How to store large integer value greater than 255 at particular location in eeprom(Solved))

[kumar123]

Hi,
I want to store large number at these two below location in eeprom
0x0000, 0x0001

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data_size++; (it could be around 65535 bytes)
EEPROM_Write(0x0000, data_size & 0xFFFF);
EEPROM_Write( 0x0001, (data_size >> 8) & 0xffff);

Is the above code is right?
If wrong please let me know the correct way.

Regards,
Kumar

[kumar123]

Hi,

Problem has been solved.

Regards,
Kumar

[mia02]

Could you please share the solution.

[kumar123]

Hi,
This is the piece of code which i took it from the internet:

Code: Select all

unsigned char hi,lo;
//data_size any value greater than 255 it will store at these two below locations
hi = (unsigned char)(data_size >> 8);   // store location at 1 
lo = (unsigned char)data_size;     // store location at 1 
EEPROM_Write(0x0000, hi);
EEPROM_Write(0x0001, lo);

I hope this will help you!

Regards
Kumar

[paulfjujo]

hello,

more simple solution

The mikroC PRO for PIC compiler provides a set of useful built-in utility functions.
The Lo, Hi, Higher, Highest routines are implemented as macros. If you want to use these functions
you must include built_in.h header file (located in the include folder of the compiler) into your project.

example

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// to load TMR1 value 0x0BDB  ( 3035 decimal)
  TMR1H=  Hi (3035);
  TMR1L=  Lo (3035);

or for eeprom:
to store the value 32769 into Eeprom adresse 0 and 1

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unsigned int My_DAta;  //integer 16 bits  data 
My_Data = 32769 ; 

EEPROM_Write(0x0000, HI(My_Data);
EEPROM_Write(0x0001, Lo(My_Data);

another way : use pointer .

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unsigne int My_Data;
unsigned char *p1;
p1= &My_Data;
My_Data=32769;
EEPROM_Write(0x0000, *(p1));
EEPROM_Write(0x0001, *(p1+1));