app.c

ucos-ii在msp430f149上的移植

/*
*********************************************************************************************************
*                                               uC/OS-II
*                                         The Real-Time Kernel
*
*                             (c) Copyright 2008, Micrium, Inc., Weston, FL
*                                          All Rights Reserved
*
*
*                                              Sample code
*
* File : APP.C
* By   : Hong Soong
*********************************************************************************************************
*/

#include "includes.h"

/*
*********************************************************************************************************
*                                                 DEFINES
*********************************************************************************************************
*/

#define  LCD_LINE_BUF       18                                          /* The last character should always be a null character     */
#define  LCD_NUM_LINES       9

#define  PB_LEFT            DEF_BIT_01
#define  PB_RIGHT           DEF_BIT_02
#define  PB_SELECT          DEF_BIT_03
#define  PB_UP              DEF_BIT_04
#define  PB_DOWN            DEF_BIT_05
#define  PB_S1              DEF_BIT_06
#define  PB_S2              DEF_BIT_07

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

static  OS_STK      AppTaskStartStk[APP_START_TASK_STK_SIZE];
static  OS_STK      AppTask1Stk[APP_TASK1_STK_SIZE];
static  OS_STK      AppTask2Stk[APP_TASK2_STK_SIZE];
static  OS_STK      AppTask3Stk[APP_TASK3_STK_SIZE];
static  OS_STK      AppTask4Stk[APP_TASK4_STK_SIZE];

#if (uC_TCPIP_MODULE > 0)
        NET_IP_ADDR     AppNetIP;
        NET_IP_ADDR     AppNetMsk;
        NET_IP_ADDR     AppNetGateway;
#endif
        
static  CPU_CHAR    AppLCDTxt0[LCD_LINE_BUF];
static  CPU_CHAR    AppLCDTxt1[LCD_LINE_BUF];
static  CPU_CHAR    AppLCDTxt2[LCD_LINE_BUF];
static  CPU_CHAR    AppLCDTxt3[LCD_LINE_BUF];
static  CPU_CHAR    AppLCDTxt4[LCD_LINE_BUF];
static  CPU_CHAR    AppLCDTxt5[LCD_LINE_BUF];
static  CPU_CHAR    AppLCDTxt6[LCD_LINE_BUF];
static  CPU_CHAR    AppLCDTxt7[LCD_LINE_BUF];
static  CPU_CHAR    AppLCDTxt8[LCD_LINE_BUF];

static  CPU_CHAR    AppLCDTxt[(LCD_LINE_BUF * LCD_NUM_LINES)] = "  0  Micrium      000 uCOS-II  00   0 ---------    CPU Usage                         Time Ticks                        Context Switches                  ";


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

static  void  AppDispInit   (void);
static  void  AppDispUpdate (void);


/*$PAGE*/
/*
*********************************************************************************************************
*                                                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 CPU and C initialization.
*
* Arguments   : none
*********************************************************************************************************
*/

void  main (void)
{
    CPU_INT08U  err;


                                                    /* Disable all interrupts until we are ready to accept them */

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

    OSTaskCreate(AppTaskStart,                                       /* Create the start task                                    */
                    (void *)0,
                    (OS_STK *)&AppTaskStartStk[APP_START_TASK_STK_SIZE - 1],
                    
                    APP_START_TASK3_PRIO,
                    
                    );



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


/*$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()'.
*
* 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.
*               2) Interrupts are enabled once the task start because the I-bit of the CCR register was
*                  set to 0 by 'OSTaskCreate()'.
*********************************************************************************************************
*/

static  void  AppTaskStart (void *p_arg)
{
    (void)p_arg;

    BSP_Init();                                                         /* Initialize BSP functions                                 */

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

    AppDispInit();                                                      /* Initialize the Display layout                            */

    AppTaskCreate();                                                    /* Create application tasks                                 */
    
    while (1) {                                                         /* Task body, always written as an infinite loop.           */
        AppDispUpdate();  
        OSTimeDlyHMSM(0, 0, 0, 100);
    }
}