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//X5045.H

#ifndef X5045_h
#define X5045_h

#define WDT1_4  0x00;
#define WDT600  0x10;
#define WDT200  0x20;
#define WDTDIS  0x30;

//BIT
sbit B_CS5045=P2^0;
sbit B_SO5045=P2^1;
sbit B_SCLK5045=P2^3;
sbit B_SI5045=P2^2;

extern unsigned char data tcX5045;

void RstWDT(void);
void WrB5045(unsigned char,unsigned char) reentrant;      //寫入單字節(jié)數據
unsigned char RdB5045(unsigned char);           //讀出單字節(jié)數據
void byteout(unsigned char);                    //向5045輸出單字節(jié)
void wip_chk(void);                             //等待5045結束內部寫周期
unsigned char rdsr(void);                       //5045狀態(tài)寄存器讀出程序
unsigned char bytein(void);                     //從5045讀出一字節(jié)數據
unsigned char readx(void);                      //讀地址,地址位于100h
void wrsr(unsigned char);                       //5045狀態(tài)寄存器寫入程序
void wren(void);                                //寫允許
void wrdi(void);                                //寫禁止

#endif

/*
X5045/3 讀寫驅動
*/

#include <reg51.h>
#include "X5045.h"

//復位看門狗
void RstWDT()
{
    B_CS5045=0;
    B_CS5045=1;
}

//向X5045寫入單字節(jié)數據
//輸入：x,待寫數據,address,寫入數據的地址
void WrB5045(unsigned char x,unsigned char address) reentrant //數據,地址
{
        wren();
        B_SCLK5045=0;
        B_CS5045=0;
        byteout(0x2); //write
        byteout(address);
        byteout(x);
        B_SCLK5045=0;
        B_CS5045=1;
        wip_chk();
        wrdi();