Ahoy WonderSwan users, developers and hackers!
The WonderMadeleine HDL code is available on the treasure island of GitHub. That’s some treasure chest you’ve got there.
(sorry for the pirate speak ;))
So yes the HDL code for WonderMadeleine is now available, to fit in the Altera EPM240T100C3 MAX II CPLD (a TQFP100 CPLD so not too big and easy to solder)
There is currently no support for external EEPROM, RTC of GPIO, but they will come shortly, I need to finish the documentation on how to access them from the IO port as current documentation is merely wrong. I’ll also publish a more correct hardware documentation at the same time.
This HDL code is currently licensed with the CC BY-ND-NC 4.0 license, that mean that
- You cannot take CPLDs, burn them and sell them
- But you can create your own cart and use the CPLD burn with the code, and you can sell the game cart you made using this CPLD (as you are not making profit from the CPLD, but from your game)
- I’m currently not fond in allowing fork of this project until it is fully finished, but I will be really happy for patch proposal for supporting another CPLD or correcting bugs
- And you can’t integrated this code in a larger project. that mean that you can’t integrate it with other HDL code in a bigger CPLD or FPGA.
Some of this limitation may change in a near future, but they are applicable at the time this line as been written.
I may provide in a near future a template board, either only the borders for a board that fit in existing cartridge, or even a basic board with the Bandai, Flash ROM, SRAM and save battery, depending on people’s need.
I hope that this project will help the WonderSwan homebrew scene grows as it deserve it. This game console is just an unknown jewel.
Ten years ago, two student from the Cornell University (North Australia) released the first public homebrew cart and software for the WonderSwan that does not use the WonderWitch. See here.
Their project was a major breakthrough as they where the first to document the WonderSwan hardware, and they are the original authors of the well known wstech document.
And after they made their release… nothing more. There were no concrete or public hardware development for the WonderSwan that went to a releasable product.
Continue reading Finally…
Around one or two years ago a website with exclusive information on the WonderSwan disappear, I’ve manage to contact the author, the original server had a HardDrive crash, but he manage to restore some part and put them on another website. So here are the wsc_tech documents:
I have some sort of a copy of the wsc_tech1, it’s the IO mapping. I will eventually post it here soon.
I’m sending right now the data to process the batch of PCB, due to some test (printer’n’paper test are the best thing to do!) I found that I stupidly use the width of the internal cartridge PCB instead of the cart itself, and found out that the PCB was going more than expected in the swan, so I do a small modification on the PCB to use a more accurate width, and add a T shape like on top to support more the cart connector, and adding a small surprise on this part.
Continue reading Second update on WonderLyzer
Here is the great new, I was finally be able to correctly and cleanly dump a WonderWitch (without any hardware modification)! As you may know there is no known dump of the WonderWitchon internet, at least none I’me aware of. Anyway no emulator are really able to correctly support the WonderWitch. The only one that is “near” is oswan173, but there is no way to use it after as there is no serial port emulation, and I suspect that it does not correctly emulate the SRAM part as the WonderWitch use much more SRAM than standard game.
Also, don’t ask, I will not provide the dump for obvious copyright reasons.
But why I speak about this? Because the WonderWitch will allow me (and you also) to know more about the WonderSwan.
Continue reading New WonderSwan information, thanks WonderWitch!
I am still looking for swan parts! Don’t hesitate to leave a comment if you have something you want to give!
A friend of mine asked me for internal shot of the WonderWitch, so I do it even better, I take all the games I have with me, open them, then make some pron WonderSwan cardridge photos 😉
Here is a view of all the cartridge:
You can see that here the WonderGate is bit shy, he didn’t want to be nude on these photos 😉
Continue reading Some WonderSwan Pr0n…
Saddly, the NVidia 8600M GT of my main computer decided to die last Saturday, so I’m nearly computer less actually, and my project can’t follow the path I wanted. I can only work a little on my project during my work time. (Yes, that’s not a good thing to do, I know ;))
Continue reading Wonder Project! – Part 2