Sega BillBoard

[Spindizzi]

hi,
following this message from Sonic32
http://www.supermodel3.com/Forum/viewtopic.php?f=3&t=1919&start=30#p18219

I'm trying to emulate the sega billboard
it is a lamp ramp + 2 digits display for each players
Few informations are displayed, so the interrest is really limited but it's a part a of the emulation

The digits are drived by the the cpu/rom to allow display (not only 0-9 a-f digits as usual). Each segments of the digits can be switch on/off by the rom prg which allows to produce animations.
You can find a lots of informations here
https://www.arcade-projects.com/threads/vs-billboard-output-from-sega-st-v-model-2-model-3-naomi.1142/

The rom is emulated and the datas are sent (raw digits + lamp state) to Supermodel Outputs.
These outputs are processed by my own little software (the same I use to get the mame/Supermodel outputs) and sent to an arduino.
The arduino processes the raw datas and sends them to a 8*7 segments digits
Complicated isn't it ?

I'm managing to make a little video (hard to handle camera and play in the same time )
P2 digits are on the left, P1 digits are on the right
P2 P1 lamps are simulated by an '8' at digit n°4 and 5 (I was to lazy to connect a real led)
https://mega.nz/embed/Z8hQkQLZ#OH12uhBlw-AFulOIaQhhEtt7c-14cHqlnPYOgP60flg

only 4 games support Sega Billboard (with their different revisions)
Virtual-On Oratorio
Fighting Vipers 2
Virtua Fighter 3
Virtua Striker 2 (goal is displayed when you make a goal)

Sometimes, some characters stay on the display, or lamp continue to blink

[Bart]

Cool project! I have never seen one of these. The cabinet photos at arcade-projects.com look Japanese? I don’t recall seeing such a billboard on any Sega cabinet in the US.

[Spindizzi]

Apparently only for versus cab (back to back cabs)
2 separate crts, 2 separate panels but only 1 pcb (full stack)

this is in the cabinet manual (model 3)
part of manual for vs2 (same for vf3)

[Ian]

If you wanted to emulate this
Could perhaps define a struct with the output types
Like

struct BillBoard
{
char sevenSegment[7];
char lamp;
}

Then fire that out on a defined UDP port. Then people can build 3rd party hardware/software to draw the output.

Or .. we could just draw it on the screen somewhere.

[sonic32]

Thanks to the Spindizzi for working on it,

[Bart]

I got your email and replied but gmx blocked me again. I will try to re-send later today or tomorrow. Today I'm going to try to build my new workstation. I like your v2 patch approach and will say more via email.

[Spindizzi]

erf, in case, you can try with my 2nd email, if you're really blocked