An improved JVS-PAC (JVS-PAC 2)

[invzim]

Trackball/spinner support is in, presented as two mice, I don't think any panels came like that stock.. But you can make one and use JVS if you have the rotary IO

This one has been so long in the making, so had to post a picture, this is MiSTer running.

The Virtua Golf panel has the buttons wired up for LEFT/RIGHT/UP/DOWN, which I didn't anticipate, so for mice, you can assign any JVS input to mouse buttons left and right - and then it works out of the box. When picking spinner on the OLED (vs trackball), it only cares about the x-axis, and Arkanoid is actually pretty playable with a trackball that way. Also added a 'multiplier' for 1x,2x,4x and 8X to make it more responsive - as just passing on the JVS values (1x) was a bit sluggish.

 

[invzim]

Feature creep I know, but what's a few extra days when it's already years late
A reboot is needed when switching to switch mode

(video featuring balltops from @NFGx)

 

[Sp33dFr34k]

Awesome! Still hoping for 360 support though

 

[invzim]

Last feature creep, I promise The original JVS-PAC never got the PS3 PS button, but since then the required USB magic has been figured out (not by me), and now I can finally play Gradius V on a cab. PS3 mode two player works too. Hold Start button for >2 seconds and it issues the PS button.

 

[invzim]

Let's call it a beta, manual etc included in zip is a work in progress..

https://kirurg.org/drop/jvspac2-2026-09-23.zip

Would love any and all feedback before building a release of this.

 

[ChapDDR]

The device turned out a bit like an oddball composite thing, so even if the XSM3 crypto/auth stuff is now kind of open, I'm not sure how a 360 would look at the device. If I had a 360 console I would try just for fun.


Not yet unfortunately, but on it..


Yup, should be ok - but you will need one line in a startup script (or somewhere else) to tell the xpad driver that it should regard the device as xinput. I'll provide a drop-in thing for mister along with the firmware update to make this easy.

I saw this a bit late, I just updated my JVS-PAC2 with the firmware but couldn't get the controls to work on my 360. After some googling I found out that not every Xinput works on the 360, due to security.

Hopefully the 360 gets added in the future (regardless, great update!)

For now I will just wire up a separate Brooks board I already ordered

 

[Sp33dFr34k]

I saw this a bit late, I just updated my JVS-PAC2 with the firmware but couldn't get the controls to work on my 360. After some googling I found out that not every Xinput works on the 360, due to security.

Hopefully the 360 gets added in the future (regardless, great update!)

For now I will just wire up a separate Brooks board I already ordered

Check out UsbdSecPatch, it makes the Xbox 360 accept normal xinput devices (bypasses authorisation) and might just work with the latest firmware invzim posted. Haven't tried it myself yet.

 

[VxD]

@inzvim Any updates on the reopening of your online store?
I'm setting up two Vewlixes for MiSTer and am in dire need of two JVS Expanders (preferably) or two JVS-PAC2.

 

[Keroro1125]

@inzvim Any updates on the reopening of your online store?
I'm setting up two Vewlixes for MiSTer and am in dire need of two JVS Expanders (preferably) or two JVS-PAC2.

Seconded. I picked up a Sega Lindbergh cab a couple months ago and I'd love to get a JVS-PAC2 to so I can swap between my Naomi PCB setup and Switch/PC easily.

 

[invzim]

Seconded. I picked up a Sega Lindbergh cab a couple months ago and I'd love to get a JVS-PAC2 to so I can swap between my Naomi PCB setup and Switch/PC easily.

Very soon, I plan on doing a small batch of JVS-PAC 2 out of Thailand with DHL within a couple of weeks. This is to test pick&pack, how shipping works etc. I'll post more details later.