Ondrej Zajicek wrote:
On Wed, May 06, 2009 at 10:42:49PM +0300, Linkodas wrote:
I would suggest to add bootable CF or SD card connector (or two).
There are two use cases for such cards:
- Installation of Debian Linux (or another 'normal' Linux
distribution compiled for ARM). It is much simpler to install
such distribution on CF or SD card than on internal NAND flash.
- Persistent storage of system logs and other runtime writable
data.
I agree it is good idea. SATA/USB to CF or SD is best solution IMO.
It should be possible to implement CF or SD card slot using
a couple of GPIOs.
It will be very ssslllooowww... and will use a lot of CPU resources.
At least comparing to SATA converter or even USB adapter.
AFAIK Mikrotik Routerboard 532 has CF card slot connected in such way
and it is sufficient for these purposes. External devices on USB or SATA
are viable alternative (especially USB flash memory), but they are
often less convenient than internal card slot.
I don't want to believe that CF is connected to GPIO - too many signals.
CF = IDE so I think that their CPU just has IDE.
Our CPU also has IDE, but it is hard to use it since its pins are muxed
with NAND flash pins...
IMO the best option is to use USB<->MMC/SD chip with internal connector.
Thanks for comments.
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