u/Jazzlike-Bluebird-51

▲ 3 r/DIY

Hi everyone,

I’ve been on a mission for a couple of years to build a custom driver board for a VR/AR application. I'm stuck at what feels like a dead end and I need some expert guidance (or to find someone who does this for a living).

The Goal:

- Input: Micro-HDMI and a dedicated Power Port.

- Output: Dual MIPI DSI (for two VR displays).

- Application: VR/AR headset.

The Problem:

I have the displays, but I do not have the exact datasheet. I have documentation for very similar models, but not the specific one I'm holding. I've contacted several manufacturers in China, but most refuse to help without a high-volume order or a complete datasheet.

What I'm looking for:

  1. Feasibility: Is it even possible to reverse-engineer the initialization sequence and pinout if I only have "close-enough" datasheets?

  2. Specialists: Does anyone know a firm or a freelance engineer who specializes in bridge chips (like Toshiba, Lattice, or Analogix) for MIPI DSI?

  3. Alternative solutions: Is there a universal bridge/controller that can be adapted via firmware?

I am aware this is incredibly complex and potentially impossible without the exact documentation, but these specific displays are mandatory for my project. Any lead, contact, or "don't do it, you're crazy because..." is welcome.

Thanks!

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u/Jazzlike-Bluebird-51 — 17 days ago