test.c

第3章－μCOS-II基础实验 3.2－GPIO实验 3.3－时器实验 3.4－PWM实验 3.5－RTC实验 3.6－信号量使用

*                                               TASK #3
*
* Description: This task waits for up to 250 mS for a message sent by task #1.
*********************************************************************************************************
*/

void  Task3 (void *data)
{
    INT8U *msg;
    INT8U  err;


    data = data;
    for (;;) {
        msg = (INT8U *)OSQPend(MsgQueue, OS_TICKS_PER_SEC / 4, &err);  /* Wait up to 250 mS for a msg  */
        if (err == OS_TIMEOUT) {
            PC_DispChar(70, 15, 'T',  DISP_FGND_YELLOW + DISP_BGND_RED);
        } else {
            PC_DispChar(70, 15, *msg, DISP_FGND_YELLOW + DISP_BGND_BLUE);
        }
    }
}

/*
*********************************************************************************************************
*                                               TASK #4
*
* Description: This task posts a message to a mailbox and then immediately reads the message.
*********************************************************************************************************
*/

void  Task4 (void *data)
{
    OS_EVENT *mbox;
    INT8U     err;


    data = data;
    mbox = OSMboxCreate((void *)0);
    for (;;) {
        OSMboxPost(mbox, (void *)1);             /* Send message to mailbox                            */
        OSMboxPend(mbox, 0, &err);               /* Get message from mailbox                           */
        OSTimeDlyHMSM(0, 0, 0, 10);              /* Delay 10 mS                                        */
    }
}
/*$PAGE*/
/*
*********************************************************************************************************
*                                               TASK #5
*
* Description: This task simply delays itself.  We basically want to determine how long OSTimeDly() takes
*              to execute.
*********************************************************************************************************
*/

void  Task5 (void *data)
{
    data = data;
    for (;;) {
        OSTimeDly(1);
    }
}

/*
*********************************************************************************************************
*                                      DISPLAY TASK RELATED STATISTICS
*********************************************************************************************************
*/

void DispTaskStat (INT8U id)
{
    char s[80];


    sprintf(s, "%-18s %05u      %5u          %10ld",
            TaskUserData[id].TaskName,
            TaskUserData[id].TaskCtr,
            TaskUserData[id].TaskExecTime,
            TaskUserData[id].TaskTotExecTime);
    PC_DispStr(0, id + 11, s, DISP_FGND_LIGHT_GRAY);
}
/*$PAGE*/
/*
*********************************************************************************************************
*                                               CLOCK TASK
*********************************************************************************************************
*/

void  TaskClk (void *data)
{
    char  s[40];


    data = data;
    for (;;) {
        PC_GetDateTime(s);
        PC_DispStr(0, 24, s, DISP_FGND_BLUE + DISP_BGND_CYAN);
        OSTimeDlyHMSM(0, 0, 0, 100);             /* Execute every 100 mS                               */
    }
}
/*$PAGE*/
/*
*********************************************************************************************************
*                                       OS INITIALIZATION HOOK
*                                            (BEGINNING)
*
* Description: This function is called by OSInit() at the beginning of OSInit().
*
* Arguments  : none
*
* Note(s)    : 1) Interrupts should be disabled during this call.
*********************************************************************************************************
*/
#if OS_VERSION > 203
void OSInitHookBegin (void)
{
}
#endif


/*
*********************************************************************************************************
*                                       OS INITIALIZATION HOOK
*                                               (END)
*
* Description: This function is called by OSInit() at the end of OSInit().
*
* Arguments  : none
*
* Note(s)    : 1) Interrupts should be disabled during this call.
*********************************************************************************************************
*/
#if OS_VERSION > 203
void OSInitHookEnd (void)
{
}
#endif

/*
*********************************************************************************************************
*                                           TASK CREATION HOOK
*
* Description: This function is called when a task is created.
*
* Arguments  : ptcb    is a pointer to the task being created.
*
* Note(s)    : 1) Interrupts are disabled during this call.
*********************************************************************************************************
*/
void OSTaskCreateHook (OS_TCB *ptcb)
{
    ptcb = ptcb;                       /* Prevent compiler warning                                     */
}


/*
*********************************************************************************************************
*                                           TASK DELETION HOOK
*
* Description: This function is called when a task is deleted.
*
* Arguments  : ptcb    is a pointer to the task being created.
*
* Note(s)    : 1) Interrupts are disabled during this call.
*********************************************************************************************************
*/
void OSTaskDelHook (OS_TCB *ptcb)
{
    ptcb = ptcb;                       /* Prevent compiler warning                                     */
}
/*$PAGE*/
/*
*********************************************************************************************************
*                                           TASK SWITCH HOOK
*
* Description: This function is called when a task switch is performed.  This allows you to perform other
*              operations during a context switch.
*
* Arguments  : none
*
* Note(s)    : 1) Interrupts are disabled during this call.
*              2) It is assumed that the global pointer 'OSTCBHighRdy' points to the TCB of the task that
*                 will be 'switched in' (i.e. the highest priority task) and, 'OSTCBCur' points to the task
*                 being switched out (i.e. the preempted task).
*********************************************************************************************************
*/
void OSTaskSwHook (void)
{
    INT16U          time;
    TASK_USER_DATA *puser;


    time  = PC_ElapsedStop();                    /* This task is done                                  */
    PC_ElapsedStart();                           /* Start for next task                                */
    puser = OSTCBCur->OSTCBExtPtr;               /* Point to used data                                 */
    if (puser != (void *)0) {
        puser->TaskCtr++;                        /* Increment task counter                             */
        puser->TaskExecTime     = time;          /* Update the task's execution time                   */
        puser->TaskTotExecTime += time;          /* Update the task's total execution time             */
    }
}

/*
*********************************************************************************************************
*                                          STATISTIC TASK HOOK
*
* Description: This function is called every second by uC/OS-II's statistics task.  This allows your
*              application to add functionality to the statistics task.
*
* Arguments  : none
*********************************************************************************************************
*/
void OSTaskStatHook (void)
{
    char   s[80];
    INT8U  i;
    INT32U total;
    INT8U  pct;


    total = 0L;                                          /* Totalize TOT. EXEC. TIME for each task */
    for (i = 0; i < 7; i++) {
        total += TaskUserData[i].TaskTotExecTime;
        DispTaskStat(i);                                 /* Display task data                      */
    }
    if (total > 0) {
        for (i = 0; i < 7; i++) {                        /* Derive percentage of each task         */
            pct = 100 * TaskUserData[i].TaskTotExecTime / total;
            sprintf(s, "%3d %%", pct);
            PC_DispStr(62, i + 11, s, DISP_FGND_YELLOW);
        }
    }
    if (total > 1000000000L) {                           /* Reset total time counters at 1 billion */
        for (i = 0; i < 7; i++) {
            TaskUserData[i].TaskTotExecTime = 0L;
        }
    }
}
/*$PAGE*/
/*
*********************************************************************************************************
*                                                TICK HOOK
*
* Description: This function is called every tick.
*
* Arguments  : none
*
* Note(s)    : 1) Interrupts may or may not be are ENABLED during this call.
*********************************************************************************************************
*/
void OSTimeTickHook (void)
{
}


/*
*********************************************************************************************************
*                                           OSTCBInit() HOOK
*
* Description: This function is called by OSTCBInit() after setting up most of the TCB.
*
* Arguments  : ptcb    is a pointer to the TCB of the task being created.
*
* Note(s)    : 1) Interrupts may or may not be ENABLED during this call.
*********************************************************************************************************
*/
#if OS_VERSION > 203
void OSTCBInitHook (OS_TCB *ptcb)
{
    ptcb = ptcb;                                           /* Prevent Compiler warning                 */
}


/*
*********************************************************************************************************
*                                             IDLE TASK HOOK
*
* Description: This function is called by the idle task.  This hook has been added to allow you to do  
*              such things as STOP the CPU to conserve power.
*
* Arguments  : none
*
* Note(s)    : 1) Interrupts are enabled during this call.
*********************************************************************************************************
*/
#if OS_VERSION >= 205
void OSTaskIdleHook (void)
{
}
#endif
#endif