实验报告示例

实时操作系统实验报告专业：J通信0601学号：3061109015姓名:蔡智超指导老师：李峰实验二任务管理实验实验目的： 1.理解任务管理的基本原理，了解任务的各个基本状态及其变迁过程；2.掌握μC/OS-II中任务管理的基本方法（挂起、解挂）；3.熟练使用μC/OS-II任务管理的基本系统调用。实验要求与思路：为了体现任务的各个基本状态及其变迁过程，本实验设计了T0、T1和T3三个任务，它们交替运行，如图所示说明：在系统完成初始化后，可以先创建并启动优先级最低的TaskStart，由它创建其他3个应用任务T0、T1和T2，之后整个系统的运行流程如下：1）优先级最高的T0开始执行，之后T0挂起自己；2）然后系统调度选中T1开始执行，之后T1挂起自己；3）接着系统调度选中T2,之后唤醒T0；4）如此循环实验程序:**********************************************************************************************************uC/OS-II*TheReal-TimeKernel*EX#1TaskManagement*********************************************************************************************************#include"includes.h"**********************************************************************************************************CONSTANTS*********************************************************************************************************#defineTASK_STK_SIZE512/*Sizeofeachtask'sstacks(#ofWORDs)*/#defineN_TASKS2/*Numberofidenticaltasks*VARIABLES**********************************************************************************************************/OS_STKTaskStk[N_TASKS][TASK_STK_SIZE];/*TasksstacksOS_STKTaskStartStk[TASK_STK_SIZE];/*TaskStarttaskstackINT8UTaskData[N_TASKS];/*Parameterstopasstoeachtask/**FUNCTIONPROTOTYPES**********************************************************************************************************/voidTask0(void*pdata);/*Functionprototypesoftasks*/voidTask1(void*pdata);voidTask2(void*pdata);voidTaskStart(void*pdata);/*FunctionprototypesofStartuptask*/staticvoidTaskStartCreateTasks(void);/*Functionprototypesofcreattask*/staticvoidTaskStartDispInit(void);/*FunctionprototypesofInitializationthedisplay*//*$PAGE*/*MAIN**********************************************************************************************************/voidmain(void){PC_DispClrScr(DISP_FGND_WHITE+DISP_BGND_BLACK);/*Clearthescreen*/OSInit();/*InitializeuC/OS-II*/PC_DOSSaveReturn();/*SaveenvironmenttoreturntoDOS*/PC_VectSet(uCOS,OSCtxSw);/*InstalluC/OS-II'scontextswitchvector*///创建初始任务OSTaskCreate(TaskStart,(void*)0,&TaskStartStk[TASK_STK_SIZE-1],4);OSStart();/*Startmultitasking*/}/***********************************************************************************************************STARTUPTASK**********************************************************************************************************/voidTaskStart(void*pdata){#ifOS_CRITICAL_METHOD==3/*AllocatestorageforCPUstatusregister*/OS_CPU_SRcpu_sr;#endifINT16Skey;pdata=pdata;/*Preventcompilerwarning*/TaskStartDispInit();/*Initializethedisplay*/OS_ENTER_CRITICAL();PC_VectSet(0x08,OSTickISR);/*InstalluC/OS-II'sclocktickISR*/PC_SetTickRate(OS_TICKS_PER_SEC);/*Reprogramtickrate*/OS_EXIT_CRITICAL();OSStatInit();/*InitializeuC/OS-II'sstatistics*/TaskStartCreateTasks();/*Createalltheapplicationtasks*/for(;;){ if(PC_GetKey(&key)==TRUE){/*Seeifkeyhasbeenpressed*/ if(key==0x1B){/*Yes,seeifit'stheESCAPEkey*/ PC_DOSReturn();/*ReturntoDOS*/ } } OSCtxSwCtr=0;/*Clearcontextswitchcounter*/ OSTimeDlyHMSM(0,0,1,0);/*Waitonesecond*/}}/*$PAGE*//***********************************************************************************************************INITIALIZETHEDISPLAY**********************************************************************************************************/staticvoidTaskStartDispInit(void){/*1111111111222222222233333333334444444444555555555566666666667777777777*//*01234567890123456789012345678901234567890123456789012345678901234567890123456789*/ PC_DispStr(0,0,"uC/OS-II,TheReal-TimeKernel",DISP_FGND_WHITE+DISP_BGND_RED+DISP_BLINK); PC_DispStr(0,1,"",DISP_FGND_BLACK+DISP_BGND_LIGHT_GRAY); PC_DispStr(0,2,"",DISP_FGND_BLACK+DISP_BGND_LIGHT_GRAY); PC_DispStr(0,3,"EXAMPLE#1TaskManagement",DISP_FGND_BLACK+DISP_BGND_LIGHT_GRAY); PC_DispStr(0,4,"",DISP_FGND_BLACK+DISP_BGND_LIGHT_GRAY); PC_DispStr(0,5,"",DISP_FGND_BLACK+DISP_BGND_LIGHT_GRAY); PC_DispStr(0,6,"",DISP_FGND_BLACK+DISP_BGND_LIGHT_GRAY); PC_DispStr(0,7,"",DISP_FGND_BLACK+DISP_BGND_LIGHT_GRAY); PC_DispStr(0,8,"",DISP_FGND_BLACK+DISP_BGND_LIGHT_GRAY); PC_DispStr(0,9,"",DISP_FGND_BLACK+DISP_BGND_LIGHT_GRAY); PC_DispStr(0,10,"Task0():",DISP_FGND_BLACK+DISP_BGND_LIGHT_GRAY); PC_DispStr(0,11,"Task1():",DISP_FGND_BLACK+DISP_BGND_LIGHT_GRAY); PC_DispStr(0,12,"Task2():",DISP_FGND_BLACK+DISP_BGND_LIGHT_GRAY); PC_DispStr(0,13,"",DISP_FGND_BLACK+DISP_BGND_LIGHT_GRAY); PC_DispStr(0,14,"",DISP_FGND_BLACK+DISP_BGND_LIGHT_GRAY); PC_DispStr(0,15,"",DISP_FGND_BLACK+DISP_BGND_LIGHT_GRAY); PC_DispStr(0,16,"",DISP_FGND_BLACK+DISP_BGND_LIGHT_GRAY); PC_DispStr(0,17,"",DISP_FGND_BLACK+DISP_BGND_LIGHT_GRAY); PC_DispStr(0,18,"",DISP_FGND_BLACK+DISP_BGND_LIGHT_GRAY); PC_DispStr(0,19,"",DISP_FGND_BLACK+DISP_BGND_LIGHT_GRAY); PC_DispStr(0,20,"",DISP_FGND_BLACK+DISP_BGND_LIGHT_GRAY); PC_DispStr(0,21,"",DISP_FGND_BLACK+DISP_BGND_LIGHT_GRAY); PC_DispStr(0,22,"",DISP_FGND_BLACK+DISP_BGND_LIGHT_GRAY); PC_DispStr(0,23,"",DISP_FGND_BLACK+DISP_BGND_LIGHT_GRAY); PC_DispStr(0,24,"<-PRESS'ESC'TOQUIT->",DISP_FGND_BLACK+DISP_BGND_LIGHT_GRAY+DISP_BLINK);/*1111111111222222222233333333334444444444555555555566666666667777777777*//*01234567890123456789012345678901234567890123456789012345678901234567890123456789*/}/*$PAGE*//***********************************************************************************************************CREATETASKS**********************************************************************************************************/staticvoidTaskStartCreateTasks(void){INT8Ui;INT8Uerr; for(i=0;i<N_TASKS;i++){/*Createtasks*/ TaskData[i]=i;/*Eachtaskwilldisplayitsowninformation*/ } OSTaskCreate(Task0,(void*)&TaskData[0],&TaskStk[0][TASK_STK_SIZE-1],5); OSTaskCreate(Task1,(void*)&TaskData[1],&TaskStk[1][TASK_STK_SIZE-1],6); OSTaskCreate(Task2,(void*)&TaskData[2],&TaskStk[2][TASK_STK_SIZE-1],7); err=OSTaskSuspend(6);/*确保每个任务运行时其他任务被挂起 err=OSTaskSuspend(7);}/*$PAGE*//***********************************************************************************************************TASK#0**Description:Thistaskissuspendedbyitself,thenitwillberesumedbyothertasks.**********************************************************************************************************/voidTask0(void*pdata){ INT8Ui; INT8Uerr; i=*(int*)pdata; for(;;){ PC_DispStr(14,10,"task0isrunning.",DISP_FGND_BLACK+DISP_BGND_LIGHT_GRAY); PC_DispStr(14,11,"task1issuspended.",DISP_FGND_BLACK+DISP_BGND_LIGHT_GRAY);PC_DispStr(14,12,"task2issuspended.",DISP_FGND_BLACK+DISP_BGND_LIGHT_GRAY); OSTimeDly(200); err=OSTaskResume(6); err=OSTaskSuspend(5);/*suspenditself*/ }}/*$PAGE*//***********************************************************************************************************TASK#1*Description:Thistaskresumetask0*/voidTask1(void*pdata){ INT8Ui; INT8Uerr; i=*(int*)pdata; for(;;){ OSTimeDly(200); PC_DispStr(14,10,"task0issuspended.",DISP_FGND_BLACK+DISP_BGND_LIGHT_GRAY); PC_DispStr(14,11,"task1isrunning.",DISP_FGND_BLACK+DISP_BGND_LIGHT_GRAY);PC_DispSt