DreamShell 4
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Re: DreamShell 4
Great work!!
is it possible to solder a SD adapter directly onto the dreamcast motherboard? without buying a VSCable or coders cable, thos are really hard to get
is it possible to solder a SD adapter directly onto the dreamcast motherboard? without buying a VSCable or coders cable, thos are really hard to get
Re: DreamShell 4
Wow thats pretty great.But one thing I dont understand,didnt most people say the serial port wasnt fast enough this kinda stuff?Too bad they still arent selling it, running katana tech demo would be cool.
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Re: DreamShell 4
"Fast enough" depends on how the game program reads files and how patient the user is. The serial port's top speed is much slower than the GD-ROM drive's top speed for sure (I think somewhere in the range of 10%). However, reads of small files can be faster because an SD card's seek time is practically zero compared to the GD-ROM drive.park wrote:But one thing I dont understand,didnt most people say the serial port wasnt fast enough this kinda stuff?
"You know, I have a great, wonderful, really original method of teaching antitrust law, and it kept 80 percent of the students awake. They learned things. It was fabulous." -- Justice Stephen Breyer
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Re: DreamShell 4
Not 10%, about 50% of the average speed of reading GD-ROM.Ex-Cyber wrote:"Fast enough" depends on how the game program reads files and how patient the user is. The serial port's top speed is much slower than the GD-ROM drive's top speed for sure (I think somewhere in the range of 10%). However, reads of small files can be faster because an SD card's seek time is practically zero compared to the GD-ROM drive.park wrote:But one thing I dont understand,didnt most people say the serial port wasnt fast enough this kinda stuff?
SD card connected to the DC, is equivalent to reading the GD-ROM at a speed of 4x (~500-600 kbytes/sec), plus the lack of pathfinding.
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Re: DreamShell 4
What serial clock rate are you using? I thought it topped out at ~2MHz.SWAT wrote:Not 10%, about 50% of the average speed of reading GD-ROM.
SD card connected to the DC, is equivalent to reading the GD-ROM at a speed of 4x (~500-600 kbytes/sec), plus the lack of pathfinding.
"You know, I have a great, wonderful, really original method of teaching antitrust law, and it kept 80 percent of the students awake. They learned things. It was fabulous." -- Justice Stephen Breyer
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Re: DreamShell 4
If use External Clock Input = 5 MHz and Pf = 30 MHz in Synchronous Mode, you can achieve speeds of 5000000 bits/s.
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Re: DreamShell 4
Are you using an external clock? That's not in the jj1odm schematic, and I haven't seen mention of it anywhere else, so I thought everyone was using an internal clock. I've also seen several mentions of transmission being unreliable at higher speeds, although those may be talking about a longer cable.SWAT wrote:If use External Clock Input = 5 MHz and Pf = 30 MHz in Synchronous Mode, you can achieve speeds of 5000000 bits/s.
"You know, I have a great, wonderful, really original method of teaching antitrust law, and it kept 80 percent of the students awake. They learned things. It was fabulous." -- Justice Stephen Breyer
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Re: DreamShell 4
The module only supports ISO 9660 images, which can create both:
mkisofs -V DC_APP -G IP.BIN -joliet -rock -l -o image.iso ./dir_with_files
In IP.BIN where there is a parameter GD-ROM/CD-ROM should be set to GD-ROM for the KATANA and CD-ROM for Homebrew.
LBA in KATANA BOOT.BIN must be patched by 0 (zero).
For those who do not know how to create ISO images, I made this package, it is the way the identity updated: iso_make.7z
Re: DreamShell 4
If they could make a browser for it, that could read CSS and other things, it would be just great.