rt-thread/bsp/nv32f100x/lib/src/eeprom.c

#include "flash.h"
#include "eeprom.h"
#include <string.h>

/******************************************************************************
* Global variables
******************************************************************************/

/******************************************************************************
* Constants and macros
******************************************************************************/


/******************************************************************************
* Local types
******************************************************************************/

/******************************************************************************
* Local function prototypes
******************************************************************************/

/******************************************************************************
* Local variables
******************************************************************************/

/******************************************************************************
* Local functions
******************************************************************************/


/******************************************************************************
*
* EEPROM <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>eeprom
*<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ַ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>adr<EFBFBD><EFBFBD><EFBFBD>ڵ<EFBFBD>512bytes eeprom
*
******************************************************************************/
uint16_t Adress_Js(uint32_t adr)
{
    uint16_t err = EEPROM_ERR_SUCCESS;

  
    if(adr & 0x03)
    {
        err = EEPROM_ERR_INVALID_PARAM;
	return (err);
	}
  
    if(adr >1024)
    {
        err=EEPROM_ADR_OverFlow;
      return(err);
    }
    return(err);
}

/******************************************************************************
*
* EEPROM <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>eeprom
*<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ַ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>adr<EFBFBD><EFBFBD><EFBFBD>ڵ<EFBFBD>512bytes eeprom
*
******************************************************************************/


uint16_t EEPROM_Erase(uint32_t adr)
{
    uint16_t err = EEPROM_ERR_SUCCESS;
    uint32_t e_adr;

     if(adr & 0x03)
    {
        err = EEPROM_ERR_INVALID_PARAM;
	return (err);
	}
  
    if(adr >1024)
    {
        err=EEPROM_ADR_OverFlow;
    
      return(err);
    }
    
    e_adr=adr+EEPROM_START_ADR;
    err = Flash_EraseSector(e_adr);  
    return(err);
}

/******************************************************************************
*
* EEPROM <EFBFBD><EFBFBD>ȡ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȡ<EFBFBD><EFBFBD>ַ<EFBFBD><EFBFBD><EFBFBD>ڵ<EFBFBD>eeprom
*<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ַ
*
******************************************************************************/
uint32_t EEPROM_Read(uint32_t adr)
{
    uint16_t err = EEPROM_ERR_SUCCESS;
    uint32_t e_adr;
    uint32_t data;
    
    if(adr & 0x03)
    {
        err = EEPROM_ERR_INVALID_PARAM;
	return (err);
	}
  
    if(adr >1024)
    {
        err=EEPROM_ADR_OverFlow;
      return(err);
    }
    
    e_adr=adr+EEPROM_START_ADR;
    data = M32(e_adr);
    return(data);
    
}
/******************************************************************************
*
* EEPROM д<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>д<EFBFBD><EFBFBD>ַ<EFBFBD><EFBFBD><EFBFBD>ڵ<EFBFBD>eeprom
*д֮ǰ<EFBFBD><EFBFBD>ȡ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ж<EFBFBD>eeprom<EFBFBD>Ƿ<EFBFBD>Ϊ<EFBFBD>գ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD>գ<EFBFBD><EFBFBD><EFBFBD>ֱ<EFBFBD><EFBFBD>д
*<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ǿգ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ȱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>512bytes sector<EFBFBD><EFBFBD>ȡ<EFBFBD><EFBFBD>sram<EFBFBD><EFBFBD><EFBFBD>޸<EFBFBD>Ҫд<EFBFBD><EFBFBD>λ<EFBFBD><EFBFBD>
*Ȼ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>д<EFBFBD>뵽flash<EFBFBD><EFBFBD>ģ<EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD>eeprom<EFBFBD><EFBFBD>д<EFBFBD><EFBFBD><EFBFBD><EFBFBD>
*<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ַ
*
******************************************************************************/
uint16_t EEPROM_Write(uint32_t adr, uint32_t Data)
{
  
    uint32_t err = EEPROM_ERR_SUCCESS;
    uint32_t e_adr;
    uint32_t r_data;
    uint16_t i;
    uint32_t start_adr;
 //   uint32_t modify_adr;
    uint32_t EEPROM_DATA[128];

    if(adr & 0x03)
    {
        err = EEPROM_ERR_INVALID_PARAM;
	return (err);
	}
  
    if(adr >1024)
    {
        err=EEPROM_ADR_OverFlow;
      return(err);
    }

    
    r_data = EEPROM_Read(adr);
    
    e_adr=adr+EEPROM_START_ADR;

    if(r_data== EEPROM_BLANK) //<2F><><EFBFBD><EFBFBD>Ҫд<D2AA><D0B4>λ<EFBFBD><CEBB><EFBFBD>ǿյģ<D5B5><C4A3><EFBFBD>ֱ<EFBFBD><D6B1>д
    {
      err= Flash_Program1LongWord(e_adr,Data);
    }
   else if((r_data&Data) == Data)//<2F><><EFBFBD><EFBFBD>Ҫд<D2AA><D0B4>λ<EFBFBD>ö<EFBFBD>Ӧ<EFBFBD><D3A6>bit<69><74><EFBFBD><EFBFBD>Ҫд<D2AA><D0B4><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD>£<EFBFBD><C2A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>1<EFBFBD><31>Ҳ<EFBFBD>ǿ<EFBFBD><C7BF><EFBFBD>ֱ<EFBFBD><D6B1>д
     {
      err= Flash_Program1LongWord(e_adr,Data);
    }
    else if(r_data == Data) //<2F><><EFBFBD><EFBFBD>Ҫд<D2AA><D0B4><EFBFBD><EFBFBD><EFBFBD>ݺ<EFBFBD><DDBA><EFBFBD><EFBFBD>е<EFBFBD><D0B5><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD>£<EFBFBD><C2A3>Ͳ<EFBFBD><CDB2><EFBFBD><EFBFBD><EFBFBD><EFBFBD>κβ<CEBA><CEB2><EFBFBD><EFBFBD><EFBFBD>ֱ<EFBFBD>ӷ<EFBFBD><D3B7><EFBFBD>
    {
      return(err);
    }
    else
    {
        start_adr = e_adr & EEPROM_SECTOR_MASK; //<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>sector<6F><72>ͷ<EFBFBD><CDB7>ַ    
        
        for( i=0;i<128;i++ ) //<2F><><EFBFBD><EFBFBD>Ҫд<D2AA><D0B4>λ<EFBFBD>ò<EFBFBD>Ϊ<EFBFBD>գ<EFBFBD><D5A3><EFBFBD><EFBFBD>Ȱ<EFBFBD>flash<73><68><EFBFBD>ݶ<EFBFBD>ȡ<EFBFBD><C8A1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>sram<61>У<EFBFBD><D0A3>޸<EFBFBD>
        {
          EEPROM_DATA[i] = M32(start_adr + 4*i);
        }
            
        EEPROM_DATA[(adr&EEPROM_ARRAY_ADR_MASK)>>2] = Data; //<2F>޸<EFBFBD>SRAM <20>е<EFBFBD><D0B5><EFBFBD><EFBFBD><EFBFBD>
        
        err=EEPROM_Erase(adr);
     
        err=Flash_Program(start_adr,(uint8_t*)EEPROM_DATA,512);//Ȼ<><C8BB>д<EFBFBD><D0B4>flash
    }
    return(err);
    
}

/******************************************************************************
*
*Byte д<EFBFBD><EFBFBD><EFBFBD><EFBFBD>
*
******************************************************************************/
uint16_t EEPROM_WriteByte(uint32_t adr, uint8_t Data)
{
    uint32_t err = EEPROM_ERR_SUCCESS;
    uint32_t data_mask;
    uint32_t r_data;
    uint32_t data_m0;
    uint32_t data_m1;
    uint32_t word_adr = adr &0x3fc;
    uint32_t  b_sit= adr & 0x3;
    

 //<2F><><EFBFBD>ø<EFBFBD>λΪFF
    data_m0 = Data << b_sit*8;   
    data_mask = 0xFFFFFFFF<<(b_sit+1)*8;    
//   printf("datam0:=0x%x \n",data_m0);    
//Ȼ<><C8BB><EFBFBD>õ<EFBFBD>λΪFF    
     data_m1 = 0xFFFFFFFF >> (32-b_sit*8);
     data_m1 = data_m1 | data_m0 | data_mask ;
     
//    printf("datam1:=0x%x \n",data_m1);  
    
    r_data = EEPROM_Read(word_adr);
//    printf("r_data:=0x%x \n",r_data);        
//<2F><><EFBFBD><EFBFBD>ԭ<EFBFBD><D4AD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>    
    data_m1 = data_m1 & r_data;
		
    
//    printf("data_m1:=0x%x \n",data_m1);     ;           
    err = EEPROM_Write(word_adr , data_m1);
    
    return(err);

}

/******************************************************************************
*
*Byte <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
*
******************************************************************************/
uint8_t EEPROM_ReadByte(uint32_t adr)
{
   uint32_t r_data;
   uint32_t word_adr = adr &0x3fc;
   uint32_t b_sit= adr & 0x3;
   uint8_t  data;
   
    r_data = EEPROM_Read(word_adr);
    data = (r_data>>b_sit*8)& 0xff;
    return(data);
   
   
}


/******************************************************************************
*
*д<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>дһ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊbytesize<EFBFBD><EFBFBD><EFBFBD><EFBFBD>eeprom
*<EFBFBD>Ȱ<EFBFBD>1k<EFBFBD><EFBFBD>eeprom<EFBFBD><EFBFBD>ȡ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>sram<EFBFBD><EFBFBD>Ȼ<EFBFBD><EFBFBD><EFBFBD>޸<EFBFBD>Ҫд<EFBFBD><EFBFBD>λ<EFBFBD>ã<EFBFBD>
*<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ǻ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ż<EFBFBD><EFBFBD><EFBFBD>
*<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ĺ<EFBFBD><EFBFBD><EFBFBD>û<EFBFBD>п<EFBFBD><EFBFBD><EFBFBD>2K eeprom <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>2K Ҳ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȫ<EFBFBD><EFBFBD><EFBFBD>Եġ<EFBFBD>
******************************************************************************/
uint16_t EERPOM_Writeup4byte(uint32_t adr,uint8_t *pData,uint32_t length)
{
	uint8_t buf[512];
	uint8_t *pbuf;
	uint32_t e_adr;
	uint32_t e_sec;
	uint32_t e_offset;
	uint32_t a;
	uint32_t err = EEPROM_ERR_SUCCESS;
	
   #ifdef IAR
    if(adr & 0x03)
    {
        err = EEPROM_ERR_INVALID_PARAM;
	      return (err);
	   }
    #endif
  
    if((adr + length )>1024)
    {
        err=EEPROM_ADR_OverFlow;
      return(err);
    }
    
	e_adr=adr+EEPROM_START_ADR;
	e_sec=e_adr & EEPROM_SECTOR_MASK;
	e_offset=e_adr & 0x1ff;

	
	while (length>0){
          //<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʼ<EFBFBD><CABC>ַ<EFBFBD><D6B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD>0<EFBFBD><30><EFBFBD><EFBFBD><EFBFBD>߳<EFBFBD><DFB3><EFBFBD>С<EFBFBD><D0A1>512 <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ѭ<EFBFBD><D1AD>
		if (e_offset||(length<512)){
			pbuf=buf;
			a=512-e_offset;
			a=(length>a?a:length);
			
			memcpy(buf,(uint8_t*)e_sec,512);
			memcpy(&buf[e_offset],pData,a);
			pData+=a;
			length-=a;
			e_offset=0;

		}else{ //<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʼ<EFBFBD><CABC>ַ<EFBFBD><D6B7><EFBFBD><EFBFBD>0<EFBFBD>ҳ<EFBFBD><D2B3>ȴ<EFBFBD><C8B4><EFBFBD>512 <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
			pbuf=pData;
			pData+=512;
			length-=512;
		}
		err=Flash_EraseSector(e_sec);
		err=Flash_Program(e_sec,(uint8_t*)pbuf,512);//Ȼ<><C8BB>д<EFBFBD><D0B4>flash
		e_sec+=0x200;
	}
	return err;
}


/*
uint16_t EERPOM_Writeup4byte(uint32_t adr,uint8_t *pData,uint32_t bytesize)
{
    uint32_t err = EEPROM_ERR_SUCCESS;
    uint32_t e_adr;
    uint16_t i;
    uint32_t start_adr;
    uint32_t EEPROM_DATA[256];
    uint32_t longword = bytesize >>2;
    uint32_t *pwData = (uint32_t*)pData ;
    
    err=Adress_Js(adr);
    
    if(adr+bytesize >1024) //<2F><><EFBFBD><EFBFBD>д<EFBFBD><D0B4><EFBFBD>ĵ<EFBFBD>ַ,<2C><><EFBFBD><EFBFBD>Ҫд<D2AA><D0B4><EFBFBD><EFBFBD><EFBFBD>ݵĸ<DDB5><C4B8><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>1024<32><34><EFBFBD>򱨴<EFBFBD>
    {
      err = EEPROM_ADR_OverFlow;
      return(err);
    }
    
    e_adr=adr+EEPROM_START_ADR;
    
    start_adr = e_adr & EEPROM_SECTOR_MASK; //<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>sector ͷ<><CDB7>ַ

    for( i=0;i<256;i++ ) //<2F>Ȱ<EFBFBD><C8B0><EFBFBD><EFBFBD>ݶ<EFBFBD>ȡ<EFBFBD><C8A1>sram
      {
        EEPROM_DATA[i] = M32(start_adr + 4*i);
        }
    for( i=0 ;i<longword ;i++) //Ȼ<><C8BB><EFBFBD>޸<EFBFBD>Ҫд<D2AA>ĵ<EFBFBD>ַ
      {
        EEPROM_DATA[(adr>>2)+i] = *pwData++;
      }
     //<2F><>erase<73><65>2<EFBFBD><32>eeprom secoter     
     err=EEPROM_Erase(0x000);
     err=EEPROM_Erase(0x200);   
      
    err=Flash_Program(start_adr,(uint8_t*)EEPROM_DATA,1024);//Ȼ<><C8BB>д<EFBFBD><D0B4>flash
    
    return(err);
}
*/