#ifndef _DATA_TYPE_H 
#define _DATA_TYPE_H 
 
 
typedef unsigned long       ulong;  //DWORD 
typedef signed char         s8_t ; 
typedef unsigned char       u8_t; 
typedef unsigned short      u16_t;  //WORD 
typedef int                 s32_t; 
typedef unsigned int        u32_t; 
  
#endif