memory.c

来自「一个基于C51开发的计价秤」· C语言 代码 · 共 48 行

#include <SST89x5xxRD2.h>
#include "Public.h"
#include "IIC.h"
#define AT24C512 0xa0
#define PLU_DATA_ADR 0x40
#define REPORT_DATA_ADR 0x1fff

extern BYTE xdata PLU_buf[22];
extern BYTE xdata Record_buf[16];
extern BYTE xdata Option_Table[64];

VOID Read_Optial_Table()
{
	Read_eeprom(AT24C512,0,Option_Table,64);	
}

VOID Save_Cal_Factor()
{
	Write_eeprom(AT24C512,26,Option_Table,8);	
}
 
VOID PLU_Load(WORD PLU_no)
{
	WORD adr;
	adr=PLU_no*22+PLU_DATA_ADR;
	Read_eeprom(AT24C512,adr,PLU_buf,22);	
}

VOID PLU_Save(WORD PLU_no)
{
	WORD adr;
	adr=PLU_no*22+PLU_DATA_ADR;
	Write_eeprom(AT24C512,adr,PLU_buf,22);	
}

VOID Record_Load(WORD record_counts)
{
	WORD adr;
	adr=record_counts*16+REPORT_DATA_ADR;
	Read_eeprom(AT24C512,adr,Record_buf,16);
}

VOID Record_Save(WORD record_counts)
{
	WORD adr;
	adr=record_counts*16+REPORT_DATA_ADR;
	Write_eeprom(AT24C512,adr,Record_buf,16);
}