main.c

ucOS 在单片机上实现

        case 1:
             OS_ENTER_CRITICAL();
             P_IO.PDR3.BIT.B1 = 1;                         /* Turn ON USR #1 LED                       */
             OS_EXIT_CRITICAL();
             break;

        case 2:
             OS_ENTER_CRITICAL();
             P_IO.PDR3.BIT.B2 = 1;                         /* Turn ON USR #2 LED                       */
             OS_EXIT_CRITICAL();
             break;
    }
}


void  LED_Off (INT8U led)
{
#if OS_CRITICAL_METHOD == 3                                /* Allocate storage for CPU status register */
    OS_CPU_SR  cpu_sr;
#endif


    switch (led) {
        case 1:
             OS_ENTER_CRITICAL();
             P_IO.PDR3.BIT.B1 = 0;                         /* Turn OFF USR #1 LED                      */
             OS_EXIT_CRITICAL();
             break;

        case 2:
             OS_ENTER_CRITICAL();
             P_IO.PDR3.BIT.B2 = 0;                         /* Turn OFF USR #2 LED                      */
             OS_EXIT_CRITICAL();
             break;
    }
}


void  LED_Toggle (INT8U led)
{
#if OS_CRITICAL_METHOD == 3                                /* Allocate storage for CPU status register */
    OS_CPU_SR  cpu_sr;
#endif


    switch (led) {
        case 1:
             OS_ENTER_CRITICAL();
             P_IO.PDR3.BIT.B1 ^= 1;                        /* Toggle USR #1 LED                        */
             OS_EXIT_CRITICAL();
             break;

        case 2:
             OS_ENTER_CRITICAL();
             P_IO.PDR3.BIT.B2 ^= 1;                        /* Toggle USR #2 LED                        */
             OS_EXIT_CRITICAL();
             break;
    }
}

/*
*********************************************************************************************************
*                                       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_CPU_HOOKS_EN == 0
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_CPU_HOOKS_EN == 0
void  OSInitHookEnd (void)
{
}
#endif

/*$PAGE*/
/*
*********************************************************************************************************
*                                          TASK CREATION HOOK
*
* Description: This function is called when a task is created.
*
* Arguments  : ptcb   is a pointer to the task control block of the task being created.
*
* Note(s)    : 1) Interrupts are disabled during this call.
*********************************************************************************************************
*/
#if OS_CPU_HOOKS_EN == 0
void  OSTaskCreateHook (OS_TCB *ptcb)
{
    ptcb = ptcb;                       /* Prevent compiler warning                                     */
}
#endif


/*
*********************************************************************************************************
*                                           TASK DELETION HOOK
*
* Description: This function is called when a task is deleted.
*
* Arguments  : ptcb   is a pointer to the task control block of the task being deleted.
*
* Note(s)    : 1) Interrupts are disabled during this call.
*********************************************************************************************************
*/
#if OS_CPU_HOOKS_EN == 0
void  OSTaskDelHook (OS_TCB *ptcb)
{
    ptcb = ptcb;                       /* Prevent compiler warning                                     */
}
#endif

/*
*********************************************************************************************************
*                                             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_CPU_HOOKS_EN == 0
void  OSTaskIdleHook (void)
{
}
#endif

/*
*********************************************************************************************************
*                                           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
*********************************************************************************************************
*/
#if OS_CPU_HOOKS_EN == 0
void  OSTaskStatHook (void)
{
    LED_Toggle(1);                                         /* Toggle USR1 LED                          */
}
#endif

/*$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).
*********************************************************************************************************
*/
#if OS_CPU_HOOKS_EN == 0
void  OSTaskSwHook (void)
{
}
#endif

/*
*********************************************************************************************************
*                                           OS_TCBInit() HOOK
*
* Description: This function is called by OS_TCBInit() 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_CPU_HOOKS_EN == 0
void  OSTCBInitHook (OS_TCB *ptcb)
{
    ptcb = ptcb;                                           /* Prevent Compiler warning                 */
}
#endif


/*
*********************************************************************************************************
*                                               TICK HOOK
*
* Description: This function is called every tick.
*
* Arguments  : none
*
* Note(s)    : 1) Interrupts may or may not be ENABLED during this call.
*********************************************************************************************************
*/
#if OS_CPU_HOOKS_EN == 0
void  OSTimeTickHook (void)
{
    Tmr_ISRClr();                                          /* Clear the interrupt source               */
}
#endif