STM32H7B3 No Display

[maununez]

Hello;

 

I need your support to resolve an issue with the STM32H7B3.

Today once I connected the board to my PC; I noticed that nothing pops up in the display;; I mean... black screen. 

But ... I can see the green lights over the board on and I'm able to connect it thru the SMT32CubeProgrammer

here is an Image:

is connected.

 

What can I do to see graphics over the display?

 

Thanks in advance and your support 

 

 

[TDK]

Your screenshot shows that the FLASH is erased (0xFF). That means there is no program on the board, so nothing is sending data to the display.

Is this a STM32H7B3I-DK? You can re-flash the demonstration firmware if you can find it. I can try to look...

[maununez]

Thank you TDK | Evangelist for your quick support.

I'm going to follow your instructions .. I mean re-flash the board

I'll share the result

 

[TDK]

Redownload the demo firmware here:

https://www.st.com/resource/en/compiled_demos/stm32h7b3i-dk_demo.zip

[maununez]

Hello Again @TDK 

 

I did the step; the re-flash, but looks like there is a problem once STM32CubeProgrammer try to delete the external memory

in the next image; you can see that... I'm trying to upload the demo.hex

 

and I have as External loader the one which is in the next image:

In resume: the problem is when then CubeProgrammer is trying to delete External Memory

Once again, thank you for your support.

what can I do?

best regards.

 

 

 

[FBL]

Hello @maununez, Welcome to ST Community.

 

Your chip seems to be fully erased. Would you please specify the expected behavior? 

Flashing the demo would be a good start to test the LCD panel.

 

[maununez]

Thank you @FBL for your support

As @TDK suggested too

I'll re-flash the board and soon I'll share the result

 

best regards;