COMP — COMP_CompareGpioVsVrefint_Polling

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#include "main.h"

int main(void)
{
  /* Reset of all peripherals, Initializes the Systick */
  HAL_Init();                                                          

  hcomp1.Instance = COMP1;                                              /* Select COMP1 */
  hcomp1.Init.InputMinus      = COMP_INPUT_MINUS_VREFINT;               /* Negative input is VREF(1.2V) */
  hcomp1.Init.InputPlus       = COMP_INPUT_PLUS_IO3;                    /* Positive input is PA1 */
  hcomp1.Init.OutputPol       = COMP_OUTPUTPOL_NONINVERTED;             /* COMP1 polarity is non-inverted */
  hcomp1.Init.Mode            = COMP_POWERMODE_HIGHSPEED;               /* COMP1 power mode is set to High speed */
  hcomp1.Init.Hysteresis      = COMP_HYSTERESIS_DISABLE;                /* Hysteresis function is disabled */
  hcomp1.Init.WindowMode      = COMP_WINDOWMODE_DISABLE;                /* Window mode is disabled */
  hcomp1.Init.TriggerMode     = COMP_TRIGGERMODE_NONE;                  /* External trigger for COMP1 is disabled */
  hcomp1.Init.DigitalFilter   = 0;

  /*  Initialize COMP1 */
  if (HAL_COMP_Init(&hcomp1) != HAL_OK)                                 
  {
    APP_ErrorHandler();
  }
  /* Start COMP1 */
  HAL_COMP_Start(&hcomp1);                                              

  while (1)
  {
  }
}