At 2002-02-07 17:59 +0100, arne @ loopback . org wrote: >On Thu, Feb 07, 2002 at 10:41:33AM -0600, Charles Steinkuehler wrote: > > No...this is not (easily) possible. > > > > The ATA interface is a complex combination of registers that > > require read/write access to send commands and recieve status/data > > from the ATA device. To install a "write-protect device" between > > the motherboard and an ATA device, you need something that > > understands ATA at the application level, and returns some sort of > > error for logical write commands. While not impossible to > > implement, something like this would be quite complex, on the order > > of the hardware RAID devices that look like a single large ATA (or > > SCSI) disk drive, but interface to multiple physical storage > > devices. > >I understand this. But as i see this, this special device has one pin >that it put to ground enables write protection. So what i that was: >why not put this adapter between it that does nothing but connecting >all pins from the device to the motherboard directly, except one, >#30, which can be set to ground or whatever using a switch. As #30 >seems not to be used by normal ATA, it should make not difference to >the motherboard. the adapter is just an physical extension to avoid >brazing on the ATA device itself...
Arne, If it was this easy, wouldn't SST have put a WP# jumper on the ADM? An announcement on the Apacer home page [1] leads me to belive that the SiS550 family [2] may support the ADM WP# pin. [1] http://www.apacer.com/ [2] http://www.sis.com/products/soc/550.htm -- Mike Noyes <[EMAIL PROTECTED]> http://sourceforge.net/users/mhnoyes/ http://leaf.sourceforge.net/content.php?menu=1000&page_id=4 _______________________________________________ Leaf-devel mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/leaf-devel
