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Joined: Tue May 16, 2017 9:17 pm

Raspberry Pi model 3 hdmi output

Sat May 27, 2017 10:56 pm

As the name suggests, I want some reference material as to how to get some hdmi output for the pi. If I can get a white pixel I'll be overjoyed. Thank you in advance.

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Re: Raspberry Pi model 3 hdmi output

Mon May 29, 2017 2:32 am

There are no white papers or even much documentation for the Pi HDMI you have to piece together information and look at existing code and websites.

The basics are:
You use the mailbox API to setup the Video mode you want and get a framebuffer, that much is documented ... -interface

The framebuffer is the flat video memory pointer the bits/byte array from that pointer have different layout depending on video mode you select.

That is where most of us started.

There are a number of good assembler sources:
David Welch:
Peter Lemon:

If you prefer C my the source code for my article may help: ... he-Pi-part

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Re: Raspberry Pi model 3 hdmi output

Sun Jul 30, 2017 7:57 pm
Open Source DMX/RDM/MIDI/OSC/Art-Net/sACN solutions

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