OESF Portables Forum

Everything Else => Sharp Zaurus => Model Specific Forums => Distros, Development, and Model Specific Forums => Archived Forums => C1000/3x00 Hardware => Topic started by: Tomoe on October 31, 2006, 01:39:25 am

Title: Usb 2.0 High Speed
Post by: Tomoe on October 31, 2006, 01:39:25 am
Gentlemen,

What are the possible ways to get a high speed (i.e. 480Mbps) USB bus on Zaurii?
Title: Usb 2.0 High Speed
Post by: Da_Blitz on October 31, 2006, 04:34:04 am
NO, hardware limitation

12Mbps is USB 2.0  OTG is part of the USB 2.0 spec what you want is "high speed" which i think should be called "full speed" as its backwards to me
Title: Usb 2.0 High Speed
Post by: Tomoe on October 31, 2006, 12:41:07 pm
Quote
NO, hardware limitation

12Mbps is USB 2.0  OTG is part of the USB 2.0 spec what you want is "high speed" which i think should be called "full speed" as its backwards to me
[div align=\"right\"][a href=\"index.php?act=findpost&pid=145198\"][{POST_SNAPBACK}][/a][/div]
Duly noted and corrected, thanks. I always mix the two of them.

Anyways, really, no way of pulling it? What about CF USB cards and stuff like that?
Or anything... Anything!

=P
Title: Usb 2.0 High Speed
Post by: InSearchOf on October 31, 2006, 02:48:11 pm
Quote
Duly noted and corrected, thanks. I always mix the two of them.

Anyways, really, no way of pulling it? What about CF USB cards and stuff like that?
Or anything... Anything!

=P
[div align=\"right\"][a href=\"index.php?act=findpost&pid=145230\"][{POST_SNAPBACK}][/a][/div]

Well if you can get the drivers down... then yes... if the CF usb card support 2.0 and OTG you will get 2.0 speed... as long as it has the "high speed" usb otg bridge...

Late
Title: Usb 2.0 High Speed
Post by: lardman on November 01, 2006, 05:14:37 am
I don't think there are many usb CF cards. I have a ratoc and it's only usb1.


Si
Title: Usb 2.0 High Speed
Post by: sidmoraes on November 01, 2006, 05:39:54 am
Think about...

The cpu does not manage the throughput.
Title: Usb 2.0 High Speed
Post by: Da_Blitz on November 01, 2006, 06:56:53 am
actually you would max out the CF bus as well, i wouldnt expect to see high speed throgh a CF card

i have seen a NSLU (same proc at 233Mhz) max out a usb 2.0 link while transfering the data over 100Mbit lan so its not really an issue of cpu speed
Title: Usb 2.0 High Speed
Post by: Tomoe on November 09, 2006, 07:34:31 am
Quote
NO, hardware limitation

12Mbps is USB 2.0  OTG is part of the USB 2.0 spec what you want is "high speed" which i think should be called "full speed" as its backwards to me
[div align=\"right\"][a href=\"index.php?act=findpost&pid=145198\"][{POST_SNAPBACK}][/a][/div]
How about a CF->PCMCIA adapter + PCMCIA USB2.0 card?
I don't want/need full 480Mbps, just more than 11Mbps (mini harddrive+wifi+VGA card, maybe also LAN and BT). What I'm actually planning to do is to make a snap-on 'dock' for my Z, with this stuff and an aditional battery. And don't tell me to wait for your OpenPDA cuz I don't want to pay for it with my first pension check. =P
Title: Usb 2.0 High Speed
Post by: lardman on November 09, 2006, 10:01:48 am
Quote
PCMCIA USB2.0 card

I doubt these exist, in fact I doubt even USB 1.1 PCMCIA cards exist, they are all PC cards which aren't the same.


Si
Title: Usb 2.0 High Speed
Post by: Antikx on November 09, 2006, 11:32:09 am
Quote
Quote
PCMCIA USB2.0 card

I doubt these exist, in fact I doubt even USB 1.1 PCMCIA cards exist, they are all PC cards which aren't the same.


Si
[div align=\"right\"][{POST_SNAPBACK}][/a][/div]
 (http://index.php?act=findpost&pid=145904\")
It's my understanding that "PC Card" is what PCMCIA was renamed to.
*shrug*
[a href=\"http://en.wikipedia.org/wiki/PC_card]http://en.wikipedia.org/wiki/PC_card[/url]

EDIT: I read a bit further down and it says that the name changed when version (type?) two came out. Sorry.
Title: Usb 2.0 High Speed
Post by: koen on November 09, 2006, 11:42:07 am
PCMCIA = 16bit
cardbus = 32bit

The zaurus implements a pcmcia interface, so  you're 16 bits short
Title: Usb 2.0 High Speed
Post by: Da_Blitz on November 09, 2006, 09:31:04 pm
hahha, i love it how PC card vs PCMIA and USB 2.0 keep on comming up, prehaps we need to sticky this somewhere