app.c

AT91SAM7SE,ucos移植范例

    status_last_joystick = JOYSTICK_NONE;

    LED_Off(0);                                                 /* Turn OFF all the LEDs                                    */

    while (DEF_TRUE) {                                          /* Task body, always written as an infinite loop.           */
        status = PB_GetStatus(1);
        if (status == DEF_TRUE) {
            if (status_last_pb0 == 0) {
                status_last_pb0 = 1;
                LED_Toggle(1);
            }
        } else {
            status_last_pb0 = 0;
        }

        status = PB_GetStatus(2);
        if (status == DEF_TRUE) {
            if (status_last_pb1 == 0) {
                status_last_pb1 = 1;
                LED_Toggle(2);
            }
        } else {
            status_last_pb1 = 0;
        }

        status_joystick = Joystick_GetStatus();
        if (status_joystick != status_last_joystick) {
            switch (status_joystick) {
                case JOYSTICK_NONE:
                     break;
                case JOYSTICK_LEFT:
                     LED_On(1);
                     break;
                case JOYSTICK_RIGHT:
                     LED_On(2);
                     break;
                case JOYSTICK_UP:
                     LED_On(0);
                     break;
                case JOYSTICK_DOWN:
                     LED_Off(0);
                     break;
            }
            status_last_joystick = status_joystick;
        }

        OSTimeDlyHMSM(0, 0, 0, 50);
    }
}


/*
*********************************************************************************************************
*                                          AppTerminalRx()
*
* Description : Callback function for uC/OS-View
*
* Argument(s) : rx_data     The received data.
*
* Return(s)   : none.
*********************************************************************************************************
*/

#if (OS_VIEW_MODULE > 0)
static  void  AppTerminalRx (CPU_INT08U rx_data)
{

}
#endif


/*
*********************************************************************************************************
*********************************************************************************************************
**                                         uC/OS-II APP HOOKS
*********************************************************************************************************
*********************************************************************************************************
*/

#if (OS_APP_HOOKS_EN > 0)
/*
*********************************************************************************************************
*                                      TASK CREATION HOOK (APPLICATION)
*
* Description : This function is called when a task is created.
*
* Argument(s) : ptcb   is a pointer to the task control block of the task being created.
*
* Note(s)     : (1) Interrupts are disabled during this call.
*********************************************************************************************************
*/

void  App_TaskCreateHook (OS_TCB *ptcb)
{
#if (OS_VIEW_MODULE > 0)
    OSView_TaskCreateHook(ptcb);
#endif
}

/*
*********************************************************************************************************
*                                    TASK DELETION HOOK (APPLICATION)
*
* Description : This function is called when a task is deleted.
*
* Argument(s) : ptcb   is a pointer to the task control block of the task being deleted.
*
* Note(s)     : (1) Interrupts are disabled during this call.
*********************************************************************************************************
*/

void  App_TaskDelHook (OS_TCB *ptcb)
{
    (void)ptcb;
}

/*
*********************************************************************************************************
*                                      IDLE TASK HOOK (APPLICATION)
*
* Description : This function is called by OSTaskIdleHook(), which 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.
*
* Argument(s) : none.
*
* Note(s)     : (1) Interrupts are enabled during this call.
*********************************************************************************************************
*/

#if OS_VERSION >= 251
void  App_TaskIdleHook (void)
{
}
#endif

/*
*********************************************************************************************************
*                                        STATISTIC TASK HOOK (APPLICATION)
*
* Description : This function is called by OSTaskStatHook(), which is called every second by uC/OS-II's
*               statistics task.  This allows your application to add functionality to the statistics task.
*
* Argument(s) : none.
*********************************************************************************************************
*/

void  App_TaskStatHook (void)
{
}

/*
*********************************************************************************************************
*                                        TASK SWITCH HOOK (APPLICATION)
*
* Description : This function is called when a task switch is performed.  This allows you to perform other
*               operations during a context switch.
*
* Argument(s) : 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).
*********************************************************************************************************
*/

#if OS_TASK_SW_HOOK_EN > 0
void  App_TaskSwHook (void)
{
#if (OS_VIEW_MODULE > 0)
    OSView_TaskSwHook();
#endif
}
#endif

/*
*********************************************************************************************************
*                                     OS_TCBInit() HOOK (APPLICATION)
*
* Description : This function is called by OSTCBInitHook(), which is called by OS_TCBInit() after setting
*               up most of the TCB.
*
* Argument(s) : 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 >= 204
void  App_TCBInitHook (OS_TCB *ptcb)
{
    (void)ptcb;
}
#endif

/*
*********************************************************************************************************
*                                        TICK HOOK (APPLICATION)
*
* Description : This function is called every tick.
*
* Argument(s) : none.
*
* Note(s)     : (1) Interrupts may or may not be ENABLED during this call.
*********************************************************************************************************
*/

#if OS_TIME_TICK_HOOK_EN > 0
void  App_TimeTickHook (void)
{
#if (OS_VIEW_MODULE > 0)
    OSView_TickHook();
#endif
}
#endif
#endif