main.h

基于5402dsp的软件定时器的一种实现方法

  /*---------------------------------------------------------------------------
   *
   *      main.h definitions
   *      ---------------------------------------------
   *---------------------------------------------------------------------------*/
   
  typedef unsigned char	          UBYTE;	
  typedef unsigned int 	          UWORD;
  typedef long int    	          LWORD;
  typedef unsigned long           ULWORD;
  typedef volatile unsigned char  VUBYTE;
     
 
/*软件定时器结构，每个定时器只占用2个字节*/
typedef struct
{
   UWORD   run:1;         //定时器运行标志，0－停止，1－运行
   UWORD   flow:1;        //定时器溢出标志，0－未溢出，1－溢出
   UWORD   period:14;     //定时器定时值
}TIMER;