at89c52.c

TRX51 多任务实时操作系统

#include <rtx51tny.h>                 /* RTX-51 tiny functions & defines      */
#include <stdio.h>
#include <reg52.h>


int counter0;                        /* counter for task 0                   */
int counter1;                        /* counter for task 1                   */
int counter2; 
int counter3;
int counter4;
int counter5;
static unsigned long counter6 = 0;

                       //测试定时
extern  serial_initial(); 
void   System_Initial();
job0 () _task_ 0 {
        serial_initial();
	    printf("Start!\n");
	    System_Initial();
       os_create_task(1);   
       os_create_task(2);
	   while(1)  {
	     counter0++;
             if((counter0 & 0xFF)==0x09)
             counter0=0;
             //os_send_signal(1);        //启动计数器1
			 P0=~P0;
	   }
}
job1 ( )  _task_ 1 {
       while(1)
	   {
         //os_wait(K_TMO,10,0);         //等待信号
		 os_wait(K_IVL,100,0);
	     counter1++;
             if ((counter1 & 0xFF)==0x09)
                counter1=0;
               os_send_signal(2);     //启动计数器2     
				
	   }
}
job2 ( ) _task_ 2{
      while(1) {
           os_wait(K_SIG,0,0);       //等待信号
	     counter2++;
	  }
}
void  timer1() interrupt 3 using 2    //定时中断1
{
       counter3++;
}
void  int0() interrupt 0 using 3     //外部中断0
{
       counter4++;
}
void  int1() interrupt 2 using 1     //外部中断1
{
      counter5++;
}
void  timer2() interrupt 5    //定时中断2
{
      TF2=0;                         //清除溢出标志
	  counter6++;                    //调试
}
void  System_Initial()
{
	   	                            
	   ET1=1;						   //允许定时器1中断
	  
	   EX0=1;                          //外部中断0允许
	   EX1=1;                          //外部中断1允许  
	   RCAP2L = (65536UL-1000UL);
       RCAP2H = (65536UL-1000UL) >> 8;
	   TH2=RCAP2L;                       //定时初值
	   TL2=RCAP2H; 

	   T2CON=0x80;                     //定时方式，16位计数,允许自动重载
	   ET2=1;                          //允许定时器2中断
	   TR2=1; 
	   EA=1;                           //开放中断
	
	
}