#ifndef _SYS_H_
#define _SYS_H_

#ifdef __cplusplus
extern "C" {
#endif

#include <stdio.h>
#include <stdlib.h>
#include <stdarg.h>
#include <string.h>

#define GET_BYTE_LOW_4_BITS(data)          (data&0x0F)
#define GET_BYTE_HIGH_4_BITS(data)         (data>>4)  
#define SET_BYTE_LOW_4_BITS(byte, data)    ((byte&0xF0)|data); 
#define SET_BYTE_HIGH_4_BITS(byte, data)   ((byte&0x0F)|(data << 4))
#define GET_BIT(data, bit_num)             ((data) >> (bit_num)&1)
#define SET_BIT(data, bit_num)             (data |= (0x1 << bit_num))
#define CLEAR_BIT(data, bit_num)           (data &= ~(0x1 << bit_num))
#define MAKEWORD(H, L)                     (unsigned short)(((L) & 0xFF) | (((H) & 0xFF)<< 8))

int Sys_Sprintf(int8_t *buf, const int8_t *fmt, ...);
uint8_t FW_ascToHex(uint8_t asc);
uint8_t FW_hexToAsc(uint8_t hex);
uint8_t FW_ascToHexString(uint8_t *asc, uint8_t len, uint8_t *hexString);
void    FW_Change2VariableValue(int *a, int *b);
uint8_t FW_Bcd2Hex(uint8_t bcd_data);
uint8_t FW_Hex2Bcd(uint8_t hex_data);

#ifdef __cplusplus
}
#endif

#endif //_SYS_H_