Re: PicoMEM : Pi Pico on ISA, with full Memory and I/O bus access

Posted on 2025-02-18, 15:21

by

by FreddyV

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

https://www.vogons.org/viewtopic.php?p=1330717#p1330717 Think there is anyway to make this project work on 386 or 486 bus for more system ram or cache? little unsure how fast the picomem xfer rate is? is it on the order of these older cache busses? or is it too slow? Hi, Use PicoMEM to extend RAM …

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Re: PicoMEM : Pi Pico on ISA, with full Memory and I/O bus access

Posted on 2025-02-18, 15:20

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by FreddyV

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

FreddyV, PicoMEM is awesome. I got mine through TexElec a few weeks ago. It works very well in my IBM PS/2 Model 30. I primarily use it for A:, B:, and C: drives. I've used it mixed with physical Floppy drives as well. A: physical, B: PicoMEM and A: PicoMEM, B: physical. Super happy with this. …

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Re: PicoMEM : Pi Pico on ISA, with full Memory and I/O bus access

Posted on 2025-01-14, 15:49

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by FreddyV

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Hi, Just saw that someone published the news on the latest Firmware. I also published a new PM2000 Driver. (Wifi network packet driver) It can now work for machines with a CPU > 80186 The problem was the "fix" I found here (Vogons) for 8bit card. This fix was working for 8086/8088, but not for …

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Re: PicoMEM : Pi Pico on ISA, with full Memory and I/O bus access

Posted on 2025-01-14, 15:46

by

by FreddyV

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I am curious, there are some PCs, like Packard Bell 486s, that use varta batteries soldered to the board, and if the batteries are dead it will not let you boot from either a floppy or HDD until the battery is replaced. Assuming the board has a dead battery but is still functional enough to post to …

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

Posted on 2024-12-02, 14:35

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by FreddyV

in Marvin \ Sound

in Marvin \ Sound

Is there a way to have a USB mouse and MPU-401 mode with full intelligent mode at the same time? Hi, There is a list of games needing the Interrupt in the MPU4101 mode : https://github.com/bjt42/softmpu/wiki/Compatible-Intelligent-Mode-Games This can't be used with mouse, as the mouse also need the …

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

Posted on 2024-11-11, 09:57

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by FreddyV

in Marvin \ Sound

in Marvin \ Sound

Memory emulation limitations : Memory emulation with PSRAM is quite slow for the moment, but multiple mechanism like a 32bit cache will improve this. (And Maybe DMA) The emulated Memory does not support DMA, Add support for it may be done in one or two months (May/June 2024) Anyway: As the real …

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

Posted on 2024-11-11, 09:55

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by FreddyV

in Marvin \ Sound

in Marvin \ Sound

Kekkula wrote on 2024-11-10, 14:10: Would it be possible to implement some picomem functionality to picogus? I'm thinking expanding memory from machines that only have 512k conventional memory like my europc1... 640k should be enough 😉 Hi, The PicoMEM can do Audio, I will add sound blaster as well. …

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Re: Sonic Buster 8: A highly SB2.0-compatible 8-bit ISA sound card with OPL3

Posted on 2024-10-16, 20:59

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by FreddyV

in Marvin \ Sound

in Marvin \ Sound

Hi, I have mine 😉 Thanks. Filename 20241016_184956.jpg File size 1.56 MiB Views 856 views File license Public domain

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Re: PicoMEM : Adlib and CMS/Tandy on its way

Posted on 2024-10-09, 08:46

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by FreddyV

in Marvin \ Sound

in Marvin \ Sound

Hi, New picoMEM firmware released : https://github.com/FreddyVRetro/ISA-PicoMEM/tree/main/firmware New: Added support for Tandy 1000 (Early ones with Tandy graphic) New: CMS/SAA1099 Sound card Added New: Tandy Sound card Added New: Adlib/Tandy and CMS are working at the same time and can be …

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Re: PicoMEM : Pi Pico on ISA, with full Memory and I/O bus access

Posted on 2024-10-09, 08:44

by

by FreddyV

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

So I was thinking about a machine I used to love working with, The Amstrad PPC1640. Sadly it lacked any real upgradability because, well, Amstrad didnt seem to think it needed any and those that were made are either vanishingly rare, dead ended or stop it being portable. While looking today I …

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Re: PicoMEM : Pi Pico on ISA, with full Memory and I/O bus access

Posted on 2024-10-09, 08:43

by

by FreddyV

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Hi, New PicoMEM firmware released. The more important is the Tandy 1000 Support ;) https://github.com/FreddyVRetro/ISA-PicoMEM/tree/main/firmware PM_W_Oct5: Tandy 1000, CMS and Tandy Audio​ New: Added support for Tandy 1000 (Early ones with Tandy graphic) New: CMS/SAA1099 Sound card Added New: Tandy …

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Re: PicoMEM : Adlib and CMS/Tandy on its way

Posted on 2024-10-03, 16:24

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by FreddyV

in Marvin \ Sound

in Marvin \ Sound

Well I'm just the opposite :D Getting a ready made card would be like getting a already made jigsaw puzzle. Best part for me is the building process, i've built couple picoguses, xtide cards and necroware mouse adapters. Hardware wise your of course free to do what you will... But software might be …

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Re: PicoMEM : Adlib and CMS/Tandy on its way

Posted on 2024-10-03, 16:16

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by FreddyV

in Marvin \ Sound

in Marvin \ Sound

Hi, I can understand, will see if Texelec can be Ok to sell just PCB

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Re: PicoMEM : Adlib and CMS/Tandy on its way

Posted on 2024-10-03, 14:37

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by FreddyV

in Marvin \ Sound

in Marvin \ Sound

Hi, I took the decision to not open source the hardware to limit the support time. (Ian is contacted for HW problem for self made picogus) Also, of course, to limit the possibility to have chinese / east europe ppls putting picoMEM everywhere on ebay and I will also have to do the support. Texelec …

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PicoMEM : Adlib and CMS/Tandy on its way

Posted on 2024-10-03, 13:29

by

by FreddyV

in Marvin \ Sound

in Marvin \ Sound

Hi, I finally post here as my PicoMEM audience is really small on the old hardware section here :) I am (I hope) still well known for the Mod Master XT project here. As you may know, I did the PicoMEM that is like a PicoGUS with ISA Memory interface. Then, it can emulate ROM, RAM as well as I/O …

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Re: Mod Master XT 1.0 Released : Play .MOD, .XM and .VGM on a 8088 4MHz

Posted on 2024-10-01, 06:30

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by FreddyV

in Marvin \ Sound

in Marvin \ Sound

Hi, This was removed because it took CPU time, Mod Master XT Objective was to be fast 😀

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Re: Covox Sound Master Reverse Engineering / Replica

Posted on 2024-09-30, 19:15

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by FreddyV

in Marvin \ Sound

in Marvin \ Sound

Hi, Emulate this board on PicoMEM/PicoGUS may be fun to add 😀

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Re: Mod Master XT 1.0 Released : Play .MOD, .XM and .VGM on a 8088 4MHz

Posted on 2024-09-30, 18:39

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by FreddyV

in Marvin \ Sound

in Marvin \ Sound

Mod Master 1.02 almost complete. - Tandy base port corrected - VGM display with Tandy/CMS corrected.

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

Posted on 2024-09-30, 09:31

by

by FreddyV

in Marvin \ Sound

in Marvin \ Sound

Why not a Beer ? "Polpo is thirsty"

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Re: Mod Master XT 1.0 Released : Play .MOD, .XM and .VGM on a 8088 4MHz

Posted on 2024-09-23, 19:47

by

by FreddyV

in Marvin \ Sound

in Marvin \ Sound

I really like the software :) the floppy issue seems to also happen on CF card. Tested two PC's, and browsing directories and files shows garbage, or does not show some folder at all. I have absolutely no file system issues outside of Mod Master so looks like there's something it really doesn't …

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