#ifndef _usart4_H
#define _usart4_H
#include "bsp.h"
#include "general_type.h"
#include "stm32l1xx_usart.h"
#include <math.h>
#include <stdlib.h>
#include <stdio.h>

#if defined ( __CC_ARM   )
#pragma anon_unions
#endif

#define USART4_MAX_RECV_LEN		1					//最大接收缓存字节数
#define USART4_MAX_SEND_LEN		512				//最大发送缓存字节数
void USART4_Configuration(u32 baund); 
void Usart4_ReceiveBuff_Clear(void);
void u4_printf(char* fmt,...);
u8 USART4_Recieve_Ide(void);
void timer4_init(void);
void TIM4_Set(unsigned char sta);
typedef struct STRUCT_USART4_Fram   //数据帧结构体
{
    char Usart4_RX_BUF[USART4_MAX_RECV_LEN];
    union 
    {
        __IO u16 InfAll;
        struct 
        {
            __IO u16 FramLength       :15;                               // 14:0 
            __IO u16 FramFinishFlag   :1;                                // 15 
        }InfBit;
    }; 
	
}Usart4_Fram_Record_Struct;

//extern Usart4_Fram_Record_Struct Usart4_Fram_Record_Structs;

#endif