//*****************************************************************************
//
// This function write data to SSI External Flash 
//
//*****************************************************************************
void SSIFlashWrite(uint32_t ulAddress, uint32_t ulLen,uint8_t *pucData)
{
	uint32_t ui32Index;
	uint8_t*ucData;
	uint32_t ulLength;
	
	ucData=pucData;
	ulLength=ulLen;
	
	SSILibSendPageProgram(SSI3_BASE,ulAddress,INS_PAGE_PROGRAM);
		
	for(ui32Index=0;ui32Index<ulLength;ui32Index++)
	{
			SSIDataPut(SSI3_BASE,ucData[ui32Index]);
			pui32DataTx[ui32Index]=ucData[ui32Index];
	}
		
		SSIAdvDataPutFrameEnd(SSI3_BASE,ucData[ulLength]);

}

//*****************************************************************************
//
// This function read data from SSI External Flash 
//
//*****************************************************************************
void SSIFlashRead(uint32_t ulAddress1, uint32_t ulLen1,uint8_t *puc1Data)
{
	uint32_t ui32Index;
	uint32_t ulAddress;
	uint8_t*ucData;
	uint32_t ulLength;
	
	ucData=puc1Data;
	ulLength=ulLen1;
	ulAddress=ulAddress1;
	
	
	SSILibSendReadDataAdvBi(SSI3_BASE,ulAddress,INS_READ_DATA);
	
	for(ui32Index=0;ui32Index<ulLength;ui32Index++)
	{
		
		SSIDataPut(SSI3_BASE,DUMMY_BYTE);
		SSIDataGet(SSI3_BASE,&pui32DataRx[ui32Index]);
		ucData[ui32Index] = pui32DataRx[ui32Index];
	}
	
	SSIAdvDataPutFrameEnd(SSI3_BASE,DUMMY_BYTE);
//  SSIDataGet(SSI3_BASE,&pui32DataRx[ui32Index]);
//	ucData[ui32Index] = pui32DataRx[ui32Index];	
	
}


/*****************************************************************************
//
// This function read Meter from SSI External Flash 
//
//*****************************************************************************	
void Meter_Data_read(void)	
{
    SSIFlashRead(0, DATA_LENGTH, (unsigned char *)(&Meter_data.First_boot));  

}

//*****************************************************************************
//
// This function write Meter data to SSI External Flash 
//
//*****************************************************************************	
void Meter_Data_write(void)
{
	SSILibSendEraseCommand(SSI3_BASE,0,INS_SECTOR_ERASE_4KB);
	SSIFlashWrite(0, DATA_LENGTH, (unsigned char *)(&Meter_data.First_boot));
	
}	




My structure

_packed struct Stored_Meter_data
{
	unsigned char First_boot;						//1		 //0
	float software_ver;								//4		 //1-4
	float hardware_ver;								//4		 //5-8
	unsigned int database_log_cnt;					//4		 //9-12
	unsigned char database_log_ov;					//1		 //13
	char Device_serial_no[11];						//11	 //14-24
	float PTRatio;									//4	 	 //25-28	
	float CTRatio;									//4		 //29-32
	char Port_no[6];								//5		 //33-38
	char ip_buffer[16];								//16	 //39-54
	char null_ip_position;							//1		 //55
	char port_position;								//1		 //56
	unsigned int total_log_cnt;						//4		 //57
	unsigned int reg_database_log_ov;			    //4		 //61
	unsigned int reg_log_cnt;						//4      //65
	unsigned char lattitude[10];					//10 	 //69
	unsigned char longitude[10];					//10     //79
	char lattitude_position;						//1      //89
	char longitude_position;                         //1     //90
	unsigned char E_key[16];						//16	 //91-106
	unsigned char A_key[16];						//16	 //107-122
	unsigned char D_key[16];					   //16		 //123-138
	unsigned char S_Title[8];					   //8		 //139-146
	unsigned char S_T[20];						   //20     //147-166 			
	unsigned char EKey0[20];					   //20		//167-186
	unsigned char EKey1[20];					   //20		//187-206
	unsigned char AKey0[20];					   //20		//207-226
	unsigned char AKey1[20];					   //20		//227-246
	unsigned char DKey0[20];					   //20		//247-266
	unsigned char DKey1[20];					   //20		//267-286

}Meter_data;	//-------------------------->>287