2 FreeRTOS V8.1.1 - 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 /******************************************************************************
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67 * This project provides two demo applications. A simple blinky style project,
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68 * and a more comprehensive test and demo application. The
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69 * mainCREATE_SIMPLE_BLINKY_DEMO_ONLY setting (defined in this file) is used to
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70 * select between the two. The simply blinky demo is implemented and described
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71 * in main_blinky.c. The more comprehensive test and demo application is
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72 * implemented and described in main_full.c.
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74 * This file implements the code that is not demo specific, including the
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75 * hardware setup and FreeRTOS hook functions.
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79 /* Standard includes. */
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82 /* Kernel includes. */
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83 #include "FreeRTOS.h"
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86 /* Standard demo includes - just needed for the LED (ParTest) initialisation
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88 #include "partest.h"
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90 /* Atmel library includes. */
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93 /* Set mainCREATE_SIMPLE_BLINKY_DEMO_ONLY to one to run the simple blinky demo,
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94 or 0 to run the more comprehensive test and demo application. */
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95 #define mainCREATE_SIMPLE_BLINKY_DEMO_ONLY 0
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97 /*-----------------------------------------------------------*/
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100 * Set up the hardware ready to run this demo.
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102 static void prvSetupHardware( void );
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105 * main_blinky() is used when mainCREATE_SIMPLE_BLINKY_DEMO_ONLY is set to 1.
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106 * main_full() is used when mainCREATE_SIMPLE_BLINKY_DEMO_ONLY is set to 0.
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108 extern void main_blinky( void );
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109 extern void main_full( void );
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111 /* Prototypes for the standard FreeRTOS callback/hook functions implemented
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112 within this file. */
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113 void vApplicationMallocFailedHook( void );
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114 void vApplicationIdleHook( void );
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115 void vApplicationStackOverflowHook( TaskHandle_t pxTask, char *pcTaskName );
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116 void vApplicationTickHook( void );
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118 /*-----------------------------------------------------------*/
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120 /* See the documentation page for this demo on the FreeRTOS.org web site for
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121 full information - including hardware setup requirements. */
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125 /* Prepare the hardware to run this demo. */
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126 prvSetupHardware();
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128 /* The mainCREATE_SIMPLE_BLINKY_DEMO_ONLY setting is described at the top
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130 #if mainCREATE_SIMPLE_BLINKY_DEMO_ONLY == 1
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142 /*-----------------------------------------------------------*/
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144 static void prvSetupHardware( void )
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146 extern void SystemCoreClockUpdate( void );
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148 /* ASF function to setup clocking. */
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151 /* Ensure all priority bits are assigned as preemption priority bits. */
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152 NVIC_SetPriorityGrouping( 0 );
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154 /* Atmel library function to setup for the evaluation kit being used. */
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157 /* Perform any configuration necessary to use the ParTest LED output
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159 vParTestInitialise();
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161 /*-----------------------------------------------------------*/
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163 void vApplicationMallocFailedHook( void )
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165 /* vApplicationMallocFailedHook() will only be called if
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166 configUSE_MALLOC_FAILED_HOOK is set to 1 in FreeRTOSConfig.h. It is a hook
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167 function that will get called if a call to pvPortMalloc() fails.
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168 pvPortMalloc() is called internally by the kernel whenever a task, queue,
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169 timer or semaphore is created. It is also called by various parts of the
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170 demo application. If heap_1.c or heap_2.c are used, then the size of the
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171 heap available to pvPortMalloc() is defined by configTOTAL_HEAP_SIZE in
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172 FreeRTOSConfig.h, and the xPortGetFreeHeapSize() API function can be used
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173 to query the size of free heap space that remains (although it does not
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174 provide information on how the remaining heap might be fragmented). */
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175 taskDISABLE_INTERRUPTS();
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178 /*-----------------------------------------------------------*/
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180 void vApplicationIdleHook( void )
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182 /* vApplicationIdleHook() will only be called if configUSE_IDLE_HOOK is set
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183 to 1 in FreeRTOSConfig.h. It will be called on each iteration of the idle
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184 task. It is essential that code added to this hook function never attempts
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185 to block in any way (for example, call xQueueReceive() with a block time
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186 specified, or call vTaskDelay()). If the application makes use of the
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187 vTaskDelete() API function (as this demo application does) then it is also
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188 important that vApplicationIdleHook() is permitted to return to its calling
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189 function, because it is the responsibility of the idle task to clean up
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190 memory allocated by the kernel to any task that has since been deleted. */
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192 /*-----------------------------------------------------------*/
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194 void vApplicationStackOverflowHook( TaskHandle_t pxTask, char *pcTaskName )
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196 ( void ) pcTaskName;
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199 /* Run time stack overflow checking is performed if
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200 configCHECK_FOR_STACK_OVERFLOW is defined to 1 or 2. This hook
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201 function is called if a stack overflow is detected. */
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202 taskDISABLE_INTERRUPTS();
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205 /*-----------------------------------------------------------*/
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207 void vApplicationTickHook( void )
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209 /* This function will be called by each tick interrupt if
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210 configUSE_TICK_HOOK is set to 1 in FreeRTOSConfig.h. User code can be
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211 added here, but the tick hook is called from an interrupt context, so
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212 code must not attempt to block, and only the interrupt safe FreeRTOS API
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213 functions can be used (those that end in FromISR()). */
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215 /*-----------------------------------------------------------*/
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