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

Posted on 2023-11-23, 11:04

by

by jcarvalho

in Marvin \ Sound

in Marvin \ Sound

Hi Ian! Congrats for the new board design! Very nice indeed! Is the new firmware be useful on the "old" model or it is just for the new PCB? Thanks!

---

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

Posted on 2023-07-26, 10:19

by

by jcarvalho

in Marvin \ Sound

in Marvin \ Sound

The project is still open source of course... Are there plans to make it closed project I guess once it reaches some finished state? Sorry to ask but, what would be the benefit of being a closed project? Maybe charging for the FW? If this is the main thing, I dont think that Ian started this …

---

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

Posted on 2023-07-24, 21:58

by

by jcarvalho

in Marvin \ Sound

in Marvin \ Sound

P.S. PLEASE IGNORE THIS ---> for some reason the old firmware also does not output sound... Maybe the card developed some fault but initialize correctly and passes the ram verification tool I once had one of those I2C DACs with a lost channel - ended up simply being a bad soldering of the connector …

---

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

Posted on 2023-07-24, 14:28

by

by jcarvalho

in Marvin \ Sound

in Marvin \ Sound

Problems with FW 0.7 Removed picoGus from slot and programmed directly from usb port, card inserted in isa slot and using the provided pgusinit it reports good, picogus initialized with success but no sound on cmod or second reality. Verses demo doesnt start (No more sw was tried) reflashing it on …

---

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

Posted on 2023-06-14, 19:05

by

by jcarvalho

in Marvin \ Sound

in Marvin \ Sound

Hi Ian! Can we expect a new firmware release soon? More on the GUS side emulation? Thanks!

---

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

Posted on 2023-06-12, 13:59

by

by jcarvalho

in Marvin \ Sound

in Marvin \ Sound

By the way, do you have a donation page? I tried to look couldn't find anything. I've finally added a Ko-fi link to my Github. Also I'd gladly take any motherboard donations, as I'd just use any monetary donations to buy any motherboards with chipsets I don't have to test on. :) Finally!! Now we …

---

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

Posted on 2023-04-19, 23:41

by

by jcarvalho

in Marvin \ Sound

in Marvin \ Sound

Greetings, I am new here, really very new to retro PC related stuff, I built a PicoGUS, but once installed it shows this as pgusinit.exe output: PicoGUS detected: Firmware version: ||||||||||||||||||||||||||||||||||||||||| ||||||||||||||||||||||||||||| (a lot of these, its not this symbol, is …

---

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

Posted on 2023-04-14, 20:25

by

by jcarvalho

in Marvin \ Sound

in Marvin \ Sound

Does anybody knows when polpo will resume the development of the firmware? It is almost there... Maybe the last stretch would be the more difficult to do..

---

Re: Limit DOS RAM memory (XMSDSK / HimemX / JemmEx), DOS RAM size limit

Posted on 2023-04-05, 21:46

by

by jcarvalho

in DOS

in DOS

Hello guys. I have an Apollo Pro 133 chipset Board from MSI MS-6153 with 256Mb RAM, and I am using Phil Computer Lab Dos Start for entering in DOS mode. Using R.Loew LIMITMEM.sys I cant go lower than 65Mb of XMS, but in config.sys I have the DEVICE=C:\LIMITMEM\LIMITMEM.sys 16 Using BURNMEM DEVICE …

---

Re: Board has L2 Cache Slots but no Option in Bios and Jumpers not there

Posted on 2022-09-21, 06:10

by

by jcarvalho

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Hi! If you can, dump the bios and with a program to bios mod look for the hidden settings, change them and burn bios back

---

Re: Amiga 500 workbench help kickstart roms

Posted on 2021-10-07, 07:02

by

by jcarvalho

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Hi In my experience, to run whdload you will need 2mb chip ram, not impossible in a500 but very expensive. Keep it simple as it is and you will get the best results. My A2000 with kickstart 3.1.4 2mb chip ram, and tf536 has a low compatibility with adf games. Even with modified kickstart, injected …

---

Re: What motherboard for a 1.4GHz p3 Tualitin CPU?

Posted on 2021-09-02, 09:33

by

by jcarvalho

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Qdi advance 10t. Via chipsets. I have one with tualatin 1.4

---

Re: Are K6-iii chips obtainable?

Posted on 2021-06-16, 08:08

by

by jcarvalho

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

They are overpriced and overhyped IMO. Sure, they can be downclocked using SetMul which gives them a lot of performance range. However, I would personally just build two separate systems: one for DOS and a second, much more powerful one for Windows 9x gaming. A Pentium 3 or an Athlon system will …

---

Re: Weird problem TSENG LABS ET4000AX and NIC with xt-ide bios

Posted on 2021-05-31, 10:59

by

by jcarvalho

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

What size eeprom is being used for the XTIDE ROM? You shouldn't need a chip any larger than 16kbyte. I'm not familiar with the Realtek as a XTIDE host, but when using a 3com it definitely needs to have the ROM base address and ROM size set correctly so as not to clash with anything. Hi Sir, I am …

---

Re: Weird problem TSENG LABS ET4000AX and NIC with xt-ide bios

Posted on 2021-05-30, 19:54

by

by jcarvalho

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I think the JP3 jumper on your Tseng controls 16-bit operation (vs 8-bit), did you also try the other position? Hi Sir, yes, I have tried, when I move to the other position, I can see squares in character size with various colours on screen in random places and no boot, just freezes. I tried all …

---

Re: Weird problem TSENG LABS ET4000AX and NIC with xt-ide bios

Posted on 2021-05-30, 14:18

by

by jcarvalho

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I guess I didn't express myself properly. When I said remove the XT-IDE I meant the ROM or the entire NIC. It doesn't matter what kind of card the ROM is in, that's just a carrier with a bit of address decoding. So again, does it work or hang with the XT-IDE ROM removed (and IDE still connected)? …

---

Re: Weird problem TSENG LABS ET4000AX and NIC with xt-ide bios

Posted on 2021-05-30, 11:15

by

by jcarvalho

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Hi guys, in fact I only have an 27c128 with the xt-ide bios burned and placed in an NE2000 compatible card, no xt-ide board. So mkarcher is right. I was probing the B28 pin from ISA connector of the ET4000AX with the near vias/traces around and could not find continuity. Grabbing the oak card I …

---

Re: Weird problem TSENG LABS ET4000AX and NIC with xt-ide bios

Posted on 2021-05-29, 23:29

by

by jcarvalho

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

This could be an issue with ALE signal and DMA. An old mobo like this wouldn't normally use DMA for HDD but you are using XT-IDE as well. First, does the problem go away if you remove XT-IDE? Second, take a look at the back side of that Tseng, and your other VGA cards. I bet the Tseng has ALE …

---

Weird problem TSENG LABS ET4000AX and NIC with xt-ide bios

Posted on 2021-05-29, 22:15

by

by jcarvalho

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Hi guys, I have a strange problem and need your help. I have an ET4000AX with 14 pins VGA connector and I opened the "closed hole" with a small drill. I noticed that the hidden pin was connected to the mobo internally, so I disconnected the pin. tseng_D14.jpg tseng.jpg The strange thing is: When …

---

Re: Specs advice for my new retro-pc

Posted on 2021-04-29, 13:06

by

by jcarvalho

in Marvin \ System Specs

in Marvin \ System Specs

Hi for compatibility sake I would go with ess and pci s3 gfx

---