Looking for STM32U5G9J-DK1 schematic and BOM

[Kelly3]

We just purchased one STM32U5G9J-DK1 from Digikey. We try to replace the LCD module on it with our own selected display with one MIPI lane. Thus, we are designing a interface board so that it can mate with CN2. And since we are also using a touch screen with I2C interface, we also need to connect CN4 I2C5. In this case, may I have the schematic and BOM of the main board MB1928B so that I can have all the pin definitions and connector model information?

Thank you.

[AScha.3 · Accepted solution]

You can find circuit at STM...

https://www.st.com/en/evaluation-tools/stm32u5g9j-dk1.html#cad-resources

maybe this is what you want:

https://www.st.com/resource/en/schematic_pack/mb1829-u5g9njq-b02-schematic.pdf

[Andrew Neil]

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@Kelly3 wrote:

may I have the schematic and BOM of the main board .

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The place to go for these things is always the Product Page for the board - @AScha.3 gave the link

[AWack]

Hi Kelly3,

have you been successful connecting your own display to the STM32U5G9J-DK1? I´m just trying the same but get no image / pixel at all...

Is it possible to do a first connection without changing the firmware?

Best regards,

Achim

[Kelly3]

@AWack , I am able to connect my own display to STM32U5G9J-DK1 through a customized adaptor PCB. The sample firmware that has been tuned for the 2.47" display on STM32U5G9-DK1 does not work for any display. So far I only can make send image to display through APB command mode. The high coupling of DSI host and LTDC makes sending images to display using video mode and adaptive command mode complicated for timing tunning.  

If you connect the display and don't change firmware and the display use different driver IC than STM32U5G9-DK1 display, most likely, it won't work.