Re: Orpheus Soundcard: a new DOS soundcard with SPDIF/OPL3/MPU support

Posted on 2021-10-01, 08:36

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by Datadrainer

in Marvin \ Sound

in Marvin \ Sound

OPL3 programming for stereo is different (especially panning and initialization) compared to a dual OPL2 chip setup, you won't get stereo panning on OPL3 if you choose a setup meant for the original SB Pro instead of SB Pro 2. The Orpheus sound card is only compatible with SB Pro 2 in this case due …

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Re: Orpheus Soundcard: a new DOS soundcard with SPDIF/OPL3/MPU support

Posted on 2021-09-30, 12:07

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by Datadrainer

in Marvin \ Sound

in Marvin \ Sound

Small question: is the Orpheus also compatible with the SB Pro 2 or only SB Pro 1? Simcity 2000 has both options and I picked SB Pro 1 which worked fine but was curious if SB Pro 2 is also supported. For what I know, the SBPro uses two OPL2 (YM3812) chips for 9 channels each and the SBPro2 uses one …

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Re: Creative DTT3500 and FPS2000 Din Cable the Same?

Posted on 2021-09-30, 09:32

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by Datadrainer

in Marvin \ Sound

in Marvin \ Sound

Nope, sorry. That's shots of the room and the PC at the time. There is no detail and I don't want to share my photos. But where I can help you is with some info. From what I have found the adapter allows transmission of 3 stereo (uncompressed) S/PDIF signals {(FL,FR),(RL,RR),(C,SW)} Here are the …

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Re: Creative DTT3500 and FPS2000 Din Cable the Same?

Posted on 2021-09-29, 15:21

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by Datadrainer

in Marvin \ Sound

in Marvin \ Sound

Just checked my photos. I fact, it was a 15 cm adapter Digital DIN to an orange jack with 4 sections to plug in the digital output of compatible Creative Labs sound card and not green, black, orange and gray as I remembered. That makes more sense!

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Re: Creative DTT3500 and FPS2000 Din Cable the Same?

Posted on 2021-09-29, 14:56

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by Datadrainer

in Marvin \ Sound

in Marvin \ Sound

I had a DTT3500 once. Sold to a friend who fried it... Loved the collection of bezel provided with it XD The sound was good. The pinout should be compatible. I don't know why Cambridge SoundWorks would use the same connector with different wiring for hardware of the same period. But it is possible …

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Re: Creative CT4560

Posted on 2021-09-26, 21:41

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by Datadrainer

in Marvin \ Sound

in Marvin \ Sound

Never understood Creative Labs with the AWE64... The CT4560 could have been an upgrade to the original but not in the good way. I have a bunch of AWE64 and two AWE64 Gold. The cons of the AWE64 is having a proprietary memory expansion port, no Wave Blaster port. There could have been a true OPL3 or …

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Re: Gotek like Optical Driver Emulator - Is it possible?

Posted on 2021-09-18, 14:42

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by Datadrainer

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

About the XStation, you can find photos of an open unit in Google. EUiE7pEXkAAH6ok.jpg As you can see, the Cyclone 10 used there is one of these used in the netduino usbkey like boards. Although magnitudes less expensive than a Zynq or an Spartan, still isn't cheap as CPLDs or other kind or cheaper …

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Re: Gotek like Optical Driver Emulator - Is it possible?

Posted on 2021-09-18, 14:35

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by Datadrainer

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I keep seeing people mention FPGAs and them blowing out the budget for a cost-efficient device. Yes, some FPGAs can be expensive but there are others that aren't. It depends on how much processing is needed. I can't find which FPGA is on the mentioned XStation ODE, I can only find pictures of the …

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Re: Gotek like Optical Driver Emulator - Is it possible?

Posted on 2021-09-18, 14:16

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by Datadrainer

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

On a hunch, I searched the Internet for "ATAPI2SD" and found these videos from just last month by "sinowin". https://www.youtube.com/watch?v=fFdFw1K25Js https://www.youtube.com/watch?v=tCxNaDNNLMA Doesn't show the hardware and could easily be faked, but the UI mentions "Unmount SD Card" so perhaps …

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Re: Gotek like Optical Driver Emulator - Is it possible?

Posted on 2021-09-18, 12:31

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by Datadrainer

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

On a hunch, I searched the Internet for "ATAPI2SD" and found these videos from just last month by "sinowin". https://www.youtube.com/watch?v=fFdFw1K25Js https://www.youtube.com/watch?v=tCxNaDNNLMA Doesn't show the hardware and could easily be faked, but the UI mentions "Unmount SD Card" so perhaps …

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Re: Gotek like Optical Driver Emulator - Is it possible?

Posted on 2021-09-18, 10:06

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by Datadrainer

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

MAME goal is to emulate the hardware the most accurately as possible at a very low level with little to no consideration to know if the software will run on it on nowadays hardware. If the driver is done correctly the software will work as a consequence but it is done at the cost of a huge CPU …

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Re: Gotek like Optical Driver Emulator - Is it possible?

Posted on 2021-09-18, 09:08

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by Datadrainer

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

BTW, a bit off-topic but the reason I know some of the optical drive info I mentioned in my post above because MAME is (incredibly slowly) working towards actual optical drive emulation at the chip/instruction level. IE. Emulate the drive servo DSP, and the drive controller, decode and interpret …

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Re: Gotek like Optical Driver Emulator - Is it possible?

Posted on 2021-09-18, 07:42

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by Datadrainer

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Some folks here ask why there are good ODE for consoles and none for PC. What I answer is: there is something when someone think there is a market for it. It improves over time when there is indeed a market. Thread like this one, with people talking of it can make things change one day because we …

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Re: HP Vectra fan pinout

Posted on 2021-09-15, 18:46

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by Datadrainer

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

When experimenting to bypass the detection. I use 10 to 47 ohms resistors to ground these detection pins. I had to do this to my proliant 1500 and many Dells using 3 pin fan which they do not use tach for this. They ground one pin as long as fan is working but I don't have any dell fans and don't …

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Re: Still no CD drive emulators?

Posted on 2021-09-15, 17:28

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by Datadrainer

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Just a question out of curiosity: How do these CD emulators handle copy protections like laserhole etc? I was asking the same question. Protection data is embedded on the image, if they can read a CloneCD or DT image, as the protection is driven by software, if detected can be bypassed. I don't …

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Re: Still no CD drive emulators?

Posted on 2021-09-15, 17:22

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by Datadrainer

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

It is simple... Even with a Raspberry Pi, you can't get the speeds need by the IDE/SCSI bus and still have enough processing power to emulate audio (specially if you want digital audio emulation) or copy protection (specially DPM). So anything you can get will be using an FPGA, or at least a speedy …

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HP Vectra fan pinout

Posted on 2021-09-15, 14:40

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by Datadrainer

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I have a question about HP Vectra computers from 1993 to 1996. This machines uses a lot of proprietary connectors. But the one I'm interested in is the CPU FAN connector available on some motherboard from 486 to Pentium (can be present in older 386 machines too) It is a 5-pin Molex KK connector, but …

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Re: Still no CD drive emulators?

Posted on 2021-09-15, 13:07

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by Datadrainer

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

@SmooBandit. Thank you for your feedback. I followed the debugging series of the IDE Simulator. A hard work has been done on it. There was a similar attempt by Zorix called the Z-IDE, but seems abandoned. oh yeah there is also RaSCSI which can do ISO emus and its a PI so you remote in and tell it …

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Re: S3 805 color depth mystery

Posted on 2021-09-14, 18:04

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by Datadrainer

in Marvin \ Video

in Marvin \ Video

I checked the VESA table today and indeed, as I was thinking, there is no 32-bit. Color for graphics mode start from 4-bit to 16-bit, including 8 and 15-bit. That's all. Dispite this, the RAMDAC is a Trident TKD8001 24-bit but even SciTech DisplayDoctor cannot unlock the 24-bit modes. Just as …

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Re: Still no CD drive emulators?

Posted on 2021-09-14, 16:40

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by Datadrainer

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Oh, hey. Let's go a step further.... Add Wifi and possibly Wired network capability so you can load images over the network. Along with a mobile app it would be a really sweet setup and really expensive. Price is not a matter of dreams ;) More seriously, a question may be asked. What can be …

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