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How to fix your cartridge with Pseudo Saturn Kai

Written by cafealpha 2 comments
Sorry for the clickbait title, but I'm sorry to say that it's not possible to fix your Action Replay (or any similar clone) with Pseudo Saturn Kai

Below are common myths wrongly related with Pseudo Saturn Kai : theses are detailed in this blog article in the hope it will help users with similar problems, and also to -hopefully- relieve my emails inbox regarding theses inquiries ...


Q1 : Expansion RAM no longer works ! Will reflashing Pseudo Saturn Kai help something ?
A1 : It won't change anything ! Expansion RAM is a cartridge hardware feature and consequently Pseudo Saturn Kai (software side of the cartridge) doesn't have any interaction with it.
→ If your cartridge is experiencing troubles with expansion RAM, it's likely to be related to cartridge connection or cartridge itself. So rather than e-mailing me, it's more relevant to contact the manufacturer or re-seller of your cartridge about this kind of issue.

Generally speaking, all Action Replay cartridges and their clones are using legacy electronic components no longer manufactured for nearly a decade. So even if your cartridge was sold as "brand new", it may either contain refurbished chips, or counterfeit chips, or both : there's not a lot to expect regarding quality.


Q2 : Cartridge self test feature in Pseudo Saturn Kai doesn't reports any problem : does it means that the hardware of my cartridge is working correctly ? And consequently does it means that the XYZ problem I'm experiencing is related to Pseudo Saturn Kai ?
A2 : Cartridge self test feature just tests the bare minimum of the cartridge : if it fails, then there is certainly a problem around hardware. Conversely, it doesn't means anything when no problem is reported.

BTW, I developed this self test feature to quickly test the hardware of a cartridge, and not to get a proof that hardware is not guilty when a problem happens ! It's always exhausting to read stuff like "cartridge self test passed, so my XYZ problem is caused by Pseudo Saturn Kai" ...


Q3 : I heard that game XYZ isn't compatible with Pseudo Saturn Kai ? Is that true !? Hurry up to fix that !
A3 : There are many causes of incompatibility other than Pseudo Saturn Kai :
  • Frequency incompatibility : Pseudo Saturn Kai bypasses game region check, but isn't any help regarding frequency compatibility : if a game was tailored to work on a PAL console, it may then not work correctly on a NTSC one and vice-versa.
    Simple countermeasure to this problem is to use game from same region of the Saturn where it will played on. And if it is not available then complete countermeasure is to add a frequency mod on your Saturn, or eventually to use a both NTSC and PAL Saturns for playing games of each regions.
  • CD-R and Saturn laser affinity : Saturn wasn't developed to play games from CD-R, which may be harder to read than official CD-ROM.
    So if a game doesn't wants to boot, then it's worth trying with another brand of CD-R, or to burn it at different speed etc.

  • Disc image dump quality : iso+mp3 format was good when downloading few tenth of MB cost time and money but is an aberration regarding compatibility.
    Nowadays, downloading large files is not a real problem hence bin+cue format should be considered as the bare minimum requirement that usually plays well but may cause problems with some games.

    And, most accurate dumps are usually found in format supported by Rhea and Phoebe and should be preferred if you want to avoid problem(s) caused by discs badly dumped.

    Additionally, I would like to remind that Pseudo Saturn Kai main role is to play CD-R backup copy of games from your collection, so if you want to ask me about the not playing iso or bin dump of the game you don't even own, then you're about to knock to the wrong door

    → First, purchase the original CD-ROM of your game, and test if it works on your Saturn or not : if it doesn't play, then supported frequency and/or hardware problem on Saturn side should be considered before asserting anything about Pseudo Saturn Kai. If the original game plays correctly it is then time to copy it on CD-R and then preserve original game preciously

    Finally, it would be appreciated from users (you) to report non-working dumps to the webmaster of the page where theses were downloaded from : this would help whole community regarding preservation of Saturn games.


Q4 : Are you earning royalties from Action Replay (and other clones) cartridge manufacturers ? If yes, then hurry up to fix my hardware problem !
A4 : I don't earn anything from legacy cartridge manufacturers : you paid $35 for your Action Replay cartridge ? I received $0 from it. You paid $60 for a red "all-in-one" ©®TM cartridge ? I received $0 from it.
Also, I never begged any crowdfunding to develop Pseudo Saturn Kai, and even preferred to nullify my donate page rather than receiving donation related to Pseudo Saturn Kai. You paid $0 for Pseudo Saturn Kai to be developed ? I did it during hundred of hours of my free time and sometimes with high doses of motivation

And while restricting Pseudo Saturn Kai usage to my own projects (USB dev cart and Gamer's Cartridge) would had significantly simplified software architecture, I did my best to keep Pseudo Saturn Kai compatible with other legacy cartridges so that a wide range of users can enjoy playing Saturn.
Maybe that looks simple to do, but it's really not : the more complex the software architecture is, the more likely development becomes difficult, or that unexpected problem happens in the meanwhile.

So if your cartridge is experiencing a problem, it would be appreciated if its manufacturer could be blamed instead of me



This Q4 / A4 is an half-joke : so far I wasn't asked about that, but it is mentioned here to put emphasis on all the time and energy it cost to develop Pseudo Saturn Kai (I started its development at the end of 2014 !), and all the returns I have from it ("fix my flaky cartridge", "fix support for that poorly dumped game") ...



It took time, but I could find a card a bit linked to customer support from my Dragon Ball cards collection, and hope you will appreciate it ... the card, not my customer support skills
「お父さんは、エンジニアリング以外のことは苦手なんです。」
だから、開発すら関わってないモノのサポートについては期待しないでね。

Read more How to fix your cartridge with Pseudo Saturn Kai

Pseudo Saturn Kai v6.314 : Easter Egg !

Written by cafealpha no comments
That's a bit late for Easter, but did someone noticed the one hidden in Pseudo Saturn Kai v6.314 ?

Easter Egg in Pseudo Saturn Kai v6.314

This can be triggered by a key combo from Pseudo Saturn Kai main menu and ODE image selection menu. It's available in both lite and full versions of the firmware and can also be triggered from RmenuKai too.
Keys sequence was changed after taking the video above, so don't try to guess it from there ! Unsurprisingly, keys sequence is more complex in Pseudo Saturn Kai v6.314


Why such kind of technical demo in Pseudo Saturn Kai ? Simply because it was fun to implement
Additionally, this is also a small wink to the good old times I was daily using a TI-89 calculator : this Easter egg was ported from Voxel2Space demo by Kai Kostack.

I still keep using my TI-89, but way less more than when I was a student. It's actually quite handy to do quick math or binary to (hexa)decimal conversions at work : the more Windows evolves, the more horrible its builtin calculator becomes (seriously, my eyes are about to bleed each time I see the Windows 10 calculator ), so it's good to have a physical calculator at reach of hands




Let's play a game with this Easter egg : the first one to find the correct keys combo will be rewarded by a Gamer's Cartridge from my own collection !

During the last years, I was gathering Gamer's Cartridges with custom 3D printed shells and PCBs from various production batches and different times of the development of the cartridge.
Rather than just putting on sale, theses are kept for good occasions, and finding this keys combo is one of such kind of good occasions
Custom cartridge shell .
Thanks to zone66x for designing
and printing them


Rules :
 - Post the correct keys combo in the comments of this article.
 - This is limited to one Gamer's Cartridge, for one lucky Pseudo Saturn Kai user.
 - Don't forget to indicate an email address where you can be contacted !
   This is necessary for offering the reward.
 - Choice of the Gamer's Cartridge shell color etc is at my own discretion.
 - Application will end in December 31st, 2019 : if nobody find the key combo until that time, I shall re-use this Gamer's Cartridge for similar kind of games with my Saturn projects.

Read more Pseudo Saturn Kai v6.314 : Easter Egg !

Compiling Pseudo Saturn Kai

Written by cafealpha 2 comments
I was recently asked about the instructions to compile Pseudo Saturn Kai from sources archive provided with Pseudo Saturn Kai binaries, so let's write a short blog article to make things clear to everyone.

The simple answer is : Pseudo Saturn Kai can't be compiled with theses sources.


End of simple answer. Those who want more details can refer to the few lines below.
Technically, some sources files are missing from source archive, preventing someone from opening sources archive, making some few changes, and installing it on a cartridge.

Why ? For the simple reason nobody won't help me if ...
  1. Some dude takes sources, change logo and credits page and then release this as "Pseudo Saturn Kai Gold Edition made by some dude".
  2. Some dude adds a major new feature to Pseudo Saturn Kai, and start doing business by making this firmware (and the cartridges compatible with it) available for paying.
    This dude will eventually forget to release any source, but who care about that except me and few other nerds ...

Maybe I would be told this I'm overthinking, but case 1 and 2 above already exist. Theses are detailed in another blog entry, and deserve a look if your time allows it.

Concretely speaking, there is one model using Pseudo Saturn sources (whose sources are fully available, and with build instructions too), hacked to don't show any startup menu (why not would you say, it's more convenient for the consumer), and consequently not showing any credits nor any mention it was made from Pseudo Saturn ... why not would you say, but that's a massive NO for me, and the Pseudo Saturn team will certainly not appreciate that too.

Some other projects are using fancy case and label instead of Action Replay ones (I'm OK with that, especially because Action Replay design guidelines are completely outdated), but don't mention anything about Pseudo Saturn Kai on their covers and labels until booting the cartridge and discovering ... a vanilla version of Pseudo Saturn Kai without any mention of the fancy product name advertised on the cartridge box and label
I'm sorry for the consumers who were expecting firmware design to be unified with cartridge box and label : this wasn't done because some few files are missing in Pseudo Saturn Kai sources !


This case of "some people are making money from rebranded homebrew projects" is also detailed on Segaxtreme forums, which deserves a look if your time allows it.
The thread there is not by me, nor about Pseudo Saturn Kai, so I hope how real the fact is that there are people making money from other people's hard work ... that's maybe normal in any work place (), but that's a dick move in such a small Saturn homebrew community.


To sum up the bulky paragraph above, the way of sharing Pseudo Saturn Kai source code is not how it works in free software world.
In an ideal world, everybody share source code, and everybody other make contributions, and the project is getting brighter by brighter.
So if the story stops here, I'm the bad one, but in real world, people deface the credits page, rebrand the projects under fancy names and start making cash and show business from projects they didn't contributed on ... Maybe it's selfish from me, but I don't want that and consequently removed few files from Pseudo Saturn Kai source code.


And if I may add an additional paragraph about Pseudo Saturn Kai, I would like to say it is quite open in the magic world of application to play games on Saturn real hardware : modchips are completely closed-sources, ODE too.
In Pseudo Saturn Kai, the sources of the exploit to play CD-Rs, as well as the ones to redirect memory devices to SD card are available.
The source code of the implementation of cheat codes engine is available too. I coded it from scratch because sources of Action Replay firmware are not open source ...


To add a bit of melodramatic taste to this blog article, I would like to say I spent the last four years developing Pseudo Saturn Kai.

I didn't asked for any payment about it. The next day after I received a $5 donation for it, I changed my donation page from "send money here if you want" to "send me kind message or a comment on my blog".

I didn't begged for any kind of crowdfunding too, and just wanted to continue the project where CyberWarriorX left it.

While four years seems a long period for just two or three features, you probably may want to look at Pseudo Saturn Kai credits page, and all the people who contributed to it.
Theses two or three feature are not the kind of thing someone develop, test, re-test, fix, and keep testing more and more during a weekend. From my own experience, normal people don't continue development so far and just give up development after a couple of weeks.
And, I won't appreciate this credits page to be defaced. Not for my nick to be removed (I'm listed there only one time), but for the respect to all the contributors being lost.

And while I developed custom cartridge using Pseudo Saturn Kai, I kept support for Action Replay cartridge and their clones. That may sound obvious, but technically speaking it isn't, mostly because Action Replay have limited ROM size.
At some point of Pseudo Saturn Kai development, I hesitated to put cheat codes feature in a ROM portion larger than current one, but unavailable from Action Replay cartridges.
This would had made more cheat codes available, but the feature itself usable on Gamer's Cartridge only. I choose to keep a reasonable size for cheat codes list, so that it would be available for everyone on Action Replay cartridges


Words count for this initially expected "short" article is about to reach four digits soon (it's 827 words now), and as I doubt a lot of people will read it entirely, it's probably time to conclude :
  • No full sources for Pseudo Saturn Kai
  • If you want to make you own Saturn cartridge firmware, then feel free to use Pseudo Saturn sources as a starting point.
  • Feel free to technically refer to Pseudo Saturn Kai source code, and to merge whatever you find interesting there to your project.
Still begging for Pseudo Saturn Kai full source code ? No problem, I shall make it available to everyone ... if there's not a physical disaster on my dev laptop or its SSD in the meanwhile.
At that time, this will definitely be the end of Pseudo Saturn Kai development. For you, and for me too.

Read more Compiling Pseudo Saturn Kai

Pseudo Saturn Kai Installation Video

Written by cafealpha 3 comments
I sometimes have several nice stories about hardware/firmware/software development experiences I would like to develop on this blog, but when comes the time to write it's usually annihilated by ...
  • The lack of free time : my "free time" for Saturn is usually one hour or two in the early morning, or a similar duration during night
  • The lack of financial support : while Pseudo Saturn Kai kept me busy for around 5 years (I started by developing firmware flasher in August 2014, to then start developing my own Kai firmware from the following year), I only received 5 US dollars for it.
    Maybe it would had been smarter to do more aggressive show business about my Saturn projects to get more money from crowds, but while I consider development as a funny activity, show business isn't : bragging about some project super cool but shall be finished someday is not for me.
    I prefer to directly try finishing theses unfinished projects instead
  • The lack of motivation : after writing an article here, that usually ends in ...
     - People commenting, but about a Pseudo Saturn Kai setup trouble  on their clone cartridge usually not related to the blog article it was commented from.
     - People commenting, but about requiring about unrelated XYZ feature in Pseudo Saturn Kai, or any kind of technical collaboration that I should definitely volunteer on.
     - Nobody commenting : I personally consider this is as the best option because at least it doesn't requires me to spend time writing any reply.

    Okay, here is just a flaky blog about B-rank homebrew projects made by one random dude on a vintage video games console, so who care ?
    But whatever it may be, I continue unidirectional writing here in order to get fun stories to tell to grandchildren in the future

Back to the main topic : no motivation and no time for this blog. As a countermeasure let's write a short article

As indicated on the title, this is about installation videos of Pseudo Saturn Kai !
For the "no time and motivation for show business" reasons detailed above, I personally don't had time to do any kind of video, but Retro Sim was kind enough to prepare one

Pseudo Saturn Kai v6.314 installation video

I hope this video showed how easy to upgrade from an older version of Pseudo Saturn Kai to latest one : that's just the matter of burning a CD-R, to boot it in the same way as your favorite game, and to follow instruction displayed on screen !

The only difficult part during installation of Pseudo Saturn Kai (for example from Action Replay stock firmware) is that it requires usage of CD swap method to make setup CD-R booting correctly.
This is however not necessary when installing over an older version of Pseudo Saturn Kai, so there are no excuses to use outdated version of Pseudo Saturn Kai

This latest v6.314 flavor of Pseudo Saturn Kai was made with my heart, blood and tears as the previous ones, so I hope it will contribute to make Saturn more and more appreciated
There aren't major feature addition from previous (6.274) version, but cheat codes support was a bit improved and all control pads including third party ones should be now correctly supported. And as usual, it's free (like in free beer) to use

Read more Pseudo Saturn Kai Installation Video

Pseudo Saturn Kai v6.314 - The newer the better

Written by cafealpha no comments
As indicated in the title : I'm glad to announce the release of Pseudo Saturn Kai v6.374 ! It is available for download at the usual address on my homepage.

This time, there aren't any "big" feature added, but rather a streak of small fixes as well as few minor improvements too. So don't wait to upgrade your cartridge and enjoy even more your favorite games with Pseudo Saturn

What's new :
  • Show error message when SD card is not inserted into Rhea/Phoebe ODE.
  • Added RmenuKai : enjoy cheat codes on Rhea/Phoebe even without cartridge !
  • Improved compatibility of JHL loader-only games with Rhea/Phoebe ODEs.
    (Panzer Dragoon Saga can now be correctly loaded from Rhea ODE)
  • Improvements in automatic selection of game in cheats codes feature.
  • Improvements regarding Virtual Memory Cartridge automatic settings.
  • Fixed support for some third party wireless pads.
RmenuKai for Rhea/Phoebe : test with cheat codes for NiGHTS
If you prefer hedgehogs, there is also a similar video with Sonic 3D.


And there's also a small Easter egg hidden in some menus ... will you be able to trigger it ?

What didn't changed :
  • Plays games backed up on CD-R, without the need of any hardware mod.
  • Comes with a bunch of pre-installed cheat codes.
  • Provides image selection menu for Rhea and Phoebe ODE.
  • Available for free and for everyone : it doesn't costs any license to install, and I didn't begged any money to develop Pseudo Saturn Kai too.

This version was thoroughly tested by same beta testers who followed development from last public release, but on the other hand it was tested by ... nobody else during beta testing phase ... this is probably a fault from me (it was announced for one week on segaxtreme forums, and ... for one day on this blog), but today is the third anniversary of initial release of Pseudo Saturn Kai as well as Gamer's Cartridge so I didn't wanted to miss this occasion 

So don't worry and happy playing ! I spent last 5 months in developing this version, and my favorite beta tester spent the same period in testing around twenty beta builds so it will run fine on your Saturn ! Trust me, I'm an engineer
 

Not my favorite PCB,
but at least it works.


It's time to pick up the kids at their Monday evening activities but I still have many tidbit stories to relate about ! So please stay tuned in future article(s)


Edit (2019/06/10) : it should be a good idea to add links for discussions on external sites :

Read more Pseudo Saturn Kai v6.314 - The newer the better

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