/* Delay function to wait FLL stable. 
Delay function to wait FLL stable in FEI mode or FEE mode, should wait at least 1ms. Every time changes FLL setting, should wait this time for FLL stable.  */
static void CLOCK_FllStableDelay(void)
/* Delay function to wait FLL stable. 
Delay function to wait FLL stable in FEI mode or FEE mode, should wait at least 1ms. Every time changes FLL setting, should wait this time for FLL stable.  */
static void CLOCK_FllStableDelay(void)
{
    volatile uint32_t i = 30000U;
    while (i--)
    {
        __NOP();
    }
}