#include"stdint.h"
#include "stm32f407xx.h"

int main(void)
{
    ADC_TypeDef *pADC;
    RCC_TypeDef *pRCC;
    pADC=ADC1;
    pRCC=RCC;
    pRCC->APB2ENR=  pRCC->APB2ENR|(1<<8);
    pADC->CR1=0x55;
    return 0;

}