E46Fanatics - View Single Post - DIY E46 Media Centre: MP3, videos, Digital Radio, Digital TV?
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Old 05-13-2019, 12:58 AM   #1941
vitalic
Registered User
 
Join Date: Mar 2015
Location: Ilmenau
Posts: 84
My Ride: E38
Hi Pete,

yes already thought about that. The question is, how to realize it.

If the car has tv and nav, the tv generates the pic. If the car only has nav, the nav generates te pic. That can be read in bmw wds system.

So you first have to change the vehicle code to make clear there is no tv modul. Thats is not the problem. This can be coded with bmw scanner.

But after this, does the reversecam still work?

The nav sends other like tv, a RGB + sync signal instead of RGsB.

How do you want to switch between the 3 resources than?

Right now i just switch between pi and tv modul. After removing tv modul you'd also have to make reversecam as input possible.

The board is based on pibus. So right now i also use the pin 17 from tv modul to make the HDMI switch select the input.

Pibus acts like, when switching to cdc, make tv modul switch to reversecamview. But if you remove the tv modul, there is no more reversecamview?

Or does the nav also offer an input?
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