FreeRTOS移植-2个任务中延时不一样但是波形一样是怎么回事

369 FreeRTOS

问答对人有帮助，内容完整，我也想知道答案 0 main.c [C] 纯文本查看复制代码 /*/#include "main.h"#include "sys.h"#include "delay.h"#include "FreeRTOS.h"#include "task.h"#define START_TASK_PRIO 1 /ÈÎÎñÓÅÏÈ¼¶/#define START_STK_SIZE 128 /ÈÎÎñ¶ÑÕ»´óÐ¡/TaskHandle_t StartTask_Handle; /ÈÎÎñ¾ä±ú/void StartTask(void pvParameters); /ÈÎÎñº¯Êý/#define TEST1_TASK_PRIO 2#define TEST1_STK_SIZE 50TaskHandle_t TEST1Task_Handle;void Test1Task(void pvParameters);#define TEST2_TASK_PRIO 3#define TEST2_STK_SIZE 50TaskHandle_t TEST2Task_Handle;void Test2Task(void pvParameters);uint8_t test1, test2, test3;/*** ÉùÃ÷ **/static void SystemInitial(void);void StartTask(void pvParameters){ taskENTER_CRITICAL(); /½øÈëÁÙ½çÇø/ xTaskCreate((TaskFunction_t )Test1Task, /ÈÎÎñº¯Êý/(const char * )"Test1Task", /ÈÎÎñÃû³Æ/(uint16_t )TEST1_STK_SIZE, /ÈÎÎñ¶ÑÕ»´óÐ¡/(void * )NULL, /´«µÝ¸øÈÎÎñº¯ÊýµÄ²ÎÊý/(UBaseType_t )TEST1_TASK_PRIO, /ÈÎÎñÓÅÏÈ¼¶/(TaskHandle_t )&TEST1Task_Handle); /ÈÎÎñ¾ä±ú/ xTaskCreate((TaskFunction_t )Test2Task,(const char * )"Test2Task",(uint16_t )TEST2_STK_SIZE,(void * )NULL,(UBaseType_t )TEST2_TASK_PRIO,(TaskHandle_t )&TEST2Task_Handle); vTaskDelete(StartTask_Handle); /É¾³ý¿ªÊ¼ÈÎÎñ/ taskEXIT_CRITICAL(); /ÍÆ³öÁÙ½çÇø/} void Test1Task(void pvParameters){ while (1) { test1 = ~test1; vTaskDelay(2);// DelayNms(2); }} void Test2Task(void pvParameters){ while (1) { test2 = ~test2; vTaskDelay(5); }} static void SystemInitial(void){ DelayInitial();}int main(void){ SystemInitial(); /´´½¨¿ªÊ¼ÈÎÎñ/ xTaskCreate((TaskFunction_t )StartTask, /ÈÎÎñº¯Êý/(const char * )"StartTask", /ÈÎÎñÃû³Æ/(uint16_t )START_STK_SIZE, /ÈÎÎñ¶ÑÕ»´óÐ¡/(void * )NULL, /´«µÝ¸øÈÎÎñº¯ÊýµÄ²ÎÊý/(UBaseType_t )START_TASK_PRIO, /ÈÎÎñÓÅÏÈ¼¶/(TaskHandle_t )&StartTask_Handle); /ÈÎÎñ¾ä±ú/ /¿ªÆôÈÎÎñµ÷¶È/ vTaskStartScheduler();}/*************************END OF FILE************************/ delay.c [C] 纯文本查看* 复制代码 /*/#include "delay.h"#include "STM32f10x.h"#include "sys.h"#if SYSTEM_SUPPORT_OS #include "FreeRTOS.h" #include "task.h"#endifstatic uint8_t fac_us=0;//usÑÓÊ±±¶³ËÊý static uint16_t fac_ms=0;//msÑÓÊ±±¶³ËÊý,ÔÚucosÏÂ,´ú±íÃ¿¸ö½ÚÅÄµÄmsÊý__IO uint32_t TimingDelay; extern void xPortSysTickHandler(void);extern void TimingDelayDecrement(void);//systickÖÐ¶Ï·þÎñº¯Êý,Ê¹ÓÃFreeRTOSÊ±ÓÃµ½void SysTick_Handler(void){ if(xTaskGetSchedulerState()!=taskSCHEDULER_NOT_STARTED)//ÏµÍ³ÒÑ¾ÔËÐÐ { xPortSysTickHandler(); } TimingDelayDecrement();} //³õÊ¼»¯ÑÓ³Ùº¯Êý//SYSTICKµÄÊ±ÖÓ¹Ì¶¨ÎªAHBÊ±ÖÓ£¬»ù´¡Àý³ÌÀïÃæSYSTICKÊ±ÖÓÆµÂÊÎªAHB/8//ÕâÀïÎªÁË¼æÈÝFreeRTOS£¬ËùÒÔ½«SYSTICKµÄÊ±ÖÓÆµÂÊ¸ÄÎªAHBµÄÆµÂÊ£¡//SYSCLK:ÏµÍ³Ê±ÖÓÆµÂÊvoid DelayInitial(void){/ uint32_t reload;SysTick_CLKSourceConfig(SysTick_CLKSource_HCLK); //Ñ¡ÔñÍâ²¿Ê±ÖÓ HCLKfac_us=SystemCoreClock/1000000; //²»ÂÛÊÇ·ñÊ¹ÓÃOS,fac_us¶¼ÐèÒªÊ¹ÓÃreload=SystemCoreClock/1000000; //Ã¿ÃëÖÓµÄ¼ÆÊý´ÎÊý µ¥Î»ÎªM reload=1000000/configTICK_RATE_HZ; //¸ù¾ÝconfigTICK_RATE_HZÉè¶¨Òç³öÊ±¼ä //reloadÎª24Î»¼Ä´æÆ÷,×î´óÖµ:16777216,ÔÚ72MÏÂ,Ô¼ºÏ0.233s×óÓÒfac_ms=1000/configTICK_RATE_HZ; //´ú±íOS¿ÉÒÔÑÓÊ±µÄ×îÉÙµ¥Î» SysTick->CTRL\|=SysTick_CTRL_TICKINT_Msk; //¿ªÆôSYSTICKÖÐ¶ÏSysTick->LOAD=reload; //Ã¿1/configTICK_RATE_HZÃëÖÐ¶ÏÒ»´ÎSysTick->CTRL\|=SysTick_CTRL_ENABLE_Msk; //¿ªÆôSYSTICK / fac_us=SystemCoreClock/1000000; //²»ÂÛÊÇ·ñÊ¹ÓÃOS,fac_us¶¼ÐèÒªÊ¹ÓÃ fac_ms=1000/configTICK_RATE_HZ; //´ú±íOS¿ÉÒÔÑÓÊ±µÄ×îÉÙµ¥Î» /* * SystemCoreClock / 1000 1msÖÐ¶ÏÒ»´Î * SystemCoreClock / 100000 10usÖÐ¶ÏÒ»´Î * SystemCoreClock / 1000000 1usÖÐ¶ÏÒ»´Î / if (SysTick_Config(SystemCoreClock / 1000)) { while (1); } /¹Ø±Õsystick timer¶¨Ê±Æ÷/ /SysTick->CTRL &= ~SysTick_CTRL_ENABLE_Msk;/ /Ê¹ÄÜµÎ´ð¶¨Ê±Æ÷/ SysTick->CTRL \|= SysTick_CTRL_ENABLE_Msk; } //ÑÓÊ±nus//nus:ÒªÑÓÊ±µÄusÊý.//nus:0~204522252(×î´óÖµ¼´2^32/fac_us@fac_us=168) void DelayNus(uint32_t nus){uint32_t ticks;uint32_t told,tnow,tcnt=0;uint32_t reload=SysTick->LOAD;//LOADµÄÖµ ticks=nusfac_us; //ÐèÒªµÄ½ÚÅÄÊý told=SysTick->VAL; //¸Õ½øÈëÊ±µÄ¼ÆÊýÆ÷Öµwhile(1){tnow=SysTick->VAL;if(tnow!=told){ if(tnow=ticks)break;//Ê±¼ä³¬¹ý/µÈÓÚÒªÑÓ³ÙµÄÊ±¼ä,ÔòÍË³ö.} }; } /* * ±¾º¯ÊýÔÚÖÐ¶Ïº¯ÊýÖÐµ÷ÓÃ£¬µÎ´ð¶¨Ê±Æ÷ÖÐ¶ÏÒ»´Îµ÷ÓÃÒ»´Î¡£ /void TimingDelayDecrement(void){if (TimingDelay != 0x00){ TimingDelay--; }}/ * TimingDelayÖµÔÚTimingDelayDecrementº¯ÊýÖÐµÝ¼õ /void DelayNms(uint32_t nTimes){TimingDelay = nTimes;while (TimingDelay!=0); //µÈ´ý¼ÆÊýÍ£Ö¹}/ //ÑÓÊ±nms//nms:ÒªÑÓÊ±µÄmsÊý//nms:0~65535void DelayNms(uint32_t nms){if(xTaskGetSchedulerState()!=taskSCHEDULER_NOT_STARTED)//ÏµÍ³ÒÑ¾ÔËÐÐ{if(nms>=fac_ms)//ÑÓÊ±µÄÊ±¼ä´óÓÚOSµÄ×îÉÙÊ±¼äÖÜÆÚ { vTaskDelay(nms/fac_ms); //FreeRTOSÑÓÊ±}nms%=fac_ms;//OSÒÑ¾ÎÞ·¨Ìá¹©ÕâÃ´Ð¡µÄÑÓÊ±ÁË,²ÉÓÃÆÕÍ¨·½Ê½ÑÓÊ± }DelayNus((uint32_t)(nms1000));//ÆÕÍ¨·½Ê½ÑÓÊ±} ///ÑÓÊ±nms,²»»áÒýÆðÈÎÎñµ÷¶È//nms:ÒªÑÓÊ±µÄmsÊývoid DelayXms(uint32_t nms){uint32_t i;for(i=0;i FreeRTOSConfig.h [C] 纯文本查看复制代码 /* FreeRTOS V9.0.0 - Copyright (C) 2016 Real Time Engineers Ltd. All rights reserved VISIT http://www.FreeRTOS.org TO ENSURE YOU ARE USING THE LATEST VERSION. This file is part of the FreeRTOS distribution. FreeRTOS is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License (version 2) as published by the Free Software Foundation >>>> AND MODIFIED BY <<<< the FreeRTOS exception. ************************************************************************* >>! NOTE: The modification to the GPL is included to allow you to !<< >>! distribute a combined work that includes FreeRTOS without being !<< >>! obliged to provide the source code for proprietary components !<< >>! outside of the FreeRTOS kernel. !<< *********************************************************************** FreeRTOS is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. Full license text is available on the following link: http://www.freertos.org/a00114.html ************************************************************************* * * * FreeRTOS provides completely free yet professionally developed, * * robust, strictly quality controlled, supported, and cross * * platform software that is more than just the market leader, it * * is the industry's de facto standard. * * * * Help yourself get started quickly while simultaneously helping * * to support the FreeRTOS project by purchasing a FreeRTOS * * tutorial book, reference manual, or both: * * http://www.FreeRTOS.org/Documentation * * * *************************************************************************** http://www.FreeRTOS.org/FAQHelp.html - Having a problem? Start by reading the FAQ page "My application does not run, what could be wrong?". Have you defined configASSERT()? http://www.FreeRTOS.org/support - In return for receiving this top quality embedded software for free we request you assist our global community by participating in the support forum. http://www.FreeRTOS.org/training - Investing in training allows your team to be as productive as possible as early as possible. Now you can receive FreeRTOS training directly from Richard Barry, CEO of Real Time Engineers Ltd, and the world's leading authority on the world's leading RTOS. http://www.FreeRTOS.org/plus - A selection of FreeRTOS ecosystem products, including FreeRTOS+Trace - an indispensable productivity tool, a DOS compatible FAT file system, and our tiny thread aware UDP/IP stack. http://www.FreeRTOS.org/labs - Where new FreeRTOS products go to incubate. Come and try FreeRTOS+TCP, our new open source TCP/IP stack for FreeRTOS. http://www.OpenRTOS.com - Real Time Engineers ltd. license FreeRTOS to High Integrity Systems ltd. to sell under the OpenRTOS brand. Low cost OpenRTOS licenses offer ticketed support, indemnification and commercial middleware. http://www.SafeRTOS.com - High Integrity Systems also provide a safety engineered and independently SIL3 certified version for use in safety and mission critical applications that require provable dependability. 1 tab == 4 spaces!/#ifndef FREERTOS_CONFIG_H#define FREERTOS_CONFIG_H#include "sys.h"//#include "usart.h"//Õë¶Ô²»Í¬µÄ±àÒëÆ÷µ÷ÓÃ²»Í¬µÄstdint.hÎÄ¼þ#if defined(__ICCARM__) \|\| defined(__CC_ARM) \|\| defined(__GNUC__) #include extern uint32_t SystemCoreClock;#endif/·ÀÖ¹printf±¨´í/#include "stdio.h"//¶ÏÑÔ#define vAssertCalled(char,int) printf("Error:%s,%drn",char,int)#define configASSERT(x) if((x)==0) vAssertCalled(__FILE__,__LINE__)/*************************************************************************************************************// FreeRTOS»ù´¡ÅäÖÃÅäÖÃÑ¡Ïî //************************************************************************************************************/#define configUSE_PREEMPTION 1 //1Ê¹ÓÃÇÀÕ¼Ê½ÄÚºË£¬0Ê¹ÓÃÐ³Ì#define configUSE_TIME_SLICING 1 //1Ê¹ÄÜÊ±¼äÆ¬µ÷¶È(Ä¬ÈÏÊ½Ê¹ÄÜµÄ)#define configUSE_PORT_OPTIMISED_TASK_SELECTION 1 //1ÆôÓÃÌØÊâ·½·¨À´Ñ¡ÔñÏÂÒ»¸öÒªÔËÐÐµÄÈÎÎñ //Ò»°ãÊÇÓ²¼þ¼ÆËãÇ°µ¼ÁãÖ¸Áî£¬Èç¹ûËùÊ¹ÓÃµÄ //MCUÃ»ÓÐÕâÐ©Ó²¼þÖ¸ÁîµÄ»°´ËºêÓ¦¸ÃÉèÖÃÎª0£¡#define configUSE_TICKLESS_IDLE 0 //1ÆôÓÃµÍ¹¦ºÄticklessÄ£Ê½#define configUSE_QUEUE_SETS 1 //Îª1Ê±ÆôÓÃ¶ÓÁÐ#define configCPU_CLOCK_HZ (SystemCoreClock) //CPUÆµÂÊ#define configTICK_RATE_HZ (1000) //Ê±ÖÓ½ÚÅÄÆµÂÊ£¬ÕâÀïÉèÖÃÎª1000£¬ÖÜÆÚ¾ÍÊÇ1ms#define configMAX_PRIORITIES (32) //¿ÉÊ¹ÓÃµÄ×î´óÓÅÏÈ¼¶#define configMINIMAL_STACK_SIZE ((unsigned short)130) //¿ÕÏÐÈÎÎñÊ¹ÓÃµÄ¶ÑÕ»´óÐ¡#define configMAX_TASK_NAME_LEN (16) //ÈÎÎñÃû×Ö×Ö·û´®³¤¶È#define configUSE_16_BIT_TICKS 0 //ÏµÍ³½ÚÅÄ¼ÆÊýÆ÷±äÁ¿Êý¾ÝÀàÐÍ£¬ //1±íÊ¾Îª16Î»ÎÞ·ûºÅÕûÐÎ£¬0±íÊ¾Îª32Î»ÎÞ·ûºÅÕûÐÎ#define configIDLE_SHOULD_YIELD 1 //Îª1Ê±¿ÕÏÐÈÎÎñ·ÅÆúCPUÊ¹ÓÃÈ¨¸øÆäËûÍ¬ÓÅÏÈ¼¶µÄÓÃ»§ÈÎÎñ#define configUSE_TASK_NOTIFICATIONS 1 //Îª1Ê±¿ªÆôÈÎÎñÍ¨Öª¹¦ÄÜ£¬Ä¬ÈÏ¿ªÆô#define configUSE_MUTEXES 1 //Îª1Ê±Ê¹ÓÃ»¥³âÐÅºÅÁ¿#define configQUEUE_REGISTRY_SIZE 8 //²»Îª0Ê±±íÊ¾ÆôÓÃ¶ÓÁÐ¼ÇÂ¼£¬¾ßÌåµÄÖµÊÇ¿ÉÒÔ //¼ÇÂ¼µÄ¶ÓÁÐºÍÐÅºÅÁ¿×î´óÊýÄ¿¡£#define configCHECK_FOR_STACK_OVERFLOW 0 //´óÓÚ0Ê±ÆôÓÃ¶ÑÕ»Òç³ö¼ì²â¹¦ÄÜ£¬Èç¹ûÊ¹ÓÃ´Ë¹¦ÄÜ //ÓÃ»§±ØÐëÌá¹©Ò»¸öÕ»Òç³ö¹³×Óº¯Êý£¬Èç¹ûÊ¹ÓÃµÄ»° //´ËÖµ¿ÉÒÔÎª1»òÕß2£¬ÒòÎªÓÐÁ½ÖÖÕ»Òç³ö¼ì²â·½·¨¡£#define configUSE_RECURSIVE_MUTEXES 1 //Îª1Ê±Ê¹ÓÃµÝ¹é»¥³âÐÅºÅÁ¿#define configUSE_MALLOC_FAILED_HOOK 0 //1Ê¹ÓÃÄÚ´æÉêÇëÊ§°Ü¹³×Óº¯Êý#define configUSE_APPLICATION_TASK_TAG 0 #define configUSE_COUNTING_SEMAPHORES 1 //Îª1Ê±Ê¹ÓÃ¼ÆÊýÐÅºÅÁ¿/************************************************************************************************************// FreeRTOSÓëÄÚ´æÉêÇëÓÐ¹ØÅäÖÃÑ¡Ïî //*************************************************************************************************************/#define configSUPPORT_DYNAMIC_ALLOCATION 1 //Ö§³Ö¶¯Ì¬ÄÚ´æÉêÇë#define configTOTAL_HEAP_SIZE ((size_t)(201024)) //ÏµÍ³ËùÓÐ×ÜµÄ¶Ñ´óÐ¡/**************************************************************************************************************// FreeRTOSÓë¹³×Óº¯ÊýÓÐ¹ØµÄÅäÖÃÑ¡Ïî //************************************************************************************************************/#define configUSE_IDLE_HOOK 0 //1£¬Ê¹ÓÃ¿ÕÏÐ¹³×Ó£»0£¬²»Ê¹ÓÃ#define configUSE_TICK_HOOK 0 //1£¬Ê¹ÓÃÊ±¼äÆ¬¹³×Ó£»0£¬²»Ê¹ÓÃ/************************************************************************************************************// FreeRTOSÓëÔËÐÐÊ±¼äºÍÈÎÎñ×´Ì¬ÊÕ¼¯ÓÐ¹ØµÄÅäÖÃÑ¡Ïî //************************************************************************************************************/#define configGENERATE_RUN_TIME_STATS 0 //Îª1Ê±ÆôÓÃÔËÐÐÊ±¼äÍ³¼Æ¹¦ÄÜ#define configUSE_TRACE_FACILITY 1 //Îª1ÆôÓÃ¿ÉÊÓ»¯¸ú×Ùµ÷ÊÔ#define configUSE_STATS_FORMATTING_FUNCTIONS 1 //ÓëºêconfigUSE_TRACE_FACILITYÍ¬Ê±Îª1Ê±»á±àÒëÏÂÃæ3¸öº¯Êý //prvWriteNameToBuffer(),vTaskList(), //vTaskGetRunTimeStats() /************************************************************************************************************// FreeRTOSÓëÐ³ÌÓÐ¹ØµÄÅäÖÃÑ¡Ïî //************************************************************************************************************/#define configUSE_CO_ROUTINES 0 //Îª1Ê±ÆôÓÃÐ³Ì£¬ÆôÓÃÐ³ÌÒÔºó±ØÐëÌí¼ÓÎÄ¼þcroutine.c#define configMAX_CO_ROUTINE_PRIORITIES ( 2 ) //Ð³ÌµÄÓÐÐ§ÓÅÏÈ¼¶ÊýÄ¿/************************************************************************************************************// FreeRTOSÓëÈí¼þ¶¨Ê±Æ÷ÓÐ¹ØµÄÅäÖÃÑ¡Ïî //*************************************************************************************************************/#define configUSE_TIMERS 1 //Îª1Ê±ÆôÓÃÈí¼þ¶¨Ê±Æ÷#define configTIMER_TASK_PRIORITY (configMAX_PRIORITIES-1) //Èí¼þ¶¨Ê±Æ÷ÓÅÏÈ¼¶#define configTIMER_QUEUE_LENGTH 5 //Èí¼þ¶¨Ê±Æ÷¶ÓÁÐ³¤¶È#define configTIMER_TASK_STACK_DEPTH (configMINIMAL_STACK_SIZE2) //Èí¼þ¶¨Ê±Æ÷ÈÎÎñ¶ÑÕ»´óÐ¡/**************************************************************************************************************// FreeRTOS¿ÉÑ¡º¯ÊýÅäÖÃÑ¡Ïî //************************************************************************************************************/#define INCLUDE_xTaskGetSchedulerState 1 #define INCLUDE_vTaskPrioritySet 1#define INCLUDE_uxTaskPriorityGet 1#define INCLUDE_vTaskDelete 1#define INCLUDE_vTaskCleanUpResources 1#define INCLUDE_vTaskSuspend 1#define INCLUDE_vTaskDelayUntil 1#define INCLUDE_vTaskDelay 1#define INCLUDE_eTaskGetState 1#define INCLUDE_xTimerPendFunctionCall 1/************************************************************************************************************// FreeRTOSÓëÖÐ¶ÏÓÐ¹ØµÄÅäÖÃÑ¡Ïî //************************************************************************************************************/#ifdef __NVIC_PRIO_BITS#define configPRIO_BITS __NVIC_PRIO_BITS#else#define configPRIO_BITS 4 #endif#define configLIBRARY_LOWEST_INTERRUPT_PRIORITY 15 //ÖÐ¶Ï×îµÍÓÅÏÈ¼¶#define configLIBRARY_MAX_SYSCALL_INTERRUPT_PRIORITY5 //ÏµÍ³¿É¹ÜÀíµÄ×î¸ßÖÐ¶ÏÓÅÏÈ¼¶#define configKERNEL_INTERRUPT_PRIORITY ( configLIBRARY_LOWEST_INTERRUPT_PRIORITY << (8 - configPRIO_BITS) )#define configMAX_SYSCALL_INTERRUPT_PRIORITY ( configLIBRARY_MAX_SYSCALL_INTERRUPT_PRIORITY << (8 - configPRIO_BITS) )/************************************************************************************************************// FreeRTOSÓëÖÐ¶Ï·þÎñº¯ÊýÓÐ¹ØµÄÅäÖÃÑ¡Ïî //*************************************************************************************************************/#define xPortPendSVHandler PendSV_Handler#define vPortSVCHandler SVC_Handler#endif / FREERTOS_CONFIG_H */ 0
2020-6-15 05:14:59　　评论淘帖0 邀请回答您可以邀请以下用户，快速回答问题 × heks 该类别下有 16 个回答。邀请回答 ChristineGu 该类别下有 16 个回答。邀请回答 HengDu 该类别下有 16 个回答。邀请回答 yonglanzhang 该类别下有 15 个回答。邀请回答 dfasda 该类别下有 15 个回答。邀请回答 nhonglan 该类别下有 15 个回答。邀请回答 wenminglang 该类别下有 14 个回答。邀请回答 C880U 该类别下有 14 个回答。邀请回答 jhdfvs 该类别下有 14 个回答。邀请回答 chm5 该类别下有 14 个回答。邀请回答 muwersddg 该类别下有 14 个回答。邀请回答杀狼000 该类别下有 14 个回答。邀请回答飞雪9366 该类别下有 13 个回答。邀请回答 billbian 该类别下有 13 个回答。邀请回答 a732538 该类别下有 13 个回答。邀请回答 hrtuoyu 该类别下有 13 个回答。邀请回答 hfgdzc 该类别下有 13 个回答。邀请回答 thyysbk 该类别下有 13 个回答。邀请回答凡人wlj 该类别下有 13 个回答。邀请回答 kszdj113 该类别下有 13 个回答。邀请回答举报崔琳相关推荐 • 这图是怎么回事，和案例的颜色不一样 3480 • mega328 PWM两个管脚的参数是一样的，但是波形却不一样是为什么? 298 • 为什么同一种封装的器件的3D视图不一样？ 3497 • freeRtos和裸机跑同样一个程序，效率不一样 6976 • 抄板的两个相同的板卡，运放出来的噪声不一样是怎么回事呢？运放用的不同的运放，电源噪声相同。 3577 • 数据类型不一样和接口怎么解决 2815 • 请问keil5代码一样但运行结果不一样是怎么回事？ 7229 • MSP430+OV7670初始化读到的期间ID和数据手册上的不一样 3505 • 为什么我的泪滴不一样 2337 • RT_Thread的算法和uCosIII的调度算法一样吗？ 1467 4个回答

答案对人有帮助，有参考价值 0 麻烦直接用示波器测试！！！不要看MDK的这啥软件仿真

2020-6-15 16:09:35 评论举报周倩

答案对人有帮助，有参考价值 0 不知道为什么延时不一样，但是波形是一样的。也不知道用代码的格式，为什么汉字成乱码了。请高手帮忙看看，谢谢。

2020-6-15 16:17:04 评论举报王苑苑