For a production project I need to connect a touch screen to a portenta H7. I have seen that it has a MIPI DSI interface but I cannot find any screen on the market nor have I seen that a library is available. Does anyone know any display that is compatible with the Portenta H7?
Tons of little screens use MIPI - AliExpress is full of them, and knowing nothing about any of this, the issue will be finding the logic and configuring it for whatever timings your screen will require. You will almost certainly have to build an interface adapter board to power things like backlight, etc, but it's doable. The logic is something else entirely.
Did you have any luck with this.
I am using a dfRobot 320x480 touchscreenLCD with the SPI / GDI interface (made a little PCB to adapt to the GDI cable that plugs into the portenta breakout board).
Fermion: 3.5” 480x320 TFT LCD Capacitive Touchscreen - DFRobot
Although it works, one cannot accuse it of being too fast.
A DSI interface would likely be much better, and maybe it can be had with an IPS screen for better contrast.
Not yet. Thank you for the info We will try it and see
I emailed Arduino Support, and they replied that they have no plans to add MIPI/DSI support at the moment.
I think that is a mistake, as a CPU with built in graphics acceleration and a MIPI interface should have support for it.
There is a library for LCD support of the STM32H747I-DISCO LCD panel - and it is connected by MIPI/DSI - I think they should try to modify that to make it work (not sure if it uses any of the hardware acceleration though).
ThreadX GUIX does use the hardware acceleration, and offers a lot of LCD screen development tools - so that might be something they can use as well maybe - it would be nice if the board could be made to support ThreadX as well as mbed?
Hi, could you please send a link to the library to it? I wasn't ale to find it. Its a shame Arduino doesn't plan to add this support by default.
has there been any updates? I also have a project in mind and want to use a MIPI as they are higher quality, allow for faster refresh rates, are much larger, and have better graphics over SPI displays. Can I purchase a MIPI and have it work on H7? Whether its difficult to work with or not is not a problem for me.
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