app-o.c

在IAR EWARM开发环境下的ucos_2操作系统在LPC2200上的应用

*********************************************************************************************************
*                                      App_EventCreate()
*
* Description :  Create the application events.
*
* Argument(s) :  none.
*
* Return(s)   :  none.
*********************************************************************************************************
*/

static  void  App_EventCreate (void)
{
#if (APP_CFG_LCD_EN == DEF_ENABLED)
    App_UserIF_Mbox = OSMboxCreate((void *)0);                  /* Create MBOX for communication between Kbd and UserIF     */
#if (OS_EVENT_NAME_SIZE > 12)
    OSEventNameSet(App_UserIF_Mbox, (CPU_CHAR *)"User IF Mbox)
#endif   
#endif
    
    
}

/*
*********************************************************************************************************
*                                    App_TaskKbd()
*
* Description : Monitor the state of the push buttons and passes messages to AppTaskUserIF()
*
* Argument(s) : p_arg       Argument passed to 'App_TaskKbd()' by 'OSTaskCreate()'.
*
* Return(s)   : none.
*
* Note(s)     : (1) The first line of code is used to prevent a compiler warning because 'p_arg' is not
*                   used.  The compiler should not generate any code for this statement.
*********************************************************************************************************
*/

#if (APP_CFG_LCD_EN == DEF_ENABLED)
static  void  App_TaskKbd (void *p_arg)
{
    CPU_BOOLEAN  b1;                                            /* State of Push Button #1                        */
    CPU_BOOLEAN  b1_prev;
    CPU_BOOLEAN  b2;                                            /* State of Push Button #2                        */
    CPU_BOOLEAN  b2_prev;
    CPU_BOOLEAN  b3;                                            /* State of Push Button #3                        */
    CPU_BOOLEAN  b3_prev;
    CPU_INT08U   lcd_scr;                                       /* LCD system state screen iD                     */

    (void)p_arg;

    lcd_scr = APP_LCD_SCR_FIRST;
    b1_prev = DEF_FALSE;
    b2_prev = DEF_FALSE;
    b3_prev = DEF_FALSE;

    while (DEF_TRUE) {

        b1 = BSP_PB_GetStatus(1);
        b2 = BSP_PB_GetStatus(2);
        b3 = BSP_PB_GetStatus(3);        

        if (b1 == DEF_TRUE && b1_prev == DEF_FALSE) {

            if (lcd_scr == APP_LCD_SCR_LAST) {
                lcd_scr = APP_LCD_SCR_FIRST;
            } else {
                lcd_scr++;
            }
            OSMboxPost(App_UserIF_Mbox, (void *)lcd_scr);
        }

        if (b2 == DEF_TRUE && b2_prev == DEF_FALSE) {
            BSP_LCD_LightOn();
        }

        if (b3 == DEF_TRUE && b3_prev == DEF_FALSE) {
            BSP_LCD_LightOff();
        }

        b1_prev = b1;
        b2_prev = b2;
        b3_prev = b3;

        OSTimeDlyHMSM(0, 0, 0, 150);
    }
}
#endif


/*
*********************************************************************************************************
*                                    App_TaskUserIF()
*
* Description : Updates LCD.
*
* Argument(s) : p_arg       Argument passed to 'App_TaskUserIF()' by 'OSTaskCreate()'.
*
* Return(s)   : none.
*
* Note(s)     : (1) The first line of code is used to prevent a compiler warning because 'p_arg' is not
*                   used.  The compiler should not generate any code for this statement.
*********************************************************************************************************
*/

#if (APP_CFG_LCD_EN == DEF_ENABLED)
static  void  App_TaskUserIF (void *p_arg)
{
    CPU_INT32U   pstate;
    CPU_INT32U   nstate;
    CPU_INT32U  *msg;
    CPU_INT08U   err;


    (void)p_arg;

    DispInit(2, 16);                                            /* Initialize the LCD module                            */
    BSP_LCD_LightOn();

    App_DispScr_SignOn();                                        /* Display 'sign on' message                            */
    OSTimeDlyHMSM(0, 0, 1, 0);
    pstate = APP_LCD_SCR_FIRST;
    nstate = APP_LCD_SCR_FIRST;

    
    while (DEF_TRUE) {                                          /* Task body, always written as an infinite loop.       */
        msg = (CPU_INT32U *)(OSMboxPend(App_UserIF_Mbox, OS_TICKS_PER_SEC / 3, &err));
        if (err == OS_NO_ERR) {
            pstate = (CPU_INT32U)msg;
        }

        if (pstate != nstate) {
            nstate = pstate;
            DispClrScr();
        }

        switch (pstate) {
            case APP_LCD_SCR_VER_TICK_RATE:
                 App_DispScr_VerTickRate();
                 break;

            case APP_LCD_SCR_CPU:
                 App_DispScr_CPU();
                 break;

            case APP_LCD_SCR_CTXSW:
                 App_DispScr_CtxSw();
                 break;

            case APP_LCD_SCR_BOARD_INFO:
                 App_DispScr_BoardInfo();
                 break;

            case APP_LCD_SCR_SIGN_ON:
            default:
                 App_DispScr_SignOn();
                 break;
        }
    }
}
#endif


/*
*********************************************************************************************************
*                                            DISPLAY SCREENS
*
* Descrition  :  Display one of the screens used in the demonstration.
*
* Argument(s) :  none.
*
* Return(s)   :  none.
*********************************************************************************************************
*/

#if (APP_CFG_LCD_EN == DEF_ENABLED)
static  void  App_DispScr_SignOn (void)
{
    Str_Copy(App_UserIFLine1, "Micrium uC/OS-II");
    Str_Copy(App_UserIFLine2, "IAR   LPC2103 SK");

    DispStr(0, 0, App_UserIFLine1);
    DispStr(1, 0, App_UserIFLine2);
}

static  void  App_DispScr_VerTickRate (void)
{
    CPU_INT32U  value;


    Str_Copy(App_UserIFLine1, "uC/OS-II:  Vx.yy");
    value = (CPU_INT32U)OSVersion();
    App_UserIFLine1[12] =  value / 100       + '0';
    App_UserIFLine1[14] = (value % 100) / 10 + '0';
    App_UserIFLine1[15] = (value %  10)      + '0';

    Str_Copy(App_UserIFLine2, "TickRate:   xxxx");
    value = (CPU_INT32U)OS_TICKS_PER_SEC;
    App_FormatDec(&App_UserIFLine2[12], value, 4);

    DispStr(0, 0, App_UserIFLine1);
    DispStr(1, 0, App_UserIFLine2);
}

static  void  App_DispScr_CPU (void)
{
    CPU_INT32U  value;


    Str_Copy(App_UserIFLine1, "CPU Usage:xx %  ");
    value                = (CPU_INT32U)OSCPUUsage;
    App_UserIFLine1[10]  = (value / 10) + '0';
    App_UserIFLine1[11]  = (value % 10) + '0';

    Str_Copy(App_UserIFLine2, "CPU Speed:xx MHz");
    value                = (CPU_INT32U)BSP_CPU_ClkFreq() / 1000000L;
    App_UserIFLine2[10]  = (value / 10) + '0';
    App_UserIFLine2[11]  = (value % 10) + '0';

    DispStr(0, 0, App_UserIFLine1);
    DispStr(1, 0, App_UserIFLine2);
}

static  void  App_DispScr_CtxSw (void)
{
    CPU_INT32U  value;


    Str_Copy(App_UserIFLine1, "#Ticks: xxxxxxxx");
    value = (CPU_INT32U)OSTime;
    App_FormatDec(&App_UserIFLine1[8], value, 8);

    Str_Copy(App_UserIFLine2, "#CtxSw: xxxxxxxx");
    value = (CPU_INT32U)OSCtxSwCtr;
    App_FormatDec(&App_UserIFLine2[8], value, 8);

    DispStr(0, 0, App_UserIFLine1);
    DispStr(1, 0, App_UserIFLine2);
}

static  void  App_DispScr_BoardInfo (void)
{
    CPU_BOOLEAN  b_state;
    
    Str_Copy(App_UserIFLine1, "-- PB STATE -- "); 
    Str_Copy(App_UserIFLine2, "B1: xxx B2: yyy"); 

    b_state = BSP_PB_GetStatus(2);
    if (b_state == DEF_TRUE) {
        App_UserIFLine2[4]= 'O';
        App_UserIFLine2[5]= 'N';
        App_UserIFLine2[6]= ' ';
    } else {
        App_UserIFLine2[4]= 'O';
        App_UserIFLine2[5]= 'F';
        App_UserIFLine2[6]= 'F';
    }
        
    b_state = BSP_PB_GetStatus(3);
    if (b_state == DEF_TRUE) {
        App_UserIFLine2[12]= 'O';
        App_UserIFLine2[13]= 'N';
        App_UserIFLine2[14]= ' ';
    } else  {
        App_UserIFLine2[12]= 'O';
        App_UserIFLine2[13]= 'F';
        App_UserIFLine2[14]= 'F';
    }

    DispStr(0, 0, App_UserIFLine1);
    DispStr(1, 0, App_UserIFLine2);
}
#endif

/*
*********************************************************************************************************
*                                         App_ProbeInit()
*
* Description : Initializes the uC/Probe and the OS plugin for uC/Probe.
*
* Argument(s) : none.
*
* Return(s)   : none.
*
*********************************************************************************************************
*/
                   
#if (APP_CFG_PROBE_COM_EN == DEF_ENABLED)
static  void  App_ProbeInit (void)
{
#if (APP_CFG_PROBE_OS_PLUGIN_EN == DEF_ENABLED)
    (void)App_ProbeCnts;
    (void)App_ProbeB1;
    (void)App_ProbeB2;
    (void)App_ProbeB3;

#if (PROBE_COM_STAT_EN == DEF_TRUE)