"Joey.G" <jjoey.gold@gmail.com> wrote in message 
news:0d318648-49a1-4d8b-a217-64498c802f1f@24g2000yqm.googlegroups.com...
>
> My ARM9 cpu has SD hardware   ...  but what is needed to impliment
> SDHC..... is extra hardware required or only software driver.
>

You might find some useful clues here:

http://palmsdhc.blogspot.com/

--
Chris Burrows
CFB Software

Armaide v2.1: ARM Oberon-07 Development System
http://www.armaide.com

Hi All,

From my limited understanding the physical interface is the same
between the SD and SDHC  except the read/write speed is much faster...

My ARM9 cpu has SD hardware   ...  but what is needed to impliment
SDHC..... is extra hardware required or only software driver.

Thanks in Advance
Joe