when i write or read it show hal_ok..if(HAL_I2C_Mem_Write(&hi2c2, 0xA0, 0, 1, eeprom_tx_buff, 1,15) == HAL_OK) HAL_GPIO_WritePin(GPIOB, GPIO_PIN_3, GPIO_PIN_RESET);It shows hal_ok .if(HAL_I2C_Mem_Read(&hi2c2, 0xA1, 0, 1, eeprom_tx_buff, 1,15) == HA...