213 lines
7.4 KiB
C
213 lines
7.4 KiB
C
/*
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* FreeRTOS Kernel V10.3.1
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* Copyright (C) 2020 Amazon.com, Inc. or its affiliates. All Rights Reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy of
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* this software and associated documentation files (the "Software"), to deal in
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* the Software without restriction, including without limitation the rights to
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* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
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* the Software, and to permit persons to whom the Software is furnished to do so,
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* subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in all
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* copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
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* FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
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* COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
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* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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* http://www.FreeRTOS.org
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* http://aws.amazon.com/freertos
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*
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* 1 tab == 4 spaces!
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*/
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/******************************************************************************
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* This project provides two demo applications. A simple blinky style project,
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* and a more comprehensive test and demo application. The
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* mainCREATE_SIMPLE_BLINKY_DEMO_ONLY setting (defined in this file) is used to
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* select between the two. The simply blinky demo is implemented and described
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* in main_blinky.c. The more comprehensive test and demo application is
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* implemented and described in main_full.c.
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*
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* This file implements the code that is not demo specific, including the
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* hardware setup and standard FreeRTOS hook functions.
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*
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* When running on the HiFive Rev B hardware:
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* When executing correctly the blue LED will toggle every three seconds. If
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* the blue LED toggles every 500ms then one of the self-monitoring test tasks
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* discovered a potential issue. If the red led toggles rapidly then a hardware
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* exception occurred.
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*
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* ENSURE TO READ THE DOCUMENTATION PAGE FOR THIS PORT AND DEMO APPLICATION ON
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* THE http://www.FreeRTOS.org WEB SITE FOR FULL INFORMATION ON USING THIS DEMO
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* APPLICATION, AND ITS ASSOCIATE FreeRTOS ARCHITECTURE PORT!
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*
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*/
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/* FreeRTOS kernel includes. */
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#include <FreeRTOS.h>
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#include <task.h>
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#include "include/gpio.h"
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/* Set mainCREATE_SIMPLE_BLINKY_DEMO_ONLY to one to run the simple blinky demo,
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or 0 to run the more comprehensive test and demo application. */
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#define mainCREATE_SIMPLE_BLINKY_DEMO_ONLY 1
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/*-----------------------------------------------------------*/
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/*
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* main_blinky() is used when mainCREATE_SIMPLE_BLINKY_DEMO_ONLY is set to 1.
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* main_full() is used when mainCREATE_SIMPLE_BLINKY_DEMO_ONLY is set to 0.
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*/
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#if mainCREATE_SIMPLE_BLINKY_DEMO_ONLY == 1
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extern void main_blinky( void );
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#else
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extern void main_full( void );
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#endif /* #if mainCREATE_SIMPLE_BLINKY_DEMO_ONLY == 1 */
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/*
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* Prototypes for the standard FreeRTOS callback/hook functions implemented
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* within this file. See https://www.freertos.org/a00016.html
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*/
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void vApplicationMallocFailedHook( void );
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void vApplicationIdleHook( void );
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void vApplicationStackOverflowHook( TaskHandle_t pxTask, char *pcTaskName );
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void vApplicationTickHook( void );
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/*
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* Setup the hardware to run this demo.
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*/
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static void prvSetupHardware( void );
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/*-----------------------------------------------------------*/
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int main( void )
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{
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prvSetupHardware();
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/* The mainCREATE_SIMPLE_BLINKY_DEMO_ONLY setting is described at the top
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of this file. */
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#if( mainCREATE_SIMPLE_BLINKY_DEMO_ONLY == 1 )
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{
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main_blinky();
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}
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#else
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{
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main_full();
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}
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#endif
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}
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/*-----------------------------------------------------------*/
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static void prvSetupHardware( void )
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{
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GPIO_REG(GPIO_CTRL) |= 0x1; // set gpio0 output mode
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}
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/*-----------------------------------------------------------*/
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void vApplicationMallocFailedHook( void )
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{
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/* vApplicationMallocFailedHook() will only be called if
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configUSE_MALLOC_FAILED_HOOK is set to 1 in FreeRTOSConfig.h. It is a hook
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function that will get called if a call to pvPortMalloc() fails.
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pvPortMalloc() is called internally by the kernel whenever a task, queue,
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timer or semaphore is created. It is also called by various parts of the
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demo application. If heap_1.c or heap_2.c are used, then the size of the
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heap available to pvPortMalloc() is defined by configTOTAL_HEAP_SIZE in
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FreeRTOSConfig.h, and the xPortGetFreeHeapSize() API function can be used
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to query the size of free heap space that remains (although it does not
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provide information on how the remaining heap might be fragmented). */
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taskDISABLE_INTERRUPTS();
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for( ;; );
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}
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/*-----------------------------------------------------------*/
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void vApplicationIdleHook( void )
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{
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/* vApplicationIdleHook() will only be called if configUSE_IDLE_HOOK is set
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to 1 in FreeRTOSConfig.h. It will be called on each iteration of the idle
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task. It is essential that code added to this hook function never attempts
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to block in any way (for example, call xQueueReceive() with a block time
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specified, or call vTaskDelay()). If the application makes use of the
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vTaskDelete() API function (as this demo application does) then it is also
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important that vApplicationIdleHook() is permitted to return to its calling
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function, because it is the responsibility of the idle task to clean up
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memory allocated by the kernel to any task that has since been deleted. */
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}
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/*-----------------------------------------------------------*/
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void vApplicationStackOverflowHook( TaskHandle_t pxTask, char *pcTaskName )
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{
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( void ) pcTaskName;
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( void ) pxTask;
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/* Run time stack overflow checking is performed if
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configCHECK_FOR_STACK_OVERFLOW is defined to 1 or 2. This hook
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function is called if a stack overflow is detected. */
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taskDISABLE_INTERRUPTS();
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for( ;; );
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}
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/*-----------------------------------------------------------*/
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void vApplicationTickHook( void )
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{
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/* The tests in the full demo expect some interaction with interrupts. */
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#if( mainCREATE_SIMPLE_BLINKY_DEMO_ONLY != 1 )
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{
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extern void vFullDemoTickHook( void );
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vFullDemoTickHook();
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}
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#endif
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}
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/*-----------------------------------------------------------*/
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void vAssertCalled( void )
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{
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volatile uint32_t ul;
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const uint32_t ulNullLoopDelay = 0x1ffffUL;
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taskDISABLE_INTERRUPTS();
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for( ;; )
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{
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for( ul = 0; ul < ulNullLoopDelay; ul++ )
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{
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__asm volatile( "nop" );
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}
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GPIO_REG(GPIO_DATA) ^= 0x1;
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}
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}
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/*-----------------------------------------------------------*/
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void vToggleLED( void )
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{
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#ifdef SIMULATION
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// 运行成功
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asm("li x27, 0x01");
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asm("li x26, 0x01");
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while (1);
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#else
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GPIO_REG(GPIO_DATA) ^= 0x1;
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#endif
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}
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/*-----------------------------------------------------------*/
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void *malloc( size_t xSize )
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{
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/* The linker script does not define a heap so artificially force an assert()
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if something unexpectedly uses the C library heap. See
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https://www.freertos.org/a00111.html for more information. */
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/* Remove warnings about unused parameter. */
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( void ) xSize;
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return NULL;
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}
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/*-----------------------------------------------------------*/
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