M1 MIPI DSI Connector Pitch Adpation

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DHWill
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M1 MIPI DSI Connector Pitch Adpation

Post by DHWill »

Hello Hard Kernel!

I want to connect a MIPI DSI panel to our Odroid M1, the panel comes with a 31 pin 0.5mm pitch cable.

I believe the connector on the M1 is a 31pin 0.3mm pitch?

Does anyone have any recommendations for a quick ZIF pitch adapter, I'd imagine this to be a common hurdle.

Thank you.

William

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mctom
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Re: M1 MIPI DSI Connector Pitch Adpation

Post by mctom »

Hi!
I was looking for something similar lately, for e-ink display, but it's extremely hard to find any breakout boards for pitches below 0.5mm for any reason.

Are you sure the pin order is the same in your display and M1?
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Re: M1 MIPI DSI Connector Pitch Adpation

Post by odroid »

Yes, it is 0.3mm pitch.
The MIPI DSI connector on the M1 board is FH26W-31S-0.3SHW from Hirose.
https://www.hirose.com/product/document ... =D49355_en

But I've not seen any adapter board so far.

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Re: M1 MIPI DSI Connector Pitch Adpation

Post by mctom »

This is the only one I have found when I was looking:
https://www.aliexpress.com/item/3284320 ... 6763TqiIM4

But I got a 39 pin for a different purpose.

Theoretically this could be coupled with a similar board but with 0.5mm pitch (and those are much easier to obtain), but given the high speed nature of DSI I'd doubt the reliability of this solution.
Also, as I said before, I'm almost certain the pinout won't be the same anyway.
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Re: M1 MIPI DSI Connector Pitch Adpation

Post by DHWill »

mctom wrote:
Sat Jul 02, 2022 7:18 pm
Hi!
I was looking for something similar lately, for e-ink display, but it's extremely hard to find any breakout boards for pitches below 0.5mm for any reason.

Are you sure the pin order is the same in your display and M1?
Hi mctom!
Yes the pin order surprisingly appears to match. I'll presume there is some form of MIPI protocol in play there?

As for the adapter board, I feel like the quickest thing to do will probably be using somthing like this, with a bit of didgy soldering.. I'm yet to find a 0.3mm pitch one:
https://www.amazon.co.uk/sourcing-map-C ... C49&sr=8-4

Thank you for the advice, this is a brilliant forum

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Re: M1 MIPI DSI Connector Pitch Adpation

Post by mctom »

So I just linked a 0.3mm pitched board in the post above. They do have 31 pin version as well.
If aligned properly, you could probably sandwitch two boards and solder them together using 2.0mm or 2.54mm male pin header. The point is to make these connections as short as possible, and hope for the best so the signals won't be disrupted too much. And be careful not to reverse pin order or anything. :)
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