beginner simple question

Have you considered Arduino?

More than 6000 people work for ST in my surroundings. I have some friends among them. If they know that I don't work with STM32, they shot me down ;-)

I have a second question about CubeMx : in the pinout view (see JPG) you have the pin description of the MCU. But what I would like is to be able to parameter pins in CN4, CN5, CN6 and CN7; in fact the only pins that are connected to the 'outside' world. How can I have that ?

private message for Andy : I’m stubborn and I will succeed !!!

I have another question. I try to understand the GPIO toggle button example. In main.c there is a reference to GPIO_PIN_1. I am unable to see where it is defined !

What do I missed ?

Jean

STM32F7xx_hal_gpio.h

I am back after a hard work month.

here is the simple code I want to run. Questions are underneath.

  /* We should never get here as control is now taken by the scheduler */
  /* Infinite loop */
  /* USER CODE BEGIN WHILE */
  while (1)
  {

/* si on appuie sur le bouton, le clignotement est plus rapide */
    if (HAL_GPIO_ReadPin(bouton_poussoir_GPIO_Port, bouton_poussoir_Pin))
        {
      HAL_GPIO_TogglePin(GPIOI, GPIO_PIN_1);
      /* Insert delay 400 ms */
      HAL_Delay(400);
        }
        else
        {
      HAL_GPIO_TogglePin(GPIOI, GPIO_PIN_1);
      /* Insert delay 1000 ms */
      HAL_Delay(1000);
        }

    /* USER CODE END WHILE */

    /* USER CODE BEGIN 3 */
  }

questions :

As I wanted to go further in the future, I asked Keil to include RTOS.

What means the first two lines : the while(1) wille never be executed ?

My first attempt to build the project gave errors about configENABLE_TRUSTZONE  (#35: #error directive: configENABLE_TRUSTZONE must be defined in FreeRTOSConfig.h.). It is defined in FreeRTOS.h !!!! I haven't understand what trustzone safety is. May I turn it off ?

Second attempt gave me 137 errors. Most of them concern configASSERT: why ? :

../Middlewares/Third_Party/FreeRTOS/Source/event_groups.c(106): error:  #18: expected a ")"
                        configASSERT( xSize == sizeof( EventGroup_t ) );

Best regards

Jean

Hi Andy,

like this ? ;-)

  /* We should never get here as control is now taken by the scheduler */
  /* Infinite loop */
  /* USER CODE BEGIN WHILE */
  while (1)
  { // is this while executed ?

/* si on appuie sur le bouton, le clignotement est plus rapide */
    if (HAL_GPIO_ReadPin(bouton_poussoir_GPIO_Port, bouton_poussoir_Pin))
		{
      HAL_GPIO_TogglePin(GPIOI, GPIO_PIN_1);
      /* Insert delay 400 ms */
      HAL_Delay(400);
		}
		else
		{
      HAL_GPIO_TogglePin(GPIOI, GPIO_PIN_1);
      /* Insert delay 1000 ms */
      HAL_Delay(1000);
		}

    /* USER CODE END WHILE */

    /* USER CODE BEGIN 3 */
  }
  /* USER CODE END 3 */

Jean

After a lot of works, I found a '}' that was not linked to a '{' in the small program I wrote in main.c (I think because of a bad use of copy / paste). I removed this } and all the errors are gone.

So I got a hex file that I downloaded to the board via CubeProgrammer. It has done something because, now, the screen is empty (no demo) but my simple program doesn't start ... In fact, I wanted to 'blink' led1 and it stay on.

Jean

PS Happy new year to everyone !

I don't know if it is the only thing that fixed this issue, but when i set optimization level to 0, the LED1 blinked !

Jean