Serial port speed read write benchmark

[Ian Micheal]

Any indie game could use it for more levels replays save space etc dont need dreamshell to load it can use fat32loader included in kos to do all that as the same time as the main game loads

with one caveat, DreamShell has its own SD-SPI driver, which is faster than the one built into KOS

Yes that be good to upgrade in kos for sure.. I'm using fat32 loader right now still seems pretty fast but have no benchmark..
Seems to be with in sec's at the moment.. I know it could be made faster..

Dreamshell is amazing but the way i want to use the serial port it's not needed as I'm building in that to the main bin so its' seem less ..

Kos fat32 versions would need upgrading for more speed .. At the moment it's still faster loading doom from a cdr

[Ian Micheal]

Not as slow as i see a lot claim

your SD card is not very good quality, a card with a fast controller gives out 7 Mbit/s

Yes cheap walmart card Was like $5 lol

[megavolt85]

SD serial is not very much in demand, if indie developers would like to use external storage, I would write a driver for the USB2SERIAL adapter, and the cost of such an adapter is only $2-3 higher than that of SD2SERIAL

[Ian Micheal]

SD serial is not very much in demand, if indie developers would like to use external storage, I would write a driver for the USB2SERIAL adapter, and the cost of such an adapter is only $2-3 higher than that of SD2SERIAL

That be great as well problem is people not taking advantage of it..

For now i will release the hybrid homebrew that can use both places at once for people to use Expand on the idea just for fun..

[DarkVampire295]

That's pretty much it as far as i can tell as well I think!! Common it's too slow is from coders using the serial cable [ coders cable]]

I think Atomis wav conversions ports which play perfect on it not a cdr should of shown people by now that if the files are more like rom it's fast and useful

Main thing for me is being able to read from 2 sources at the same time.. Many things if you coded it for you could do it's only a benefit.. I ve rleasing my hybrid homebrew ports soon

Simple use DOOM with full CDDA loading levels while playing CDDA at the same time this cant be done on cdr it has to stop to load data etc



Unpacking and loading levels From both cdr and sd card at the same time

I remember Doom 4 Vanilla the problem I had was when I grabbed the chaingun I got an error saying bad sfx shutdown maybe running it off the sd card adapter will fix that I am totally sold on the SD card adapter now

[MoeFoh]

SD serial is not very much in demand, if indie developers would like to use external storage, I would write a driver for the USB2SERIAL adapter, and the cost of such an adapter is only $2-3 higher than that of SD2SERIAL

That's the spirit!

[birdonwheels]

I'm excited about the future of Serial Port SD homebrew! I've had a couple of DC SD adapter V2's for a while but haven't been able to get a SD card recognized by software on the Dreamcast. I was sure it was the adapter, so I ordered another... nope. The 2nd one had a loose connection to the serial port!

Gave up, until I asked Ian Micheal on Youtube for some guidance. The SDs that were tried were the following: Samsung evo (SDXC 128gb), Kingston (SDHC 32gb), Sandisk(class 2, 4GB), and Toshiba (class 4, 4GB).

The two larger cards are full-size class 10 and are in overall good health, but they could not be detected by Retrodream or Dreamshell.

The smaller cards are micro SDHC. I used to use these for my old phones. When I found them they were so dirty they wouldn't work, cleaning the contacts with isopropyl alcohol and q-tips fixed that. Now both work for GDEMU, but only the 4GB Sandisk will be detected by RD or DS. I'd love to know if others had this issue.

Now I use it like a hdd for my Dreamcast for save storage. I can finally play Half Life 2 without dedicating a VMU for it. Can't wait to play games on it.

[DarkVampire295]

So I like have a question since the cdr has dreamshell how does it read the disc for the game and the sounds come from the sd card? Kinda new to that concept

[Ian Micheal]

So I like have a question since the cdr has dreamshell how does it read the disc for the game and the sounds come from the sd card? Kinda new to that concept

Sounds or cdda come from the cdr not using dreamshell loader at all but fat 32 loader built into the bin

data is being read== write to the sd card/// cdda or music or adx is coming from the cdr this means reading in 2 places at once so any streaming format can play while loading data..

Cant stream cdda and load data at the same time on cdr you can with what I'm doing since all data is loaded from the sd card..

simple concpet works flawless

SD card has faster seek times data loads faster Course optimized fat32 loader ..

[DarkVampire295]

So I like have a question since the cdr has dreamshell how does it read the disc for the game and the sounds come from the sd card? Kinda new to that concept

Sounds or cdda come from the cdr not using dreamshell loader at all but fat 32 loader built into the bin

data is being read== write to the sd card/// cdda or music or adx is coming from the cdr this means reading in 2 places at once so any streaming format can play while loading data..

Cant stream cdda and load data at the same time on cdr you can with what I'm doing since all data is loaded from the sd card..

simple concpet works flawless

SD card has faster seek times data loads faster Course optimized fat32 loader ..

so drag the bin on the sd card and boot the game on the cdr and it will be 2 places at once that is awesome