app.c

基于PIC24 UCOS-II 2.83源程序下载

/*
*********************************************************************************************************
*                                               uC/OS-II
*                                         The Real-Time Kernel
*
*                             (c) Copyright 1998-2005, Micrium, Weston, FL
*                                          All Rights Reserved
*
*
*                                      Microchip Application Code
*
* File : APP.C
* By   : Eric Shufo
*********************************************************************************************************
*/

#include <includes.h>

/*
*********************************************************************************************************
*                                                CONSTANTS
*********************************************************************************************************
*/

/*
*********************************************************************************************************
*                                                VARIABLES
*********************************************************************************************************
*/

OS_STK        AppStartTaskStk[APP_TASK_START_STK_SIZE];

/*
*********************************************************************************************************
*                                            FUNCTION PROTOTYPES
*********************************************************************************************************
*/

static  void  AppStartTask(void *p_arg);

#if OS_VIEW_MODULE > 0
static  void  AppTerminalRx(INT8U rx_data);
#endif

/*
*********************************************************************************************************
*                                                main()
*
* Description : This is the standard entry point for C code.  It is assumed that your code will call
*               main() once you have performed all necessary 68HC12 and C initialization.
* Arguments   : none
*********************************************************************************************************
*/

INT16S  main (void)
{
    INT8U  err;


    BSP_IntDisAll();                                                    /* Disable all interrupts until we are ready to accept them */

    OSInit();                                                           /* Initialize "uC/OS-II, The Real-Time Kernel"              */

    OSTaskCreateExt(AppStartTask,
                    (void *)0,
                    (OS_STK *)&AppStartTaskStk[0],
                    APP_TASK_START_PRIO,
                    APP_TASK_START_PRIO,
                    (OS_STK *)&AppStartTaskStk[APP_TASK_START_STK_SIZE-1],
                    APP_TASK_START_STK_SIZE,
                    (void *)0,
                    OS_TASK_OPT_STK_CHK | OS_TASK_OPT_STK_CLR);

#if OS_TASK_NAME_SIZE > 11
    OSTaskNameSet(APP_TASK_START_PRIO, "Start Task", &err);
#endif

    OSStart();                                                          /* Start multitasking (i.e. give control to uC/OS-II)       */

	return (-1);                                                        /* Return an error - This line of code is unreachable       */
}

/*$PAGE*/
/*
*********************************************************************************************************
*                                          STARTUP TASK
*
* Description : This is an example of a startup task.  As mentioned in the book's text, you MUST
*               initialize the ticker only once multitasking has started.
* Arguments   : p_arg   is the argument passed to 'AppStartTask()' by 'OSTaskCreate()'.
* Notes       : 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.
*               2) Interrupts are enabled once the task start because the I-bit of the CCR register was
*                  set to 0 by 'OSTaskCreate()'.
*********************************************************************************************************
*/

static  void  AppStartTask (void *p_arg)
{
	INT8U i;
	INT8U j;
	INT8U m,n;

   (void)p_arg;

    BSP_Init();                                                         /* Initialize BSP functions                                 */

#if OS_TASK_STAT_EN > 0
    OSStatInit();                                                       /* Determine CPU capacity                                   */
#endif

#if OS_VIEW_MODULE > 0
    OSView_Init();
    OSView_TerminalRxSetCallback(AppTerminalRx);
    OSView_RxIntEn();                                                   /* Enable Rx Interrupts                                     */
#endif

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

    while (TRUE) {                                                      /* Task body, always written as an infinite loop.           */
        for (i = 0; i < 4; i++) {                                       /* Sweep right then left 4 times                            */    
    		for (j = 1; j <= 8; j++) {			                        /* Scroll the LEDs to the right	                            */
    			LED_On(j);
				for( m = 0; m < 0xFF; m++)
					for( n = 0; n < 0xFF; n++) {}						/* add for increase cpu load								*/
    			OSTimeDlyHMSM(0, 0, 0, 25);                             /* Delay 25ms                                               */
    			LED_Off(j);
    		} 	
    
    		for (j = 7; j >= 2; j--) {                                  /* Scroll the LEDs to the left 	                            */
    			LED_On(j);
				for( m = 0; m < 0xFF; m++)								/* add for increase cpu load								*/
					for( n = 0; n < 0xFF; n++) {}
    			OSTimeDlyHMSM(0, 0, 0, 25);
    			LED_Off(j);
    		}
        }

		for (i = 0; i < 4; i++) {                                       /* Blink all 8 LEDs 4 times                                 */
			LED_On(0);
				for( m = 0; m < 0xFF; m++)
					for( n = 0; n < 0xFF; n++) {}						/* add for increase cpu load								*/
			OSTimeDlyHMSM(0, 0, 0, 25);
			LED_Off(0);
				for( m = 0; m < 0xFF; m++)
					for( n = 0; n < 0xFF; n++) {}						/* add for increase cpu load								*/
			OSTimeDlyHMSM(0, 0, 0, 25);			
		}
    }
}

/*$PAGE*/
/*
*********************************************************************************************************
*                                      TERMINAL WINDOW CALLBACK
*********************************************************************************************************
*/

#if OS_VIEW_MODULE > 0
static  void  AppTerminalRx (INT8U rx_data)
{
}
#endif