/*初次學(xué)習(xí)ARM和uCOS,在周立功的SmartARM2200上,根據(jù)www.micrium.com提供的AN-1138.zip,改編而成的
LPC2210-uCOS2.76,共初學(xué)者參考,武安河,2006-12-18*/
#include "includes.h"

#define	TaskStkLengh	64			//Define the Task0 stack length 定義用戶任務(wù)0的堆棧長度
#define BEEPCON         0X00000080 //蜂鳴器 


OS_STK	TaskStk [TaskStkLengh];		//Define the Task0 stack 定義用戶任務(wù)0的堆棧

void Timer0_Exception(void)
{
    T0IR = 0x01;
    VICVectAddr = 0;            	//interrupt close 通知中斷控制器中斷結(jié)束
    OSTimeTick();
}
void Task0(void *pdata);			//Task0 任務(wù)0

void delays()
{
 unsigned int  i;
 unsigned int  dly=10;
for(;dly>0;dly--)
   for(i=0;i<5000;i++);
}

void Timer0Init(void)
{
    VICIntEnClr = 0xffffffff;
    VICIntSelect = 0;
    VICVectAddr = 0;
    T0IR = 0xFF;
    T0TCR = 0x02;
    T0MCR = 0x03;
	T0MR0 = 5000;	    						
	T0TCR = 0x01; 
	VICVectAddr0 = (unsigned long)OS_CPU_IRQ_ISR;// set interrupt vector in 0
	VICVectCntl0 = 0x20 | 4;                     // use it for Timer 0 Interrupt
	VICIntEnable = 0x00000010;                   // Enable Timer0 Interrupt
}

void TargetInit(void)
{
#if OS_CRITICAL_METHOD == 3                      /* Allocate storage for CPU status register           */
    OS_CPU_SR  cpu_sr = 0;
#endif
    OS_ENTER_CRITICAL();
    Timer0Init();
    OS_EXIT_CRITICAL();
}
main (void)
{
    IO2DIR = 0xF0000000;                    
	IO2SET = 0xF0000000;                  
	OSInit ();																										
	TargetInit ();
	OSTaskCreate (Task0,(void *)0, &TaskStk[TaskStkLengh - 1], 2);		
	OSStart ();
	 delays();
}
/*********************************************************************************************************
**                            Task0 任務(wù)0
********************************************************************************************************/
		void Task0	(void *pdata)
{
	while (1)
	{
	    PINSEL0 = 0X00000000;
		IO0DIR  = BEEPCON;
		IO0SET  = BEEPCON;
		 delays();
		IO0CLR  = BEEPCON;
		delays();
	}
}

   
/*********************************************************************************************************
**                            End Of File
********************************************************************************************************/