/* * FreeRTOS V202212.00 * Copyright (C) 2020 Amazon.com, Inc. or its affiliates. All Rights Reserved. * * Permission is hereby granted, free of charge, to any person obtaining a copy of * this software and associated documentation files (the "Software"), to deal in * the Software without restriction, including without limitation the rights to * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of * the Software, and to permit persons to whom the Software is furnished to do so, * subject to the following conditions: * * The above copyright notice and this permission notice shall be included in all * copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. * * https://www.FreeRTOS.org * https://github.com/FreeRTOS * */ /****************************************************************************** * This project provides two demo applications. A low power project that * demonstrates the FreeRTOS tickless mode, and a more comprehensive test and * demo application. The configCREATE_LOW_POWER_DEMO setting (defined at the * top of FreeRTOSConfig.h) is used to select between the two. The low power * demo is implemented and described in main_low_power.c. The more * comprehensive test and demo application is implemented and described in * main_full.c. * * This file implements the code that is not demo specific, including the * hardware setup and FreeRTOS hook functions. */ /* Kernel includes. */ #include "FreeRTOS.h" #include "task.h" /* Platform includes. */ #include "lcd.h" /*-----------------------------------------------------------*/ /* * Prepare the board of the demo. */ extern void vHardwareSetup( void ); /* * main_low_power() is used when configCREATE_LOW_POWER_DEMO is set to 1. * main_full() is used when configCREATE_LOW_POWER_DEMO is set to 0. */ extern void main_low_power( void ); extern void main_full( void ); /* Prototypes for the standard FreeRTOS callback/hook functions implemented * within this file. */ void vApplicationMallocFailedHook( void ); void vApplicationIdleHook( void ); void vApplicationStackOverflowHook( TaskHandle_t pxTask, char * pcTaskName ); void vApplicationTickHook( void ); /*-----------------------------------------------------------*/ /* See the documentation page for this demo on the FreeRTOS.org web site for * full information - including hardware setup requirements. */ void main( void ) { /* Call the Renesas provided setup. */ vHardwareSetup(); lcd_initialize(); lcd_display( LCD_LINE1, "FreeRTOS" ); /* The configCREATE_LOW_POWER_DEMO setting is described in FreeRTOSConfig.h. */ #if configCREATE_LOW_POWER_DEMO == 1 { lcd_display( LCD_LINE2, "LP Demo" ); main_low_power(); } #else { lcd_display( LCD_LINE2, "Ful Demo" ); main_full(); } #endif } /*-----------------------------------------------------------*/ void vApplicationMallocFailedHook( void ) { /* vApplicationMallocFailedHook() will only be called if * configUSE_MALLOC_FAILED_HOOK is set to 1 in FreeRTOSConfig.h. It is a hook * function that will get called if a call to pvPortMalloc() fails. * pvPortMalloc() is called internally by the kernel whenever a task, queue, * timer or semaphore is created. It is also called by various parts of the * demo application. If heap_1.c, heap_2.c or heap_4.c are used, then the size * of the heap available to pvPortMalloc() is defined by configTOTAL_HEAP_SIZE * in FreeRTOSConfig.h, and the xPortGetFreeHeapSize() API function can be used * to query the size of free heap space that remains (although it does not * provide information on how the remaining heap might be fragmented). */ taskDISABLE_INTERRUPTS(); for( ; ; ) { } } /*-----------------------------------------------------------*/ void vApplicationIdleHook( void ) { /* vApplicationIdleHook() will only be called if configUSE_IDLE_HOOK is set * to 1 in FreeRTOSConfig.h. It will be called on each iteration of the idle * task. It is essential that code added to this hook function never attempts * to block in any way (for example, call xQueueReceive() with a block time * specified, or call vTaskDelay()). If the application makes use of the * vTaskDelete() API function (as this demo application does) then it is also * important that vApplicationIdleHook() is permitted to return to its calling * function, because it is the responsibility of the idle task to clean up * memory allocated by the kernel to any task that has since been deleted. */ } /*-----------------------------------------------------------*/ void vApplicationStackOverflowHook( TaskHandle_t pxTask, char * pcTaskName ) { ( void ) pcTaskName; ( void ) pxTask; /* Run time stack overflow checking is performed if * configCHECK_FOR_STACK_OVERFLOW is defined to 1 or 2. This hook function is * called if a stack overflow is detected. */ taskDISABLE_INTERRUPTS(); for( ; ; ) { } } /*-----------------------------------------------------------*/ void vApplicationTickHook( void ) { /* This function will be called by each tick interrupt if * configUSE_TICK_HOOK is set to 1 in FreeRTOSConfig.h. User code can be * added here, but the tick hook is called from an interrupt context, so * code must not attempt to block, and only the interrupt safe FreeRTOS API * functions can be used (those that end in FromISR()). */ } /*-----------------------------------------------------------*/ void vAssertCalled( void ) { volatile unsigned long ul = 0; taskENTER_CRITICAL(); { /* Set ul to a non-zero value using the debugger to step out of this * function. */ while( ul == 0 ) { __asm volatile ( "NOP" ); } } taskEXIT_CRITICAL(); }