VOGONS


TNDLPT : Tandy Sound on parallel port

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Reply 61 of 170, by matze79

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pdw wrote:

It's not possible to intercept the standard Tandy audio port 0C0h with EMM386. With EMM386 the TSR intercepts ports 01E0h (later Tandys), 0205h (IBM PS/1 sound card) and 02C0h (the Lo-Tech card).

What Games support 01E0h ?
i don't know any.

Could the TSR be made to also support forwarding 0C0H to 2C0h to support the Tandy Soundcard ?
i also think i can send you a card when its ready 😀
this might come handy, due to the card can not listen on 0C0H on 286+.

Does JEMMX work with 0C0H ?

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Reply 62 of 170, by pdw

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What does that mean specifically in terms of compatibility regarding EMM386? Is standard Tandy not supported at all with EMM?

Standard Tandy won't work with EMM386. You'll need to patch the games or switch to QEMM.

Does JEMMX work with 0C0H ?

I don't know. I haven't started on a JEMM version of the driver yet. JEMM's documentation is very fragmentary, there's no way to know without testing.

What Games support 01E0h ? i don't know any.

Some Sierra games have a driver for these "new Tandys". But that driver has machine checks and it also looks like it tries to use the Tandy DAC, so it won't work. I don't know of any other games.

Could the TSR be made to also support forwarding 0C0H to 2C0h to support the Tandy Soundcard ?

Sure. That's easy.

Reply 65 of 170, by dreamblaster

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jaZz_KCS wrote:

So I take it as there will be a TSR package available in the veins of the adlipt package, with a patcher and a TSR?

Yeah, a TSR is already under test and seems to work.
No patcher yet, but it can be done (especially for sierra games).

Visit http://www.serdashop.com for retro sound cards, video converters, ...
OPL3LPT, X2, S2, S2P, MCE2VGA, ... many projects !
New X2GS sound card : https://www.serdashop.com/X2GS
Thanks for your support !

Reply 66 of 170, by Scali

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pdw wrote:

It's not possible to intercept the standard Tandy audio port 0C0h with EMM386. With EMM386 the TSR intercepts ports 01E0h (later Tandys), 0205h (IBM PS/1 sound card) and 02C0h (the Lo-Tech card).

Hum, for the lo-tech Tandy Clone sound card, I modified TEMU to redirect C0h to 1E0h or other ports, and that seemed to work fine. I believe it sets up its own v86 environment. It should be easy to replace my redirection code with code for TNDLPT, then we'll have a TSR without this problem.

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Reply 67 of 170, by matze79

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yeah but temu has plenty of incombatiblities.

Does not work on:
Sanyo 386 Laptop - 386SX20
Escom Blackmate - 386SX33

it loads the tsr, and after 1 or 2 seconds system looks up at command prompt.

>Is this your experience or are you just making an assumption?

Yeah resource conflict.
it may work on a 286XT but not on a AT Machine.

My K6 will only boot with 2C0 set on the Card.

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Reply 68 of 170, by bjwil1991

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CuteMouse 2.0 Alpha 4 does the same thing to me on my Packard Bell Pack-Mate 28 Plus, but version 1.9.1 and 2.1 Beta 4 works.

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Reply 70 of 170, by dreamblaster

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new prototype

tndlpt.jpg
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Visit http://www.serdashop.com for retro sound cards, video converters, ...
OPL3LPT, X2, S2, S2P, MCE2VGA, ... many projects !
New X2GS sound card : https://www.serdashop.com/X2GS
Thanks for your support !

Reply 74 of 170, by carlostex

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matze79 wrote:

Yeah resource conflict.
it may work on a 286XT but not on a AT Machine.

It works on my 286 and on my 386. Granted i have no hardware inside that makes use of High DMA. The only downside is increased noises coming from the card, compared when using the card on an XT.

Reply 75 of 170, by dreamblaster

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Solarstorm wrote:

What kind of EDA do you use?

Kicad

Visit http://www.serdashop.com for retro sound cards, video converters, ...
OPL3LPT, X2, S2, S2P, MCE2VGA, ... many projects !
New X2GS sound card : https://www.serdashop.com/X2GS
Thanks for your support !

Reply 76 of 170, by matze79

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carlostex wrote:
matze79 wrote:

Yeah resource conflict.
it may work on a 286XT but not on a AT Machine.

It works on my 286 and on my 386. Granted i have no hardware inside that makes use of High DMA. The only downside is increased noises coming from the card, compared when using the card on an XT.

Did few tests, it also works on my 486 ISA, but not on K6 and Pentium, also does not work on my 486 PCI System.

@dreamblaster
Nice,i like the pot on the TNDLPT =)

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Reply 77 of 170, by matze79

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Did you choose Resistors and Capacitors for the Input Stage of the Amplifier to match the original Tandy ?
Somewhere i saw the schematic of the Tandy Amplifier Board. 😀
EDIT:
Found it.ftp://ftp.mindcandydvd.com/pub/drivers/Tandy/ … ence_Manual.pdf
Site 81 shows the Amplifier.

Lo-tech uses 470nf for Output Capacitor, you use 47uf.

And here is the Tandy 1000EX:

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Co2 - for a endless Summer

Reply 79 of 170, by digger

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dr.zeissler wrote:
the next BIG stuff should be an all in one device: - Covox (stereo) - OLP2LPT - OPL3LPT - DSS - TSS and switchable per software […]
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the next BIG stuff should be an all in one device:
- Covox (stereo)
- OLP2LPT
- OPL3LPT
- DSS
- TSS
and switchable per software so you can "configure" the device in a batch before starting the game 😀

In addition, it would be really nice if some of these modes could be combined and used at the same time. So one music device (TSS/OPL2/OPL3) together with one DAC device (Covox/Stereo-on-one/DSS), all on a single parallel port. This would allow machines lacking both available ISA slots and built-in Sound Blaster compatibility (such as older laptops, Microchannel PS/2 systems and later PCI/PCIe-only computers) to support both music and digital audio in many games, even if they would require some software emulation and/or patches to make it work with most existing DOS games. I recently started a separate topic for that: Multiplexing multiple sound devices on a single parallel port? (OPL2LPT, DSS, etc)