eeprom.c

来自「一个基于C51开发的计价秤」· C语言 代码 · 共 157 行

/*********************************************/
// File Name: eeprom.c
// Author: henny
// Date: 2006/3/1
/*********************************************/
#include <SST89x5xxRD2.h>
#include "Public.h"
#include "IIC.h"
#define AT24C512 0xa0
#define EXTREN_AT24C512 0xa6
extern BYTE sales_type;
extern BYTE lcd1_buf[5];
extern BYTE lcd2_buf[7];
extern BYTE PLU_buf[PLU_LEN];
extern BYTE Record_buf[RECORD_LEN];
extern UNION_FLOAT temp_FLOAT;

BOOL Read_Option_Table(BYTE *pt)
{
	if(Read_eeprom(AT24C512,0,pt,TABLE_LEN))
		return TRUE;
	else
		return FALSE;	
}

BOOL Read_extern_eeprom(BYTE *pt)
{
	if(Read_eeprom(EXTREN_AT24C512,0,pt,TABLE_LEN))
		return TRUE;
	else
		return FALSE;	
}

BOOL Save_Option_Table(BYTE *pt)
{
	if(Write_eeprom(AT24C512,0,pt,TABLE_LEN))
		return TRUE;
	else
		return FALSE;	
}

BOOL Read_Cal_Password(BYTE *pt)
{
	if(Read_eeprom(AT24C512,Password_address,pt,3))
		return TRUE;
	else
		return FALSE;
}

VOID Read_Option_Param(BYTE *pt)
{
	Read_eeprom(AT24C512,Option_Param_address,pt,1);
}

VOID Read_Cal_counts(BYTE *pt)
{
	Read_eeprom(AT24C512,Cal_counts_address,pt,1);	
}

VOID Read_Cal_Zero_limit(BYTE *pt)
{
	Read_eeprom(AT24C512,Cal_Zero_limit_count_address,pt,6);
}

VOID Save_Option_Param(BYTE *pt)
{
	Write_eeprom(AT24C512,Option_Param_address,pt,1);
}

VOID Save_Cal_counts(BYTE *pt)
{
	Write_eeprom(AT24C512,Cal_counts_address,pt,1);	
}

VOID Save_Cal_One_count(FLOAT temp)
{
	BYTE Option_Table[4]; 
	temp_FLOAT.F=temp;
	Option_Table[0]=temp_FLOAT.B[0];
	Option_Table[1]=temp_FLOAT.B[1];
	Option_Table[2]=temp_FLOAT.B[2];
	Option_Table[3]=temp_FLOAT.B[3];
	Write_eeprom(AT24C512,Cal_One_count_address,Option_Table,4);	
}

VOID Save_Cal_Zero_count(FLOAT temp)
{
	BYTE Option_Table[4];
	temp_FLOAT.F=temp;
	Option_Table[0]=temp_FLOAT.B[0];
	Option_Table[1]=temp_FLOAT.B[1];
	Option_Table[2]=temp_FLOAT.B[2];
	Option_Table[3]=temp_FLOAT.B[3];
	Write_eeprom(AT24C512,Cal_Zero_count_address,Option_Table,4);	
}
 
VOID PLU_Load(WORD temp)
{
	WORD adr;
	adr=(temp-1)*32+PLU_DATA_ADR;
	Read_eeprom(AT24C512,adr+18,PLU_buf,3);	
}

VOID PLU_Save(WORD temp)
{
	WORD adr;
	adr=(temp-1)*32+PLU_DATA_ADR;
	Write_eeprom(AT24C512,adr,PLU_buf,PLU_LEN-1);	
}

VOID Save_PLU_Setup_form_Disp_Buf(WORD temp)
{
	INT8 data i;
	WORD adr;
	adr=(temp-1)*32+PLU_DATA_ADR;
	PLU_buf[0]=lcd1_buf[2]-'0';
	PLU_buf[1]=lcd1_buf[1]-'0';
	PLU_buf[1]=PLU_buf[1]<<4;
	PLU_buf[1]+=lcd1_buf[0]-'0';
	for(i=2;i<18;i++)
		PLU_buf[i]=0xff;	
	if(lcd2_buf[5]!=0)
		PLU_buf[18]=lcd2_buf[5]-'0';
	else
		PLU_buf[18]=lcd2_buf[5];
	PLU_buf[18]=PLU_buf[18]<<4;
	if(lcd2_buf[4]!=0)
		PLU_buf[18]+=lcd2_buf[4]-'0';
	else
		PLU_buf[18]+=lcd2_buf[4];
	if(lcd2_buf[3]!=0)
		PLU_buf[19]=lcd2_buf[3]-'0';
	else
		PLU_buf[19]=lcd2_buf[3];
	PLU_buf[19]=PLU_buf[19]<<4;
	PLU_buf[19]+=lcd2_buf[2]-'0';
	PLU_buf[20]=lcd2_buf[1]-'0';
	PLU_buf[20]=PLU_buf[20]<<4;
	PLU_buf[20]+=lcd2_buf[0]-'0';
	Write_eeprom(AT24C512,adr,PLU_buf,PLU_LEN-1);		
}

VOID Record_Save(WORD temp)
{
	WORD adr;
	adr=(temp-1)*16+RECORD_DATA_ADR;
	Record_buf[0]=sales_type;
	Write_eeprom(AT24C512,adr,Record_buf,RECORD_LEN-1);
}

VOID Record_Load(WORD temp)
{
	WORD adr;
	adr=(temp-1)*16+RECORD_DATA_ADR;
	Read_eeprom(AT24C512,adr,Record_buf,RECORD_LEN-1);
}