/* Configures the PLL clock source and multiplication factor.  */
void RCC_PLLConfig(uint32_t RCC_PLLSource, uint32_t RCC_PLLMul)
/* Configures the PLL clock source and multiplication factor.  */
void RCC_PLLConfig(uint32_t RCC_PLLSource, uint32_t RCC_PLLMul)
{
    assert_param(IS_RCC_PLL_SOURCE(RCC_PLLSource));
    assert_param(IS_RCC_PLL_MUL(RCC_PLLMul));
    RCC->CFGR &= ~(RCC_CFGR_PLLMUL | RCC_CFGR_PLLSRC);
    RCC->CFGR |= (uint32_t)(RCC_PLLSource | RCC_PLLMul);
}