external eprom extrange read problem

[itzalak2]

Hi everybody.

I have an application where I read an external I2C eprom 24AA1025 (1Mega) . I have this read routine

int32 leer_int32_ext_eeprom_banco_0(EEPROM_ADDRESS_H address_h, EEPROM_ADDRESS_L address_l)
{
int1 ack;
i2c_start();
ack = i2c_write(0b10100000);
delay_ms (10);
i2c_stop();
if (ack==0)
{
int8 i;
int32 temporal=0;
int32 puntero=0;
i2c_start();
i2c_write(0b10100000);
delay_ms (10);
i2c_write(address_h);
delay_ms (10);
i2c_write(address_l);
delay_ms (10);
i2c_start();
i2c_write(0b10100001);
delay_ms (10);

for(i = 0; i < 4; ++i) //secuencial
{
*(&temporal + i) = i2c_read();
delay_ms (100);
}
i2c_stop();
return temporal;
}
}

and in the main program I read 3 different memory positions:

delay_ms(10);
maniobra_NS1=leer_int32_ext_eeprom_banco_0 (0x00,0x00);

delay_ms(10);
maniobra_NS2=leer_int32_ext_eeprom_banco_0 (0x00,0x04);

delay_ms(10);
maniobra_EW1=leer_int32_ext_eeprom_banco_0 (0xFF,0xFC);

If I read the 3 registers the first and the second returns a correct value but not the last.

If I erase the first and secodn read (maniobra_NS1 and maniobra_NS2) I the returned value of the 3th read is correct.

Any idea why happens it?

Thanks a lot.

I'm using pic 18f2525 and software I2c (I can't use hardware I2c becouse system hangs at init (don't know why)

Thanks again

[PCM programmer]