Hello, I created a simple ADC project for the STM32F302R8, for polling operation it works, when I add an interrupt, the value is not read. I attach the code and ask for any suggestions.

[KSuch.3]

#include <stdint.h>

#include <stdio.h>

#include "stm32f302x8.h"

void delay1(void);

volatile uint32_t value;

int main(void)

{

   RCC->AHBENR = 1U<<28;

   RCC->AHBENR |= 1U<<17;

   GPIOA->MODER |= (1U<<8); //ADC1_IN5

   GPIOA->MODER |= (1U<<9);

   ADC1_COMMON->CCR &=~ (1U<<16);

   ADC1_COMMON->CCR &=~ (1U<<17);

   ADC1_COMMON->CCR |= (1U<<17); //HCLK/2

   ADC1->CFGR |= (1U<<13);

   ADC1->SQR1 |= 0;

   ADC1->SQR1 |= (5U<<6);  //ADC1_IN5

   ADC1->IER |=ADC_IER_EOCIE;

   NVIC_EnableIRQ(ADC1_IRQn);

   ADC1->CR &=~(1U<<29);

   ADC1->CR |= (1U<<28);

   ADC1->CR |= (1U<<0);

   delay1();

   ADC1->CR |= (1U<<2);

   while(1)

   {

   }

}

void delay1(void)

{

   for (int i=0;i<100000;i++)

   {

   }

}

void ADC1_IRQHandler(void)

{

   if((ADC1->ISR & ADC_ISR_EOC))

   {

      ADC1->ISR |= ADC_ISR_EOC;

      value = ADC1->DR;

   }

}