how to know what hexadecimal my i2c is code example

Example: how to know what hexadecimal my i2c is

void I2C_Send7bitAddress(I2C_TypeDef* I2Cx, uint8_t Address, uint8_t I2C_Direction)
{
  /* Check the parameters */
  assert_param(IS_I2C_ALL_PERIPH(I2Cx));
  assert_param(IS_I2C_DIRECTION(I2C_Direction));
  /* Test on the direction to set/reset the read/write bit */
  if (I2C_Direction != I2C_Direction_Transmitter)
  {
	/* Shift the address one bit to the left */
	Address = Address << 1;
	/* Set the address bit0 for read */
	Address |= OAR1_ADD0_Set;
  }
  else
  {
	/* Shift the address one bit to the left */
	Address = Address << 1;
	/* Reset the address bit0 for write */
	Address &= OAR1_ADD0_Reset;
  }
  /* Send the address */
  I2Cx->DR = Address;
}