edf.c

请各位加入,保证此EDF一定可用.因为我就是用它交成绩的

/*
*********************************************************************************************************
*                                                uC/OS-II
*                                          The Real-Time Kernel
*
*                          (c) Copyright 1992-2002, Jean J. Labrosse, Weston, FL
*                                           All Rights Reserved
*
*                                               EXAMPLE #3
*********************************************************************************************************
*/

#include "includes.h"

/*
*********************************************************************************************************
*                                              CONSTANTS
*********************************************************************************************************
*/

#define          TASK_STK_SIZE     1024                /* Size of each task's stacks (# of WORDs)       */

#define          TASK_START_ID       0                /* Application tasks                             */
#define          TASK_EDF_ID         1
#define          TASK_1_ID           2
#define          TASK_2_ID           3
#define          TASK_3_ID           4


#define          TASK_START_PRIO    10                /* Application tasks priorities                  */
#define          TASK_EDF_PRIO      11
#define          TASK_1_PRIO        20
#define          TASK_2_PRIO        21
#define          TASK_3_PRIO        22

#define          N_TASK              5

#define          MSG_QUEUE_SIZE     2                /* Size of message queue used in example         */

/*
*********************************************************************************************************
*                                             DATA TYPES
*********************************************************************************************************
*/

typedef struct {
    char    TaskName[30];
    INT16U  TaskCtr;
    INT16U  TaskExecTime;
    INT32U  TaskTotExecTime;
} TASK_USER_DATA;

/*
*********************************************************************************************************
*                                              VARIABLES
*********************************************************************************************************
*/

OS_STK          TaskStartStk[TASK_STK_SIZE];          /* Startup    task stack                         */
OS_STK          TaskEdfStk[TASK_STK_SIZE];            /* Clock      task stack                         */
OS_STK          Task1Stk[TASK_STK_SIZE];              /* Task #1    task stack                         */
OS_STK          Task2Stk[TASK_STK_SIZE];              /* Task #2    task stack                         */
OS_STK          Task3Stk[TASK_STK_SIZE];              /* Task #3    task stack                         */


TASK_USER_DATA  TaskUserData[N_TASK];

OS_EVENT        *CommMbox;
INT8U           CommRxBuf[1];
INT8U           lock[3],check;
INT8U           display1,display2,display3,display4;


/*
*********************************************************************************************************
*                                         FUNCTION PROTOTYPES
*********************************************************************************************************
*/

        void  TaskStart(void *data);                  /* Function prototypes of tasks                  */
static  void  TaskStartCreateTasks(void);
static  void  TaskStartDispInit(void);
static  void  TaskStartDisp(void);
        void  TaskEdf(void *data);
        void  Task1(void *data);
        void  Task2(void *data);
        void  Task3(void *data);
        void  DispTaskStat(INT8U id);

/*$PAGE*/
/*
*********************************************************************************************************
*                                                  MAIN
*********************************************************************************************************
*/

void  main (void)
{
    PC_DispClrScr(DISP_BGND_BLACK);                        /* Clear the screen                         */

    OSInit();                                              /* Initialize uC/OS-II                      */

    PC_DOSSaveReturn();                                    /* Save environment to return to DOS        */

    PC_VectSet(uCOS, OSCtxSw);                             /* Install uC/OS-II's context switch vector */

    PC_ElapsedInit();                                      /* Initialized elapsed time measurement     */

    strcpy(TaskUserData[TASK_START_ID].TaskName, "StartTask");
    OSTaskCreateExt(TaskStart,
                    (void *)0,
                    &TaskStartStk[TASK_STK_SIZE - 1],
                    TASK_START_PRIO,
                    TASK_START_ID,
                    &TaskStartStk[0],
                    TASK_STK_SIZE,
                    &TaskUserData[TASK_START_ID],
                    0);
    OSStart();                                             /* Start multitasking                       */
}

/*$PAGE*/
/*
*********************************************************************************************************
*                                               STARTUP TASK
*********************************************************************************************************
*/

void  TaskStart (void *pdata)
{
#if OS_CRITICAL_METHOD == 3                                /* Allocate storage for CPU status register */
    OS_CPU_SR  cpu_sr;
#endif
    INT16S     key;
    INT8U err;
  

    pdata = pdata;                                         /* Prevent compiler warning                 */

    TaskStartDispInit();                                   /* Setup the display                        */

    OS_ENTER_CRITICAL();                                   /* Install uC/OS-II's clock tick ISR        */
    PC_VectSet(0x08, OSTickISR);
    PC_SetTickRate(OS_TICKS_PER_SEC);                      /* Reprogram tick rate                      */
    OS_EXIT_CRITICAL();

    OSStatInit();                                          /* Initialize uC/OS-II's statistics         */

    CommMbox=OSMboxCreate((void *) 0);                     /* Create a mail box                        */

    TaskStartCreateTasks();

	display1=0;
    display2=0;
	display3=0;
	display4=0;
	
    err=OSTaskSuspend(TASK_1_PRIO);
    err=OSTaskSuspend(TASK_2_PRIO);
    err=OSTaskSuspend(TASK_3_PRIO);  
	err=OSTaskChangePrio(62,15);
	err=OSTaskChangePrio(OS_PRIO_SELF,60);
    
	for (;;) {

        OSTaskDel(OS_PRIO_SELF);
		OSTimeDly(OS_TICKS_PER_SEC);                       /* Wait one second                          */
    }
}
/*$PAGE*/
/*
*********************************************************************************************************
*                                      CREATE APPLICATION TASKS
*********************************************************************************************************
*/

void  TaskStartCreateTasks (void)
{
    strcpy(TaskUserData[TASK_EDF_ID].TaskName, "Edf Task");
    OSTaskCreateExt(TaskEdf,
                    (void *)0,
                    &TaskEdfStk[TASK_STK_SIZE - 1],
                    TASK_EDF_PRIO,
                    TASK_EDF_ID,
                    &TaskEdfStk[0],
                    TASK_STK_SIZE,
                    &TaskUserData[TASK_EDF_ID],
                    0);

 	strcpy(TaskUserData[TASK_1_ID].TaskName, "Task #1");
    OSTaskCreateExt(Task1,
                    (void *)0,
                    &Task1Stk[TASK_STK_SIZE - 1],
                    TASK_1_PRIO,
                    TASK_1_ID,
                    &Task1Stk[0],
                    TASK_STK_SIZE,
                    &TaskUserData[TASK_1_ID],
                    0);

    strcpy(TaskUserData[TASK_2_ID].TaskName, "Task #2");
    OSTaskCreateExt(Task2,
                    (void *)0,
                    &Task2Stk[TASK_STK_SIZE - 1],
                    TASK_2_PRIO,
                    TASK_2_ID,
                    &Task2Stk[0],
                    TASK_STK_SIZE,
                    &TaskUserData[TASK_2_ID],
                    0);

    strcpy(TaskUserData[TASK_3_ID].TaskName, "Task #3");
    OSTaskCreateExt(Task3,
                    (void *)0,
                    &Task3Stk[TASK_STK_SIZE - 1],
                    TASK_3_PRIO,
                    TASK_3_ID,
                    &Task3Stk[0],
                    TASK_STK_SIZE,
                    &TaskUserData[TASK_3_ID],
                    0); 


}
/*$PAGE*/
/*
*********************************************************************************************************
*                                        INITIALIZE THE DISPLAY
*********************************************************************************************************
*/

static  void  TaskStartDispInit (void)
{
/*                                1111111111222222222233333333334444444444555555555566666666667777777777 */
/*                      01234567890123456789012345678901234567890123456789012345678901234567890123456789 */
    PC_DispStr( 0,  0, "                         uC/OS-II, The Real-Time Kernel                         ", DISP_FGND_WHITE + DISP_BGND_RED + DISP_BLINK);
    PC_DispStr( 0,  1, "                                Jean J. Labrosse                                ", DISP_FGND_BLACK + DISP_BGND_LIGHT_GRAY);
    PC_DispStr( 0,  2, "                                                                                ", DISP_FGND_BLACK + DISP_BGND_LIGHT_GRAY);
    PC_DispStr( 0,  3, "                                    EXAMPLE #3                                  ", 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, "Task Name         Counter  Exec.Time(uS)   Tot.Exec.Time(uS)  %Tot.             ", DISP_FGND_BLACK + DISP_BGND_LIGHT_GRAY);
    PC_DispStr( 0, 10, "----------------- -------  -------------   -----------------  -----             ", DISP_FGND_BLACK + DISP_BGND_LIGHT_GRAY);
    PC_DispStr( 0, 11, "                                                                                ", 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( 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, "#Tasks          :        CPU Usage:     %                                       ", DISP_FGND_BLACK + DISP_BGND_LIGHT_GRAY);
    PC_DispStr( 0, 23, "#Task switch/sec:                                                               ", DISP_FGND_BLACK + DISP_BGND_LIGHT_GRAY);
    PC_DispStr( 0, 24, "                            <-PRESS 'ESC' TO QUIT->                             ", DISP_FGND_BLACK + DISP_BGND_LIGHT_GRAY + DISP_BLINK);
/*                                1111111111222222222233333333334444444444555555555566666666667777777777 */
/*                      01234567890123456789012345678901234567890123456789012345678901234567890123456789 */
}

/*$PAGE*/
/*
*********************************************************************************************************
*                                           UPDATE THE DISPLAY
*********************************************************************************************************
*/

static  void  TaskStartDisp (void)
{
    char   s[80];


    sprintf(s, "%5d", OSTaskCtr);                                  /* Display #tasks running               */
    PC_DispStr(18, 22, s, 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_BLUE);

    sprintf(s, "V%1d.%02d", OSVersion() / 100, OSVersion() % 100); /* Display uC/OS-II's 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*/
/*
*********************************************************************************************************
*                                               TASK
*********************************************************************************************************
*/

void  Task1 (void *pdata)
{
    char    s[10];
	char  *msg;
	INT8U  err;
    INT16S     key;

    pdata = pdata;
    for (;;) {
	            lock[0]=0;
                while(lock[0]==0){
	            }
				
    			if(display1<80){
	             sprintf(s, "%1d>1 ",check);                                  /* Display ISR running                    */
                 PC_DispStr(display1, 21, s, DISP_FGND_YELLOW + DISP_BGND_BLUE); 
				 display1=display1+4;
		         }
		        else{
		         display1=0;
	             sprintf(s, "%1d>1 ",check);                                  /* Display ISR running                    */
                 PC_DispStr(display1, 21, s, DISP_FGND_YELLOW + DISP_BGND_BLUE);
                 display1=display1+4;				 
		        } 
								
    }
}


void  Task2 (void *pdata)
{
    char    s[10];
	char  *msg;
	INT8U  err;
    INT16S     key;

    pdata = pdata;
    for (;;) {
		        lock[1]=0;
                while(lock[1]==0){
	            }         
     			if(display1<80){
	             sprintf(s, "%1d>2  ",check);                                  /* Display ISR running                    */
                 PC_DispStr(display1, 21, s, DISP_FGND_YELLOW + DISP_BGND_BLUE); 
				 display1=display1+4;
		         }
		        else{
		         display1=0;
	             sprintf(s, "%1d>2  ",check);                                  /* Display ISR running                    */
                 PC_DispStr(display1, 21, s, DISP_FGND_YELLOW + DISP_BGND_BLUE);
                 display1=display1+4;				 
		        } 
    
    }
}


void  Task3 (void *pdata)
{
    char    s[10];
	char  *msg;
	INT8U  err;
    INT16S     key;

    pdata = pdata;
    for (;;) {
    		    lock[2]=0;
                while(lock[2]==0){
	            } 
				if(display1<80){
	             sprintf(s, "%1d>3 ",check);                                  /* Display ISR running                    */
                 PC_DispStr(display1, 21, s, DISP_FGND_YELLOW + DISP_BGND_BLUE); 
				 display1=display1+4;
		         }
		        else{
		         display1=0;
	             sprintf(s, "%1d>3  ",check);                                  /* Display ISR running                    */
                 PC_DispStr(display1, 21, s, DISP_FGND_YELLOW + DISP_BGND_BLUE);	
                 display1=display1+4;				 
		        }       
    }