#ifndef _usart2_H
#define _usart2_H

#include "general_type.h"
#include "stm32l1xx_usart.h"

#define USART2_MAX_RECV_LEN		400					//最大接收缓存字节数
#define USART2_MAX_SEND_LEN		400					//最大发送缓存字节数
#define USART2_RX_EN 			1					//0,不接收;1,接收.



extern char  USART2_RX_BUF[USART2_MAX_RECV_LEN]; 		//接收缓冲,最大USART2_MAX_RECV_LEN字节
extern u8  USART2_TX_BUF[USART2_MAX_SEND_LEN]; 		//发送缓冲,最大USART2_MAX_SEND_LEN字节
extern vu16 USART2_RX_STA;   						//接收数据状态
extern u8 BC25_QIURC;
void USART2_Configuration(u32 baund); 
void u2_printf(char* fmt,...);
void TIM2_Set(unsigned char sta);
void timer2_init(void);
void USART2_ReceiveBuff_Clear(void);
void USART2_Recieve_Ide(void);
#endif