ADXL345 atmega16 - accelerometer

Question

i just started the project which requiers to connect ADXL345 to my Atmega16. I want to put device id on screen and read axis. So far i cant communicate with ADXL345. ON LCD only appears 0 I would be gratefull for any help.
#include <avr/io.h>
#include <stdlib.h>
#include <util/delay.h>
#include "hd44780.h"
#define F_CPU 1000000UL
/*-----------------------Rejestry ADXL345---------------------*/
char POWER_CTL = 0x2D; //Power Control Register 0x08 measurement
char DATA_FORMAT = 0x31;
char BW_RATE = 0X2C;
char FIFO = 0x38; //fifo ctl
char DATAX0 = 0x32; //X-Axis Data 0
char DATAX1 = 0x33; //X-Axis Data 1
char DATAY0 = 0x34; //Y-Axis Data 0
char DATAY1 = 0x35; //Y-Axis Data 1
char DATAZ0 = 0x36; //Z-Axis Data 0
char DATAZ1 = 0x37; //Z-Axis Data 1
char DEVICEID = 0x00;
#define Read_Byte_SPI( addr ) ADXL_write( 0x80 | addr , 0xFF );
/*------------------PORTY SPI---------------*/
#define SPI_CS PB4
#define DDR_SPI DDRB
#define DD_MOSI PB5
#define DD_MIOS PB6
#define DD_SCK PB7
/*vcc<->vs*/
//--------------------------------------Funkcje-------------------
unsigned int init_port(void) //ports 4 lcd
{DDRD =0x00; PORTD =0x07 ; }
/*function 4 lcd*/
static void lcd( int a){ LCD_LOCATE(2,0); char buff[2]; char tab[2]; /*itoa(a,buff,10);*/ sprintf(a, %d", buff); lcd_puts(buff);
}
/**
* This writes to a register with the data passed to the address passed
* #param unsigned char cReg - the address of the register you wish to write to
* #param unsigned char cData - the data you wish to write to the register
*/
unsigned char ADXL_write(unsigned char cReg, unsigned char cData){
set_spics();
/* Start transmission send register */
SPDR = cReg;
/* Wait for transmission complete */
while(!(SPSR & (1<<SPIF)))
{ /* NOOP */ }
SPDR = cData;
/* Wait for transmission complete */
while(!(SPSR & (1<<SPIF)))
{ /* NOOP */ }
clear_spics();
return SPDR;
}
uint8_t ADXL_read(unsigned char addr) { // read ADXL345 - 128+ addrs, back 8 bits - found this in another topic
int8_t ans;
set_spics();
SPDR = 0x08 | addr;
loop_until_bit_is_set(SPSR, SPIF);
SPDR = 0xFF;
loop_until_bit_is_set(SPSR, SPIF);
ans = SPDR;
clear_spics();
return(ans);}
//inicjalizacjia SPI
void Init_SPI(){
// make the MOSI, SCK, and SS pins outputs
DDRB |= ( 1 << DD_MOSI ) | ( 1 << DD_SCK ) | ( 1 << SPI_CS );
DDRB &= ~( 1 << DD_MIOS );
/* Enable SPI, Master, set clock rate fck/128 */
SPCR = (1<<SPE)|(1<<MSTR)|(1<<SPR0)|(1<<SPR1);
}
//Control SS=CHIP SELECT ADXL345
void clear_spics(){
PORTB |= _BV(SPI_CS); // high
_delay_ms(30);}
void set_spics(){
PORTB &=~ _BV(SPI_CS); // low
_delay_ms(30);}
void ADXL_init(void){
//init ADXL
ADXL_write(DATA_FORMAT,0x08); //pełna rozdzielczość DATASHEET STRONA 26 4SPI
ADXL_write(BW_RATE, 0x0A) ; //100hz
ADXL_write(POWER_CTL,0x08);
ADXL_write(FIFO, 0); //FIFO Wylacozny
}
/*------------------------główna petla---------------------------*/
int main(void)
{
/* tab for strings */
char str1[] = "Czujnik ADXL 345";
/* init lcd*/
lcd_init();
/* LCD UP */
LCD_DISPLAY(LCDDISPLAY);
LCD_CLEAR;
LCD_LOCATE(1,1);
lcd_puts(str1);
init_port();/*port init*/
Init_SPI();//SPIUP
_delay_ms(50);
ADXL_init(); //ADXL345 config
_delay_ms(50);
while(1)
{
int8_t k;
k=Read_Byte_SPI( DEVICEID );
lcd(k);
_delay_ms(5000);
k=ADXL_read(DATAX0);
lcd(k);
_delay_ms(5000);
}
`>