Re: Tandy 3 Voice Sound - SN76489 ISA Soundcard Project

Posted on 2020-01-12, 17:47

by

by Fagear

in Marvin \ Sound

in Marvin \ Sound

But something is weird there, why it shows Using LPT ? Maybe you have a older version ? i attached mine. Thanks, I've tested your version and it doesn't work as well. It also spits out "Invalid" messages and produces garbage sound. Probably it doesn't like VGM files that I downloaded for SMS... the …

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Re: FMonster, the monster of sound synth

Posted on 2020-01-12, 14:04

by

by Fagear

in Marvin \ Sound

in Marvin \ Sound

One of those cheap heat map guns on ebay? Exact opposite. Flir E4. Bought it recently. I don't understand why you use a Buffer and @decoding for each chip. Only some buffers and a CPLD for @decoding cad do everything and it will save so many space. I do not want any programmable device on the …

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Re: FMonster, the monster of sound synth

Posted on 2020-01-12, 02:21

by

by Fagear

in Marvin \ Sound

in Marvin \ Sound

I've finally got to test the "3-voice PSG" board (SN76489)! And it works just fine. Of course there were some minor bugs as: - I've forgot to connect power to one logic IC that provided clock for SN76489 - Some capacitors and resistors needed to be added to reduce noise level - I've connected LED to …

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Re: Tandy 3 Voice Sound - SN76489 ISA Soundcard Project

Posted on 2020-01-12, 02:04

by

by Fagear

in Marvin \ Sound

in Marvin \ Sound

Can I chime in? I've made myself my own variant of card on SN76498 for the purpose of FMonster debugging. It is not based on Lotech or TNDY design, but is compatible with both from the used ports perspective. I've managed to get most of the games launch and run successfully with TSR (thanks, pdw ) …

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Re: Best software to test IDE drives in Windows 2k/XP

Posted on 2019-12-26, 08:43

by

by Fagear

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

HDTune for quick performance tests. HDDScan (v3.x) and/or Victoria (v4.x, 5.x) for surface access time scan (to reveal bad blocks and slow sectors).

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Re: Rainbow Arts Soundman ? Adlib Clone - can it play Digital Sound ?

Posted on 2019-12-12, 22:54

by

by Fagear

in Marvin \ Sound

in Marvin \ Sound

I've tried to decode and simulate address decoder of Rainbow Arts Soundman from photos. This card puts OPL2 on base addresses: 0x380, 0x388, 0x38E. And 8-bit Non-DMA DAC on base addresses: 0x220, 0x221, 0x228, 0x229, 0x22E, 0x22F, 0x300, 0x301, 0x308, 0x309, 0x30E, 0x30F And all of those ports are …

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Re: FMonster, the monster of sound synth

Posted on 2019-12-12, 22:51

by

by Fagear

in Marvin \ Sound

in Marvin \ Sound

Two more months passed... I've fixed some errors in some blocks and rearranged those on the board. New order (left to right): SN PSG, 2xSAA (CMS), 2xOPL2 (2xAdLib, SB Pro), AY (CSM), 2xSID (2xSSI-2001, DuoSID), OPL3. Filename fmonster_2019-12-12_01.png File size 183.38 KiB Views 1911 views File …

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Re: FMonster, the monster of sound synth

Posted on 2019-12-09, 09:03

by

by Fagear

in Marvin \ Sound

in Marvin \ Sound

Rainbow Arts Soundman also listen to 0x300 maybe Voice Master too? I've tried to decode and simulate address decoder of Rainbow Arts Soundman from photos. That's what I've came up with. ports_RainbowRunner_2019-12-09_01.png ports_RainbowRunner_2019-12-09_02.png ports_RainbowRunner_2019-12-09_03.png …

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Re: FMonster, the monster of sound synth

Posted on 2019-12-02, 09:55

by

by Fagear

in Marvin \ Sound

in Marvin \ Sound

jaZz_KCS wrote: Please put me on the list Ok. And about my question above? LPT DAC (0x378/0x278), Covox Sound Master (0x2X2/0x2XF), Covox Voice Master (0x22F)... Anything else? No more DACs were known? (no-DMA variants)

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Re: FMonster, the monster of sound synth

Posted on 2019-11-22, 09:46

by

by Fagear

in Marvin \ Sound

in Marvin \ Sound

There is also a variant of auto detecting Stereo ability.. ... Here is shock_`s latest schematic, without warranty. se are descripted here: https://dosreloaded.de/forum/index.php/Thread/1091-Disney-Soundsource-Clone-DOS-Reloaded-DE-Edition/ Sorry, but that is a type of circuit I've been talking …

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Re: FMonster, the monster of sound synth

Posted on 2019-11-20, 22:00

by

by Fagear

in Marvin \ Sound

in Marvin \ Sound

Now working on some minor optimizations of "big board": - tidying up silkscreen - tidying up shared logic (Reset inverter, /IOR and /IOW repeaters, high-address decoder) - adding debug LEDs (reset/power rails/MIDI TX-RX) 2019-11-21 00.54.16.png Board now decodes 15 of 16 bits of address bus (instead …

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Re: Covox Sound Master Reverse Engineering / Replica

Posted on 2019-11-08, 00:22

by

by Fagear

in Marvin \ Sound

in Marvin \ Sound

An update on CSM. SMD variant is almost done. Filename AY_SMD_2019-11-07_top.png File size 110.26 KiB Views 2969 views File comment CSM @2019-11-07

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Re: Covox Sound Master Reverse Engineering / Replica

Posted on 2019-10-19, 16:15

by

by Fagear

in Marvin \ Sound

in Marvin \ Sound

In the meantime I've made PCB for this: Filename AVR_AY_2019-10-16_top.png File size 11.58 KiB Views 3059 views File comment AVR-AY top Filename AVR_AY_2019-10-16_bottom.png File size 62.28 KiB Views 3059 views File comment AVR-AY bottom

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Re: FMonster, the monster of sound synth

Posted on 2019-10-02, 17:54

by

by Fagear

in Marvin \ Sound

in Marvin \ Sound

Will most DOS games sound different but comprehensible at those speeds, or are those settings better suited to tracker playback of some sort? For DOS games, expecting Covox Sound Master user should select 1.7898 MHz as is on original CSM . Other frequencies are listed for listening music from …

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Re: FMonster, the monster of sound synth

Posted on 2019-10-01, 23:36

by

by Fagear

in Marvin \ Sound

in Marvin \ Sound

Look at what I've got on the left side of the board... :evil: fmonster_2019-10-02_01.png AY block required 4 different clock sources, so I've had not only add one more generator (4th one) into clock-gen block, but also to heavily optimize and re-route bottom part of 2xSID block and ISA bus part of …

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Re: Covox Sound Master Reverse Engineering / Replica

Posted on 2019-10-01, 23:24

by

by Fagear

in Marvin \ Sound

in Marvin \ Sound

An update. I've revised and updated GAL replacement logic and redid SMD layout from scratch. :dead: csm_sch_2019-10-01 22.28.19.png I've managed to remove a couple of ICs from the GAL replacement section and re-structure logic utilization between different parts of the board. Also, at the moment I …

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Re: Creative Music System (CMS) / Game Blaster MIDI drivers

Posted on 2019-10-01, 22:04

by

by Fagear

in Release Announcements

in Release Announcements

Tronix hello. I've implemented your circuit in "CMS" debug block for FMonster. I can send you blank debug board if you are interested.

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Re: FMonster, the monster of sound synth

Posted on 2019-09-22, 21:05

by

by Fagear

in Marvin \ Sound

in Marvin \ Sound

Nothing particularly interesting to add, but i just wanna say i'm very impressed by Fagear's work. The optimization of the modules os nothing shirt of amazing, and i've wondered about the possibility of a lite version of this card including only CSM, 1*SID (instead of duosid), GameBlaster and Tandy …

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Re: New sound card project: AWE64 Legacy

Posted on 2019-09-21, 22:07

by

by Fagear

in Marvin \ Sound

in Marvin \ Sound

...strange behaviour of the Line In jack on CT4520. In fact, it did mono while it was clearly supposed to be a stereo input. CT4390 acted the same. We've become curious, traced the signal, and had to desolder the jack, and we've found a jumper trace there, shortening L and R channels of the stereo …

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Re: FMonster, the monster of sound synth

Posted on 2019-08-26, 16:06

by

by Fagear

in Marvin \ Sound

in Marvin \ Sound

WAs the -12V is the biggest load on the board, I think it is fair to assume this will have to come via the ISA bus, and can't be generated via DCDC converters on the board itself. No, +12V rail has the biggest load (but still within specs for ISA). The problem is in current paths if molex will be …

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