Recent content by Tschicki

Hey! The specs of the new crystal and speakers look fine to me. Maybe the speakers require slight adjustments to the 3D printed covers, but that's no big deal (both .step and .sldprt are in the repo). The soldered connection is debatable, but in the end it's your build up to you to decide...

C1501 and C1502 are marked DNP in the schematics and should ideally not be populated. If you compare with a 79k or 90k mainboard, they are also not populated there - most likely because they are integrated in the RTC. The RTC will work in both cases (populated or not), but it will drift...

The part number of that crystal may have changed at some point (?), because all stock I ordered back then is marked with NX3225GA-16.9344M-STD-CRG-2. Searching for it in Digikey or Mouser now redirects to the STDCRG2-16.9344M, which is the correct part and fine to use. I will try to update that...

What’s up with NOR-flash these days? Somehow I get 2022 flashbacks… MX29LV640ETTI-70G: As alternative you can use the MX29GL640EBTI-70G or the S29GL064S70TFI030 you proposed, both should be fine. The location of the boot sectors should not matter in this application, the only hard requirement I...

Hey! Some time ago I was actually working on a more user friendly version of the boot ROM flex that could be flashed in-circuit via UART, including a command line tool to transfer the bios binary. It worked OK, but I wasn't happy with the mechanical construction and the rather long flashing...

Hey there! Recently I got to try out the Nintendo Switch 2 and I was impressed by the new analog sticks. Compared to the Switch 1 sticks, these feature slightly larger stick caps (17.5mm vs. 15mm) and their movement feels smoother. I’m considering to use the Switch 2 analog sticks for other...

Thanks! All design files were released here. Small update: After thinking about the implementation for a while, last week I was working on the last planned feature: MAGH auto-detection. Over the last months I noticed that for some games the MAGH value, or horizontal resolution, is not static...

A Custom PlayStation 2 Portable from Scratch About this Project This is a PlayStation 2 portable, custom designed from the gound up with a strong focus on ergonomics and usability. It contains presumably world's first custom reverse engineered PS2 mainboard not made by Sony, and is only...

Hey, time for a quick update to let you know that I'm still alive! Yes, for the whole reballing process I used a hot air station and an IR preheater, but I also made use of my reflow oven for baking all the parts. With a bit of practice it's actually not too bad. In the project documentation I...

Hey, time for a small update! First the good news: Last weekend I assembled Rev. 0.3 of the PS2 mainboard and so far it is fully functional! The bad news: Actually none, apart from... I unfortunately forgot to order some components required for assembling the portable. They will probably be...

Update time! I was actually thinking about this a couple of times, but mainly for easier debugging of the video processor. Something like the Sil9022 HDMI transmitter would be quite fun to play around with! Considering the frustrating amount of different PS2 revisions, I imagine it would be a...

Hey, thanks for the suggestion, those connectors look like the PanelMate series from Molex! They would actually be quite neat, as pre-crimped cables are available and they are low profile enough to fit between mainboard and LCD (<2.2mm mated height). The side-entry type might make it a bit...

Time for a long overdue update! Work has been a little bit tough in the last months, so I wasn’t too motivated to work on electronics stuff at home… but don’t you think there was no progress on the project! Yes, that's the plan! Testing, Bugfixes and PS1 Mode I’ve been using the prototype...

Finally, it’s time for an update! Since the last update I was mainly busy with the FPGA and firmware, so here are a couple of points: Menu Last time I complained about the text size of the menu. To fix it, I enhanced the sprite module to include a global integer scaling factor. The sprite...

Hey, time for a tiny update! This time there are two topics to discuss: SD2PSX Well, I got all the parts & the flex PCBs and assembled one SD card sized SD2PSX. After I cleaned the PCB, I continued by adhering the top & bottom 3D printed parts to the flex PCB using 2K epoxy (also potted all...