dsa.h

这是一个成熟的DSA通讯持续,可以在单片机之间通讯用.

#include<at89x52.h>
#include"typedefine.h"

#ifndef	__dsa_h__
#define __dsa_h__
/*------------------------------------------------
-------------------------------------------------*/

#define Ack P0_0
#define Stb P0_3
#define S_data P0_2
/*------------------------------------------------
-------------------------------------------------*/
static void dsa_init();
static void Wr_data(int w_data, uchar w_ldat);  //写字节
static uchar Rd_data();        //读字节 有返回值
/*------------------------------------------------
-------------------------------------------------*/

static uchar Time_out;
static uchar check_count;
/*------------------------------------------------
-------------------------------------------------*/
extern uchar Send_ok;
extern uchar Read_ok;
extern uchar dsa_com;
extern uchar dsa_data1;
extern uchar dsa_data2;
/*------------------------------------------------
-------------------------------------------------*/
extern void Wr_command(uchar wdsa_c,uchar wdsa_d,uchar wdsa_l)  ; //写命令
extern void Rd_command() ; //读命令

#endif