The SuperStation One - Is this the One FPGA System to Rule them All?

Over in China there is an expatriate who goes by the handle of Taki Udon. This American began his public video gaming presence modding Game Boy, Game Boy Color and Game Boy Advance systems. Over time he partnered with a local company, Retro Remake, to produce modding products and affordable add-ons for the MiSTer FPGA system. Now he has released a consolized MiSTer called the SuperStation One. Specifically the console his company has modeled is the Sony PS One, the slimmed down revision of the PlayStation released late in its lifecycle. The SSOne has the potential to act as a fully consolized FPGA PlayStation. Having finally received mine, I will review it here.

Adapting Apple's RGB Color Monitor for Analogue & MiSTer

While the Apple IIgs could connect to a composite display, Apple released a high-quality color RGB monitor specifically designed for the IIgs. This monitor was called the Apple Color RGB Monitor, A2M6014. It was the only color monitor Apple ever released which could accept full analog RGB video signals at the standard 240p/480i resolution (using a 15.7KHz horizontal line frequency). I have recently acquired a full Apple IIgs setup, and while the IIgs needs some repair to its mainboard the monitor works. Even though this monitor has a connector only used by Apple, with a converter it is possible to use it with a variety of game consoles. In this short blog article I will detail how I got it working with my Analogue consoles and MiSTer.

The Ultimate Commodore 64? - The Commodore 64 Ultimate Review

The original Commodore 64 had a pretty long run for a computing platform, released in 1982 and discontinued in 1994. Its fortunes mirrored that of the company which developed it as Commodore achieved its greatest success with the C64 and never quite managed to achieve a similar level of market dominance thereafter. Now there is a new Commodore 64, the Commodore C64 Ultimate, which promises to be an end-all, be-all solution to running C64 software on a platform worthy of the Commodore legacy. Today, having had a chance to play with one for about a week, I can put those claims to the test.

The New ModRetro Chromatic & Accessories

Last year the company known as ModRetro released an FPGA-based Game Boy and Game Boy Color handheld console. Those consoles were advertised as limited editions and sold out on the ModRetro website. I bought and reviewed one and had an overall favorable opinion of the device. Now eight months have passed and ModRetro is releasing not only a new batch of consoles but also accessories for all Chromatic consoles. I ordered a new console and the new accessories to put them to the test. What has changed? Are there improvements?

The New Chromatic

Let me start with what has not changed. When you order a console the items you get in the box will be the same: the console, 3xAA ModRetro-branded batteries and the Tetris cartridge (which I reviewed separately). That is about it in terms of what is unchanged. Even the box for the new units is slightly redesigned. The old box showed off games that were available for sale on the ModRetro site, but the new box shows screens for a game called "Mega - The Viper Wars" that either does not exist or has not been released.

When the console was originally released last year its price was $199.00 regardless of color or markings. Six standard color variations were offered on the site and with either English or Japanese markings. There was a GameStop variant for sale on GameStop's site and a "Logan Paul" edition sold on the ModRetro site. Both variants were priced at $199.00 but only had an English marking option. All these consoles have a "1st EDITION" marking on them.

The new edition of the Chromatic console is offered for a base price of $199.99 and in all the standard colors (Midnight, Wave, Leaf, Inferno, Volt, Bubblegum) plus a new Cloud color (very SNES-like color scheme). Only English console label markings are available for this edition. These are only available from the ModRetro site. These new Chromatics no longer have a "1st EDITION" marking and only have two color stripes on the bottom left-hand corner of the console instead of three. The middle stripe is gone and the end stripes no longer straddle the edge of the console. This should reduce wear as these colors are printed over the magnesium alloy shell.

The new edition of the Chromatic comes with a Gorilla Glass screen in the base model. An upgrade to a Sapphire Glass screen is available for an extra $100.00. All 1st Edition Chromatics, including the GameStop exclusive, came with Sapphire Glass screens. The Sapphire Glass screens have a small "SAPPHIRE" marking below the bottom of the active display. The GameStop variant is still available for purchase at the original $199.00 price, so if you want a Sapphire Glass screen and do not want to pay the premium, you can still buy that variant at the time of writing.

The main advertised difference between the Gorilla Glass and Sapphire Glass screens is the hardness of the screen. Gorilla Glass comes between 6-8 on the Mohs scale, Sapphire Glass between 7-8. The Mohs scale measures scratch resistance but Gorilla Glass is officially rated with a Vickers Pyramid number, which measures the impact on the screen. Most generations of Gorilla Glass measure between 550-650HV. In short, Sapphire Glass is harder and heavier than Gorilla Glass and offers superior scratch resistance but Gorilla Glass is cheaper and is less prone to shattering on impact.

Comparing both displays, both are equal to my eye in terms of clarity. Gorilla offers slightly superior brightness than Sapphire at the same brightness levels but there is more backlight bleed from Gorilla. Gorilla is less reflective, which may be important if you are in a setting with a lot of ambient or bright light. If in sunlight, find some shade and you should have a nearly equivalent experience with either screen.

The internals bear a comment or two, but there are some improvements. There is one less screw needed to unscrew in order to get the mainboard out of the case. The D-pad trace near the pivot has been moved enough that the pivot cannot wear against it and break the trace. My new Chromatic's mainboard has a microSD card slot soldered onto the board whereas the old Chromatic's only had pads.

There are other minor changes from the old consoles to the new ones. The black RF shield in the back is thicker. The gaps between the power switch and IR window and the shell are tighter. You are also less likely to get a scuffed IR window due to a softer liner used in the new Chromatic's box. The battery cover no longer has the rubber pads on the sides to help hold in the batteries. The metal tabs on the battery cover are in different places and thicker. The bottom of the new enclosure has a plastic piece screwed in to help latch the battery cover. There is a slight ridge or lip behind the volume wheel on the new Chromatic's bottom shell. 

The speaker on the new Chromatic can reach a significantly higher volume than the old Chromatic. However, there is still a lot of noise when both the audio jack and the USB port is connected to the same PC. This makes streaming video and audio less than ideal because the console cannot transmit audio over USB.  As of Firmware v4.0 audio can be streamed alongside video over USB, making the audio quality no longer an issue.

There are slight improvements to the build quality. There is no roughness around the power LED. There were no scuffs on the plastic bits like the IR window or the Tetris cartridge that came with my console. The EverDrive GB X7 worked fine with the new Chromatic.

Accessories

In addition to the new consoles, ModRetro is offering three new accessories, all in their own boxes or packaging with the same colorful, cutesy style as the console's box.

The long-awaited "Rechargeable Power Core" (the battery pack announced alongside the original Chromatic) is finally available for $29.99. The battery pack was mentioned with the initial announcements of the Chromatic but has been MIA until now. This pack fits into the battery compartment of any Chromatic, no tools required, and can be charged by the USB Type-C connector. There are contacts in the battery cavity to make contact with the battery pack and the battery can be easily removed for instances when the console will not see use. This limits unnecessary drain from the battery pack.

The Chromatic can use standard Alkaline, Lithium or rechargeable AA batteries (three required) but cannot charge the latter. ModRetro claims 16 hours of gameplay on a full charge and recharging takes 2-5 hours. These numbers are dependent on the game being played and the power source connected to the Chromatic, respectively. The battery has a 2250mAh capacity and adds about 1.5 oz to the weight (no more than AA batteries) of the Chromatic. It comes with a braided USB Type-C to USB Type-C charging cable, 3.25 feet long.

The second new accessory is a link cable, sold for $14.99. I believe ModRetro made their own so they would not have to listen to customer complaining of flaky vintage cables or poor quality modern cables or have to recommend Analogue's link cable. The Analogue link cable is high quality but it is a competitor's product. Unlike the Analogue link cable the Chromatic link cable does not have a switch for GBA compatibility. GBA link cables are wired differently from GB/GBC cables and require a switch to support GBA and GB/GBC consoles. The Chromatic Link cable is advertised at 6.5 feet, which is slightly longer than Analogue's 4.75 feet. It is also a braided cable as opposed to the plastic sheathed cables from everyone else. Analogue's cable also supports GBA multiplayer and the original Nintendo GBA link cables were shorter than the 8-bit link cables.

The ModRetro site says that its link cable is not compatible with the original Game Boy but that is not the whole story. The Game Boy DMG connector is only physically different from the link cable connector on the later 8-bit Game Boys. The same cables are used for the Game Boy Pocket, Super Game Boy 2 and Game Boy Color. The Game Boy Advance, Game Boy Advance SP, Game Boy Player and Analogue Pocket are compatible with these cables when playing Game Boy or Game Boy Color games. Nintendo made an adapter, DMG-14, that can convert the smaller GBP/GBC plug into the larger DMG plug. I was able to play a multiplayer game of F-1 Race between the Chromatic, the ModRetro link cable and a DMG-14 in an original Game Boy. I had no trouble using the ModRetro link cable, even with the Game Boy Printer. The link cables are compatible with non-Chromatics.

The final new accessory is the Mod Kit, also $14.99. This includes 9 pairs of A & B buttons, 2 D-Pads, 2 D-Pad Membranes, 4 button membranes, a Start and a Select button, an IR Window, a Power Switch and a Menu button. There is also included some stickers, a double ended bit driver with a 3.8mm security screw bit and a tri-wing bit and an end cap for the bit driver. These parts can be used to customize the look and feel of the cartridge or to fix broken parts. One set of membranes have a softer action press than the other. One of the D-Pads has a short pivot post and the other has a longer pivot post. Once you start breaking open the cardboard covering the back of the blister pack, you will need to find a new way to store these parts.

Button colors are subjective but the big improvement here is the longer D-Pad stem. This eliminated the issue of being able to press opposite directions, which can break some games. The black membranes are supposed to be softer than the gray ones, but I have not noticed much of a difference in the short time I have used them. The included screwdriver is magnetized.

The Koss Porta Pro headphones are still available but only in the standard six color variations. Speaking of Chromatic, there is no red or violet/purple console available or green, blue or yellow buttons in the ModKit. (A red Chromatic was shown during the Classic Tetris World Championship event last year.) I think ModRetro might come up a little short in its spectrum-encompassing branding.

The Chromatic's box states "Designed in California, Assembled in Mexico." The packaging for the Chromatic accessories says "Designed in California, Made in China." It is likely that the "assembly" on the console's box means the assembly line functions of putting the console together (placing the buttons and membranes, screwing in the PCB and shell) and putting it in its box, not soldering electronic components to the PCB. It is more likely that board soldering is done in China but Mexico is not impossible.

Firmware Update v3.2

The new Chromatic and the Battery Pack tell you to update your firmware and give you stickers with QR codes to do this. There last firmware for the Chromatic was released on May 21 (v3.2), so you do not need to rush out to update your old Chromatic if you have updated it since then. My new Chromatic was on the latest firmware out of the box but that may not always be the case going forward. Make sure to update your Tetris cartridge, just in case. ModRetro keeps a changelog documenting updates for any games it sells.

The v3.2 firmware update brought many fixes to the platform but the webcam-identified video based output now no longer uses the RGB color space but the YUV color space with 4:2:2 chroma subsampling. This results in blurrier color but makes the "webcam" compatible with macOS and Discord, as a ModRetro representative explained. Black and white and grayscale are unaffected and still perfectly sharp. The captures I made of the system with launch day firmware are as sharp as a tack. ModRetro is looking at workarounds to the problem but the firmware upgrade tool does not allow for downgrading firmware. The v4.0 firmware is unchanged in this regard. See the link above for details on how to downgrade the firmware (it is not easy).

There is a change to the Chromatic's custom color palettes for monochrome games. The Right + A + B palette is unchanged from prior firmware but the Left + A + B now evokes a Game Boy Light. Another newer option in the menu allows for smooth transitions. This is useful in a game like The Legend of Zelda: Link's Awakening where there is a lot of flicker when Link goes in and out of houses, caves and labyrinths. 

 Conclusion

The new Chromatic offers some quality of life improvements over the old Chromatic. The screens are not so different that you may feel left with second best if you do not fork over the extra $100 for the Sapphire screen. The accessories improve on the console experience. At this point the console's only major flaw is one of its main advertising points, the USB video capture. At present the capture is fuzzier than it needs to be on the horizontal axis with color video and could be fixed. and audio quality is bad if it is connected to a line input to the same PC that is capturing video. Connecting just the line in to the PC without the USB connection allows for high quality audio capture, for what it is worth. This can be fixed in software by permitting USB video and audio capture together as a proper capture device, but this has to be implemented by Gowin, the maker of the FPGA, in its development kit. If this is done the Chromatic would be far better for streaming and capturing GB and GBC gameplay than it currently is.

I bought my new Chromatic and one of each of the accessories on July 10 and received my console on July 31. As a prior Chromatic owner I received a 15% off coupon, before it my order was $259.96, after application it was $230.95 (including $9.99 shipping).

In terms of FPGA handheld placement, the new Chromatic is still well-behind the Analogue Pocket in terms of features and value for money. If I did not have a Pocket I would much rather use the Chromatic over the FunnyPlaying FPGBC. The Chromatic's screen is incredible, bright, sharp, 1:1 pixel resolution (no scaling) and no lag. The simulation quality is excellent and the cartridge slot is deep enough to keep your original cartridges firmly in place. If you want a modern way to play your Game Boy and Game Boy Color cartridges on the go, the Chromatic is the best option after the Analogue Pocket in my opinion.

The ModRetro Chromatic Review - A High End Alternative GBC FPGA Handheld Solution?

The Game Boy and Game Boy Color systems have had a very active "afterlife." Screen mods, homebrew games and clone consoles are just some of the developments that have gained prominence in the past 10+ years. The idea of cloning a Game Boy or Game Boy Color is not a new one, hardware clones have been around for at least 10 years. More flexible FPGA technology has resulting in two consoles which can play original GB/GBC cartridges, the Analogue Pocket (2021) and the Funny Playing FPGBC (2023). Now a new challenger enters the arena in the form of the Chromatic from a company called ModRetro. Let's see what it has to offer and how it measures up against the competition.

FPGBC - The Budget FPGA Handheld

Portable or handheld devices which play retro video games are very common these days. Companies like Anbernic and Powkiddy make multiple consoles which can emulate some very advanced video game consoles. The Steam Deck and the Nintendo Switch can also emulate or run retro video games. These things are a dime a dozen these days and come in all shapes and sizes, but they all rely on software emulation. Until recently there has been one FPGA handheld console, the Analogue Pocket. In the past several months, a new challenger has entered the arena, the FPGBC from FunnyPlaying. In this article I will give my impressions of the device and review it on its own merits compared to the console it is trying to simulate, the Game Boy Color.

Lag : Consoles, Emulators, FPGAs

When playing classic video games on non-original hardware, one should always be conscious for the amount of extra lag that method may offer over the original hardware.  Along with accuracy, latency is one of the most important tangible benefits (versus of using original hardware and display technology (CRTs) over emulators and current display technology (LCDs).  Latency has always existed in some form, and in this article I will give an overview on how latency has evolved over time.  

Additionally, the use of FPGA chips to simulate original hardware has become increasingly popular over the past five years.  FPGAs can offer the benefit of lower latency compared to traditional software based emulation and can offer a high degree of accuracy by using relatively inexpensive hardware.  FPGAs are not without their singular issues, and in this article I will go over some of the issues with using FPGAs as a replacement for original hardware.

RetroUSB AVS : The Affordable NES FPGA Console

RetroUSB AVS, courtesy of RetroUSB.com

The NES is undoubtedly the most cloned video game system ever, and in the 2010s FPGA technology had decreased in price to the point where it was affordable to implement retro video game systems on an FPGA.  The RetroUSB AVS was the first NES FPGA console made available to the public, and while I have discussed it before on this blog, I have not done a full review of the AVS because I never had one in my possession before.  That changed recently thanks to a friend of mine who let me borrow his for testing and review.  As this console is almost five years old at this point and is the only NES FPGA console you can currently pre-order, I think it is time to see where it has progressed and how well it has held up over the years compared to more recent competition.

FPGA NES and Famicom Solutions' Mapper Support Matrices

There have been several hardware devices released over the past four decades which play NES and Famicom games.  Any regular reader of this blog will know that the NES and Famicom have many, many different ways in which it supports memory management.  Hardware devices which support a wide variety of games use FPGAs to configure their logic to handle the various memory mappers used by NES and Famicom games.  Below I will give matrices of each device and identify the mappers it supports.  Both iNES 1.0 and NES 2.0 mappers will be identified.  None of these devices support UNIF format mappers and UNIF should be fully deprecated by NES 2.0 now.

Fixing NES Headers and Converting them to NES 2.0 : Putting Theory into Practice!

In my last blog entry, I announced the creation of an evolving database of NES ROM headers, focused on cartridge accuracy.  However, while I can make a spreadsheet for easy accessibility, spreadsheets are not the best way to organize data for use by other programs.  I cannot expect someone wanting a full set of proper NES 2.0 ROMs to manually edit the headers of over 2,900 separate files!

There has to be an easier way, right?
The task of manual fixing isn't slight.
Well, if you read further now,
I'll be happy to tell you how.

The NES and Famicom Accurate Cartridge Information Database

NES and Famicom emulation has been around for over twenty-five years.  In that time, the internal hardware has become very well documented.  NES and Famicom cartridges, on the other hand, have had a parallel journey of discovery during this time, but emulators and flash carts and FPGA devices have not always been up to date with current developments.  The core games which people enjoy with NES emulation, namely those licensed and approved by Nintendo and unlicensed games released during the NES' lifespan, sometimes suffer in emulation due not to bad dumps but a wrong information in their file header.  The header indicates what kind of hardware the game uses, but if the information in the header is wrong, out of date or missing, the game will not play or play correctly.  In this blog article I will explain how headers work, why they are necessary, the need for accurate information in them and how they have evolved over time.  Then I will describe and link to my database which contains the most accurate and up to date information for the NES and Famicom ROMs most people care about.

MiSTer - The MAME of FPGA Simulation Projects

MiSTer Fully Assembled (courtesy of MiSTer Github Wiki)

Why bother pricey FPGA simulation when there are so many excellent software emulators lying around?  The answer can be boiled down into one word : lag.  Lag is the most intractable problem with emulation and the most insidious.  Everything else, accuracy, ease of use, authenticity, a software emulator can accomplish.  But doing all that without added latency is a huge challenge and one which oftentimes cannot be met without some very expensive hardware.

An FPGA console is a modestly priced solution to lag.  FPGAs simulate original hardware at the logic level and can simulate multiple processes in parallel.  A software emulator must recreate a system alien to the hardware on which it is running and is essentially limited to processing multiple hardware events serially.  The most popular FPGA solution not made by Analogue is based on the DE-10 Nano FPGA development board.  This board is the key to the MiSTer project, a group of cores which simulate various video game consoles, computer systems and certain arcade machines under a common framework.  In this blog entry (or entries), I will dive into the world of MiSTer and discuss the aspects I like and dislike.

The CollectorVision Phoenix Part 2 - The FPGA System Built by Thieves and Sold on Disinformation

Three blog posts ago, I was rather critical of the CollectorVision Phoenix, an FPGA console which implements the ColecoVision : https://nerdlypleasures.blogspot.com/2018/10/the-collectorvision-phoenix-fpga.html  I said all that I believed needed to be said, but since then I have determined that the console was deserving of further criticism.

Before we go into the specifics of my claims, let's review the basic hardware specifications of the ColecoVision and similar systems which are based off the TMS9928A Video Display Processor (VDP).

The Analogue Mega Sg – A Preview of the Next Chapter in the FPGA "Console Wars"

Analogue Mega Sg JPN Version

Today, Analogue has made an announcement of its next FPGA retro console. This was a reveal which had been long expected. When the console was revealed as an implementation of the Sega Genesis/Mega Drive, it came as no great surprise to observers like myself familiar with Analogue’s history. Let’s explore some of that history, the specifications of the unit, what you will get for the $189.99 retail price and how this console may fare in today’s increasingly-crowded retro-console market.

The CollectorVision Phoenix - An FPGA Console Behind the Times?

The ColecoVision has a very driven fan community.  I did not own one and really do not share the love that those who do or did have, but nonetheless it is a classic gaming system that has new products and peripherals released for it.  The idea of recreating the Coleco in a modern, updated console, has long been talked about.  Currently, no less than three different groups have announced some kind of FPGA-based Coleco.  One of those project, called the CollectorVision Phoenix, is now accepting funding on kickstarter.  Let's look into the Phoenix's campaign and features and I will explain why I think you should give this FPGA console a pass.

Super Nt Review - The Ideal FPGA Console?

In the four months since the announcement of the Super Nt, there has been a lot of anticipation over the final product.  Will it ship on time?  Will it be as good as the Nt Mini?  Is it worth the money?  Can I put my original hardware away?  Now that I have had mine for about four days by the time this blog entry posts, I can try to answer those questions and give my own impressions of the system.

Analogue Nt Mini : Audio Tweaking

The Nt Mini's audio has come under some criticism from such luminaries as the My Life in Gaming channel.  Kevtris has fixed NES audio issues in Jailbreak firmwares v1.0 (MMC5 pulse pitch), v1.3 (audio sweep bug), and v1.8 (crackling static issue).  The excellent MLiG video was using v1.2, so its statements may not hold true for the latest official or jailbroken firmware.  Even so, it is hard to diagnose and fix a problem without being able to define the problem or demonstrate it in a way that would illustrate the problem to the less-technical viewer.  The MLiG video said little more than "We feel that sound might be somewhat further removed from the original hardware experience than any other aspect of the system."  

That MLiG comment is so vague as to suggest that the Nt Mini could be outputting reversed-duty cycle pulse waves like a Famiclone or too low pitched noise as with the NES Classic Edition, which it clearly does not.  Nonetheless, a more articulate critic of kevtris' APU implementation in the Nt Mini and Hi-Def NES Mod is that in certain musical tracks, the triangle and noise channels are too quiet compared to the two pulse channels.  In order to talk about this claim, first we must discuss the mixing levels of NES APU channels.

Analogue Nt Mini : Browsing the Core Store Pt 2, AV and Future Predictions

In what is likely to be the penultimate article in my Analogue Nt Mini series for some time I intend to devote some time to a few of the more interesting cores remaining in the system, then discuss the video output from the NES.  Finally, I will offer my predictions for the future.

Analogue Nt Mini - Vs. System Support

Originally I was going to post a conclusion to my Analogue Nt series, but then I had an epiphany that was too long to attach to one of the prior posts.  Yesterday I was thinking about the Nintendo Vs. System and lack of comprehensive hacks available for the games that were released for that system.  I wondered if it was possible, given the Nt Mini's extraordinary capabilities, to get the pure Vs. System ROMs running on the system through its Flashcart functionality.  About six hours of testing later, I think can present a solution that can get many of these games working now.

Analogue Nt Mini - Browsing the Core Store

In part one of my Analogue Nt Mini series, I focused on the impressions I had of the hardware and the menu from the "official" standpoint.  In the second part, I focused on the most notable feature of the Nt Mini's jailbreak firmware, the NES Flash Cart capability.  In this part, I will discuss the other area in which the Nt Mini's jailbreak firmware is very impressive, Cores recreating other video game consoles.  The Nt Mini can recreate the hardware of many classic (and not so classic) 8-bit consoles like the Atari 2600, Sega Master System and the Game Boy by loading a Core into the FPGA.  Let's talk about what happens when you want to run games with one of these cores.