/* Enables or disables the PLL. The PLL can not be disabled if it is used as system clock.  */
void RCC_PLLCmd(FunctionalState NewState)
/* Enables or disables the PLL. The PLL can not be disabled if it is used as system clock.  */
void RCC_PLLCmd(FunctionalState NewState)
{
    assert_param(IS_FUNCTIONAL_STATE(NewState));
    if (NewState != DISABLE)
    {
        RCC->CR |= 0x01000000;
    }
    else
    {
        RCC->CR &= 0xfeffffff;
    }
}