2 FreeRTOS V8.2.3 - Copyright (C) 2015 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 This file is part of the FreeRTOS distribution.
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9 FreeRTOS is free software; you can redistribute it and/or modify it under
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10 the terms of the GNU General Public License (version 2) as published by the
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11 Free Software Foundation >>>> AND MODIFIED BY <<<< the FreeRTOS exception.
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13 ***************************************************************************
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14 >>! NOTE: The modification to the GPL is included to allow you to !<<
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15 >>! distribute a combined work that includes FreeRTOS without being !<<
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16 >>! obliged to provide the source code for proprietary components !<<
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17 >>! outside of the FreeRTOS kernel. !<<
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18 ***************************************************************************
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20 FreeRTOS is distributed in the hope that it will be useful, but WITHOUT ANY
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21 WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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22 FOR A PARTICULAR PURPOSE. Full license text is available on the following
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23 link: http://www.freertos.org/a00114.html
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25 ***************************************************************************
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27 * FreeRTOS provides completely free yet professionally developed, *
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28 * robust, strictly quality controlled, supported, and cross *
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29 * platform software that is more than just the market leader, it *
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30 * is the industry's de facto standard. *
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32 * Help yourself get started quickly while simultaneously helping *
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33 * to support the FreeRTOS project by purchasing a FreeRTOS *
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34 * tutorial book, reference manual, or both: *
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35 * http://www.FreeRTOS.org/Documentation *
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37 ***************************************************************************
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39 http://www.FreeRTOS.org/FAQHelp.html - Having a problem? Start by reading
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40 the FAQ page "My application does not run, what could be wrong?". Have you
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41 defined configASSERT()?
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43 http://www.FreeRTOS.org/support - In return for receiving this top quality
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44 embedded software for free we request you assist our global community by
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45 participating in the support forum.
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47 http://www.FreeRTOS.org/training - Investing in training allows your team to
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48 be as productive as possible as early as possible. Now you can receive
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49 FreeRTOS training directly from Richard Barry, CEO of Real Time Engineers
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50 Ltd, and the world's leading authority on the world's leading RTOS.
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52 http://www.FreeRTOS.org/plus - A selection of FreeRTOS ecosystem products,
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53 including FreeRTOS+Trace - an indispensable productivity tool, a DOS
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54 compatible FAT file system, and our tiny thread aware UDP/IP stack.
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56 http://www.FreeRTOS.org/labs - Where new FreeRTOS products go to incubate.
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57 Come and try FreeRTOS+TCP, our new open source TCP/IP stack for FreeRTOS.
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59 http://www.OpenRTOS.com - Real Time Engineers ltd. license FreeRTOS to High
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60 Integrity Systems ltd. to sell under the OpenRTOS brand. Low cost OpenRTOS
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61 licenses offer ticketed support, indemnification and commercial middleware.
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63 http://www.SafeRTOS.com - High Integrity Systems also provide a safety
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64 engineered and independently SIL3 certified version for use in safety and
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65 mission critical applications that require provable dependability.
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70 /******************************************************************************
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71 * This project provides two demo applications. A simple blinky style project
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72 * that demonstrates low power tickless functionality, and a more comprehensive
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73 * test and demo application. The configCREATE_LOW_POWER_DEMO setting, which is
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74 * defined in FreeRTOSConfig.h, is used to select between the two, and to select
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75 * the clock used when demonstrating tickless functionality.
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77 * The simply blinky low power demo is implemented and described in
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78 * main_low_power.c. The more comprehensive test and demo application is
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79 * implemented and described in main_full.c.
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81 * This file implements the code that is not demo specific, including the
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82 * hardware setup and standard FreeRTOS hook functions.
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84 * ENSURE TO READ THE DOCUMENTATION PAGE FOR THIS PORT AND DEMO APPLICATION ON
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85 * THE http://www.FreeRTOS.org WEB SITE FOR FULL INFORMATION ON USING THIS DEMO
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86 * APPLICATION, AND ITS ASSOCIATE FreeRTOS ARCHITECTURE PORT!
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90 #warning Check the tick suppression routine in the case where the system unblocks before an entire tick period has expired.
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92 /* FreeRTOS includes. */
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93 #include "FreeRTOS.h"
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96 /* SiLabs includes. */
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97 #include "em_chip.h"
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99 #include "bsp_trace.h"
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102 /* Set mainCREATE_LOW_POWER_DEMO to one to run the simple blinky demo, or 0 to
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103 run the more comprehensive test and demo application. */
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104 #define mainCREATE_LOW_POWER_DEMO 0
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106 /*-----------------------------------------------------------*/
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109 * Configure the hardware as necessary to run this demo.
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111 static void prvSetupHardware( void );
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114 * main_low_power() is used when configCREATE_LOW_POWER_DEMO is set to 1.
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115 * main_full() is used when configCREATE_LOW_POWER_DEMO is set to 0.
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117 #if( configCREATE_LOW_POWER_DEMO == 1 )
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118 extern void main_low_power( void );
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120 extern void main_full( void );
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121 #endif /* #if configCREATE_LOW_POWER_DEMO == 1 */
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123 /* Prototypes for the standard FreeRTOS callback/hook functions implemented
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124 within this file. */
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125 void vApplicationMallocFailedHook( void );
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126 void vApplicationIdleHook( void );
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127 void vApplicationStackOverflowHook( TaskHandle_t pxTask, char *pcTaskName );
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128 void vApplicationTickHook( void );
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130 /*-----------------------------------------------------------*/
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134 /* Configure the hardware ready to run the demo. */
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135 prvSetupHardware();
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137 /* The mainCREATE_LOW_POWER_DEMO setting is described at the top
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139 #if( configCREATE_LOW_POWER_DEMO != 0 )
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149 /* Should not get here. */
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152 /*-----------------------------------------------------------*/
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154 static void prvSetupHardware( void )
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156 /* Library initialisation routines. */
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158 BSP_TraceProfilerSetup();
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159 SLEEP_Init( NULL, NULL );
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162 SLEEP_SleepBlockBegin( configENERGY_MODE );
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164 /*-----------------------------------------------------------*/
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166 void vApplicationMallocFailedHook( void )
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168 /* Called if a call to pvPortMalloc() fails because there is insufficient
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169 free memory available in the FreeRTOS heap. pvPortMalloc() is called
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170 internally by FreeRTOS API functions that create tasks, queues, software
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171 timers, and semaphores. The size of the FreeRTOS heap is set by the
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172 configTOTAL_HEAP_SIZE configuration constant in FreeRTOSConfig.h. */
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174 /* Force an assert. */
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175 configASSERT( ( volatile void * ) NULL );
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177 /*-----------------------------------------------------------*/
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179 void vApplicationStackOverflowHook( TaskHandle_t pxTask, char *pcTaskName )
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181 ( void ) pcTaskName;
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184 /* Run time stack overflow checking is performed if
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185 configCHECK_FOR_STACK_OVERFLOW is defined to 1 or 2. This hook
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186 function is called if a stack overflow is detected. */
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188 /* Force an assert. */
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189 configASSERT( ( volatile void * ) NULL );
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191 /*-----------------------------------------------------------*/
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193 void vApplicationIdleHook( void )
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195 volatile size_t xFreeHeapSpace;
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197 /* This is just a trivial example of an idle hook. It is called on each
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198 cycle of the idle task. It must *NOT* attempt to block. In this case the
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199 idle task just queries the amount of FreeRTOS heap that remains. See the
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200 memory management section on the http://www.FreeRTOS.org web site for memory
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201 management options. If there is a lot of heap memory free then the
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202 configTOTAL_HEAP_SIZE value in FreeRTOSConfig.h can be reduced to free up
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204 xFreeHeapSpace = xPortGetFreeHeapSize();
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206 /* Remove compiler warning about xFreeHeapSpace being set but never used. */
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207 ( void ) xFreeHeapSpace;
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209 /*-----------------------------------------------------------*/
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211 void vApplicationTickHook( void )
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213 /* The full demo includes tests that run from the tick hook. */
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214 #if( configCREATE_LOW_POWER_DEMO == 0 )
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216 extern void vFullDemoTickHook( void );
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218 /* Some of the tests and demo tasks executed by the full demo include
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219 interaction from an interrupt - for which the tick interrupt is used
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220 via the tick hook function. */
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221 vFullDemoTickHook();
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225 /*-----------------------------------------------------------*/
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227 void vApplicationGetIdleTaskMemory( StaticTask_t **ppxIdleTaskTCBBuffer, StackType_t **ppxIdleTaskStackBuffer, uint16_t *pusIdleTaskStackSize )
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229 /* configUSE_STATIC_ALLOCATION is set to 1, so the application has the
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230 opportunity to supply the buffers that will be used by the Idle task as its
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231 stack and to hold its TCB. If these are set to NULL then the buffers will
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232 be allocated dynamically, just as if xTaskCreate() had been called. */
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233 *ppxIdleTaskTCBBuffer = NULL;
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234 *ppxIdleTaskStackBuffer = NULL;
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235 *pusIdleTaskStackSize = configMINIMAL_STACK_SIZE; /* In words. NOT in bytes! */
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237 /*-----------------------------------------------------------*/
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239 void vApplicationGetTimerTaskMemory( StaticTask_t **ppxTimerTaskTCBBuffer, StackType_t **ppxTimerTaskStackBuffer, uint16_t *pusTimerTaskStackSize )
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241 /* configUSE_STATIC_ALLOCATION is set to 1, so the application has the
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242 opportunity to supply the buffers that will be used by the Timer/RTOS daemon
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243 task as its stack and to hold its TCB. If these are set to NULL then the
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244 buffers will be allocated dynamically, just as if xTaskCreate() had been
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246 *ppxTimerTaskTCBBuffer = NULL;
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247 *ppxTimerTaskStackBuffer = NULL;
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248 *pusTimerTaskStackSize = configTIMER_TASK_STACK_DEPTH; /* In words. NOT in bytes! */
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250 /*-----------------------------------------------------------*/
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