2020-04-28 10:54 AM
Hey everyone!
I'm not sure if this is the right forum to ask HW related questions but here goes:
I've found a nice big 4-lane DSI display that I would like to hook up to an STM32F7xxx.
My issue is that as far as I can see the STM32 parts only supports 2 lanes for DSI connections. the display requires a 4-lane interface.
Is there a workaround for this or do I need to find a completely different part for this?
are the two things in completely different leagues and will they never fit together?
2020-04-28 11:35 AM
Usually will have 4-lanes if the display has a high resolution and fresh rate.
The F7 doesn't have the bandwidth to drive much beyond 1280x1024 @ 60Hz as I recall
Check if the display controller allows for fewer lanes to be used, most are configurable.
The HDMI controller ST uses has 4-lanes as I recall, only 2 are usable, ultimately limiting the screen resolutions which are workable.