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For some reason the YouTube link is malformed. This should work:

https://youtu.be/bDhDjNsyAlw

[JAMMA Custom Arcade Project (JCAP)]

JAMMA Custom Arcade Project (JCAP)


JCAP is a project with the goal of developing a JAMMA arcade standard compatible game board using the Parallax Propeller 1 (P8X32A) microcontroller upon which a user can implement their own custom arcade game, either from scratch or by using the library of graphics, sound, input, and other drivers developed under the project. Ultimately, the project will provide:

• VGA video driver
• Sprite/tile based graphics driver
• PWM sound driver
• Serialized input driver
• Game engine
• PCB schematic and CAD files

in such a way that a user has everything they need to implement their own arcade game and have a PCB printed to build it on.

A more detailed description can be found in the JCAP readme.
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Here you can see the current (breadboarded) circuit laydown. It includes the dual P8X32As in the center, with the serialized input system to the East, and the VGA DAC in the Northwest:


This is the power system including AC EMI filter, switching arcade PSU, audio amp, and +5V/+12V/GND distribution blocks:


Here's a simple demo, showcasing movement, rotating color palette animations, sprite animations, and parallax scrolling.

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The project is being managed via GitHub, and can be found here.

A progress log/wiki is constantly being updated, and contains a lot of background information that some might find very interesting such as a brief history of arcade games and an analysis of historical video formats:

• A Little History
• JAMMA
• Propeller 1
• Architecture
• Input
• Video Part 1
• Video Part 2
• Video Part 3
• Video Part 4

Currently, JCAP is on pause as a custom IDE is being developed to manage graphical assets...

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JCAP Integrated Development Environment (JIDE)


JIDE is a project developed alongside JCAP in order to provide a graphics development application which can integrate with the JCAP framework. This utility features:

• A cross-platform compatible, PyQt-based GUI
• Unique environments for developing tiles, sprites, and tile maps
• A portable, human-readable JSON-based file format for easy portability and sharing
• An extensive list of intuitive graphcics development tools and features
• Pixel-perfect graphics precision
• Integration with JCAP, including programming the system directly via dual serial connection

This portion of the project is the current focus, as neglecting to develop an IDE would ultimately require hand-jamming hex matrices to create graphics assets in memory.

Features are being added daily, and it's expected to be completed in the next month or two.

Hello ArcadePeeps,

Any ideas of what's going on with my Tron Arcade Stand Up? Turn it on and see a bland white screen or mixture of white and black "Tetris Blocks"

So far:
Replaced with Suzo Happ Switching PS
Cleaned and checked fuses/Continuity
Checked Voltage on Power Supply (5.023)

Next?  Anybody seen this before?

https://twitter.com/MachoArcade/status/1269796173474226176/photo/1

I miss Johns vids also. I hope we get a video again even if it’s just a short one to say Hi or  what he’s been up to I know he does not owe us anything I hope he’s safe and well with everything going on .

That sounds nice. I know there’s VGO, so we know he’s well, just for the youtube crowd.

I miss Johns vids also. I hope we get a video again even if it’s just a short one to say Hi or  what he’s been up to I know he does not owe us anything I hope he’s safe and well with everything going on .

I really miss the videos.

I'm sure John will post video's when he's ready. He's got a life like the rest of us and he needs to do what he needs to do.

Although I'm craving a new video too. Just saying.... 

Had a few minutes to tinker with it today so I looked over the schematics and found two good test points to measure B+ at. B+ was 67.5 volts. The manual say it should be 73 volts. However the game ran for over 1 1/2 hours today without a glitch. I "could" adjust the B+ but I don't want to until I can measure it while the monitor is acting up, so for the next few days I'm going to turn it on when I get up in the morning and let it run until it acts up or I have to leave for work. If I can't get it to act up then I'm going to pull the board and install the two cap kits I bought for it (main board and power supply section) and touch up ever single solder joint then reinstall it and set B+ to 73 volts and then let this thing run everyday until I'm convinced that it's actually fixed.

Thanks for the suggestion John, it at least got me to start looking into this. I'll keep you posted.

johns probably tierd of the hobby i know ive been! i just been getting back in to it buying pins and pushing my vids out of the basment i think im going to be a pin guy now

Thanks, man!

Just taking a break.

This was a year ago. Miss your video's man! Hope you're okay.