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stm32F469i-DISCO strange behavior with LCD

DKash.1
Associate

Hi to all,

I'm new in stm32 and I have stm32F469i-DISCO board.

Factory demo worked well on it.

Then I've started to exploring examples from STM32CubeIDE (New -> STM32 project -> Examples -> filtered by board)

Last couple of tries was LCD_DSI_CmdMode_DoubleBuffering, LCD_Paint, TouchGFX

Just create new project - build and Run

And here example what I can see on the LCD

0693W00000KZxqLQAT.pngThen I'm taking compiled demo binaries from official page and program it using STM32CubeProgrammer

0693W00000KZxrdQAD.pngIf I leave board without power for some time, 10 - 15 mins, this white lines gone and image became good. But this not work with examples - they didn't work after board "rest".

Also tried to program binaries compiled by STM32CubeIDE with STM32CubeProgrammer - the same but with some verification errors.

And official demo binaries also says verification errors.

0693W00000KZxtPQAT.pngIs it some hardware issue on my board and I need new one?

Any ideas?

5 REPLIES 5
MM..1
Chief II

Your board equip too external QSPI memory and you need manage it.

Error on image is about it.

DMusz.2
Associate II

Hello.

Change project settings: [c/c++]>[patch and symbols]>[symbols]

delete USE_STM32469I_DISCO_REVC

add USE_STM32469I_DISCO_REVA

DMusz.2
Associate II

0693W00000KbLEmQAN.pnglike this :)

DMusz.2
Associate II

Depending on the version of the board:

USE_STM32469I_DISCO_REVA (25Mhz external osc)

USE_STM32469I_DISCO_REVB (8Mhz external osc)

USE_STM32469I_DISCO_REVC (NT35510 lcd driver)

;)

There also look to be a couple of External Loaders

MT25QL128A_STM32F469I-DK

N25Q128A_STM32469I-DISCO

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