2 * FreeRTOS Kernel V10.0.0
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3 * Copyright (C) 2017 Amazon.com, Inc. or its affiliates. All Rights Reserved.
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5 * Permission is hereby granted, free of charge, to any person obtaining a copy of
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6 * this software and associated documentation files (the "Software"), to deal in
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7 * the Software without restriction, including without limitation the rights to
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8 * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
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9 * the Software, and to permit persons to whom the Software is furnished to do so,
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10 * subject to the following conditions:
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12 * The above copyright notice and this permission notice shall be included in all
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13 * copies or substantial portions of the Software. If you wish to use our Amazon
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14 * FreeRTOS name, please do so in a fair use way that does not cause confusion.
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16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
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18 * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
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19 * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
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20 * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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21 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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23 * http://www.FreeRTOS.org
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24 * http://aws.amazon.com/freertos
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26 * 1 tab == 4 spaces!
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29 /******************************************************************************
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30 * This project provides two demo applications. A simple blinky style project,
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31 * and a more comprehensive application that includes FreeRTOS+CLI, FreeRTOS+UDP
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32 * and FreeRTOS+FAT SL. The mainCREATE_SIMPLE_BLINKY_DEMO_ONLY setting (defined
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33 * in this file) is used to select between the two. The simply blinky demo is
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34 * implemented and described in main_blinky.c. The more comprehensive demo
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35 * application is implemented and described in main_full.c and full user
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36 * instructions are provided on the following URL:
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37 * http://www.FreeRTOS.org/Atmel_SAM4E_RTOS_Demo.html
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39 * This file implements the code that is not demo specific, including the
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40 * hardware setup and FreeRTOS hook functions.
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44 /* Kernel includes. */
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45 #include "FreeRTOS.h"
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48 /* Demo application includes. */
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49 #include "partest.h"
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51 /* Set mainCREATE_SIMPLE_BLINKY_DEMO_ONLY to one to run the simple blinky demo,
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52 or 0 to run the more comprehensive demo application that includes add-on
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54 #define mainCREATE_SIMPLE_BLINKY_DEMO_ONLY 1
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56 /*-----------------------------------------------------------*/
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59 * Set up the hardware ready to run this demo.
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61 static void prvSetupHardware( void );
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64 * main_blinky() is used when mainCREATE_SIMPLE_BLINKY_DEMO_ONLY is set to 1.
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65 * main_full() is used when mainCREATE_SIMPLE_BLINKY_DEMO_ONLY is set to 0.
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67 extern void main_blinky( void );
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68 extern void main_full( void );
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70 /*-----------------------------------------------------------*/
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74 /* Prepare the hardware to run this demo. */
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77 /* The mainCREATE_SIMPLE_BLINKY_DEMO_ONLY setting is described at the top
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79 #if ( mainCREATE_SIMPLE_BLINKY_DEMO_ONLY == 1 )
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85 /* Full user instructions are provided on the following URL:
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86 http://www.FreeRTOS.org/Atmel_SAM4E_RTOS_Demo.html */
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89 #endif /* mainCREATE_SIMPLE_BLINKY_DEMO_ONLY */
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93 /*-----------------------------------------------------------*/
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95 static void prvSetupHardware( void )
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97 /* Call the ASF initialisation functions. */
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100 pmc_enable_periph_clk( ID_GMAC );
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101 pmc_enable_periph_clk( ID_SMC );
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103 /*-----------------------------------------------------------*/
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105 void vApplicationMallocFailedHook( void )
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107 static volatile uint32_t ulCount = 0;
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109 /* vApplicationMallocFailedHook() will only be called if
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110 configUSE_MALLOC_FAILED_HOOK is set to 1 in FreeRTOSConfig.h. It is a hook
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111 function that will get called if a call to pvPortMalloc() fails.
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112 pvPortMalloc() is called internally by the kernel whenever a task, queue,
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113 timer or semaphore is created. It is also called by various parts of the
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114 demo application. If heap_1.c or heap_2.c are used, then the size of the
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115 heap available to pvPortMalloc() is defined by configTOTAL_HEAP_SIZE in
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116 FreeRTOSConfig.h, and the xPortGetFreeHeapSize() API function can be used
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117 to query the size of free heap space that remains (although it does not
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118 provide information on how the remaining heap might be fragmented).
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120 Just count the number of malloc fails as some failures may occur simply
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121 because the network load is very high, resulting in the consumption of a
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122 lot of network buffers. */
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125 /*-----------------------------------------------------------*/
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127 void vApplicationIdleHook( void )
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129 /* vApplicationIdleHook() will only be called if configUSE_IDLE_HOOK is set
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130 to 1 in FreeRTOSConfig.h. It will be called on each iteration of the idle
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131 task. It is essential that code added to this hook function never attempts
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132 to block in any way (for example, call xQueueReceive() with a block time
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133 specified, or call vTaskDelay()). If the application makes use of the
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134 vTaskDelete() API function (as this demo application does) then it is also
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135 important that vApplicationIdleHook() is permitted to return to its calling
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136 function, because it is the responsibility of the idle task to clean up
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137 memory allocated by the kernel to any task that has since been deleted. */
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139 /* The simple blinky demo does not use the idle hook - the full demo does. */
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140 #if( mainCREATE_SIMPLE_BLINKY_DEMO_ONLY == 0 )
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142 extern void vFullDemoIdleHook( void );
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144 /* Implemented in main_full.c. */
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145 vFullDemoIdleHook();
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149 /*-----------------------------------------------------------*/
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151 void vApplicationStackOverflowHook( TaskHandle_t pxTask, char *pcTaskName )
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153 ( void ) pcTaskName;
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156 /* Run time stack overflow checking is performed if
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157 configCHECK_FOR_STACK_OVERFLOW is defined to 1 or 2. This hook function is
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158 called if a stack overflow is detected. */
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159 vAssertCalled( __LINE__, __FILE__ );
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161 /*-----------------------------------------------------------*/
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163 void vApplicationTickHook( void )
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165 /* This function will be called by each tick interrupt if
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166 configUSE_TICK_HOOK is set to 1 in FreeRTOSConfig.h. User code can be
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167 added here, but the tick hook is called from an interrupt context, so
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168 code must not attempt to block, and only the interrupt safe FreeRTOS API
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169 functions can be used (those that end in FromISR()). */
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171 /* The simple blinky demo does not use the tick hook - the full demo does. */
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172 #if( mainCREATE_SIMPLE_BLINKY_DEMO_ONLY == 0 )
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174 extern void vFullDemoTickHook( void );
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176 /* Implemented in main_full.c. */
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177 vFullDemoTickHook();
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181 /*-----------------------------------------------------------*/
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183 void vAssertCalled( uint32_t ulLine, const char *pcFile )
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185 /* The following two variables are just to ensure the parameters are not
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186 optimised away and therefore unavailable when viewed in the debugger. */
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187 volatile uint32_t ulLineNumber = ulLine, ulSetNonZeroInDebuggerToReturn = 0;
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188 volatile const char * const pcFileName = pcFile;
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190 taskENTER_CRITICAL();
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191 while( ulSetNonZeroInDebuggerToReturn == 0 )
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193 /* If you want to set out of this function in the debugger to see the
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194 assert() location then set ulSetNonZeroInDebuggerToReturn to a non-zero
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197 taskEXIT_CRITICAL();
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199 ( void ) pcFileName;
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200 ( void ) ulLineNumber;
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202 /*-----------------------------------------------------------*/
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204 /* Provided to keep the linker happy. */
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205 void _exit_( int status )
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208 vAssertCalled( __LINE__, __FILE__ );
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211 /*-----------------------------------------------------------*/
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213 /* Provided to keep the linker happy. */
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218 /*-----------------------------------------------------------*/
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220 /* Provided to keep the linker happy. */
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221 int _write( int x )
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226 /*-----------------------------------------------------------*/
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