/*        Enables the Internal High Speed oscillator (HSI).*/
                RCC_HSICmd(ENABLE);
@brief  Enables or disables the Internal High Speed oscillator (HSI).
void RCC_HSICmd(FunctionalState NewState)
{
  /* Check the parameters */
  assert_param(IS_FUNCTIONAL_STATE(NewState));

  *(__IO uint32_t *) CR_HSION_BB = (uint32_t)NewState;
}
                /* Enable HSI */
                RCC->CR |= ((uint32_t)RCC_CR_HSION);
这两种有什么不同吗？