Re: PicoMEM : Pi Pico on ISA, with full Memory and I/O bus access
Posted on Yesterday, 20:08
Hi, I had to correct 2 little things on the PicoMEM 1.1 So here is the 1.11: Filename PicoMEM111.png File size 275.43 KiB Views 25 views
Re: PicoMEM : Pi Pico on ISA, with full Memory and I/O bus access
Posted on 2023-11-28, 22:48
The rom support sounds great. Writing and re-writing option roms for a quick test is a pain and those pins on those old chips don't get any more sturdy with each reinsertion. I have a KVM switch that only does PS/2 mouse support. Would "PiPico on ISA" work with a PS/2 to USB active adapter for a …
Re: PicoMEM : Pi Pico on ISA, with full Memory and I/O bus access
Posted on 2023-11-28, 12:36
Would a RP2040 be able to handle a 16 bit ISA bus? While I got an old XT that's been sitting around since 1990, I don't do a lot on it. 286's and 386's are much more interesting to me. hi, Some of the early PicoMEM useres told me that also on 386, it is really usefull. 16Bit will "Only" add more …
Re: PicoMEM : Pi Pico on ISA, with full Memory and I/O bus access
Posted on 2023-11-27, 09:40
I don't understand the obsession with the PI Pico for these projects. Often the projects are limited by the Pico's performance. It can just barely handle software defined ISA. There are way more powerful microcontrollers out there that are plentiful and an order of magnitude cheaper. Hi, I already …
Re: PicoMEM : Pi Pico on ISA, with full Memory and I/O bus access
Posted on 2023-11-23, 15:35
Thanks all. It currently does not work on tandy 1000 due to the memory structure. (Will do later) To many ppls ask me for boards, this will be for next year, when I think the board is ready for more important production.
Re: PicoMEM : Pi Pico on ISA, with full Memory and I/O bus access
Posted on 2023-11-15, 08:25
Hi, I finished the PicoMEM 1.1 Board, supposed to correct all the known HW Problems. - USB Power Fixed - uSD/PSRAM routing improved - Added one IRQ (IRQ5) - Correct a Startup problem with PC1512 and other - QWiiC connector added PicoMEM11.JPG I will produce 20 Boards as I am quite confident and to …
Re: PicoMEM : Pi Pico on ISA, with full Memory and I/O bus access
Posted on 2023-11-06, 19:29
At least, ne2000 emulation via Wifi will be a good plus. And why not modem emulation (COM4 Serial) Plus we can think about a web page to configure the board or interact with it, SFTP to copy image on the uSD via Wifi... Screen / RAM Capture and so on....
Re: PicoMEM : Pi Pico on ISA, with full Memory and I/O bus access
Posted on 2023-11-06, 14:11
@FreddyV it sounds like you already have a clever plan for "mounting" floppy images - I had never even considered direct-mount from the internet, that sounds very cool. You've got a lot working on it the plan - impressive. You make a fair point about video. I would buy a card for the other things …
Re: PicoMEM : Pi Pico on ISA, with full Memory and I/O bus access
Posted on 2023-11-03, 09:59
Hi, Not easy to answer to everybody :) So, Yes, ne2000 is working, it is done by Kevin. but I did not test it for the moment. Kevin was able to access a Netware Disk over internet at 500Kb/s on a 5170. So, same speed as the XTIDE... It then add virtually unlimitted disk space. He could even browse …
Re: PicoGUS: ISA sound card emulator with Raspberry Pi Pico (Gravis Ultrasound, AdLib, MPU-401, Tandy, CMS)
Posted on 2023-10-16, 11:56
It is so cool to see the community recognition of the PicoGUS project growing over time. It turns out, that the answer to the question I've been asking myself for the past 16+ months - " why, the heck, is everybody not ALL OVER this awesome thing??? " - is " just wait.... and they will come ". :) I …
Re: PicoMEM : Pi Pico on ISA, with full Memory and I/O bus access
Posted on 2023-10-11, 09:58
Some more comment about the question "Why Pi Pico" I did research based on the PiStorm, so I wanted first to try on Pi Zero 2, but these are just not possible to buy. I was also suprized that the PiStorm need an FPGA with High Speed Pi3/4 So, I hearded about the PiGUS, then the PicoGUS and I started …
Re: PicoMEM : Pi Pico on ISA, with full Memory and I/O bus access
Posted on 2023-10-11, 08:53
Nice project! When USB mouse/keyboard or network is also working I am surely interested in making/buying one. A CD-ROM emulator is certainly a killer feature but I guess a Pico would probably be under-powered for such a feature. Hi, NE2000 network is now working (With Pico W), but not fully …
Re: PicoMEM : Pi Pico on ISA, with full Memory and I/O bus access
Posted on 2023-09-30, 22:47
Really nice! I'm most interested in the EMS support upto 4mb. I have a lo-tech card in my NuXT which I use quite heavily. Ideally I'd love a 8-16mb EMS card so I could push it in a corner and forget about it.. yes I know EMS can go upto 32mb.. but I don't think I'd benefit from more than 8mb. Very …
Re: PicoMEM : Pi Pico on ISA, with full Memory and I/O bus access
Posted on 2023-09-30, 22:46
Ulfenknulfen wrote on 2023-09-30, 10:33: That's a super nice and helpful Project - Congrats! It would be really interesting for me if it would support USB mouse/keyboard […] Show full quote That's a super nice and helpful Project - Congrats! It would be really interesting for me if it would support …
Re: PicoMEM : Pi Pico on ISA, with full Memory and I/O bus access
Posted on 2023-09-30, 22:46
aoclaus wrote on 2023-09-27, 21:49: You mention BIOS. Would this card be able to replace or augment the motherboard BIOS? Hi, The Board has its own ROM, I calll it BIOS because it add some BIOS Functions, for ther Disk Emulation So we can call it BIOS extender as well.
Re: PicoMEM : Pi Pico on ISA, with full Memory and I/O bus access
Posted on 2023-09-23, 17:03
One Day or another the source of my project will be released, so other versions can arrive.
Re: CVX4 : high quality covox adapter
Posted on 2023-09-11, 14:40
Hi, The problem of the Stereo on one is that there is a need to write to a register to select the channel Right/Left Instead of just alternate the channel each time a data is sent for example. The 2nd problem is that the PC need to program a timer at the output frequency, this is extremely slow, …
Re: Mod Master XT 1.0 Released : Play .MOD, .XM and .VGM on a 8088 4MHz
Posted on 2023-08-29, 14:29
dr.zeissler wrote on 2023-07-07, 11:35: Yes, I works on my EuroPC with V20, design/optik is better on glx, but it's about sound not design. Thx! What have glx fast is a trick that reduce its sound quality, I never wanted to do this in Mod Master.
Re: USB ISA cards?
Posted on 2023-08-24, 07:13
16ShadesOfOrange wrote on 2023-07-19, 00:21: Big thanks to FreddyV, getting 10x the throughput with his driver! Anyone know where I can buy a bracket? I don't have a 3D printer and I can't even find an STL for it either! You are welcome 😀
Re: Mod Master XT 1.0 Released : Play .MOD, .XM and .VGM on a 8088 4MHz
Posted on 2023-07-07, 09:20
What version of ModMaster should be used on XT 9.54 with Nec V20. To my ears the 2.2 XT sounds pretty good on CT4170 in EuroPC. glx_cga produces strange crackeling noises while playing mod-files. this is gone using modmaster. so thank you for this nice software! Did you succeed to have it working ?
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