I am not reading the address of M24M02 E2prom

[ugurozkan52]

Hi,

I am using STM32F4-Discovery. I want to R/W M24M02 E2prom but not reading device address. Added code and datasheet. I tried AT24C256 E2prom other I2C devices by same code and it worked.

Thanks.

for(i=0; i<255; i++){
	if(HAL_I2C_IsDeviceReady(&hi2c3, (uint16_t)(i), 2, 100) == HAL_OK ){			 
 HAL_GPIO_TogglePin(GPIOD, GPIO_PIN_13);
	 break;
	}
	HAL_GPIO_TogglePin(GPIOD, GPIO_PIN_14);
	HAL_Delay(25);
}

[dbgarasiya]

may be hardware issue

[ugurozkan52]

Yes problem from HW. We had 3 m24m02 but 2 piece is broken.

Thank you.

[dbgarasiya]

All the best !