test.c

此源码为UCOS在WIN32环境下的移植版本

   *                                             CREATE TASKS
   *********************************************************************************************************
 */

static void TaskStartCreateTasks(void)
{   OSTaskCreateExt(TaskClk,
                    (void *) 0,
                    &TaskClkStk[TASK_STK_SIZE - 1],
                    TASK_CLK_PRIO,
                    TASK_CLK_ID,
                    &TaskClkStk[0],
                    TASK_STK_SIZE,
                    (void *) 0,
                    OS_TASK_OPT_STK_CHK | OS_TASK_OPT_STK_CLR);

    OSTaskCreateExt(Task1,
                    (void *) 0,
                    &Task1Stk[TASK_STK_SIZE - 1],
                    TASK_1_PRIO,
                    TASK_1_ID,
                    &Task1Stk[0],
                    TASK_STK_SIZE,
                    (void *) 0,
                    OS_TASK_OPT_STK_CHK | OS_TASK_OPT_STK_CLR);

    OSTaskCreateExt(Task2,
                    (void *) 0,
                    &Task2Stk[TASK_STK_SIZE - 1],
                    TASK_2_PRIO,
                    TASK_2_ID,
                    &Task2Stk[0],
                    TASK_STK_SIZE,
                    (void *) 0,
                    OS_TASK_OPT_STK_CHK | OS_TASK_OPT_STK_CLR);

    OSTaskCreateExt(Task3,
                    (void *) 0,
                    &Task3Stk[TASK_STK_SIZE - 1],
                    TASK_3_PRIO,
                    TASK_3_ID,
                    &Task3Stk[0],
                    TASK_STK_SIZE,
                    (void *) 0,
                    OS_TASK_OPT_STK_CHK | OS_TASK_OPT_STK_CLR);

    OSTaskCreateExt(Task4,
                    (void *) 0,
                    &Task4Stk[TASK_STK_SIZE - 1],
                    TASK_4_PRIO,
                    TASK_4_ID,
                    &Task4Stk[0],
                    TASK_STK_SIZE,
                    (void *) 0,
                    OS_TASK_OPT_STK_CHK | OS_TASK_OPT_STK_CLR);

    OSTaskCreateExt(Task5,
                    (void *) 0,
                    &Task5Stk[TASK_STK_SIZE - 1],
                    TASK_5_PRIO,
                    TASK_5_ID,
                    &Task5Stk[0],
                    TASK_STK_SIZE,
                    (void *) 0,
                    OS_TASK_OPT_STK_CHK | OS_TASK_OPT_STK_CLR);
}

/*$PAGE*/
/*
   *********************************************************************************************************
   *                                               TASK #1
   *
   * Description: This task executes every 100 mS and measures the time it task to perform stack checking
   *              for each of the 5 application tasks.  Also, this task displays the statistics related to
   *              each task's stack usage.
   *********************************************************************************************************
 */

void Task1(void *pdata)
{   INT8U err;
    OS_STK_DATA data;                                           // Storage for task stack data
    INT32U time;                                                // Execution time (in uS)
    INT8U i;
    char s[80];


    pdata = pdata;
    for (;;)
    {   for (i = 0; i < 7; i++)
        {   PC_ElapsedStart(0);
            err = OSTaskStkChk((INT8U) (TASK_START_PRIO + i), &data);
            time = PC_ElapsedStop(0);
            if (err == OS_NO_ERR)
            {   sprintf(s, "%4ld        %4ld        %4ld        %6d",
                        data.OSFree + data.OSUsed,
                        data.OSFree,
                        data.OSUsed,
                        time);
                PC_DispStr(19, (INT8U) (12 + i), s, DISP_FGND_BLACK + DISP_BGND_LIGHT_GRAY);
            }
        }
        OSTimeDlyHMSM(0, 0, 0, 100);                            // Delay for 100 mS
    }
}
/*$PAGE*/
/*
   *********************************************************************************************************
   *                                               TASK #2
   *
   * Description: This task displays a clockwise rotating wheel on the screen.
   *********************************************************************************************************
 */

void Task2(void *data)
{   data = data;
    for (;;)
    {   PC_DispChar(70, 15, '|', DISP_FGND_YELLOW + DISP_BGND_BLUE);
        OSTimeDly(10);
        PC_DispChar(70, 15, '/', DISP_FGND_YELLOW + DISP_BGND_BLUE);
        OSTimeDly(10);
        PC_DispChar(70, 15, '-', DISP_FGND_YELLOW + DISP_BGND_BLUE);
        OSTimeDly(10);
        PC_DispChar(70, 15, '\\', DISP_FGND_YELLOW + DISP_BGND_BLUE);
        OSTimeDly(10);
    }
}
/*$PAGE*/
/*
   *********************************************************************************************************
   *                                               TASK #3
   *
   * Description: This task displays a counter-clockwise rotating wheel on the screen.
   *
   * Note(s)    : I allocated 500 bytes of storage on the stack to artificially 'eat' up stack space.
   *********************************************************************************************************
 */

void Task3(void *data)
{   char dummy[500];
    INT16U i;


    data = data;
    for (i = 0; i < 499; i++)
    {                                                           // Use up the stack with 'junk'
        dummy[i] = '?';
    }
    for (;;)
    {   PC_DispChar(70, 16, '|', DISP_FGND_YELLOW + DISP_BGND_BLUE);
        OSTimeDly(20);
        PC_DispChar(70, 16, '\\', DISP_FGND_YELLOW + DISP_BGND_BLUE);
        OSTimeDly(20);
        PC_DispChar(70, 16, '-', DISP_FGND_YELLOW + DISP_BGND_BLUE);
        OSTimeDly(20);
        PC_DispChar(70, 16, '/', DISP_FGND_YELLOW + DISP_BGND_BLUE);
        OSTimeDly(20);
    }
}
/*$PAGE*/
/*
   *********************************************************************************************************
   *                                               TASK #4
   *
   * Description: This task sends a message to Task #5.  The message consist of a character that needs to
   *              be displayed by Task #5.  This task then waits for an acknowledgement from Task #5
   *              indicating that the message has been displayed.
   *********************************************************************************************************
 */

void Task4(void *data)
{   char txmsg;
    INT8U err;


    data = data;
    txmsg = 'A';
    for (;;)
    {   OSMboxPost(TxMbox, (void *) &txmsg);                    // Send message to Task #5
        OSMboxPend(AckMbox, 0, &err);                           // Wait for acknowledgement from Task #5
        txmsg++;                                                // Next message to send
        if (txmsg == 'Z')
        {   txmsg = 'A';                                        // Start new series of messages
        }
    }
}
/*$PAGE*/
/*
   *********************************************************************************************************
   *                                               TASK #5
   *
   * Description: This task displays messages sent by Task #4.  When the message is displayed, Task #5
   *              acknowledges Task #4.
   *********************************************************************************************************
 */

void Task5(void *data)
{   char *rxmsg;
    INT8U err;


    data = data;
    for (;;)
    {   rxmsg = (char *) OSMboxPend(TxMbox, 0, &err);           // Wait for message from Task #4
        PC_DispChar(70, 18, *rxmsg, DISP_FGND_YELLOW + DISP_BGND_BLUE);
        OSTimeDlyHMSM(0, 0, 1, 0);                              // Wait 1 second
        OSMboxPost(AckMbox, (void *) 1);                        // Acknowledge reception of msg
    }
}
/*$PAGE*/
/*
   *********************************************************************************************************
   *                                               CLOCK TASK
   *********************************************************************************************************
 */

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


    data = data;
    for (;;)
    {   PC_GetDateTime(s);
        PC_DispStr(60, 22, s, DISP_FGND_YELLOW + DISP_BGND_BLUE);
        OSTimeDly(OS_TICKS_PER_SEC);
    }
}