cancel
Showing results for 
Search instead for 
Did you mean: 

STM32H723 GPIO Lock set after reset

Niramas
Associate

I have a Nucleo-H723ZG board.  The GPIO lock bits are set at reset so I cannot set up the ports.  See Attached screenshot.  I can run code just fine and the original demo code did toggle the LEDs.

Am I missing something here? 

5 REPLIES 5
TDK
Guru

Since all of the GPIOA registers report 0xABFFFFFF, I'm more inclined to believe this is a debugger/IDE issue.

If you feel a post has answered your question, please click "Accept as Solution".
mƎALLEm
ST Employee

Hello @Niramas and welcome to the ST community,

I'm confused. You said:


@Niramas wrote:

I can run code just fine and the original demo code did toggle the LEDs.


The LEDs are toggling even the lock bits are set after reset?

To give better visibility on the answered topics, please click on "Accept as Solution" on the reply which solved your issue or answered your question.

The screenshot is not from the demo it is from our SW.  Notice it is stopped at the reset vector though.

The demo came pre loaded on the device and is gone now.

The memory dump shows the same values.