STM32N6570-DK: Flashing Issue After Reset

[Selvarasu_K]

I am currently working on the STM32N6570-DK board for a camera-based project.

Development Setup
IDE: STM32CubeIDE (Version 2.1.1)
Tool: STM32CubeMX (with STM32N6 package installed)
Issue 1: Flashing & Boot Behavior
I tested the example GPIO_IOToggle program
The program is flashing and running properly
However, after pressing reset, the code is not running again

To make it run:

I set BOOT1 = LOW and BOOT2 = LOW
After reset, the AI demo code runs instead

My requirement:

How to properly flash the user application into internal flash memory
After reset, the same user code should run automatically
Issue 2: Required Examples / Guidance

I need guidance or reference examples for the following:

1. ST-LINK V3EC configuration
Serial communication setup for debugging (UART / Virtual COM)
Camera Interface
Camera bring-up
2. How to read camera data
Ethernet & Streaming
Ethernet initialization (bring-up)
UDP socket configuration
Streaming camera data to display over Ethernet

Project Goal

Capture camera data and stream it via UDP over Ethernet to a display.

Kindly provide:

Proper flashing steps/configuration
Relevant example projects or documentation
Any reference implementation for camera + Ethernet integration

This will help me move forward with the development.

Thanks in advance for your support.

---

See separate thread for discussion of MIPI CSI Camera Interface & UDP Ethernet Streaming

[Len_Heske]

Hello @Selvarasu_K,

sounds like you're in Dev Boot Mode.

In this mode your code is directly written into the SRAM instead of flash memory. When you press the reset button it seems like the last saved flash code is loaded instead, hence you start running a different project.

Also, you're asking for guidance on several different things in one post, that's also a troubleshooting post. I'd suggest you to focus on one thing at a time and go from there, asking for advice on the next topics once you actually get to them.

In general, I recommend consulting the manuals, especially the reference manual RM0486 and programming manual PM0273.

Kind regards,

Len

[STackPointer64]

Hello @Selvarasu_K, and welcome to ST Community!

Have you had the chance to review our published knowledge base articles and wikis dedicated to STM32N6? If not, I suggest you do so. These links may help:

• Getting started with External memory Manager and External memory loader
• STM32N6 Knowledge Base articles 

Best regards,