stm32 Nucleo-L011K4 i2c acknowledgement failure

I am trying to read accelerometer data over i2c. The i2c address of the accelerometer is 0x19 for reading and 0x18 for writing. To check for correct communication with the accelerometer, I should read register 0x00 and it must return 0x12 as the result. But I am not able to get acknowledgement from the accelerometer. I am using the HAL libraries and code generated using CubeMX. Here is the code:

#include "main.h"
#include "stm32l0xx_hal.h"

I2C_HandleTypeDef hi2c1;

void SystemClock_Config(void);
void Error_Handler(void);
static void MX_GPIO_Init(void);
static void MX_I2C1_Init(void);


uint8_t data[2];
uint8_t result;


int main(void)
{
    HAL_Init();

    /* Configure the system clock */
    SystemClock_Config();

    /* Initialize all configured peripherals */
    MX_GPIO_Init();
    MX_I2C1_Init();

    while (1)
    {

          //    HAL_I2C_Mem_Read_DMA(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint16_t MemAddress, uint16_t MemAddSize, uint8_t *pData, uint16_t Size)
                HAL_I2C_Mem_Read_DMA(&hi2c1, 0x19, 0x00, 1, &result, 1);
                HAL_Delay(100);
     }
}

 void SystemClock_Config(void)
{

  RCC_OscInitTypeDef RCC_OscInitStruct;
  RCC_ClkInitTypeDef RCC_ClkInitStruct;
  RCC_PeriphCLKInitTypeDef PeriphClkInit;

  /**Configure the main internal regulator output voltage  */
  __HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE1);

   /**Initializes the CPU, AHB and APB busses clocks  */
  RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_MSI;
  RCC_OscInitStruct.MSIState = RCC_MSI_ON;
  RCC_OscInitStruct.MSICalibrationValue = 0;
  RCC_OscInitStruct.MSIClockRange = RCC_MSIRANGE_5;
  RCC_OscInitStruct.PLL.PLLState = RCC_PLL_NONE;
  if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
  {
    Error_Handler();
  }

    /**Initializes the CPU, AHB and APB busses clocks */

  RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK
                          |RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2;
  RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_MSI;
  RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
  RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV1;
  RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;

  if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_0) != HAL_OK)
  {
    Error_Handler();
  }

  PeriphClkInit.PeriphClockSelection = RCC_PERIPHCLK_I2C1;
  PeriphClkInit.I2c1ClockSelection = RCC_I2C1CLKSOURCE_PCLK1;
  if (HAL_RCCEx_PeriphCLKConfig(&PeriphClkInit) != HAL_OK)
  {
     Error_Handler();
  }

  /**Configure the Systick interrupt time   */
  HAL_SYSTICK_Config(HAL_RCC_GetHCLKFreq()/1000);

   /**Configure the Systick    */
   HAL_SYSTICK_CLKSourceConfig(SYSTICK_CLKSOURCE_HCLK);

  /* SysTick_IRQn interrupt configuration */
   HAL_NVIC_SetPriority(SysTick_IRQn, 0, 0);
}

/* I2C1 init function */
static void MX_I2C1_Init(void)
{

   hi2c1.Instance = I2C1;
   hi2c1.Init.Timing = 0x00000708;
   hi2c1.Init.OwnAddress1 = 0x18;
   hi2c1.Init.AddressingMode = I2C_ADDRESSINGMODE_7BIT;
   hi2c1.Init.DualAddressMode = I2C_DUALADDRESS_DISABLE;
   hi2c1.Init.OwnAddress2 = 0;
   hi2c1.Init.OwnAddress2Masks = I2C_OA2_NOMASK;
   hi2c1.Init.GeneralCallMode = I2C_GENERALCALL_DISABLE;
   hi2c1.Init.NoStretchMode = I2C_NOSTRETCH_DISABLE;
   if (HAL_I2C_Init(&hi2c1) != HAL_OK)
   {
     Error_Handler();
   }

     /**Configure Analogue filter  */
   if (HAL_I2CEx_ConfigAnalogFilter(&hi2c1, I2C_ANALOGFILTER_ENABLE) != HAL_OK)
   {
     Error_Handler();
   }

 }

 static void MX_GPIO_Init(void)
 {

   /* GPIO Ports Clock Enable */
   __HAL_RCC_GPIOC_CLK_ENABLE();
   __HAL_RCC_GPIOA_CLK_ENABLE();

 }

2 external pull up resistors of 4,7kOhms are used.

mc pins: https://developer.mbed.org/platforms/ST-Nucleo-L011K4/

pins D4 and D5 to SDA and SCL respectively. GND and 3.3V are connected to accelerometers respective power connections.

The SDA pin of board is PB7 and SCL pin is PB6. However, you don't initialize these pins clock. You should enable port B clock in MX_GPIO_Init function.

static void MX_GPIO_Init(void)
 {

   /* GPIO Ports Clock Enable */
   __HAL_RCC_GPIOC_CLK_ENABLE();
   __HAL_RCC_GPIOA_CLK_ENABLE();
   __HAL_RCC_GPIOB_CLK_ENABLE();

 }

You should set OwnAddress1 to 0 in MX_I2C1_Init function.

hi2c1.Init.OwnAddress1 = 0;

Also read address should be 0x18 in HAL_I2C_Mem_Read_DMA or HAL_I2C_Mem_Read function. I am not sure Timing is correct. Most of I2C devices clock speed is between 100-400Khz. What is your I2C device clock speed? You can try at 100 or 400Khz.

hi2c1.Init.Timing = 400000;