1 #ifndef  _DF_FIFO_H
 2 #define  _DF_FIFO_H
 3 #define uint8_t unsigned char
 4 #define uint16_t unsigned int 
 5 /*该参数设置接受区大小*/
 6 
 7 typedef struct {
 8     
 9     int  read;//读指针
10     int  write;//写指针
11     int  Count;//缓冲区计数
12     int  length;//缓冲区大小
13     uint8_t  * buffer;// [RECERIVRSIZE];//接受缓冲区
14 }Df_FifoStructTypeDef, *Df_FifoPointTypeDef;
15 
16 
17 typedef enum Df_StateTypeDef
18 {
19     Df_StateOk,//成功
20     Df_StateErr,//失败
21     Df_StateTimeout,//超时
22     Df_StateOutOver,//读溢出
23     Df_StateInOver,//写溢出
24     Df_StateEaserOver//擦除溢出
25 }Df_StateTypeDef;
26 
27 
28 Df_StateTypeDef Df_FifoInput(Df_FifoPointTypeDef Pfifo, uint8_t * buf, uint8_t length);
29 Df_StateTypeDef Df_FifoOutput(Df_FifoPointTypeDef Pfifo, uint8_t * buf, uint8_t length);
30 Df_StateTypeDef Df_FifoErase(Df_FifoPointTypeDef Pfifo, uint8_t length);
31 Df_StateTypeDef Df_FifoReset(Df_FifoPointTypeDef Pfifo, uint8_t * buf, uint16_t length);
32 
33 
34 #endif /*_DF_FIFO_H*/