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upCntx · 2024-08-16

We are using MIPI-DSI on a STM32U5G9NJ.First bug: There are 2 pins missing in the Pinout View: D4 and J9. Both are VDD11 pins. Second bug:After Enabling LTDC and DSI in STM32CubeMX I can't select "Active High" for "Data Enable Polarity" in LTDC -> Pa...

upCntx · 2024-09-11

Of course I can provide more details. Sharing the project is not really possible, we are not using the CUBE HAL library. DEPOL bit of LTDC_GCR register is 0 - that means notDE is active low.DE bit of DSI_LPCR register is 0 - that means DE is active h...

upCntx · 2024-09-10

That's why I'm telling you to update your configuration and documentation.I've tested it.With "Active Low" our display shows some garbage, with "Active High" it's working properly.At least for the U5 this flag is working.Never trust some documentatio...

upCntx · 2024-09-10

I'm sorry, after writing some of the text I changed the package without double-checking that both bugs are present in this one.The faulty package is exactly the UFBGA-144, therefore the STM32U5G9ZJ.Take a look:

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Can't choose Data Enable polarity of LTDC if DSI is enabled and missing pins for STM32U5G9NJ

Re: STM32CubeMX: Can't choose Data Enable polarity of LTDC if DSI is enabled and missing pins for STM32U5G9NJ

Re: STM32CubeMX: Can't choose Data Enable polarity of LTDC if DSI is enabled and missing pins for STM32U5G9NJ

Re: STM32CubeMX: Can't choose Data Enable polarity of LTDC if DSI is enabled and missing pins for STM32U5G9NJ