Re: Tiny Vortex86-based DOS gaming PC - weeCee

Posted on 2021-07-03, 05:53

by

by Mu0n

in Marvin \ System Specs

in Marvin \ System Specs

Most of the fm synth I've played sounds just fine, even inside Dune 1, but there's this heavily distorted part when you go into the planet view, or the encyclopedia, where the main instrument is butchered. Take a listen. As I wrote before, it's not that big of a deal when it happens so rarely, but …

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Re: Tiny Vortex86-based DOS gaming PC - weeCee

Posted on 2021-07-02, 13:07

by

by Mu0n

in Marvin \ System Specs

in Marvin \ System Specs

Thanks guys, that did the trick for some quick and massive ftpserv transfers. on my modern win10 machine, I used WINSCP in ftp mode on the Vortex86DX, I enabled mtu 1500 but not most the other optional settings. I hit some snags when there were a lot of files and/or subdirectories to transfer, …

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Re: Tiny Vortex86-based DOS gaming PC - weeCee

Posted on 2021-07-02, 05:37

by

by Mu0n

in Marvin \ System Specs

in Marvin \ System Specs

Onto the wonderful (ugh) world of MS-DOS 6.22 network capability installation. I'm following this page: http://www.dmp.com.tw/tech/vortex86dx/ DOS NDIS driver: pci-ndis.zip and this page: https://www.legroom.net/howto/msdos I'm stuck fairly early in the process: with MS Network Client v3.0 (which …

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Re: Tiny Vortex86-based DOS gaming PC - weeCee

Posted on 2021-07-01, 14:44

by

by Mu0n

in Marvin \ System Specs

in Marvin \ System Specs

And Machine #1, tried something slightly different: -Desoldered the old 24LC04B -Soldered the new 24AA116T but kept it completely empty as new -Kept the old 6.8 kOhm. I couldn't find a control at address 0x538 with bypassed config.sys and thus no hostload. so I desoldered the 6.8 kOhm and soldered a …

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Re: Tiny Vortex86-based DOS gaming PC - weeCee

Posted on 2021-06-30, 20:22

by

by Mu0n

in Marvin \ System Specs

in Marvin \ System Specs

After I rewrote it with this thread's good CS4237.BIN, all works, without invoking the /o (override) switch of cwdinit.exe. Are you sure you used the right file? Unless I'm mistaken, the BIN files I uploaded were only for hostload init; they lack the necessary header for EEPROM use. You may want to …

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Re: Tiny Vortex86-based DOS gaming PC - weeCee

Posted on 2021-06-30, 18:42

by

by Mu0n

in Marvin \ System Specs

in Marvin \ System Specs

24AA16-T/SN used (it has plenty of room to spare) https://www.mouser.ca/ProductDetail/Microchip/24AA16-I-SN/?qs=n%2FfJlMG9rCawxJfQfPmE3A==&gclid=CjwKCAjwrPCGBhALEiwAUl9X08ZWD0TejV3LRIq-gJTYV52pwRvQ1-jeCkA3w9uROvz_TWk8nDSCfxoCT8MQAvD_BwE 3.3 kOhm for pull-up all installed on machine #2 I initially …

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Re: Tiny Vortex86-based DOS gaming PC - weeCee

Posted on 2021-06-30, 13:49

by

by Mu0n

in Marvin \ System Specs

in Marvin \ System Specs

Things that still don't work but they're separate vortex86dx problems: -dune 1 runs too fast and still does no sound You tried disabling L1/L2 cache and altering the CPU clock divider in the BIOS? I fixed it once I checked what install.exe did and did not do. I had a dune.bat which had the wrong …

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Re: Tiny Vortex86-based DOS gaming PC - weeCee

Posted on 2021-06-29, 21:11

by

by Mu0n

in Marvin \ System Specs

in Marvin \ System Specs

I received my stuff earlier than expected and insta-soldered my new crystal Things that work: -megamid in midi mode right off the bat -duke3d setup tests with midi waveblaster music -duke3d itself after removing smartdrive from autoexec.bat (still crashes upon leaving the game but meh, that's minor …

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Re: Tiny Vortex86-based DOS gaming PC - weeCee

Posted on 2021-06-28, 13:45

by

by Mu0n

in Marvin \ System Specs

in Marvin \ System Specs

Yeah, already on that. My shipment of 16.9344 is arriving on Wednesday, as well as new 1206 package resistors in 2.2 kOhm (what my specific eeprom doc asks for), 3.3 kOhm as you suggested and 4.7 kOhm as per rasteri's design doc. I had 6.8 because of a reading mistake or because that's what was …

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Re: Tiny Vortex86-based DOS gaming PC - weeCee

Posted on 2021-06-24, 00:52

by

by Mu0n

in Marvin \ System Specs

in Marvin \ System Specs

Here we go, in VIDEO FORM, an inspection of the soldered CS4237B-KQ with a few passes of pins 51-75 and one of pins 1-25. This is machine #2, where I did it more confidently, but it still exhibits MIDI OUT erratic behavior, same as machine #1. Witness my terrible soldering https://www.youtube.com/ …

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Re: Tiny Vortex86-based DOS gaming PC - weeCee

Posted on 2021-06-24, 00:45

by

by Mu0n

in Marvin \ System Specs

in Marvin \ System Specs

Did you also share a parts order? I just ask because I'm always ordering the wrong components values, e.g. on my first batch I ordered 16MHz crystals instead of 16.9344MHz, could something like that have happened? Uh...you still list 16.000 MHz in your BOM list over at circuitmaker: https:// …

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Re: Tiny Vortex86-based DOS gaming PC - weeCee

Posted on 2021-06-23, 22:00

by

by Mu0n

in Marvin \ System Specs

in Marvin \ System Specs

anyway, the janky wire reprogramming should work just fine, just verify the contents after you've programmed it. Good luck ! Yes, it did work a week or 2 ago. The very first thing I did after writing the bin file was to verify it against the bin file and it said no error (I posted the shot). I can …

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Re: Tiny Vortex86-based DOS gaming PC - weeCee

Posted on 2021-06-23, 21:56

by

by Mu0n

in Marvin \ System Specs

in Marvin \ System Specs

Possibly, the guy local to me (who uses boards printed from the same batch as mine, we shared) definitely uses better technique in soldering and cleaning since he's an electronics professional... His boards work in sb/adlib /midi Did you also share a parts order? I just ask because I'm always …

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Re: Tiny Vortex86-based DOS gaming PC - weeCee

Posted on 2021-06-23, 20:16

by

by Mu0n

in Marvin \ System Specs

in Marvin \ System Specs

Mu0n , If you got a couple of resistors, transistors, an old parallel port printer cable, you can bodge your own i²C programmer. https://scienceprog.com/i2c-eprom-programmer/ I used it once to read out an xbox eeprom. I have a TL866ii Plus programmer that works fine - I programmed some replacement …

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Re: Tiny Vortex86-based DOS gaming PC - weeCee

Posted on 2021-06-23, 19:43

by

by Mu0n

in Marvin \ System Specs

in Marvin \ System Specs

I knew it wasn't the problem at all (since my SC88st is also plagued by weird notes), but I tried out the S2 on my Vibra Ct2940 in my 486 and it works well. Next up, Mu0n's exposed soldering technique fully zoomed in, vulnerable to the critics on the world stage! It is possible I'm not completely …

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Re: Tiny Vortex86-based DOS gaming PC - weeCee

Posted on 2021-06-23, 18:55

by

by Mu0n

in Marvin \ System Specs

in Marvin \ System Specs

I knew it wasn't the problem at all (since my SC88st is also plagued by weird notes), but I tried out the S2 on my Vibra Ct2940 in my 486 and it works well. Next up, Mu0n's exposed soldering technique fully zoomed in, vulnerable to the critics on the world stage! It is possible I'm not completely …

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Re: Tiny Vortex86-based DOS gaming PC - weeCee

Posted on 2021-06-23, 11:25

by

by Mu0n

in Marvin \ System Specs

in Marvin \ System Specs

Is it possible to get a dos program to wipe out the eeprom? Did you, 640K!enough write hostload? Could it be modified to blank out a size specified rom I would just desolder the EEPROM and blank it in your programmer - you have a heat gun right? I've desoldered my EEPROM probably 15 times now while …

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Re: Tiny Vortex86-based DOS gaming PC - weeCee

Posted on 2021-06-22, 20:24

by

by Mu0n

in Marvin \ System Specs

in Marvin \ System Specs

Is it possible to get a dos program to wipe out the eeprom? Did you, 640K!enough write hostload? Could it be modified to blank out a size specified rom

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Re: Tiny Vortex86-based DOS gaming PC - weeCee

Posted on 2021-06-22, 20:13

by

by Mu0n

in Marvin \ System Specs

in Marvin \ System Specs

Roger that on the eeprom info, thanks. Get a load of this. On a whim, I decided to hastily build (not too hastily) my 2nd unit but with minimal functionality, meaning: no usb port, no ethernet no gameport. I didn't solder the eeprom subcircuit at all and didn't include the PC speaker subcircuit ( …

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Re: Tiny Vortex86-based DOS gaming PC - weeCee

Posted on 2021-06-21, 21:46

by

by Mu0n

in Marvin \ System Specs

in Marvin \ System Specs

What... I'll film my eeprom in super close up shot tonight and would appreciate if anyone can tell me if it can be vastly improved. Did I damage a capacitor near my eeprom? That could mess with the startup of a writing command...

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