usrappinit.c

VxWorks BSP 下s3C44b0的源代码

/* usrAppInit.c - stub application initialization routine */

/* Copyright 1984-1998 Wind River Systems, Inc. */

/*
modification history
--------------------
01a,02jun98,ms   written
*/

/*
DESCRIPTION
Initialize user application code.
*/ 
#include "vxworks.h"
#include "s3c44b0x.h"

/*tTick任务的函数体*/
void tTick(void)
{
    
    while(1){	 	
	taskDelay (sysClkRateGet()/2);	/*延时0.5s*/
	*CPLDREG2 &= ~(0x04);		/*亮*/
	taskDelay (sysClkRateGet()/2);	/*延时0.5s*/	
	*CPLDREG2 |= 0x04;		/*灭*/
    }
}

/******************************************************************************
*
* usrAppInit - initialize the users application
*/ 

void usrAppInit (void)
    {
    int tid;
#ifdef	USER_APPL_INIT
	USER_APPL_INIT;		/* for backwards compatibility */
#endif

     /*创建并激活tTick任务，优先级150，任务栈4096字节，无入口参数*/
    tid = taskCreat("tTick",255, 0, 4096,(FUNCPTR)tTick,0,0,0,0,0,0,0,0,0,0);
    taskActivate(tid);
    
    }