OPL2LPT

Discussion about old sound cards, MIDI devices and sound related accessories.

Re: OPL2LPT

Postby NilsWorld » 2018-1-11 @ 12:08

Oh gosh! I really want one! Another dream comes true.
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Re: OPL2LPT

Postby dreamblaster » 2018-1-11 @ 18:47

Well it is easy, to get your own, I just upload the files to 3d hubs
searched a 3d printer near my home town, and had it printed and shipped.
(there was also the option to pick it up)

After this print, I received a 10$ voucher to share with friends : http://3dhubs.refr.cc/MBVWXSH
So I guess that makes it very low cost, if you find a printer in your home town.
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Re: OPL2LPT

Postby noop » 2018-1-12 @ 03:55

Yesterday done soldering one of my OPL2LPT. Distance between miniUSB solder points was insane, probably < 0.2 mm, spent quite a long time trying to separate them until suceeded. The rest went like a breeze.
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Re: OPL2LPT

Postby jaZz_KCS » 2018-1-12 @ 09:45

I am so excited, I found a 3D printing hobby group in my city that told me to come along and bring the blueprints with me. I will go there this afternoon and hopefully return with printed cases for the CVX4 and OPL2LPT.
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Re: OPL2LPT

Postby derSammler » 2018-1-12 @ 10:43

Ordered a transparent case yesterday for 12 bucks, shipping included. :D
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Re: OPL2LPT

Postby dJOS » 2018-1-12 @ 11:06

Just finished building mine tonight but dont have time to test it - oh well I'll try it tomorrow.

Image Image
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Re: OPL2LPT

Postby matze79 » 2018-1-12 @ 16:22

Does adlipt work with freedos emm386 ?
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Re: OPL2LPT

Postby pdw » 2018-1-12 @ 19:30

matze79 wrote:Does adlipt work with freedos emm386 ?

Yes. There's a version that works with JEMM, which is the default emm386 of FreeDOS 1.2. (Though I think older versions of FreeDOS might have used a different implementation. Adlipt won't work there.)
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Re: OPL2LPT

Postby gdjacobs » 2018-1-12 @ 22:05

JEMM is more compatible and reliable anyway. If you want EMM386, it can be downloaded from Microsoft's FTP site.
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Re: OPL2LPT

Postby dJOS » 2018-1-13 @ 02:06

Yesterday I built an OPL2LPT and today I tested it on my Tandy 1000 EX with my Parallel port adapter .... and it works great! really great! I even patched Space Quest ]I[ and got full Adlib sound instead of the Tandy Ti chip music! Im pretty darn happy with that! :D

Image Image

Btw, There was some discussion a few pages back about chip-pulls and re-marking etc, well my OPL2 Chip has the glossy mould ejection marks so Im confident it's the real deal.

Oh and one other thing, is there a patched version of the Adlib JukeBox etc floating around? My Tandy is only a 7Mhz V20 so the TSR is not an option for me.
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Re: OPL2LPT

Postby matze79 » 2018-1-13 @ 07:55

EMM386 from MS does not work on Intel Atom D2700 on FreeDOS 1.2.
Also some things not working.. getting invalid opcodes from various software.

loaded adlipt, choose adlib in civilisation -> invalid opcode
-> retry without adlib -> works
-> retry with adlib -> works.. or invalid opcode :O

Also some fun with fdisk crash :D
crash.zip
(528.91 KiB) Downloaded 2 times


civ.jpg


damn it, atom is rather incompatible and seems to lack a lot of routines inside its efi bios emulation...

Everything is fine on my A10-5800K Quad..
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Re: OPL2LPT

Postby Paralel » 2018-1-13 @ 22:28

The Atom was never meant to run DOS, so that's probably why.
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Re: OPL2LPT

Postby dJOS » 2018-1-13 @ 22:36

I've made video showing my OPL2LPT (and a Covox Speech thing clone) working on my 1000 EX, I hope you enjoy it.

https://youtu.be/jVgY7fRG0Vs
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Re: OPL2LPT

Postby dreamblaster » 2018-1-13 @ 23:39

Nice video, dJOS !

I just got through a photo of the next OPL2LPT cases someone's printing for me.
Going a bit further and using 2 colors :-)
opl2lptcase.jpg
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Re: OPL2LPT

Postby dJOS » 2018-1-14 @ 00:15

dreamblaster wrote:Nice video, dJOS !

I just got through a photo of the next OPL2LPT cases someone's printing for me.
Going a bit further and using 2 colors :-)
opl2lptcase.jpg


Cheers.

Nice case design, very very cool!
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Re: OPL2LPT

Postby gdjacobs » 2018-1-14 @ 04:09

Paralel wrote:The Atom was never meant to run DOS, so that's probably why.


Some newer versions of the Atom apparently excised hardware blocks that were important for legacy compatibility, but I didn't pay much attention to it.
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Re: OPL2LPT

Postby matze79 » 2018-1-14 @ 06:33

its simply firmware issue, cpu fully works with freedos.
video hw is not 100% combatible (gma500)
and bios lacks few routines, so things who call bios routines may not work..
freedos seems to make less use of these.

Thanks adlipt works fine with jemm.
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Re: OPL2LPT

Postby gdjacobs » 2018-1-14 @ 19:13

Yup, I think it was Atom x5 or x7 chips, essentially the latest generation, which might have issues.
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Re: OPL2LPT

Postby noop » 2018-1-16 @ 04:32

One of the two chips that arrived with my 2 kits was broken. Either didn't sound, or sounded very weird and muffled. 2nd one seem to work.
Even the text color is different between these two. The one that doesn't work properly is white, while the working one is yellowish.
Also, the output seems to be quite noisy if powered via USB. Is that normal?
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Re: OPL2LPT

Postby derSammler » 2018-1-16 @ 09:20

noop wrote:Also, the output seems to be quite noisy if powered via USB. Is that normal?

Most likely due to ripple pickup. Had that too. Better connect a power bank or a separate USB power supply.
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