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Seeking info on the DSI/MIPI interface of STM32H747I-DISCO

B_M
Visitor

I have the STM32H747I-DISCO, and am interested in connecting a larger touch display. What possibilities are there? What limit is there on display resolution? Could a 2560 x 1600 display be used for example (I do not need video. I just need larger physical format, higher resolution, and low frequency update in real time)? Where are the critical choke points on display resolution (apart from the obvious video memory)? MB1166? Elsewhere?

 

What about connectors? Firstly there is CN1 a 60 pin connector on the back of the LCD daughterboard MB1166 which plugs into CN15 on the main DISCO board - is this a standard MIPI connector or arbitrary to this device? Are there independently produced displays with a compatible connector? 

 

The LCD itself is connected, as far as I can see, by two flex cables, a 12 pin flex connector CN2 from the display and a 6 pin flex connector CN3 from the touch screen. Could CN2 and CN3 be potentially used by an alternate larger display in place of the existing display?

 

There are also two flex cables folded under the display on the top surface of MB1166 (one large - 60 pin?, and one 2 pin), I am guessing these are internal to the manufacture of the display itself. 

 

Is 60 pin a standard interface for DSI/MIPI? I note there are DSI/MIPI displays available on the market with a 60 pin ribbon cable. Is there information available on connecting such ribbon cables to CN15 on the DISCO board?

 

In the DISCO user manual UM2411 there is a pinout for CN15 (no other information), but I haven't found any other information so far.

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