On Tue, 2002-08-27 at 17:46, S Mohan wrote:
> Lynn/Mike and list members:
> I got one too here in India. Cost me $40 eq. Qty, duties and demand
> being the culprits. I looked at the board. It has a r8 on the top which
> is for WP. The manufacturer has not given a jumper though. Looks like we
> have to rig up a jumper.
S Mohan,
Correct, and it requires soldering. Email me off-list for a schematic of
the ADM. Pin 30 on the ATA-Disk Chip and pin 62 on the ATA controller
(LD017_A0) compose the two ends of R8. A switch/jumper will require a
connection to VCC also. I think I have that right.
> It also says we can write and set the register
> for WP enable from the motherboard. Can some one who understands this
> better create a small c program for us to deploy please?
This is only possible on the versions with the R8 build time option
enabled. I've seen it work at the embedded conference. SST demoed a unit
with R8 enabled, and a pc board sitting between the motherboard and the
ADM. Using a dip switch bank they were able to switch WP state on the
fly by toggling pin 30 on the IDE interface.
Note: versions with the R8 build time option enabled are only
available to OEMs that want quantity.
We probably should move any further hardware discussion to the
leaf-hardware list.
--
Mike Noyes <[EMAIL PROTECTED]>
http://sourceforge.net/users/mhnoyes/
http://leaf-project.org/
-------------------------------------------------------
This sf.net email is sponsored by: Jabber - The world's fastest growing
real-time communications platform! Don't just IM. Build it in!
http://www.jabber.com/osdn/xim
------------------------------------------------------------------------
leaf-user mailing list: [EMAIL PROTECTED]
https://lists.sourceforge.net/lists/listinfo/leaf-user
SR FAQ: http://leaf-project.org/pub/doc/docmanager/docid_1891.html
