main.c.111019200232

mega16 ucos操作系统

#include "includes.h"

void StartTask(void *pdata);
OS_STK StartTaskStack[OS_TASK_START_STK_SIZE]={0};
/*
******************************************************************************
*			Timer0 overflow 用于系统时钟节拍
*****************************************************************************
*/ 
void OSTick_Init (void){	
	OS_ENTER_CRITICAL();
	//WDTCR=(1<<WDTOE)|(1<<WDE);
	//WDTCR=(1<<WDE);//17ms看门狗 
	
	TIMSK &= ~(BIT(TOIE0) /* | BIT(OCIE0) */);	    /*disable TC0 interrupts                           */
	TCCR0 = 0x02;		                            /* /8                                           */
	TCNT0 = 0x05; 	                                /* Counter overflow initial , 0.5ms @ 4MHz         */	
	TIMSK |= BIT(TOIE0);	                        /* enable OVF-interrupt                            */ 
    OS_EXIT_CRITICAL();	 // enable global interrupt     
}

 
void System_Init(void)
{
    //端口的初始化
 	PORTA = 0x40;        
	DDRA = 0xFF;		
	
	PORTB = 0x43;        //beep off ,BAT_C+ == OFF、BAT_C- == OFF
	DDRB = 0x5F;		 //01011100 主要用于均衡模块的控制端口的IO扩展
		
	PORTC = 0x00;        //主要用于开关的控制
	DDRC = 0x3F;         //00111100
    	
	PORTD = 0x00;	     //开关和485总线
	DDRD = 0x1C;	     //PD3扩展成第5位ID
		 
	/*蜂鸣器*/
    PORTA&=~(1<<PA6);
	delay_nms(100);
    PORTA|=(1<<PA6);      //PB2控制蜂鸣器 
	
}
// Start
void main(void)
{
    System_Init();
    OSTaskStkSize     = OS_TASK_IDLE_STK_SIZE;       /* Setup the default stack size                        */
    OSTaskStkSizeHard = OS_TASK_IDLE_STK_SIZE_HARD;  /* Setup the default hardware stack size               */
    OSInit();		// OS init 
      	 
		
    OSTaskStkSize     = OS_TASK_START_STK_SIZE;      /* Setup the total stack size                          */
    OSTaskStkSizeHard = OS_TASK_START_STK_SIZE_HARD; /* Setup the hardware stack size                       */
    OSTaskCreate( StartTask,
                             (void *)0,
                             (OS_STK *)&StartTaskStack[OSTaskStkSize - 1],
                             OS_TASK_START_PRIO);   
	  
    OSStart(); 	
}