_2_error \n\t"
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417 " cmpi.l #50, d4 \n\t"
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418 " bne reg_test_2_error \n\t"
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419 " cmpi.l #60, d5 \n\t"
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420 " bne reg_test_2_error \n\t"
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421 " cmpi.l #70, d6 \n\t"
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422 " bne reg_test_2_error \n\t"
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423 " cmpi.l #80, d7 \n\t"
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424 " bne reg_test_2_error \n\t"
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425 " move a0, d0 \n\t"
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426 " cmpi.l #90, d0 \n\t"
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427 " bne reg_test_2_error \n\t"
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428 " move a1, d0 \n\t"
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429 " cmpi.l #100, d0 \n\t"
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430 " bne reg_test_2_error \n\t"
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431 " move a2, d0 \n\t"
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432 " cmpi.l #110, d0 \n\t"
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433 " bne reg_test_2_error \n\t"
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434 " move a3, d0 \n\t"
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435 " cmpi.l #120, d0 \n\t"
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436 " bne reg_test_2_error \n\t"
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437 " move a4, d0 \n\t"
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438 " cmpi.l #130, d0 \n\t"
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439 " bne reg_test_2_error \n\t"
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440 " move a5, d0 \n\t"
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441 " cmpi.l #140, d0 \n\t"
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442 " bne reg_test_2_error \n\t"
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443 " move a6, d0 \n\t"
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444 " cmpi.l #150, d0 \n\t"
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445 " bne reg_test_2_error \n\t"
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446 " move ulRegTest1Counter, d0 \n\t"
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447 " addq #1, d0 \n\t"
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448 " move d0, ulRegTest2Counter \n\t"
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449 " bra reg_test_2_start \n\t"
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450 "reg_test_2_error: \n\t"
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451 " bra reg_test_2_error \n\t"
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454 /*-----------------------------------------------------------*/
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projects / freertos / blob