操作系统课程设计报告书.docx

1、操作系统课程设计报告书操作系统课程设计报告实验1一、实验描述实验1有13个任务(包括 COS-II 的空闲任务)。COS-II 增加了两个内部任务：空闲任务和一个计算CPU利用率的任务。实验一1建立了11个其它任务。TaskStart()任务是在函数main()中建立的；它的功能是建立其它任务并且在屏幕上显示如下统计信息： 每秒钟任务切换次数； CPU利用百分率； 寄存器切换次数； 目前日期和时间； COS-II的版本号；TaskStart()还检查是否按下ESC键，以决定是否返回到DOS。其余10个任务基于相同的代码Task();每个任务在屏幕上随机的位置显示一个0到9的数字。二、问题分析1

2、、功能分析在屏幕上显示如下统计信息： 每秒钟任务切换次数； CPU利用百分率； 寄存器切换次数； 目前日期和时间； COS-II的版本号；在屏幕上随机的位置显示一个0到9的数字。2、数据对象分析 在屏幕随机位置显示09的数字3、代码设计Includes文件中#include 0 *#define OS_MAX_FLAGS 5 * Max. number of Event Flag Groups in your application . * * . MUST be 0 *#define OS_MAX_MEM_PART 5 * Max. number of memory partitions .

3、 * * . MUST be 0 *#define OS_MAX_QS 2 * Max. number of queue control blocks in your application . * * . MUST be 0 *#define OS_MAX_TASKS 11 * Max. number of tasks in your application . * * . MUST be = 2 *#define OS_LOWEST_PRIO 12 * Defines the lowest priority that can be assigned . * * . MUST NEVER b

4、e 63! *#define OS_TASK_IDLE_STK_SIZE 512 * Idle task stack size (# of OS_STK wide entries) *#define OS_TASK_STAT_EN 1 * Enable (1) or Disable(0) the statistics task *#define OS_TASK_STAT_STK_SIZE 512 * Statistics task stack size (# of OS_STK wide entries) *#define OS_ARG_CHK_EN 1 * Enable (1) or Dis

5、able (0) argument checking *#define OS_CPU_HOOKS_EN 1 * uCOS-II the processor port files * * - EVENT FLAGS - *#define OS_FLAG_EN 1 * Enable (1) or Disable (0) code generation for EVENT FLAGS *#define OS_FLAG_WAIT_CLR_EN 1 * Include code for Wait on Clear EVENT FLAGS *#define OS_FLAG_ACCEPT_EN 1 * In

6、clude code for OSFlagAccept() *#define OS_FLAG_DEL_EN 1 * Include code for OSFlagDel() *#define OS_FLAG_QUERY_EN 1 * Include code for OSFlagQuery() * * - MESSAGE MAILBOXES - *#define OS_MBOX_EN 1 * Enable (1) or Disable (0) code generation for MAILBOXES *#define OS_MBOX_ACCEPT_EN 1 * Include code fo

7、r OSMboxAccept() *#define OS_MBOX_DEL_EN 1 * Include code for OSMboxDel() *#define OS_MBOX_POST_EN 1 * Include code for OSMboxPost() *#define OS_MBOX_POST_OPT_EN 1 * Include code for OSMboxPostOpt() *#define OS_MBOX_QUERY_EN 1 * Include code for OSMboxQuery() * * - MEMORY MANAGEMENT - *#define OS_ME

8、M_EN 1 * Enable (1) or Disable (0) code generation for MEMORY MANAGER *#define OS_MEM_QUERY_EN 1 * Include code for OSMemQuery() * * - MUTUAL EXCLUSION SEMAPHORES - *#define OS_MUTEX_EN 1 * Enable (1) or Disable (0) code generation for MUTEX *#define OS_MUTEX_ACCEPT_EN 1 * Include code for OSMutexAc

9、cept() *#define OS_MUTEX_DEL_EN 1 * Include code for OSMutexDel() *#define OS_MUTEX_QUERY_EN 1 * Include code for OSMutexQuery() * * - MESSAGE QUEUES - *#define OS_Q_EN 1 * Enable (1) or Disable (0) code generation for QUEUES *#define OS_Q_ACCEPT_EN 1 * Include code for OSQAccept() *#define OS_Q_DEL

10、_EN 1 * Include code for OSQDel() *#define OS_Q_FLUSH_EN 1 * Include code for OSQFlush() *#define OS_Q_POST_EN 1 * Include code for OSQPost() *#define OS_Q_POST_FRONT_EN 1 * Include code for OSQPostFront() *#define OS_Q_POST_OPT_EN 1 * Include code for OSQPostOpt() *#define OS_Q_QUERY_EN 1 * Include

11、 code for OSQQuery() * * - SEMAPHORES - *#define OS_SEM_EN 1 * Enable (1) or Disable (0) code generation for SEMAPHORES *#define OS_SEM_ACCEPT_EN 1 * Include code for OSSemAccept() *#define OS_SEM_DEL_EN 1 * Include code for OSSemDel() *#define OS_SEM_QUERY_EN 1 * Include code for OSSemQuery() * * -

12、 TASK MANAGEMENT - *#define OS_TASK_CHANGE_PRIO_EN 1 * Include code for OSTaskChangePrio() *#define OS_TASK_CREATE_EN 1 * Include code for OSTaskCreate() *#define OS_TASK_CREATE_EXT_EN 1 * Include code for OSTaskCreateExt() *#define OS_TASK_DEL_EN 1 * Include code for OSTaskDel() *#define OS_TASK_SU

13、SPEND_EN 1 * Include code for OSTaskSuspend() and OSTaskResume() *#define OS_TASK_QUERY_EN 1 * Include code for OSTaskQuery() * * - TIME MANAGEMENT - *#define OS_TIME_DLY_HMSM_EN 1 * Include code for OSTimeDlyHMSM() *#define OS_TIME_DLY_RESUME_EN 1 * Include code for OSTimeDlyResume() *#define OS_TI

14、ME_GET_SET_EN 1 * Include code for OSTimeGet() and OSTimeSet() * * - MISCELLANEOUS - *#define OS_SCHED_LOCK_EN 1 * Include code for OSSchedLock() and OSSchedUnlock() *#define OS_TICKS_PER_SEC 200 * Set the number of ticks in one second *typedef INT16U OS_FLAGS; * Date type for event flag bits (8, 16

15、 or 32 bits) *Test1文件中#includeincludes. prototypes of tasks * void TaskStart(void *data); * Function prototypes of Startup task *static void TaskStartCreateTasks(void);static void TaskStartDispInit(void);Static void TaskStartDisp(void);*$PAGE*void main (void) PC_DispClrScr(DISP_FGND_WHITE + DISP_BGN

16、D_BLACK); * Clear the screen * OSInit(); * Initialize uCOS-II *PC_DOSSaveReturn(); * Save environment to return to DOS * PC_VectSet(uCOS, OSCtxSw); * Install uCOS-IIs context switch vector * RandomSem = OSSemCreate(1); * Random number semaphore * OSTaskCreate(TaskStart, (void *)0, &TaskStartStkTASK_

17、STK_SIZE - 1, 0); OSStart(); * Start multitasking *void TaskStart (void *pdata)#if OS_CRITICAL_METHOD = 3 * Allocate storage for CPU status register * OS_CPU_SR cpu_sr;#endif char s100;INT16S key; pdata = pdata; * Prevent compiler warning * TaskStartDispInit(); * Initialize the display *OS_ENTER_CRI

18、TICAL(); PC_VectSet(0x08, OSTickISR); * Install uCOS-IIs clock tick ISR * PC_SetTickRate(OS_TICKS_PER_SEC); * Reprogram tick rate * OS_EXIT_CRITICAL(); OSStatInit(); * Initialize uCOS-IIs statistics * TaskStartCreateTasks(); * Create all the application tasks * for (;) TaskStartDisp(); * Update the

19、display * if (PC_GetKey(&key) = TRUE) * See if key pressed * if (key = 0x1B) * Yes, see if its the ESCAPE key * PC_DOSReturn(); * Return to DOS * OSCtxSwCtr = 0; * Clear context switch counter * OSTimeDlyHMSM(0, 0, 1, 0); * Wait one second * *$PAGE*static void TaskStartDispInit (void)* 1111111111222

20、222222233333333334444444444555555555566666666667777777777 * 01234567890123456789012345678901234567890123456789012345678901234567890123456789 * PC_DispStr( 0, 0, uCOS-II, The Real-Time Kernel , DISP_FGND_WHITE + DISP_BGND_RED + DISP_BLINK); PC_DispStr( 0, 1, Jean J. Labrosse , DISP_FGND_BLACK + DISP_

21、BGND_LIGHT_GRAY); PC_DispStr( 0, 2, , DISP_FGND_BLACK + DISP_BGND_LIGHT_GRAY); PC_DispStr( 0, 3, EXAMPLE #1 , 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_FG

22、ND_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, , DISP_FGND_BLACK + DISP_BGND_LIGHT_GRAY); PC_DispStr( 0, 11, ,

23、DISP_FGND_BLACK + DISP_BGND_LIGHT_GRAY); PC_DispStr( 0, 12, , 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(

24、 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); P

25、C_DispStr( 0, 21, , DISP_FGND_BLACK + DISP_BGND_LIGHT_GRAY); PC_DispStr( 0, 22, #Tasks : CPU Usage: % , DISP_FGND_BLACK + DISP_BGND_LIGHT_GRAY); PC_DispStr( 0, 23, #Task switchsec: , DISP_FGND_BLACK + DISP_BGND_LIGHT_GRAY); PC_DispStr( 0, 24, , DISP_FGND_BLACK + DISP_BGND_LIGHT_GRAY + DISP_BLINK);*

26、1111111111222222222233333333334444444444555555555566666666667777777777 * 01234567890123456789012345678901234567890123456789012345678901234567890123456789 *$PAGE* UPDATE THE DISPLAY*static void TaskStartDisp (void) char s80; sprintf(s, %5d, OSTaskCtr); * Display #tasks running * PC_DispStr(18, 22, s,

27、 DISP_FGND_YELLOW + DISP_BGND_BLUE);#if OS_TASK_STAT_EN 0 sprintf(s, %3d, OSCPUUsage); * Display CPU usage in % * PC_DispStr(36, 22, s, DISP_FGND_YELLOW + DISP_BGND_BLUE);#endif sprintf(s, %5d, OSCtxSwCtr); * Display #context switches per second * PC_DispStr(18, 23, s, DISP_FGND_YELLOW + DISP_BGND_B

28、LUE); sprintf(s, V%1d.%02d, OSVersion() 100, OSVersion() % 100); * Display uCOS-IIs version number * PC_DispStr(75, 24, s, DISP_FGND_YELLOW + DISP_BGND_BLUE); switch (_8087) * Display whether FPU present * case 0: PC_DispStr(71, 22, NO FPU , DISP_FGND_YELLOW + DISP_BGND_BLUE); break; case 1: PC_DispStr(71, 22, 8087 FPU, DISP_FGND_YELLOW + DISP_BGND_BLUE); break; case 2: PC_DispStr(71, 22, 80287 FPU, DISP_FGND_YELLOW + DISP_BGND_BLUE); break; case 3: PC_DispStr(71, 22, 80387 FPU, DISP_FGND_YELLOW + DISP_BGND_BLUE); break; *$PAGE* CREATE TASKS*