AVR Freaks

Hello all,

I want to write 128byte to AT24C512 on Page0

but after writing about 30 byte the program stop and this is repeating  constantly.

I guess probably one Interrupt is cause of the problem

can every body help me?

my compiler is CodeVision 14.3

void twic_init(void)
{
// General TWIC initialization
// External Driver Interface: Off
// SDA Hold: Off
twi_init(&TWIC,false,TWI_SDAHOLD_OFF_gc);

// TWIC Master initialization
// Master interrupt: High Level
// Peripheral Clock frequency: 2000000 Hz
// SCL Rate: 100000 bps
// Real SCL Rate: 100000 bps, Error: 0.0 %
twi_master_init(&twic_master,&TWIC,TWI_MASTER_INTLVL_HI_gc,
    TWI_BAUD_REG(2000000,200000));

// TWIC Slave is disabled
TWIC.SLAVE.CTRLA=0;
}

// TWIC Master interrupt service routine
#pragma optsize- // optimize for speed
interrupt [TWIC_TWIM_vect] void twic_master_isr(void)
{
twi_master_int_handler(&twic_master);
 //PORTB_OUTTGL=0b000000010;
 //delay_ms(20);
}
#pragma optsize_default
#define EEPROM_TWI_BUS_ADDRESS (0b01010010 >> 0)
//#define EEPROM_TWI_BUS_ADDRESS (0b1101000 >> 0)
unsigned char eeprom_rd_data,page_number=0,temp_page=0,i=0;
struct
     {
     struct
          {
          unsigned char msb;
          unsigned char lsb;
          } addr;
     unsigned char data[128];
     } twi_eeprom;
     

void main(void){
{
// Declare your local variables here
unsigned char n;

// Interrupt system initialization
// Optimize for speed
#pragma optsize- 
// Make sure the interrupts are disabled
#asm("cli")
// Low level interrupt: Off
// Round-robin scheduling for low level interrupt: Off
// Medium level interrupt: Off
// High level interrupt: On
// The interrupt vectors will be placed at the start of the Application FLASH section
n=(PMIC.CTRL & (~(PMIC_RREN_bm | PMIC_IVSEL_bm | PMIC_HILVLEN_bm | PMIC_MEDLVLEN_bm | PMIC_LOLVLEN_bm))) |
    PMIC_HILVLEN_bm;
CCP=CCP_IOREG_gc;
PMIC.CTRL=n;
// Set the default priority for round-robin scheduling
PMIC.INTPRI=0x00;
// Restore optimization for size if needed
#pragma optsize_default

// System clocks initialization
system_clocks_init();

// Ports initialization
ports_init();

// Virtual Ports initialization
vports_init();

// TWIC initialization
twic_init();

// Globally enable interrupts
#asm("sei")
}

        for(i=0;i<128;i++){
        twi_eeprom.data[i]=i;
        PORTB_OUTTGL=0b00000100;
        delay_ms(20);
        }
        
        PORTA_OUT=0b00100000;
        PORTR_OUTSET=0b00000010;

while (1)
      {
        PORTA_OUTTGL=0b00000001;
        delay_ms(20);
        temp_page=page_number<<6;               //page start address
        twi_eeprom.addr.msb=(temp_page>>8);
        twi_eeprom.addr.lsb=(temp_page & 0x00FF); 
        twi_master_trans(&twic_master,EEPROM_TWI_BUS_ADDRESS,(unsigned char *) &twi_eeprom,2+128,0,0);
        

      }