//main
uint8_t zapal = 0;
uint8_t pushCount = 0;

while (1)
  {
      if(zapal)
          HAL_GPIO_WritePin(GPIOA, GPIO_PIN_5, GPIO_PIN_SET);
      else
          HAL_GPIO_WritePin(GPIOA, GPIO_PIN_5, GPIO_PIN_RESET);
  }

//sysTick

extern uint8_t pushCount;
extern uint8_t zapal;
uint32_t time_ms = 0;

void SysTick_Handler(void)
{
  /* USER CODE BEGIN SysTick_IRQn 0 */
  /* USER CODE END SysTick_IRQn 0 */
  HAL_IncTick();
  HAL_SYSTICK_IRQHandler();
  /* USER CODE BEGIN SysTick_IRQn 1 */
  time_ms++;
  if(!HAL_GPIO_ReadPin(GPIOC, GPIO_PIN_13))
  {

      pushCount++;

      if(pushCount > 3)
          pushCount = 1;
  }

  if(pushCount == 1 && time_ms > 500) // 1Hz
  {
      if(zapal)
          zapal = 0;
      else
          zapal = 1;
      time_ms = 0;
  }

  if(pushCount == 2 && time_ms > 250) // 2Hz
  {
      if(zapal)
          zapal = 0;
      else
          zapal = 1;
      time_ms = 0;
  }

  if(pushCount == 3 && time_ms > 125) // 4Hz
  {
      if(zapal)
          zapal = 0;
      else
          zapal = 1;
      time_ms = 0;
  }