OESF Portables Forum

General Forums => General Discussion => Topic started by: adf on April 07, 2007, 02:17:23 pm

Title: Sdhc
Post by: adf on April 07, 2007, 02:17:23 pm

Anyone know if the 8 gig High Capacity Secure Digital (sdhc) cards will work on any rom/model of Zaurus?

Title: Sdhc
Post by: Antikx on April 11, 2007, 09:22:24 am

It's my understanding that SDHC is a hardware and software upgrade. The Zaurus doesn't have the hardware upgrade, so it's a show stopper.

Title: Sdhc
Post by: koen on April 11, 2007, 11:35:59 am

Quote

Anyone know if the 8 gig High Capacity Secure Digital (sdhc) cards will work on any rom/model of Zaurus?
[div align=\"right\"][a href=\"index.php?act=findpost&pid=158190\"][{POST_SNAPBACK}][/a][/div]

4GB sdhc cards seem to work fine with the linux-rp 2.6.20 kernel

Title: Sdhc
Post by: Antikx on April 11, 2007, 12:03:00 pm

Quote

Quote

Anyone know if the 8 gig High Capacity Secure Digital (sdhc) cards will work on any rom/model of Zaurus?
[div align=\"right\"][a href=\"index.php?act=findpost&pid=158190\"][{POST_SNAPBACK}][/a][/div]

4GB sdhc cards seem to work fine with the linux-rp 2.6.20 kernel
[div align=\"right\"][a href=\"index.php?act=findpost&pid=158503\"][{POST_SNAPBACK}][/a][/div]

Very interesting, Koen. Thanks.
That seems to turn this communities conclusions on it's head.
Do the OE team have to do anything in particular to get the SDHC cards to work?

Title: Sdhc
Post by: koen on April 11, 2007, 12:47:16 pm

Quote

Quote

Quote

Anyone know if the 8 gig High Capacity Secure Digital (sdhc) cards will work on any rom/model of Zaurus?
[div align=\"right\"][a href=\"index.php?act=findpost&pid=158190\"][{POST_SNAPBACK}][/a][/div]

4GB sdhc cards seem to work fine with the linux-rp 2.6.20 kernel
[div align=\"right\"][a href=\"index.php?act=findpost&pid=158503\"][{POST_SNAPBACK}][/a][/div]

Very interesting, Koen. Thanks.
That seems to turn this communities conclusions on it's head.
Do the OE team have to do anything in particular to get the SDHC cards to work?
[div align=\"right\"][a href=\"index.php?act=findpost&pid=158505\"][{POST_SNAPBACK}][/a][/div]

Just keep the 2.6 kernel port updated

Title: Sdhc
Post by: Antikx on April 11, 2007, 04:46:09 pm

Thanks for the info. Great news!

Title: Sdhc
Post by: Jon_J on April 11, 2007, 05:13:52 pm

Does this mean that when 16 GB, 32 GB, and 64 GB cards come out, that we can use them:
There is already an 8 GB SDHC card available.

Title: Sdhc
Post by: adf on April 12, 2007, 01:41:10 am

Quote

Does this mean that when 16 GB, 32 GB, and 64 GB cards come out, that we can use them:
There is already an 8 GB SDHC card available.
[div align=\"right\"][a href=\"index.php?act=findpost&pid=158535\"][{POST_SNAPBACK}][/a][/div]

excellent--- an 8 gig sdhc on the 6k would keep it in the game for a long time to come

Title: Sdhc
Post by: Jon_J on April 12, 2007, 01:46:22 am

look here, a post from Sept 8, 2006
8gb sd
https://www.oesf.org/forums/index.php?showtopic=21398 (https://www.oesf.org/forums/index.php?showtopic=21398)

Title: Sdhc
Post by: Da_Blitz on April 12, 2007, 07:10:37 am

AFAIK the only diffrence between SD and SDHC is they bumy the bus freq up to 50Mhz, i dont belive there are any other protocol changes, can anyone clarify this?

i remeber backwards gompatibility bieng a big thing for the SD people and i bet the cards still work in 1 bit mode or SPI mode (ie MMC mode) however the biggest problem with consumer devices is not the SDHC itself but the move from FAT16 to FAT32, i know of several cameras that dont like anything other than FAT16

Title: Sdhc
Post by: koen on April 12, 2007, 07:33:45 am

Quote

AFAIK the only diffrence between SD and SDHC is they bumy the bus freq up to 50Mhz, i dont belive there are any other protocol changes, can anyone clarify this?

i remeber backwards gompatibility bieng a big thing for the SD people
[div align=\"right\"][a href=\"index.php?act=findpost&pid=158615\"][{POST_SNAPBACK}][/a][/div]

There are multiple changes, which is why they are called SDHC cards instead of SD cards, so they don't have to pretend to be compatible.

Title: Sdhc
Post by: speculatrix on May 30, 2007, 10:48:51 am

any news on SDHC in Angstrom? I figure that might be the first zaurus distro to have it.

Title: Sdhc
Post by: speculatrix on June 08, 2007, 06:42:08 pm

SDHC please!!!

With a 16GB sdhc card on sale now,  who needs an expensive 3x00 with a tiny little 4 or 6GB microdrive!!!

http://www.engadget.com/2007/06/08/kingmax...16gb-sdhc-card/ (http://www.engadget.com/2007/06/08/kingmax-shows-off-16gb-sdhc-card/)