RCC->CR|=RCC_CR_HSEON;
while(!(RCC->CR&RCC_CR_HSERDY)){};	//wait for HSE

RCC->PLLCFGR|= RCC_PLLCFGR_PLLSRC_HSE;	//PLL source = HSE
RCC->PLLCFGR&= ~RCC_PLLCFGR_PLLM;	//clear PLLM
RCC->PLLCFGR|= RCC_PLLCFGR_PLLM_3;	//PLLM = 8
RCC->PLLCFGR&= ~RCC_PLLCFGR_PLLN;	//reset value 192 tak chto obnulyaem
RCC->PLLCFGR|= RCC_PLLCFGR_PLLN_3|RCC_PLLCFGR_PLLN_5|RCC_PLLCFGR_PLLN_6|RCC_PLLCFGR_PLLN_7;	//PLLN = 232
RCC->PLLCFGR&= ~RCC_PLLCFGR_PLLP;  //PLLP = 2 (is reset value 0x00)

RCC->CR|=RCC_CR_PLLON;
while(!(RCC->CR&RCC_CR_PLLRDY)){};
RCC->CFGR &=~RCC_CFGR_SW;
RCC->CFGR|=RCC_CFGR_SW_PLL;