os_start.c

51上的RTOS

/* $$$$$$$$$$$$$$$$$$   Copyrigth (c) $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$                                               
    File name: OS_Start.c
    Function describe: start timer 0,and then sleep      
    Compiler: Keil uVision2
    Version: 1.01                               
	                                                    Programmer: Shawyoo                                                    
												       最近修改日期：20040729
// $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
    If you want to use standard main function,please change the
  const "USER_ENTRANCE=0"
$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$ */

#include     "RTOS.h"
#define      USER_ENTRANCE                        1

void    UserInit(void);
void    MiniRTOS_Init(void);


#if(USER_ENTRANCE)         // 
void         OSStart()     // 自己定义的程序复位入口
#else
void         main(void)        // 标准main函数作为程序复位入口
#endif
{
   NOP();   NOP();
  #if(USER_ENTRANCE)   
   SP=STACK_POINTER;       
  #endif  
   UserInit();
   NOP();   NOP();
   MiniRTOS_Init();
   while(1)
   {
      NOP();   NOP();
	  NOP();   NOP();
	  PCON|=0x01;
 	  NOP();   NOP();
	  NOP();   NOP();
   }   
}


// ////////////////////////////////////////////
void       ResetWatchDog(void)
{
   NOP();   NOP();   // your watchdog code
}




void    MiniRTOS_Init(void)        //
{    
   //stop errant interrupts until set up
   NOP();   NOP();
   DisableInterrupt();   //disable all interrupts
   OSCreateTask(0);
   OSDeleteTask(0);   
   OSDeleteAllTask();
   ///////////////////////////////////////
   TR0=TF0=0;
   TMOD|=0x01;      //ctc0 is mod1
   ET0=1;           //enable timer0 interrupt           
   PT0=1;     
   OSCreateTask(0);     // 
   OSDeleteTask(0);     // 
   OSDeleteAllTask();   //  
   NOP();   NOP();     
   //// $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$      
   TR0=1;  
   EnableInterrupt();   //re-enable interrupts
   // all peripherals are now initialised    
}