?? eeprom.c
字號:
/************************************************************
* Copyright (c) 2004-2005, POWERCOM Co., All Rights Reserved.
* File :"eeprom.c"
* Description :
* Author : Xu Hailun
* Date : 2003-08-29
* Version : 1.0
* Revisions :
************************************************************/
//#include "..\inc\def.h"
#include "..\inc\all.h"
#include <inavr.h>
#define MAX_EEPROM_WAIT 10000
extern void delayx(uint x);
extern void Save_Log(uchar sel0,uchar sel1);
extern uint crc_fun(uint InitCRCValue,uchar *pbuf, uint numc);
__no_init uchar EEBuf[264] @ ESRAM_EEPROM_BUF;
void WRITE_EEPROM(uint START_ADDR, uint NUM)
{
uint i;
uint l;
uchar cSREG;
cSREG = SREG;
asm("cli");
for(i=0;i<NUM;i++){
l = 0;
while (chkbit(EECR,EEWE)){
l++;
// if(l>MAX_EEPROM_WAIT) goto ErrProc;
}
EEAR = START_ADDR+i;
EEDR = EEBuf[i];
setbit(EECR,EEMWE);
setbit(EECR,EEWE);
asm("wdr");//clear watchdog counter.
}
SREG = cSREG;
asm("sei"); // enable interrupts
//ErrProc:
// SREG = cSREG;
// asm("sei"); // enable interrupts
// return 1;
}
void READ_EEPROM(uint START_ADDR, uint NUM)
{
uint i;
uint l;
uchar cSREG;
cSREG = SREG;
asm("cli");
for(i=0;i<NUM;i++){
l = 0;
while (chkbit(EECR,EEWE)){
l++;
//if(l>MAX_EEPROM_WAIT) goto ErrProc;
}
EEAR = START_ADDR+i;
setbit(EECR,EERE);
EEBuf[i] = EEDR;
asm("wdr");//clear watchdog counter.
}
SREG = cSREG;
asm("sei"); // enable interrupts
//ErrProc:
// SREG = cSREG;
// asm("sei"); // enable interrupts
// return 1;
}
/*=========================24c04================================
#ifdef __EXTEND_24C04__
#define EE_SCL PORTC5
#define EE_SDA PORTC4
uchar EE_DATA,WORD_ADDR;
ushort EE_ADDR;
void EE_CMD(uchar CTRL_BYTE, ushort OP_ADDR)
{
// uchar WORD_ADDR;
// uchar i;
// Set page block address
if (OP_ADDR > 0xFF) CTRL_BYTE = CTRL_BYTE | 0x02;
// Get word address
WORD_ADDR = OP_ADDR;
// Start bit
clrbit(PORTC,EE_SCL);
setbit(PORTC,EE_SDA);
setbit(PORTC,EE_SCL);
clrbit(PORTC,EE_SDA);
for(i = 0 ; i <= 7;i++)
{
clrbit(PORTC,EE_SCL);
if ((CTRL_BYTE & 0x80) == 0) clrbit(PORTC,EE_SDA);
else setbit(PORTC,EE_SDA);
setbit(PORTC,EE_SCL);
CTRL_BYTE = CTRL_BYTE<<1;
}
// Acknowledge clock
clrbit(PORTC,EE_SCL);
setbit(PORTC,EE_SCL);
// Word address
for(i = 0 ; i<= 7;i++)
{
clrbit(PORTC,EE_SCL);
if ((WORD_ADDR & 0x80) == 0) clrbit(PORTC,EE_SDA);
else setbit(PORTC,EE_SDA);
setbit(PORTC,EE_SCL);
WORD_ADDR = WORD_ADDR<<1;
}
// Acknowledge clock
clrbit(PORTC,EE_SCL);
setbit(PORTC,EE_SCL);
}
void UPDATE_EEPROM1(ushort START_ADDR, ushort NUM)
{
for(j = 0; j<= NUM-1;j++)
{
EE_ADDR = START_ADDR + j;
EE_DATA = EEBuf[j];
EE_CMD(0xA0, EE_ADDR);
for(i = 0;i <= 7; i++)
{
clrbit(PORTC,EE_SCL);
if ((EE_DATA & 0x80) > 0) setbit(PORTC,EE_SDA);
else clrbit(PORTC,EE_SDA);
setbit(PORTC,EE_SCL);
EE_DATA = EE_DATA<<1;
}
// Acknowledge clock
clrbit(PORTC,EE_SCL);
setbit(PORTC,EE_SCL);
// Stop bit
clrbit(PORTC,EE_SCL);
clrbit(PORTC,EE_SDA);
setbit(PORTC,EE_SCL);
setbit(PORTC,EE_SDA);
DDRC=0x2c;
// Acknowledge polling
clrbit(PORTC,EE_SCL);
k = 0;
setbit(PORTC,EE_SCL);
while (chkbit(PINC,EE_SDA) && (k < 1000))
{
// clrbit(PORTC,EE_SCL);
k++;
asm("wdr");//clear watchdog counter.
// setbit(PORTC,EE_SCL);
}
DDRC=0x3c;
}
}
void LOAD_EEPROM1(ushort START_ADDR, ushort NUM)
{
for (j = 0; j <= NUM-1;j++)
{
EE_DATA = 0;
EE_ADDR = START_ADDR + j;
EE_CMD(0xA0, EE_ADDR);
// Start bit
clrbit(PORTC,EE_SCL);
setbit(PORTC,EE_SDA);
setbit(PORTC,EE_SCL);
clrbit(PORTC,EE_SDA);
// Random read contro2l byte
for( i = 0 ;i <= 7;i++)
{
clrbit(PORTC,EE_SCL);
switch(i)
{
case 0:
case 2:
case 7:setbit(PORTC,EE_SDA);break;
case 1:
case 3:
case 4:
case 5:clrbit(PORTC,EE_SDA);break;
case 6:
if(j > 0xFF) setbit(PORTC,EE_SDA);
else clrbit(PORTC,EE_SDA);
}
setbit(PORTC,EE_SCL);
}
// Acknowledge clock
clrbit(PORTC,EE_SCL);
setbit(PORTC,EE_SCL);
DDRC=0x2c;
for(i = 0;i<= 7;i++)
{
clrbit(PORTC,EE_SCL);
EE_DATA = EE_DATA << 1;
if (chkbit(PINC,EE_SDA))
EE_DATA = EE_DATA | 1;
setbit(PORTC,EE_SCL);
}
clrbit(PORTC,EE_SCL);
setbit(PORTC,EE_SDA);
setbit(PORTC,EE_SCL);
EEBuf[j] = EE_DATA;
DDRC=0x3c;
// Stop bit
clrbit(PORTC,EE_SCL);
clrbit(PORTC,EE_SDA);
setbit(PORTC,EE_SCL);
setbit(PORTC,EE_SDA);
asm("wdr");//clear watchdog counter.
}
}
void test_Init()
{
EEBuf[0] = 0xaa;
for(l=0;l<511;l++) UPDATE_EEPROM1(l,1);
l=0;
for(;;){
LOAD_EEPROM1(l,1);
if(EEBuf[0] == 0xaa){
EEBuf[0] = 0;
l = (l+1)%512;
if(l==511) return;
}
else for(;;);
}
}
#endif
**********************************************************************/
void UPDATE_EEPROM(uint START_ADDR, uint NUM)
{//保存的數(shù)據(jù)同時保存到1,2區(qū).
#ifdef __DEBUG_FLAG__
return;
#else
uint v1;//,offset;
uchar *cpstr,len,i, cReg,cReg1;//pstr_h
cReg = UCSR0B;
cReg1 = UCSR1B;
UCSR0B = 0;
UCSR1B = 0;
if(/*(START_ADDR >= EE_EQUIPINFO) &&*/ (START_ADDR < EE_NETPARA))
{
cpstr = (uchar *) &EqInfo;
len = sizeof(EqInfo);
//pstr_h = START_ADDR - EE_EQUIPINFO;
//offset = EE_EQUIPINFO + len;
}
else if((START_ADDR >= EE_NETPARA) && (START_ADDR < EE_NETPARA1))
{
cpstr = (uchar *) &NetPara;
len = sizeof(NetPara);
//pstr_h = START_ADDR - EE_NETPARA;
//offset = EE_NETPARA + len;
}
else if((START_ADDR >= EE_NETPARA1) && (START_ADDR < EE_NETPARA2))
{
cpstr = (uchar *) &NetPara1;
len = sizeof(NetPara1);
//pstr_h = START_ADDR - EE_NETPARA1;
//offset = EE_NETPARA + len;
}
else if((START_ADDR >= EE_NETPARA2) && (START_ADDR < EE_CONPARA))
{
cpstr = (uchar *) &NetPara2;
len = sizeof(NetPara2);
//pstr_h = START_ADDR - EE_NETPARA2;
//offset = EE_NETPARA + len;
}
else if((START_ADDR >= EE_CONPARA) && (START_ADDR < EE_FACTORY))
{
cpstr = (uchar *) &ConPara;
len = sizeof(ConPara);
//pstr_h = START_ADDR - EE_CONPARA;
//offset = EE_CONPARA + len;
}
else if((START_ADDR >= EE_FACTORY) && (START_ADDR < EE_CCMCOBJMAPPING))
{
//cpstr = (uchar *) &RptPara;
//len = sizeof(RptPara);
//pstr_h = START_ADDR - EE_FACTORY;
//offset = EE_FACTORY + len;
return;
}
else if((START_ADDR >= EE_CCMCOBJMAPPING) && (START_ADDR < EE_ALARMPROC))
{
cpstr = (uchar *) &CMCCObjMapping;
len = sizeof(CMCCObjMapping);
}
else if((START_ADDR >= EE_ALARMPROC))
{
cpstr = (uchar *) &AlarmProcPara;
len = sizeof(AlarmProcPara);
}
// else if((START_ADDR >= EE_CCMCOBJMAPPING))
// {
// cpstr = (uchar *) &CMCCObjMapping;
// len = sizeof(CMCCObjMapping);
// //pstr_h = START_ADDR - EE_CCMCOBJMAPPING;
// //offset = EE_CCMCOBJMAPPING + len;
// }
v1 = crc_fun(0, cpstr, len); //計算檢驗和
//for(i = 0; i < NUM; i++) EEBuf[i] = cpstr[pstr_h+i];
for(i = 0; i < NUM; i++) EEBuf[i] = cpstr[i];
EEBuf[NUM] = v1 & 0xff;
EEBuf[NUM+1] = (v1 >> 8) & 0xff;
WRITE_EEPROM( __BACKUP_AREA0__ + START_ADDR, NUM+2);
#ifdef __BACKUP_E2PROM__
WRITE_EEPROM( __BACKUP_AREA1__ + START_ADDR, NUM+2);
#endif
/* WRITE_EEPROM( __BACKUP_AREA0__ + START_ADDR, NUM);
#ifdef __BACKUP_E2PROM__
WRITE_EEPROM( __BACKUP_AREA1__ + START_ADDR, NUM);
#endif
EEBuf[0] = v1 & 0xff;
EEBuf[1] = (v1 >> 8) & 0xff;
WRITE_EEPROM( __BACKUP_AREA0__ + offset, 2);
#ifdef __BACKUP_E2PROM__
WRITE_EEPROM( __BACKUP_AREA1__ + offset, 2);
#endif*/
UCSR0B = cReg;
UCSR1B = cReg1;
#endif
}
uchar LOAD_EEPROM(uint START_ADDR, uint NUM)
{
#ifdef __DEBUG_FLAG__
return 0;
#else
uint v1, v2;
uchar ok = 0;
READ_EEPROM( __BACKUP_AREA0__ + START_ADDR, NUM+2);
v1 = crc_fun(0, EEBuf, NUM);
v2 = EEBuf[NUM] + (EEBuf[NUM+1]<<8);
if(v1 == v2) ok = 1;
#ifdef __BACKUP_E2PROM__
READ_EEPROM( __BACKUP_AREA1__ + START_ADDR, NUM+2);
v1 = crc_fun(0, EEBuf, NUM);
v2 = EEBuf[NUM] + (EEBuf[NUM+1]<<8);
if(v1 == v2) ok = ok+2;
if(ok == 1)
{//第一區(qū)的數(shù)據(jù)正確,第二區(qū)數(shù)據(jù)錯誤, 用1區(qū)數(shù)據(jù)覆蓋2區(qū)數(shù)據(jù)
READ_EEPROM( __BACKUP_AREA0__ + START_ADDR, NUM+2);
WRITE_EEPROM( __BACKUP_AREA1__ + START_ADDR, NUM+2);
return 1;
}
else if(ok == 2)
{//1區(qū)數(shù)據(jù)錯誤,2區(qū)數(shù)據(jù)正確, 用2區(qū)數(shù)據(jù)覆蓋1區(qū)數(shù)據(jù)
READ_EEPROM( __BACKUP_AREA1__ + START_ADDR, NUM+2);
WRITE_EEPROM( __BACKUP_AREA0__ + START_ADDR, NUM+2);
return 1;
}
else if(ok == 3) //1,2區(qū)的數(shù)據(jù)全部正確
return 1;
#else
if(ok)
return 1;
#endif
return 0;
#endif
}
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