DC-SWAT - Сайт о Sega Dreamcast и не только.

DreamShell 4.0.4 is a major update that takes the operating system beyond the home console: full support for NAOMI and NAOMI 2 arcade platforms, launching NAOMI cart ROMs and Dreamcast GD-ROMs images from IDE and SD on these platforms, the NAOMI coin syst…

This article describes a direct wiring connection between a standard Sega Dreamcast expansion (G2) port devices (like Modem, Broadband Adapter or LAN adapter) and the CN2 connector on the Sega NAOMI and NAOMI 2 motherboards.

This article describes a direct wiring connection between a standard IDE connector and the CN1 connector on the Sega NAOMI and NAOMI 2 motherboards.

This article describes connecting a WIZnet W5500 Ethernet controller to Sega Dreamcast and NAOMI/NAOMI 2 systems using existing serial interfaces configured for SPI.

A simple hardware modification for NAOMI and NAOMI 2 to disconnect the JVS controller from port 0 (port A on the Dreamcast).

Released: 30 Sep 2025 Updated: 4 Oct 2025 Video preview: youtu.be/Pa0eOxhI64o and update youtu.be/AVQEenhZroo Forum thread: www.dc-swat.ru/forum/thread-4214.html Download from Github, Discord, YouTube

Video preview: youtu.be/4cWNQEyqHGs Forum thread: www.dc-swat.ru/forum/thread-4178.html Download from Github, Discord, Videos

This guide explains how to access the SH-4 SCI port on Sega Dreamcast and NAOMI systems in both UART/SPI communication modes.

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The project is alive and developing as much as possible.

Update 05.02.2016: Uploaded all source code to GitHub.

Due to the increasing incidence of spam, user registration on the website (not the forum) will soon be by invitation only.

Данные манипуляции позволят изменить не только региональную принадлежность консоли (America, Japan и Europe), но и формат выдаваемого видео сигнала (NTSC или PAL50).

Статьи в разделе Dev будут посвящены программированию под консоль Sega Dreamcast.

Данный мод теперь не актуален, если вы хотите сделать BIOS mod, то воспользуйтесь старой схемой.

Update 08.09.2014: Uploaded to GitHub and updated change list.

Several HD videos demonstrating improvements and features in the new version of ISO Loader.

Update 30.05.2014: Fixed a bug at reading CDI and unoptimized GDI in ISO loader firmware New optimized and working on all consoles CDI images with Core and Boot loader Update 29.05.2014: Updated ISO Loader firmware, module and app up to v0.4.1 — Improved…

Update 21.04.2014: D2, Jet Set Radio, Rayman 2, Sonic Adventure 2 Update 15.04.2014: Alien Front Online Update 13.04.2014: Illbleed Several videos demonstrating the G1-ATA adapter with IDE HDD.