trying to interface stm32g4 with adxl345 . my connection with i2c is established(led on). but not getting values when debugged and checked

[ssib9]

 if(HAL_I2C_IsDeviceReady(&hi2c1,0xA6,3,100)==HAL_OK)

   {

      HAL_GPIO_WritePin(GPIOA,GPIO_PIN_5,GPIO_PIN_SET);

      HAL_Delay(500);

      HAL_GPIO_WritePin(GPIOA,GPIO_PIN_5,GPIO_PIN_RESET);

      HAL_Delay(500);

   }

   DATA_BUFF[0]=0x2D; //addr of POWER_CONTROL regiser

   DATA_BUFF[1]=0x08; //set bit3 for measure mode 0000 1000

   HAL_I2C_Master_Transmit(&hi2c1,0xA6,DATA_BUFF,2,100);

   memset(DATA_BUFF,0,6);

   DATA_BUFF[0]=0x31; //address of data_format   reg

   DATA_BUFF[1]=0x02; //set the device +/-8g range 0000 0010 //by puting range as 10

 HAL_I2C_Master_Transmit(&hi2c1,0xA6, DATA_BUFF,2,100);

   memset(DATA_BUFF,0,6);

   //HAL_I2C_Master_Transmit(&hi2c1,0x32, (uint8_t *)20,2,100);

 /* USER CODE END 2 */

 /* Infinite loop */

 /* USER CODE BEGIN WHILE */

 while (1)

 {

   /* USER CODE END WHILE */

      HAL_I2C_Mem_Read(&hi2c1,0xA7,0x32,1,(uint8_t *)data_rec,6,100); //read 6 bits from 0x32

   x = ((data_rec[1]<<8)|data_rec[0]); 

      y = ((data_rec[3]<<8)|data_rec[2]);

      z = ((data_rec[5]<<8)|data_rec[4]);

      HAL_Delay(100);

   /* USER CODE BEGIN 3 */

 }

 /* USER CODE END 3 */

}