Re: The King has left the Building.

Posted on 2024-05-26, 19:47

by

by snipe3687

in Marvin \ System Specs

in Marvin \ System Specs

"No other CPU made such a difference" Really????? The z80, 6502 and m68000 would like to have a chat with you. I mean you could go back to the 8008 too which essentially started the lineage of the architecture we still use today (although I can’t remember if the 4004 was also part of that or just a …

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Re: The King has left the Building.

Posted on 2024-05-26, 12:36

by

by snipe3687

in Marvin \ System Specs

in Marvin \ System Specs

"No other CPU made such a difference" Really????? The z80, 6502 and m68000 would like to have a chat with you. I mean you could go back to the 8008 too which essentially started the lineage of the architecture we still use today (although I can’t remember if the 4004 was also part of that or just a …

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Re: PicoGUS: ISA sound card emulator with Raspberry Pi Pico (Gravis Ultrasound, AdLib, MPU-401, Tandy, CMS)

Posted on 2024-05-26, 12:27

by

by snipe3687

in Marvin \ Sound

in Marvin \ Sound

Awesome... only bad thing is I'll be tempted to get the Dreamblaster XGS!!! :D I mean, it would save shipping for when you inevitably crack and buy the X2GS, right? I know that my journey to buying my own X2GS went something like this: "Oh cool, LGR has a review of a new wavetable module on his …

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Re: Tube Time: Announcing The Snark Barker, a 100% Compatible SB 1.0 Replica!

Posted on 2024-05-26, 00:19

by

by snipe3687

in Marvin \ Sound

in Marvin \ Sound

It’s weird when I run the test And I checked the version sometimes I’ll get 1.02 and sometimes I get 2.01 so something funky either with the test or the DSP chip itself If you sometimes get the wrong version number, the interface between the ISA bus and the DSP is obviously not working reliably, or …

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Re: HIDman - USB to PS/2 converter (Open Source)

Posted on 2024-05-25, 21:12

by

by snipe3687

in Release Announcements

in Release Announcements

About the button - if you decide to move it to 3.4, you'd still need to keep some kind of way to short 4.6 to ground for bootloader mode, right...? I'll make sure my firmware checks for 3.4 before it does anything else. So 4.6 will only be needed if the firmware gets corrupted somehow. As a last …

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Re: Orpheus II soundcard thread *** LT board now available ***

Posted on 2024-05-25, 21:10

by

by snipe3687

in Marvin \ Sound

in Marvin \ Sound

I don’t suppose there’s gerbers for this are there? I don’t mind paying the price for it but I like building them. I honestly don’t even need one with the PicoGus being available now but I do like to have actual hardware for some situations vs emulation.

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Re: ITX-Llama (Vortex86EX ITX motherboard) - DONE!

Posted on 2024-05-24, 20:26

by

by snipe3687

in Marvin \ System Specs

in Marvin \ System Specs

We won't see EX3 this year :/. Did you pull this out of your ass, or do you know more than I? ;) I have it on good authority that DMP will get their chips delivered from TSMC in July, so your statement seems overly pessimistic... Ooohh you have an inside guy? Ask them when they are going to restock …

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Re: Tube Time: Announcing The Snark Barker, a 100% Compatible SB 1.0 Replica!

Posted on 2024-05-24, 20:03

by

by snipe3687

in Marvin \ Sound

in Marvin \ Sound

also, the DSP doesn't appear to be connected to the SAA chips in anyway. those should be completely independent correct? If I remember correctly, the SAA chips are quite slow and accessing them is supposed to generate wait-states on the ISA bus using the IOCHRDY line. If your system locks up as …

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Re: Tube Time: Announcing The Snark Barker, a 100% Compatible SB 1.0 Replica!

Posted on 2024-05-24, 16:20

by

by snipe3687

in Marvin \ Sound

in Marvin \ Sound

also, the DSP doesn't appear to be connected to the SAA chips in anyway. those should be completely independent correct?

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Re: Tube Time: Announcing The Snark Barker, a 100% Compatible SB 1.0 Replica!

Posted on 2024-05-24, 14:58

by

by snipe3687

in Marvin \ Sound

in Marvin \ Sound

appiah4 wrote on 2024-05-24, 14:54: I also initially had similar issues due to my Atmel DSP acting up but reflashing it did the trick for me.. is there anything special you have to do? I just selected the chip from the menu, loaded the hex file and hit program but I've had others in the past that …

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Re: Tube Time: Announcing The Snark Barker, a 100% Compatible SB 1.0 Replica!

Posted on 2024-05-24, 14:51

by

by snipe3687

in Marvin \ Sound

in Marvin \ Sound

Hello. I just finished my two first SB. I must report that all my 89S51 from mouser were defective (bad checkid FF FF on a T48 and doesnt work even when you program them bypassing the checkid test)... I lost two days with testings, schematics, oscilloscope... Only because of them. It worked with …

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Re: ITX-Llama (Vortex86EX ITX motherboard) - DONE!

Posted on 2024-05-24, 13:46

by

by snipe3687

in Marvin \ System Specs

in Marvin \ System Specs

Ah well. Might be worthwhile just building my own card to plug in but I bet the concept would work for other chips. I know the SM-750 chips are pretty readily available and have great performance with the SOM based on the video Rasteri did anyway. Since those are already available on cards in the …

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Re: ITX-Llama (Vortex86EX ITX motherboard) - DONE!

Posted on 2024-05-22, 14:13

by

by snipe3687

in Marvin \ System Specs

in Marvin \ System Specs

Ah well. Might be worthwhile just building my own card to plug in but I bet the concept would work for other chips. I know the SM-750 chips are pretty readily available and have great performance with the SOM based on the video Rasteri did anyway. Since those are already available on cards in the …

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Re: ITX-Llama (Vortex86EX ITX motherboard) - DONE!

Posted on 2024-05-22, 13:48

by

by snipe3687

in Marvin \ System Specs

in Marvin \ System Specs

Maybe a completely ridiculous thought but I was doing some research on custom built graphics cards, and I came across a few 3Dfx recreation cards that use the VSA-100 chip that's seemingly still floating around out in the wild. Probably not as well stocked as other NOS chips like the CS4237b but I …

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Re: ITX-Llama (Vortex86EX ITX motherboard) - DONE!

Posted on 2024-05-22, 12:52

by

by snipe3687

in Marvin \ System Specs

in Marvin \ System Specs

Maybe a completely ridiculous thought but I was doing some research on custom built graphics cards, and I came across a few 3Dfx recreation cards that use the VSA-100 chip that's seemingly still floating around out in the wild. Probably not as well stocked as other NOS chips like the CS4237b but I …

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Re: PicoGUS: ISA sound card emulator with Raspberry Pi Pico (Gravis Ultrasound, AdLib, MPU-401, Tandy, CMS)

Posted on 2024-05-21, 12:39

by

by snipe3687

in Marvin \ Sound

in Marvin \ Sound

Does anyone have the design files for the I/O bracket? I really enjoy building my own cards which I'm in the process of, but I don't necessarily want to do a 3D printed bracket. I will if I have to though. Problem is, I don't see the files anywhere for the one that is being sold with the PicoGus …

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Re: PicoGUS: ISA sound card emulator with Raspberry Pi Pico (Gravis Ultrasound, AdLib, MPU-401, Tandy, CMS)

Posted on 2024-05-21, 12:11

by

by snipe3687

in Marvin \ Sound

in Marvin \ Sound

Does anyone have the design files for the I/O bracket? I really enjoy building my own cards which I'm in the process of, but I don't necessarily want to do a 3D printed bracket. I will if I have to though. Problem is, I don't see the files anywhere for the one that is being sold with the PicoGus …

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Re: TinyLlama 3

Posted on 2024-05-19, 14:35

by

by snipe3687

in Marvin \ System Specs

in Marvin \ System Specs

I noticed you have the CH559 chip on the schematic. I’m wondering since you have an RP2040 on the ITX for the HID that works nicely and the picoGus has the USB joystick functionality, couldn’t you leverage that for the HID somehow? It would save some space on the board. Just a curiosity really.

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Re: ITX-Llama (Vortex86EX ITX motherboard) - DONE!

Posted on 2024-05-18, 16:17

by

by snipe3687

in Marvin \ System Specs

in Marvin \ System Specs

Someone posted a 3D printer one as well. I had to nudge the keyboard/mouse ports a little, but it is otherwise perfect. If you don't have a 3D printer, check local libraries. Sometimes they have 3D printers. I have a 3d printer but I suck at using it. My stuff always comes out looking bad so I’ll …

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Re: ITX-Llama (Vortex86EX ITX motherboard) - DONE!

Posted on 2024-05-18, 14:14

by

by snipe3687

in Marvin \ System Specs

in Marvin \ System Specs

Alright, so I was able to pack everything (ITX llama, Voodoo 3000 and a SATA) in the mini ITX case (bought off ebay and attached the picture). To do that, I had to use an AGP riser from MODDIY. But man, that was then the nightmare began. With the riser I was unable to get the card working. Then I …

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