1 #error This project has been reworked for use with a later version of the Xilinx tools and IP. Please find more up to date projects in other FreeRTOS/Demo/MicroBlaze_nnn directories.
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4 FreeRTOS V8.0.0:rc1 - Copyright (C) 2014 Real Time Engineers Ltd.
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7 VISIT http://www.FreeRTOS.org TO ENSURE YOU ARE USING THE LATEST VERSION.
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9 ***************************************************************************
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11 * FreeRTOS provides completely free yet professionally developed, *
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12 * robust, strictly quality controlled, supported, and cross *
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13 * platform software that has become a de facto standard. *
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15 * Help yourself get started quickly and support the FreeRTOS *
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16 * project by purchasing a FreeRTOS tutorial book, reference *
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17 * manual, or both from: http://www.FreeRTOS.org/Documentation *
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21 ***************************************************************************
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23 This file is part of the FreeRTOS distribution.
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25 FreeRTOS is free software; you can redistribute it and/or modify it under
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26 the terms of the GNU General Public License (version 2) as published by the
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27 Free Software Foundation >>!AND MODIFIED BY!<< the FreeRTOS exception.
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29 >>! NOTE: The modification to the GPL is included to allow you to distribute
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30 >>! a combined work that includes FreeRTOS without being obliged to provide
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31 >>! the source code for proprietary components outside of the FreeRTOS
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34 FreeRTOS is distributed in the hope that it will be useful, but WITHOUT ANY
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35 WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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36 FOR A PARTICULAR PURPOSE. Full license text is available from the following
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37 link: http://www.freertos.org/a00114.html
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41 ***************************************************************************
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43 * Having a problem? Start by reading the FAQ "My application does *
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44 * not run, what could be wrong?" *
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46 * http://www.FreeRTOS.org/FAQHelp.html *
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48 ***************************************************************************
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50 http://www.FreeRTOS.org - Documentation, books, training, latest versions,
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51 license and Real Time Engineers Ltd. contact details.
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53 http://www.FreeRTOS.org/plus - A selection of FreeRTOS ecosystem products,
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54 including FreeRTOS+Trace - an indispensable productivity tool, a DOS
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55 compatible FAT file system, and our tiny thread aware UDP/IP stack.
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57 http://www.OpenRTOS.com - Real Time Engineers ltd license FreeRTOS to High
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58 Integrity Systems to sell under the OpenRTOS brand. Low cost OpenRTOS
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59 licenses offer ticketed support, indemnification and middleware.
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61 http://www.SafeRTOS.com - High Integrity Systems also provide a safety
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62 engineered and independently SIL3 certified version for use in safety and
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63 mission critical applications that require provable dependability.
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69 * Creates all the demo application tasks, then starts the scheduler. The WEB
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70 * documentation provides more details of the standard demo application tasks.
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72 * In addition to the standard tasks, main() creates two "Register Check"
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73 * tasks. These tasks write known values into every general purpose register,
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74 * then check each register to ensure it still contains the expected (written)
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75 * value. The register check tasks operate at the idle priority so will get
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76 * repeatedly preempted. A register being found to contain an incorrect value
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77 * following such a preemption would be indicative of an error in the context
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80 * Main.c also creates a task called "Check". This only executes every three
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81 * seconds but has the highest priority so is guaranteed to get processor time.
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82 * Its main function is to check that all the other tasks are still operational.
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83 * Each task (other than the "flash" tasks) maintains a unique count that is
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84 * incremented each time the task successfully completes its function. Should
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85 * any error occur within such a task the count is permanently halted. The
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86 * check task inspects the count of each task to ensure it has changed since
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87 * the last time the check task executed. If all the count variables have
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88 * changed all the tasks are still executing error free, and the check task
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89 * toggles the onboard LED. Should any task contain an error at any time
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90 * the LED toggle rate will change from 3 seconds to 500ms.
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94 /* Scheduler includes. */
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95 #include "FreeRTOS.h"
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98 /* Demo application includes. */
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99 #include "partest.h"
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101 #include "comtest2.h"
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102 #include "integer.h"
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103 #include "semtest.h"
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104 #include "BlockQ.h"
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105 #include "dynamic.h"
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108 /* Hardware library includes. */
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111 /* The rate at which the 'check' LED will flash when no errors have been
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113 #define mainNO_ERROR_CHECK_PERIOD 3000
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115 /* The rate at which the 'check' LED will flash when an error has been
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116 detected in one of the demo tasks. */
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117 #define mainERROR_CHECK_PERIOD 500
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119 /* Demo application task priorities. */
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120 #define mainLED_TASK_PRIORITY ( tskIDLE_PRIORITY + 2 )
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121 #define mainCHECK_TASK_PRIORITY ( tskIDLE_PRIORITY + 3 )
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122 #define mainSEM_TEST_PRIORITY ( tskIDLE_PRIORITY + 1 )
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123 #define mainCOM_TEST_PRIORITY ( tskIDLE_PRIORITY + 2 )
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124 #define mainBLOCK_Q_PRIORITY ( tskIDLE_PRIORITY + 2 )
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125 #define mainQUEUE_POLL_PRIORITY ( tskIDLE_PRIORITY + 2 )
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127 /* Software cannot influence the BAUD rate used by the simple UART
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129 #define mainBAUD_RATE 0
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131 /* The LED flashed by the 'check' task to indicate the system status. */
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132 #define mainCHECK_TASK_LED 3
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134 /* The first LED flashed by the COM port test tasks. LED mainCOM_TEST_LED + 1
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135 will also be used. */
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136 #define mainCOM_TEST_LED 4
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138 /* The register test task does not make any function calls so does not require
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139 much stack at all. */
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140 #define mainTINY_STACK 70
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143 * The task that executes at the highest priority and calls
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144 * prvCheckOtherTasksAreStillRunning(). See the description at the top
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147 static void vErrorChecks( void *pvParameters );
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150 * Checks that all the demo application tasks are still executing without error
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151 * - as described at the top of the file.
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153 static portBASE_TYPE prvCheckOtherTasksAreStillRunning( void );
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156 * The register test task as described at the top of this file.
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158 static void vRegisterTest( void *pvParameters );
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161 * Perform any necessary hardware configuration.
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163 static void prvSetupHardware( void );
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165 /* Set to pdFAIL should an error be discovered in the register test tasks. */
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166 static unsigned long ulRegisterTestStatus = pdPASS;
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167 const unsigned long *pulStatusAddr = &ulRegisterTestStatus;
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169 /*-----------------------------------------------------------*/
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172 * Create all the demo tasks - then start the scheduler.
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176 /* When re-starting a debug session (rather than cold booting) we want
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177 to ensure the installed interrupt handlers do not execute until after the
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178 scheduler has been started. */
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179 portDISABLE_INTERRUPTS();
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181 prvSetupHardware();
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183 /* Start the standard demo application tasks. */
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184 vStartLEDFlashTasks( mainLED_TASK_PRIORITY );
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185 vAltStartComTestTasks( mainCOM_TEST_PRIORITY, mainBAUD_RATE, mainCOM_TEST_LED );
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186 vStartIntegerMathTasks( tskIDLE_PRIORITY );
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187 vStartSemaphoreTasks( mainSEM_TEST_PRIORITY );
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188 vStartBlockingQueueTasks( mainBLOCK_Q_PRIORITY );
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189 vStartDynamicPriorityTasks();
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190 vStartPolledQueueTasks( mainQUEUE_POLL_PRIORITY );
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192 /* Create two register check tasks - using a different parameter for each.
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193 The parameter is used to generate the known values written to the registers. */
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194 #if configUSE_PREEMPTION == 1
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195 xTaskCreate( vRegisterTest, "Reg1", mainTINY_STACK, ( void * ) 10, tskIDLE_PRIORITY, NULL );
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196 xTaskCreate( vRegisterTest, "Reg2", mainTINY_STACK, ( void * ) 20, tskIDLE_PRIORITY, NULL );
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199 /* Create the 'check' task that is defined in this file. */
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200 xTaskCreate( vErrorChecks, "Check", configMINIMAL_STACK_SIZE, NULL, mainCHECK_TASK_PRIORITY, NULL );
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202 /* Finally start the scheduler. */
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203 vTaskStartScheduler();
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205 /* Should not get here as the processor is now under control of the
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210 /*-----------------------------------------------------------*/
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212 static void vErrorChecks( void *pvParameters )
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214 TickType_t xDelayPeriod = mainNO_ERROR_CHECK_PERIOD;
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216 /* The parameters are not used. */
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217 ( void ) pvParameters;
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219 /* Cycle for ever, delaying then checking all the other tasks are still
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220 operating without error. The delay period used will depend on whether
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221 or not an error has been discovered in one of the demo tasks. */
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224 vTaskDelay( xDelayPeriod );
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225 if( !prvCheckOtherTasksAreStillRunning() )
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227 /* An error has been found. Shorten the delay period to make
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228 the LED flash faster. */
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229 xDelayPeriod = mainERROR_CHECK_PERIOD;
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232 vParTestToggleLED( mainCHECK_TASK_LED );
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235 /*-----------------------------------------------------------*/
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237 static portBASE_TYPE prvCheckOtherTasksAreStillRunning( void )
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239 static portBASE_TYPE xAllTestsPass = pdTRUE;
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241 /* Return pdFALSE if any demo application task set has encountered
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244 if( xAreIntegerMathsTaskStillRunning() != pdTRUE )
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246 xAllTestsPass = pdFALSE;
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249 if( xAreComTestTasksStillRunning() != pdTRUE )
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251 xAllTestsPass = pdFALSE;
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254 if( xAreSemaphoreTasksStillRunning() != pdTRUE )
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256 xAllTestsPass = pdFALSE;
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259 if( xAreBlockingQueuesStillRunning() != pdTRUE )
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261 xAllTestsPass = pdFAIL;
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264 if( xAreDynamicPriorityTasksStillRunning() != pdTRUE )
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266 xAllTestsPass = ( long ) pdFAIL;
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269 if( xArePollingQueuesStillRunning() != pdTRUE )
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271 xAllTestsPass = ( long ) pdFAIL;
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274 /* Mutual exclusion on this variable is not necessary as we only read it. */
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275 if( ulRegisterTestStatus != pdPASS )
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277 xAllTestsPass = pdFALSE;
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280 return xAllTestsPass;
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282 /*-----------------------------------------------------------*/
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284 static void prvSetupHardware( void )
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286 /* Ensure the interrupt controller is enabled in order that subsequent
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287 code can successfully configure the peripherals. */
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288 XIntc_mMasterEnable( XPAR_OPB_INTC_0_BASEADDR );
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290 /* Initialise the GPIO used for the LED's. */
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291 vParTestInitialise();
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293 /*-----------------------------------------------------------*/
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295 static void vRegisterTest( void *pvParameters )
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299 /* Fill the registers with their register number plus the offset
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300 (added) value. The added value is passed in as a parameter so
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301 is contained in r5. */
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302 asm volatile ( "addi r3, r5, 3 \n\t" \
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303 "addi r4, r5, 4 \n\t" \
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304 "addi r6, r5, 6 \n\t" \
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305 "addi r7, r5, 7 \n\t" \
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306 "addi r8, r5, 8 \n\t" \
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307 "addi r9, r5, 9 \n\t" \
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308 "addi r10, r5, 10 \n\t" \
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309 "addi r11, r5, 11 \n\t" \
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310 "addi r12, r5, 12 \n\t" \
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311 "addi r16, r5, 16 \n\t" \
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312 "addi r17, r5, 17 \n\t" \
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313 "addi r18, r5, 18 \n\t" \
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314 "addi r19, r5, 19 \n\t" \
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315 "addi r20, r5, 20 \n\t" \
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316 "addi r21, r5, 21 \n\t" \
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317 "addi r22, r5, 22 \n\t" \
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318 "addi r23, r5, 23 \n\t" \
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319 "addi r24, r5, 24 \n\t" \
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320 "addi r25, r5, 25 \n\t" \
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321 "addi r26, r5, 26 \n\t" \
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322 "addi r27, r5, 27 \n\t" \
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323 "addi r28, r5, 28 \n\t" \
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324 "addi r29, r5, 29 \n\t" \
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325 "addi r30, r5, 30 \n\t" \
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326 "addi r31, r5, 31 \n\t"
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329 /* Now read back the register values to ensure they are as we expect.
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330 This task will get preempted frequently so other tasks are likely to
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331 have executed since the register values were written. */
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333 /* r3 should contain r5 + 3. Subtract 3 to leave r3 equal to r5. */
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334 asm volatile ( "addi r3, r3, -3 " );
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336 /* Compare r3 and r5. If they are not equal then either r3 or r5
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337 contains the wrong value and *pulStatusAddr is to pdFAIL. */
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338 asm volatile ( "cmp r3, r3, r5 \n\t" \
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339 "beqi r3, 12 \n\t" \
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340 "lwi r3, r0, pulStatusAddr \n\t" \
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341 "sw r0, r0, r3 \n\t"
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344 /* Repeat for all the other registers. */
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345 asm volatile ( "addi r4, r4, -4 \n\t" \
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346 "cmp r4, r4, r5 \n\t" \
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347 "beqi r4, 12 \n\t" \
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348 "lwi r3, r0, pulStatusAddr \n\t" \
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349 "sw r0, r0, r3 \n\t" \
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350 "addi r6, r6, -6 \n\t" \
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351 "cmp r6, r6, r5 \n\t" \
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352 "beqi r6, 12 \n\t" \
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353 "lwi r3, r0, pulStatusAddr \n\t" \
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354 "sw r0, r0, r3 \n\t" \
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355 "addi r7, r7, -7 \n\t" \
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356 "cmp r7, r7, r5 \n\t" \
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357 "beqi r7, 12 \n\t" \
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358 "lwi r3, r0, pulStatusAddr \n\t" \
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359 "sw r0, r0, r3 \n\t" \
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360 "addi r8, r8, -8 \n\t" \
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361 "cmp r8, r8, r5 \n\t" \
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362 "beqi r8, 12 \n\t" \
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363 "lwi r3, r0, pulStatusAddr \n\t" \
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364 "sw r0, r0, r3 \n\t" \
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365 "addi r9, r9, -9 \n\t" \
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366 "cmp r9, r9, r5 \n\t" \
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367 "beqi r9, 12 \n\t" \
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368 "lwi r3, r0, pulStatusAddr \n\t" \
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369 "sw r0, r0, r3 \n\t" \
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370 "addi r10, r10, -10 \n\t" \
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371 "cmp r10, r10, r5 \n\t" \
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372 "beqi r10, 12 \n\t" \
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373 "lwi r3, r0, pulStatusAddr \n\t" \
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374 "sw r0, r0, r3 \n\t" \
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375 "addi r11, r11, -11 \n\t" \
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376 "cmp r11, r11, r5 \n\t" \
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377 "beqi r11, 12 \n\t" \
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378 "lwi r3, r0, pulStatusAddr \n\t" \
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379 "sw r0, r0, r3 \n\t" \
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380 "addi r12, r12, -12 \n\t" \
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381 "cmp r12, r12, r5 \n\t" \
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382 "beqi r12, 12 \n\t" \
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383 "lwi r3, r0, pulStatusAddr \n\t" \
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384 "sw r0, r0, r3 \n\t" \
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385 "sw r0, r0, r3 \n\t" \
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386 "addi r16, r16, -16 \n\t" \
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387 "cmp r16, r16, r5 \n\t" \
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388 "beqi r16, 12 \n\t" \
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389 "lwi r3, r0, pulStatusAddr \n\t" \
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390 "sw r0, r0, r3 \n\t" \
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391 "addi r17, r17, -17 \n\t" \
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392 "cmp r17, r17, r5 \n\t" \
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393 "beqi r17, 12 \n\t" \
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394 "lwi r3, r0, pulStatusAddr \n\t" \
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395 "sw r0, r0, r3 \n\t" \
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396 "addi r18, r18, -18 \n\t" \
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397 "cmp r18, r18, r5 \n\t" \
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398 "beqi r18, 12 \n\t" \
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399 "lwi r3, r0, pulStatusAddr \n\t" \
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400 "sw r0, r0, r3 \n\t" \
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401 "addi r19, r19, -19 \n\t" \
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402 "cmp r19, r19, r5 \n\t" \
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403 "beqi r19, 12 \n\t" \
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404 "lwi r3, r0, pulStatusAddr \n\t" \
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405 "sw r0, r0, r3 \n\t" \
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406 "addi r20, r20, -20 \n\t" \
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407 "cmp r20, r20, r5 \n\t" \
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408 "beqi r20, 12 \n\t" \
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409 "lwi r3, r0, pulStatusAddr \n\t" \
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410 "sw r0, r0, r3 \n\t" \
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411 "addi r21, r21, -21 \n\t" \
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412 "cmp r21, r21, r5 \n\t" \
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413 "beqi r21, 12 \n\t" \
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414 "lwi r3, r0, pulStatusAddr \n\t" \
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415 "sw r0, r0, r3 \n\t" \
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416 "addi r22, r22, -22 \n\t" \
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417 "cmp r22, r22, r5 \n\t" \
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418 "beqi r22, 12 \n\t" \
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419 "lwi r3, r0, pulStatusAddr \n\t" \
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420 "sw r0, r0, r3 \n\t" \
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421 "addi r23, r23, -23 \n\t" \
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422 "cmp r23, r23, r5 \n\t" \
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423 "beqi r23, 12 \n\t" \
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424 "lwi r3, r0, pulStatusAddr \n\t" \
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425 "sw r0, r0, r3 \n\t" \
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426 "addi r24, r24, -24 \n\t" \
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427 "cmp r24, r24, r5 \n\t" \
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428 "beqi r24, 12 \n\t" \
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429 "lwi r3, r0, pulStatusAddr \n\t" \
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430 "sw r0, r0, r3 \n\t" \
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431 "addi r25, r25, -25 \n\t" \
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432 "cmp r25, r25, r5 \n\t" \
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433 "beqi r25, 12 \n\t" \
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434 "lwi r3, r0, pulStatusAddr \n\t" \
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435 "sw r0, r0, r3 \n\t" \
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436 "addi r26, r26, -26 \n\t" \
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437 "cmp r26, r26, r5 \n\t" \
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438 "beqi r26, 12 \n\t" \
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439 "lwi r3, r0, pulStatusAddr \n\t" \
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440 "sw r0, r0, r3 \n\t" \
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441 "addi r27, r27, -27 \n\t" \
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442 "cmp r27, r27, r5 \n\t" \
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443 "beqi r27, 12 \n\t" \
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444 "lwi r3, r0, pulStatusAddr \n\t" \
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445 "sw r0, r0, r3 \n\t" \
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446 "addi r28, r28, -28 \n\t" \
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447 "cmp r28, r28, r5 \n\t" \
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448 "beqi r28, 12 \n\t" \
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449 "lwi r3, r0, pulStatusAddr \n\t" \
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450 "sw r0, r0, r3 \n\t" \
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451 "addi r29, r29, -29 \n\t" \
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452 "cmp r29, r29, r5 \n\t" \
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453 "beqi r29, 12 \n\t" \
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454 "lwi r3, r0, pulStatusAddr \n\t" \
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455 "sw r0, r0, r3 \n\t" \
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456 "addi r30, r30, -30 \n\t" \
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457 "cmp r30, r30, r5 \n\t" \
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458 "beqi r30, 12 \n\t" \
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459 "lwi r3, r0, pulStatusAddr \n\t" \
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460 "sw r0, r0, r3 \n\t" \
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461 "addi r31, r31, -31 \n\t" \
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462 "cmp r31, r31, r5 \n\t" \
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463 "beqi r31, 12 \n\t" \
\r
464 "lwi r3, r0, pulStatusAddr \n\t" \
\r
465 "sw r0, r0, r3 \n\t"
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projects / freertos / blob