microSD support

[Crane, Matthew]

Yea, I got the 32 number from another wikipedia page, I didn't infer it
from the name.  I don't think it has much really to do with 32bits
either for that matter, likely the "32" was entirely a marketing
distinction.
 
But that doesn't matter, the important thing here is that Micro$oft
sucks. 
 


________________________________

From: community-bounces at lists.openmoko.org
[mailto:community-bounces at lists.openmoko.org] On Behalf Of Martin
"fredthecat"
Sent: Tuesday, May 13, 2008 1:42 PM
To: List for Openmoko community discussion
Subject: Re: microSD support


>>> 32gb, the max size of a fat32 system

I think the 32 in "fat32" refers to bits not gb, see
http://en.wikipedia.org/wiki/Fat32

I'm currently using an 80Gb FAT32 drive at this very moment.

Part of the confusion might be that Windows won't allow you to easily
format a "large" drive in FAT32 but instead forces you to NTFS.

regards

Crane, Matthew wrote: 

	I think it can be a more general then that.   The cards that are
supported would be any standards compliant card, and the adress space
would be limited by what the kernel supports.  
	 
	The SD card association has limtied the size of sdhc to 32gb,
the max size of a fat32 system.  The kernel can support disks this large
as can the mmc card driver.
	 
	No doubt there's a lot of crappy SD cards out there that don't
comply well to standard interfaces though, but unless you're really
really skimping there's likely nothing to worry about with any common
microsd cards.
	 
	You could even support larger cards because we aren't limited to
fat32 on a linux phone.
	 
	But has anybody found an SD card that doesn't work with existing
hardware??   I only wish I had hardware so I can't test the few cards I
have.. 
	 
	Matt
	 

	 
________________________________

	From: community-bounces at lists.openmoko.org
[mailto:community-bounces at lists.openmoko.org] On Behalf Of Travis Tabbal
	Sent: Friday, May 09, 2008 9:52 AM
	To: List for Openmoko community discussion
	Subject: Re: microSD support
	
	
	I think he's asking if the phone will support SDHC, which is
required for larger cards and many older devices do not support. Or
perhaps if 8GB in particular has been tested. It would be nice to know
exactly what is supported, as those 8GB cards are getting cheap lately.
We might have to wait for the first phones to ship to know for sure what
will or will not work. Right now, only the OM dev team at FIC could test
it for sure, and they are kind of busy getting mass production going. I
think I'd rather have them do that and test the microSD size limits
later. 
	
	
	
	On Fri, May 9, 2008 at 6:16 AM, Crane, Matthew
<mcrane03 at harris.com> wrote:
	


		>From wikipedia entry on current sd cards:
		
		Memory capacity = (C_SIZE+1) * 512 K = (222-1+1) * 512 K
= (4194304-1+1)
		* 512K = 2147483648 K = 2048 GB
		
		So you're probally good.
		


		-----Original Message-----
		From: community-bounces at lists.openmoko.org
		[mailto:community-bounces at lists.openmoko.org] On Behalf
Of Giorgio M.
		Sent: Friday, May 09, 2008 6:53 AM
		To: List for Openmoko community discussion
		Subject: microSD support
		
		
		I know that freerunner will support MicroSD memory.
		
		I want know wich capacity it will support?can i use 8GB
microSD??
		
		what is the limit?
		
		thanks
		
		
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