ex1l.c

本人编写的无线电话程序,给予PIC18C801设计,包括了uCOS的移植以及菜单,自己设计的拼音注入法,完整地一级汉字库,希望对大家有所帮助

/*
*********************************************************************************************************
*                                                uC/OS-II
*                                          The Real-Time Kernel
*
*                        (c) Copyright 1992-1998, Jean J. Labrosse, Plantation, FL
*                                           All Rights Reserved
*
*                                                 V2.00
*
*                                               EXAMPLE #1
*********************************************************************************************************
*/

#include "includes.h"

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

#define  TASK_STK_SIZE                 256       /* Size of each task's stacks          */
#define  N_TASKS                        7       /* Number of identical tasks                          */

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

OS_EVENT        *RandomSem;

#pragma romdata EXTRAM
OS_STK           TaskStk[N_TASKS][TASK_STK_SIZE];     /* Tasks stacks                                  */
OS_STK           TaskStartStk[TASK_STK_SIZE];
//char             TaskData[N_TASKS];                   /* Parameters to pass to each task               */


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

#pragma	code 	CCODE

void   Task(void *data);                              /* Function prototypes of tasks                  */
void   TaskStart(void *data);                         /* Function prototypes of Startup task           */

/*$PAGE*/
/*
*********************************************************************************************************
*                                                MAIN
*********************************************************************************************************
*/

void main (void)
{
//    PC_DispClrScr(DISP_FGND_WHITE + DISP_BGND_BLACK);      /* Clear the screen                         */
	OSInit();                                              /* Initialize uC/OS-II                      */
//    PC_DOSSaveReturn();                                    /* Save environment to return to DOS        */   
//    PC_VectSet(uCOS, OSCtxSw);                             /* Install uC/OS-II's context switch vector */

    RandomSem = OSSemCreate(1);                            /* Random number semaphore                  */
    OSTaskCreate(TaskStart, (void *)0, (rom void *)&TaskStartStk[0], 2);
    OSStart();                                             /* Start multitasking                       */
}

/*$PAGE*/
/*
*********************************************************************************************************
*                                              STARTUP TASK
*********************************************************************************************************
*/
void TaskStart (void *data)
{
    UBYTE  i;
//    char   s[100];
    WORD   key;


    data = data;                                           /* Prevent compiler warning                 */


    OS_ENTER_CRITICAL();
//    PC_VectSet(0x08, OSTickISR);                           /* Install uC/OS-II's clock tick ISR        */
//    PC_SetTickRate(OS_TICKS_PER_SEC);                      /* Reprogram tick rate                      */
    OS_EXIT_CRITICAL();

	HW_Bd_Init();

//    PC_DispStr(0, 22, "Determining  CPU's capacity ...", DISP_FGND_WHITE);
    OSStatInit();                                          /* Initialize uC/OS-II's statistics         */
//    PC_DispClrLine(22, DISP_FGND_WHITE + DISP_BGND_BLACK);

    for (i = 0; i < N_TASKS; i++) {                        /* Create N_TASKS identical tasks           */
//        TaskData[i] = '0' + i;                             /* Each task will display its own letter    */
//        OSTaskCreate(Task, (void *)&TaskData[i], (void *)&TaskStk[i][TASK_STK_SIZE - 1], i + 1);
        OSTaskCreate(Task, (void *)0, (rom void *)&TaskStk[i][0], i + 3);
    }
    for (;;) {
        OSCtxSwCtr = 0;
        OSTimeDlyHMSM(0, 0, 1, 0);                         /* Wait one second                          */
    }
}
/*$PAGE*/
/*
*********************************************************************************************************
*                                                  TASKS
*********************************************************************************************************
*/

void Task (void *data)
{
    UBYTE x;
    UBYTE y;
    UBYTE err;


	x=0;
	y=0;
    for (;;) {
        OSSemPend(RandomSem, 0, &err);           /* Acquire semaphore to perform random numbers        */
        x++;			                          /* Find X position where task number will appear      */
        y++;			                          /* Find Y position where task number will appear      */
        OSSemPost(RandomSem);                    /* Release semaphore                                  */
                                                 /* Display the task number on the screen              */
        OSTimeDly(1);                            /* Delay 1 clock tick                                 */
    }
}