Skip to main content
Rozakos
Rozakos
Associate
December 9, 2020
Question

STM32 program issue with HAL Driver, running normally only in Debug mode!

  • December 9, 2020
  • 1 reply
  • 888 views

Hello everyone, i have a custom made board using a STM32L476RCT6, i am able to normally upload the bin files with the programmer etc, it's working properly, except for one thing, i can't use the HAL_drivers as the same way i use them with the Nucleo. For instance if i do

	 HAL_GPIO_WritePin(D1_GPIO_Port,D1_Pin,1);
	 HAL_Delay(1000);
	 HAL_GPIO_WritePin(D1_GPIO_Port,D1_Pin,0);

And run the MCU in debug mode, step by step, it will run just fine, but if i run it normally, it gets stuck on HIGH, never actually blinking.

But if i do:

	 HAL_GPIO_TogglePin(D1_GPIO_Port,D1_Pin);
	 HAL_Delay(1000);

It will work just fine. What is happening?

The code is generated by CubeMX, i will post a github link below:

https://github.com/Rozakos/STM32/blob/master/HELP

Any help is appreciated!

0693W000006F5zmQAC.jpg

This topic has been closed for replies.

1 reply

TDK
TDK
December 9, 2020

You need a delay after you reset the pin if you want to be able to see it blink.

while (1)
 {
 /* USER CODE END WHILE */
	 HAL_GPIO_WritePin(D1_GPIO_Port,D1_Pin,1);
	 HAL_Delay(1000);
	 HAL_GPIO_WritePin(D1_GPIO_Port,D1_Pin,0);
 /* USER CODE BEGIN 3 */
 }

Something like this:

while (1)
 {
 /* USER CODE END WHILE */
	 HAL_GPIO_WritePin(D1_GPIO_Port,D1_Pin,1);
	 HAL_Delay(1000);
	 HAL_GPIO_WritePin(D1_GPIO_Port,D1_Pin,0);
	 HAL_Delay(1000); // <--------
 /* USER CODE BEGIN 3 */
 }

Also note that your code is not within USER CODE begin/end comments so it will be erased on regeneration.

"If you feel a post has answered your question, please click ""Accept as Solution""."
Terms & ConditionsAccessibility statement