STM32H755ZI-Q Small problem with Led not working as it should.

[Emanuelo]

I'm trying to blink variation of morze code with specific string on yellow led, but the led just turns on and stays on for a little bit and then turns off.

When I try to debug it step by step it works as it should, but the moment I press run, it does the same think. If anyone can shed some light on this, I would really appreciate it!

Thank you!

   char* name= "text";
   char *string;
  /* USER CODE END 2 */
 
  /* Infinite loop */
  /* USER CODE BEGIN WHILE */
   while (1)
   {
 	  for(;*name!= '\0';name++) {
 		  string = morze(*name);
 		  for(int i = 0;string[i] != '\0';i++) {
 			  HAL_GPIO_TogglePin(GPIOE, GPIO_PIN_1);
 			  if(string[i] == '.'){
 				  HAL_Delay(500);
 			  }else if(string[i] == '-') {
 				  HAL_Delay(1000);
 			  }else {
 				  int a = 0;
 			  }
 			  HAL_GPIO_TogglePin(GPIOE, GPIO_PIN_1);
 		  }
 	  }
    /* USER CODE END WHILE */
 
    /* USER CODE BEGIN 3 */
   }
 
char* morze(char a)
{
    switch (a) {
   case 'x':
        return "-..-";
    case 'e':
        return ".";
    case 't':
        return "-";
    default:
    	break;
    }
    return NULL;
}

[Piranha]

You have forgot the delay between the dots and dashes.

[Emanuelo]

if I add delay there it does the same think just for longer

[Piranha · Accepted solution]

Then it's the wrong place. You have to wait for a pause in a code position, where the LED is off!

[Emanuelo]

Yea, I'm dumb, I was putting it in wrong place.