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📄 app.c

📁 ARM_CORTEX-M3应用实例开发详解光盘
💻 C
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#include <includes.h>


static  OS_STK         App_TaskStartStk[APP_TASK_START_STK_SIZE];

#if (OS_VIEW_MODULE == DEF_ENABLED)
OS_STK  TerminalTaskStk[APP_TASK_TERMINAL_STK_SIZE];
void	TerminalTask(void *pdata);
void  AppTerminalRx(CPU_INT08U   rx_data);
CPU_INT08U AppTerminalRxMboxData = 0;
OS_EVENT *AppTerminalRxMbox;
#endif



static  void  App_TaskCreate		(void);
static  void  App_EventCreate		(void);

static  void  App_TaskStart			(void		*p_arg);


#if (APP_LCD_EN == DEF_ENABLED)
static  void  App_TaskUserIF             (void        *p_arg);
static  void  App_DispScr_SignOn         (void);
static  void  App_DispScr_VersionTickRate(void);
static  void  App_DispScr_CPU            (void);
static  void  App_DispScr_CtxSw          (void);
static  void  App_DispScr_GPS 			 (void);
#endif



INT32S main (void)
{
    CPU_INT08U  os_err;
#if 0
	INT32U sdret, i;
	INT8U buffer[512];

	BSP_Init(); 
	sdret = SD_Initialize();
	printf("sdret=0x%02X\r\n", sdret);
	if(!sdret) {
		while(1) {	
			sdret = SD_ReadBlock(0, 512, buffer);
		
			if(sdret) {
				printf("sdret=0x%02X\r\n", sdret);
				break;
			}
			OSTimeDly(1);
		}
	}
#endif

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

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

    os_err = OSTaskCreateExt((void (*)(void *)) App_TaskStart,  /* Create the start task.                               */
                             (void          * ) 0,
                             (OS_STK        * )&App_TaskStartStk[APP_TASK_START_STK_SIZE - 1],
                             (INT8U           ) APP_TASK_START_PRIO,
                             (INT16U          ) APP_TASK_START_PRIO,
                             (OS_STK        * )&App_TaskStartStk[0],
                             (INT32U          ) APP_TASK_START_STK_SIZE,
                             (void          * )0,
                             (INT16U          )(OS_TASK_OPT_STK_CLR | OS_TASK_OPT_STK_CHK));

#if OS_TASK_NAME_EN > 0
    OSTaskNameSet(APP_TASK_START_PRIO, (CPU_INT08U *)"Start Task", &os_err);
#endif

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

    return (0);
}


/*
*********************************************************************************************************
*                                          App_TaskStart()
*
* Description : The startup task.  The uC/OS-II ticker should only be initialize once multitasking starts.
*
* Argument(s) : p_arg       Argument passed to 'App_TaskStart()' by 'OSTaskCreate()'.
*
* Return(s)   : none.
*
* Caller(s)   : This is a task.
*
* Note(s)     : none.
*********************************************************************************************************
*/

static  void  App_TaskStart (void *p_arg)
{
    //CPU_INT08U  os_err;
	INT32U count = 0, sdret, i;
	INT8U buffer[512];


    (void)p_arg;

    BSP_Init();                                                 /* Initialize BSP functions.                            */
    OS_CPU_SysTickInit();                                       /* Initialize the SysTick.                              */

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

#if (GPS_MODULE == DEF_ENABLED)
    GPS_Init();                                         		/* GPS Init                          					*/
    GPS_RxIntEn();                                           	/* Enable Rx Interrupts                                 */
#endif

#if (OS_VIEW_MODULE == DEF_ENABLED)
    OSView_Init(115200);                                        /* OSView Init, baud rate = 115200                      */
    OSView_TerminalRxSetCallback(AppTerminalRx);
    OSView_RxIntEn();                                           /* Enable Rx Interrupts                                 */
	AppTerminalRxMbox = OSMboxCreate((void *)0);
#endif

    App_EventCreate();                                          /* Create application events.                           */
    App_TaskCreate();                                           /* Create application tasks.                            */

	sdret = SD_Initialize();
	printf("sdret=0x%02X\r\n", sdret);
	if(!sdret) {
		while(1) {	
			sdret = SD_ReadBlock(0, 512, buffer);
			
			if(sdret) {
				printf("sdret=0x%02X\r\n", sdret);
				break;
			}
			OSTimeDly(1);
		}
	}
	
	

	BSP_LED_Off(2);
    while (DEF_TRUE) {                                          /* Task body, always written as an infinite loop.       */
		count++;
		if(count % 25 == 0) {
			BSP_LED_Toggle(2);
		}
		OSTimeDlyHMSM(0, 0, 0, 10);
		

    }
}



/*
*********************************************************************************************************
*                                             App_EventCreate()
*
* Description : Create the application events.
*
* Argument(s) : none.
*
* Return(s)   : none.
*
* Caller(s)   : App_TaskStart().
*
* Note(s)     : none.
*********************************************************************************************************
*/

static  void  App_EventCreate (void)
{
#if (OS_EVENT_NAME_SIZE > 12)
    CPU_INT08U  os_err;
#endif

    App_ADCSem = OSSemCreate(0);                   /* Create MBOX for communication between Kbd and UserIF.*/
#if (OS_EVENT_NAME_SIZE > 12)
    OSEventNameSet(App_ADCSem, "ADC Sem", &os_err);
#endif
}


/*
*********************************************************************************************************
*                                            App_TaskCreate()
*
* Description : Create the application tasks.
*
* Argument(s) : none.
*
* Return(s)   : none.
*
* Caller(s)   : App_TaskStart().
*
* Note(s)     : none.
*********************************************************************************************************
*/

static  void  App_TaskCreate (void)
{
    CPU_INT08U  os_err;

#if (OS_VIEW_MODULE == DEF_ENABLED)
    os_err = OSTaskCreateExt((void (*)(void *)) TerminalTask,
                             (void          * ) 0,
                             (OS_STK        * )&TerminalTaskStk[APP_TASK_TERMINAL_STK_SIZE - 1],
                             (INT8U           ) APP_TASK_TERMINAL_PRIO,
                             (INT16U          ) APP_TASK_TERMINAL_PRIO,
                             (OS_STK        * )&TerminalTaskStk[0],
                             (INT32U          ) APP_TASK_TERMINAL_STK_SIZE,
                             (void          * ) 0,
                             (INT16U          )(OS_TASK_OPT_STK_CLR | OS_TASK_OPT_STK_CHK));

#if OS_TASK_NAME_EN > 0
    	OSTaskNameSet(APP_TASK_TERMINAL_PRIO, "Terminal Task", &os_err);
#endif
#endif
}


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

#if (OS_VIEW_MODULE == DEF_ENABLED)
void  AppTerminalRx (CPU_INT08U rx_data)
{
	AppTerminalRxMboxData = rx_data; 
	OSMboxPost(AppTerminalRxMbox, &AppTerminalRxMboxData);
}
#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 == DEF_ENABLED)
    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 == DEF_ENABLED)
    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 == DEF_ENABLED)
    OSView_TickHook();
#endif
}
#endif
#endif

#if (OS_VIEW_MODULE == DEF_ENABLED)
void  TerminalTask(void *pdata)
{
    INT8U      s[100];
    INT8U      *key;
    INT8U      err;

    (void)pdata;
	                                         /* Prevent compiler warning                 */
    while (1) {
        key = (INT8U *)OSMboxPend(AppTerminalRxMbox, 0, &err);
        switch (*key) {
            case '1':
                 sprintf((char *)s, "\nCPU Usage = %3u%%\n", OSCPUUsage);
                 OSView_TxStr(s, 1);
                 break;

            case '2':
                 sprintf((char *)s, "\n#Tasks    = %3u\n", OSTaskCtr);
                 OSView_TxStr(s, 1);
                 break;

            default:
                 OSView_TxStr("\n\nMicrium, Inc.",       1);
                 OSView_TxStr("\n1: CPU Usage (%)",      1);
                 OSView_TxStr("\n2: #Tasks",             1);
                 OSView_TxStr("\n?: Help (This menu)\n", 1);
                 break;
        }
    }
}
#endif

#ifdef DEBUG
/****************************************************************** 
* Function name : assert_failed 
* Description : Reports the name of the source file and the source line number 
* where the assert_param error has occurred. 
* Input : - file: pointer to the source file name 
* - line: assert_param error line source number 
* Output : None * Return : None 
******************************************************************/ 
void assert_failed(u8* file, u32 line) { 
	printf("Wrong parameters value: file %s on line %d\r\n", file, line); 
	while (1) { } 
}
 #endif

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