STM32N6570-DK Camera Issue

[kevlar]

I've just received a brand new DK from Mouser and I've been trying to get the stock AI demo up and running. The camrea is connected, power is provided via a short USB-C cable on the 2nd USB connector (not the ST-Link one) and the jumpers changed over.

When I launch the AI demo via the touchscreen, the camera feed appears but there appears to be noise on the display. The camera stream appears for a few seconds before the screen greys out.

Video attached.

[AndrejsG]

I have very similar issue. The only thing, I barely can see the camera feed, it disappears almost instantly after opening the demo.

Bought my kit directly from ST last week.

Tried powering with external USB-C adaptor and also through the DC bench supply using Arduino headers -> same result.

Also I have tried to re-flash out-of-the-box demo binary -> same result.

[kevlar]

Ah, that's good that someone else is seeing a similar issue. 

Be interested to know whether this is a hardware/power issue on a certain batch of these boards.

Can anyone from ST comment, please?

[kevlar]

@stmicro is anyone able to help with this please?

I'd appreciate the help as I'd like to start to use the DK as soon as possible

[jiangfan]

Hello, STM32N6570-DK the board itself should be OK, the issue should be mainly due to the AI demo software. Hopefully the issue may be resolved soon.

[Sco]

If you want to confirm if it's a issue due to the power supply limitation or not, the way is to check the status of LD3.

If you confirm the issue comes only when you launch the AI demo, I would assume it's a bug from this demo side. ST has seen this input, after root cause confirmed, updates will be delivered soon.

[kevlar]

When the board is first connected via USB, LD3 is off but LD4 is red with blinking amber.

This doesn't change when the AI demo launches and doesn't change when the screen turns grey. The LED status also doesn't change when launching the other demos either.

If it is a firmware issue, where can I download the latest version? Is there a repo for this?

Thanks.

[Sco]

From your description, it seems that, you power the board through user USB connector(CN18). 

Sorry for the un-clear description my side, what I am saying(check LED status) is based on you power the board through STLINK side USB connector(CN6).

Regarding the demo, should be below link, but it's still the old one, expected to be delivered soon.

STM32CubeN6 | Product - STMicroelectronics

From my side, if your purpose is to do something with this board product(mother board + LCD + Camera), the most important point is to make sure the board can work well without any hardware issues. And yes, you can have another to validate this case except using the default demo. Solution as below:

1. Get ST cube examples from ST web directly(STM32CubeN6 | Product - STMicroelectronics)

2. Get the related examples from github(for example, for camera case: STM32CubeN6/Projects/STM32N6570-DK/Applications/DCMIPP/DCMIPP_ContinuousMode at main · STMicroelectronics/STM32CubeN6 · GitHub)

[kevlar]

Ah, ok - apologies.

I've now powered the board through the STLINK USB connector and I can see that immediately, LD4 is blinking RED and LD3 seems to be dimly lit with RED/GREEN.

At this point, the camera is not connected. 

For reference, the board is powered via a USB connector on a powered USB hub.

Also, is the default demo source code unavailable?