What Does This Means In Programming

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1.00/5 (4 votes)

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0x00002 What Does This Means In Programming ? I Come Across It A whole Lot And Similar Numbers Like it Also.
Example :

C

#include "compiler.h"
#include "preprocessor.h"
#include "board.h"
#include "gpio.h"
#include "sysclk.h"
#include "at45dbx.h"
#include "conf_data_flash_example.h"
//Macros
#define 	TARGET_SECTOR   0x00002
 
''Functions
int 	main (void)
 	Main function. More...
 
void 	test_ko (void)
 
//Variables
uint8_t 	ram_buf [AT45DBX_SECTOR_SIZE]

#define TARGET_SECTOR   0x00002

Referenced by main().

Posted 5-Jul-14 9:40am

Keith.Harrie

Updated 5-Jul-14 11:16am

Mike Meinz

v2

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Mike Meinz · Answer 1 · 2014-07-05T11:15:00

Solution 2

The "0x" tells the compiler that you are stating the value in a hexadecimal format.

The compiler evaluates the 0x00002 to an integer of value 2.

The compiler uses an integer value of 2 whenever the name TARGET_SECTOR is referenced.

Posted 5-Jul-14 11:15am

Mike Meinz

PIEBALDconsult · Answer 2 · 2014-07-05T09:51:00

Solution 1

It means two.

Posted 5-Jul-14 9:51am

PIEBALDconsult

Comments

[no name] 5-Jul-14 16:31pm

Could you be more exact please? Thanks for the giggle.