DIY Pi2Jpac Jamma Adapter

[Zipper]

I've been tested some new modelines that went into the last image and they don't seem to work on all monitors, I'll revert them back in the next version to get those games working again

Out of interest, is this something the layman can do (create / revert modelines)? Or is it something best left to the pros (e.g. recompiling Advancemame and jazz like that)?

 

[Beaps]

I seem to have a sound issue?

Just say I plug headphones into the hdmi to vga adapter or straight into the pi I hear no volume only speaker hummm. Any ideas.

I have tried enabled audio via HDMI but still no sound

 

[Flinnster]

I use these config.txt lines for onboard audio:

hdmi_ignore_edid_audio=1
disable_audio_dither=1

 

[Beaps]

Still no audio. I'm a little confused as I can't hear anything from the pi 3.5jack, I can't remember if that's right or not

Sorted it now sorryBeaps2018-04-10 11:25:32

 

[chunksin]

I've been tested some new modelines that went into the last image and they don't seem to work on all monitors, I'll revert them back in the next version to get those games working again

Out of interest, is this something the layman can do (create / revert modelines)? Or is it something best left to the pros (e.g. recompiling Advancemame and jazz like that)?

There's no recompilation to do, you can see the modelines in the launchers, have a look at /boot/launchers/advmame.sh, it's standard bash script if you're familiar with that, the logic is pretty straightforward, it checks a reference file for the rom resolution and then sets the modeline based on that. To try new ones just copy them over the existing ones, best to comment out the existing lines by putting a hash symbol # at the start.

 

[Shinydaz]

£30 old style jpac, any good to anyone? clicky

 

[Flinnster]

Warning team.. 'untested'

 

[ace5]

Hi anybody got Daphne games to work ie space ace etc .I've got the files to work in hyperpie but no luck in this build cheers

 

[chunksin]

I'm making some updates to the image to fix 2 minor bugs and add a nice shiny new frontend so I'll look at Daphne games for you, are you running them on a usb or off the SD card?

 

[ace5]

Hi chunksin on a usb they work fine on hyperpie but nothing on this build .but it's not a problem as all my arcade games work great that's the main thing .keep up the good work.

 

[Noz1380]

I've not been able to get Daphne to work either, tho it works fine on my retropie setup down the house.

I'm running off USB too.

 

[Escape-to-88]

Managed to get this all up and running in the Dino King this evening, not without the help yesterday of Mr Flinnster! I'm using your latest 5.2 image Rich and I know a new one is on the way, but I'm having issues merging the console and arcade rom lists. I can select the console games individually but they don't display in any list of all games; there were just a few arcadey games on the Megadrive that was interested in playing. This might be something you're aware of but thought I'd mention it. Also having trouble getting it to reboot into the last game played too, even with the correct option selected, doesn't seem to want to play ball. All minor niggles of course, fab otherwise, great work

 

[ace5]

Hi chunksin any updates on this thanks .

 

[chunksin]

Sorry, I've had a whole bunch of projects on and I'm ploughing through them, once Revival is out of the way I'll get back on this, if anyone is interested I've ported this to pi2jamma hardware which means you can run it on a vga666 adaptor rather than an hdmi to vga adaptor. You lose the interlaced video modes but it can still play vert games in hori and vice versa.

Big thanks to Flinnster and Escape-to-88 who've been testing the balls of v5.2 and I have some more mods and fixes to go in as a result

 

[Flinnster]

I'm out for the mo also.. too busy breaking stuff and having to fix it to stay in the same place.. doh!

 

[Escape-to-88]

I'm out for the mo also.. too busy breaking stuff and having to fix it to stay in the same place.. doh!

As you know, I'm busy putting my sweaty claws inside the backs of live monitors.

I've ported this to pi2jamma hardware which means you can run it on a vga666 adaptor rather than an hdmi to vga adaptor. You lose the interlaced video modes but it can still play vert games in hori and vice versa.

I was wrongly under the impression you couldn't play vert games on a horizontal monitor with the VGA hat and Pi2Jamma configs since it removes the interlaced modes. However I just re-watched your video and Joschen's using your image and have realised my brain doesn't work properly

Escape-to-882018-05-10 07:32:05

 

[jinq-sea]

I'm still using the build that has no console emus in I think, and it's not missed a beat so I've left well alone. That said, I did buy another Pi with which to tinker, so I'll download the test image and give it a crack I think.

Anyone got a Pi2JAMMA, and if so, experiences?

 

[chunksin]

I like it, a nice compact bit of kit and works as expected. The only bad point I would make is the volume pot needs a decent knob! There has been a bit of an arms race in development recently and there are about 5 different images to try, each with their own good and bad points. The version of arpicade I ported really just uses the bare bones of the DIY image, all of the resolution switching code is new and based on existing pi2jamma code so I should stop calling it arpicade really!

If you keep up with the news on the Facebook group you might have heard about the new resolution auto switching code being written into Retroarch, this should mean we can do away with all of the switching scripts and get an experience much more like groovymame and less tinkering to knife and fork exceptions in, to give you an idea, my version now runs to around 540 lines of code and is a pain to keep updated!

I'd be happy to lend it to you after Revival if you'd like a play before buying one?

Chunksin2018-05-10 11:51:29

 

[Bulla]

I like it, a nice compact bit of kit and works as expected. The only bad point I would make is the volume pot needs a decent knob! There has been a bit of an arms race in development recently and there are about 5 different images to try, each with their own good and bad points. The version of arpicade I ported really just uses the bare bones of the DIY image, all of the resolution switching code is new and based on existing pi2jamma code so I should stop calling it arpicade really!

If you keep up with the news on the Facebook group you might have heard about the new resolution auto switching code being written into Retroarch, this should mean we can do away with all of the switching scripts and get an experience much more like groovymame and less tinkering to knife and fork exceptions in, to give you an idea, my version now runs to around 540 lines of code and is a pain to keep updated!

I'd be happy to lend it to you after Revival if you'd like a play before buying one?

Thanks for the update Chunksin, all sounds promising for the future, competition is good !

Any advantages over the home builds compared to the pi2jamma other than price ? Interesting they say

"No expensive and laggy hdmi, vga, cga adapters"

Money no object whats the best hardware solution in your opinion ? Am I right in thinking we have

Homebrew

Pi2Jamma

RaspberryJAMMA v3




Bulla2018-05-10 12:23:40

 

[chunksin]

I can see where they are coming from but expensive? £5 ish, laggy? 4-8ms, not noticeable unless you are a ninja ...

If pi2jamma could do interlaced resolutions it would be the winner for me, I think at the moment I couldn't pick one. If money is no object and you have dedicated horizontal and vertical cabs then get 2 pi2jammas, if you only have one cab and need hori and vert on the same cab then go for raspberryjamma or homebrew, the interlaced modes make a big difference to vert games.

There are also Italian and French pi-jamma boards doing the rounds, the French one is rumored to be the best and loads of people want one but it's in closed development at the moment and they aren't giving anything away!

Hope that helps