Re: MT32-Pi Wavetable Board
Posted on 2023-02-01, 00:34
Nice to see this form factor adaptation of the mt32-pi and MUNT function. Breaking out the display (and some controls, perhaps) to an accessible place could indeed be a useful extension.
Re: PicoGUS: Gravis Ultrasound emulator on an ISA card with Raspberry Pi Pico
Posted on 2023-01-31, 22:43
Ah I see, we need a nice way for the init to identify / enumerate the different cards. The talk about Hocus Pocus's PicoGUS success being possibly sensitive to system speed, made me think. I don't want to be unknowingly reproducing old issues due to system speed. Since I've never owned a real GUS …
Re: PicoGUS: Gravis Ultrasound emulator on an ISA card with Raspberry Pi Pico
Posted on 2023-01-30, 22:26
PicoGUS firmware v0.4.0 is now released: https://github.com/polpo/picogus/releases/tag/v0.4.0 This includes the GUS DMA fixes I mentioned in my last post : Refactored DMA transfer completion handler: this results in much higher compatibility with titles that use streaming DMA. Overriding the DMA …
Re: How much of your retro hardware do you actually use?
Posted on 2023-01-25, 22:18
Time We only have so much spare time in our lives, to divvy between different interests. For many of us, old PCs, while surely ranking high on the list, are not our only hobby or time-sink. And even one good system offers endless potential hours of exploration. So the reality for most of us is that, …
Re: Most disappointing games?
Posted on 2023-01-25, 12:18
On a Hype vs Reality basis, Rise of the Robots was quite high on the disappointment list.
Re: PicoGUS: Gravis Ultrasound emulator on an ISA card with Raspberry Pi Pico
Posted on 2023-01-25, 04:43
Fleshing out my game testing of the 0.3.0 firmware with a wider range of games. General findings support the current conclusions. As there isn't much new information to contribute (re: games on this firmware), I won't test further games for it at present, but perhaps the specifics of the ones tested …
Re: PicoGUS: Gravis Ultrasound emulator on an ISA card with Raspberry Pi Pico
Posted on 2023-01-24, 22:37
I don't know how relevant this comparison (slash, vague observation) is. But the MiSTer FPGA project came to the realisation early on that their mainboard's DDR3 did not have the timing/latency and other speciality characteristics needed for their retro simulation work. Accordingly, the MiSTer now …
Re: PicoGUS: Gravis Ultrasound emulator on an ISA card with Raspberry Pi Pico
Posted on 2023-01-24, 09:23
Another separate note I wanted to highlight, for people who don't already have/familiar with GUS. The Gravis software package v4.11 (mentioned in the Github build guide) can be installed via it's included INSTALL.EXE, but only by selecting it's second menu option, "Restore files" (or similar). Then …
Re: PicoGUS: Gravis Ultrasound emulator on an ISA card with Raspberry Pi Pico
Posted on 2023-01-24, 08:06
Back at home, I had an hour today to begin some testing. I've only covered the basic ground so far, to confirm that I'm getting what everyone else is getting, but more should follow in the coming days. PicoGUS version: 0.3.0 System: Pentium-MMX 233Mhz system with MSDOS 7.1 (i.e. the Win98SE version …
Re: GET OFF MY LAWN (the YouTube channel)
Posted on 2023-01-23, 23:01
In quick summary, what are the modern options for playing Rebel Moon Rising? I am inferring that it can't be played (with all graphical bells and whistles) on old hardware, unless you have a Creative 3d Blaster card - is that correct? This is only correct for the first game that was shown in the …
Re: GET OFF MY LAWN (the YouTube channel)
Posted on 2023-01-23, 22:36
In quick summary, what are the modern options for playing Rebel Moon Rising? I am inferring that it can't be played (with all graphical bells and whistles) on old hardware, unless you have a Creative 3d Blaster card - is that correct?
Re: PicoGUS: Gravis Ultrasound emulator on an ISA card with Raspberry Pi Pico
Posted on 2023-01-23, 12:51
My thoughts for what they're worth. I think there is still a great deal of value in the current style card, because a one-card hardware solution for less than $50 which can emulate a GUS one minute, an intelligent MPU-401 the next, an Adlib / (a SoundBlaster?) / (a GM synth?) / (???) the next, very …
Re: PicoGUS: Gravis Ultrasound emulator on an ISA card with Raspberry Pi Pico
Posted on 2023-01-22, 07:37
PicoGUS firmware v0.3.0 is now released! Download it at: https://github.com/polpo/picogus/releases/tag/v0.3.0 This is a big one! General: Firmware can now be programmed from DOS (requires FW v0.3.0 or above - upgrading from previous versions must be done by USB) Emulation mode can be changed "on …
Re: What game are you playing now?
Posted on 2023-01-21, 23:43
The above level is subtitled "Which idiot designed this security system?!!". 🤣 Whose specs include the impressive Guaranteed to stop 100% of perfectly square people who take up the entire hallway. (but seriously, it looks pretty darn cool)
Re: PicoGUS: Gravis Ultrasound emulator on an ISA card with Raspberry Pi Pico
Posted on 2023-01-21, 02:29
Awesome news! I’m glad you were able to fix it without having to build a second card. I’ll be getting the next firmware version out in the next couple days so there will be even more things that work! That will be excellent, looking forward to trying it out. A quick question, and sorry if it's a …
Re: PicoGUS: Gravis Ultrasound emulator on an ISA card with Raspberry Pi Pico
Posted on 2023-01-20, 01:16
GUS-like card detected. :) Many thanks for the pointers @MJay99 and @polpo ! I hit the card with a fresh set of eyes today, did the mentioned continuity tests, and refluxed and reflowed a few suspicious areas on the TSSOPs. It seems to have made the difference. Time and further usage will tell if …
Re: What game are you playing now?
Posted on 2023-01-19, 21:54
I used to love videogame cut-scenes when I was much younger, in the early 90s, e.g. Tie Fighter and Dune II style. That was in the days when you had to bicycle to a video rental store and pay $2 if you wanted a choice of video productions to watch. These days, access to endless high-value video …
Re: PicoGUS: Gravis Ultrasound emulator on an ISA card with Raspberry Pi Pico
Posted on 2023-01-19, 05:42
Uh oh... one quick question, I assume you're using one of the GUS firmwares? I think so. I haven't used a Pico before, but I followed your flashing instructions, and things seemed to go how I expected during the process. However, I need to have another look in detail. edit: I had another look, and …
Re: PicoGUS: Gravis Ultrasound emulator on an ISA card with Raspberry Pi Pico
Posted on 2023-01-19, 03:31
By the way.. IMG_20230119_001508_1600x1200.jpg It is not as neat as what @Shreddoc made, but in my defense it was my first SMT soldering attempt and I caused no bridges. Well it proves the rule that "what looks good, might not BE good" ... because my first attempt got the dreaded no PicoGUS …
Re: PicoGUS: Gravis Ultrasound emulator on an ISA card with Raspberry Pi Pico
Posted on 2023-01-17, 10:23
So, yeah.. PicoGUS SOIC TSSOP.jpg @polpo I also asked this on twitter but, CSV BOM has SN74CB3T3245PW for U2 (which I soldered) whereas your interactive BOM and your card photo has 74LVC244 instead.. Did I do wrong? I also noticed the slight confusion while building. Ultimately I found this message …
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