comp.arch.embedded compact-flash/ide adapter A compact-flash/ide adapter (SD-CF-IDE-A) from dealextreme.com worked well but only as a master, not as a slave, which is a distinct bother. Anyone know of an ide adapter that works either way, either from dealextreme or another dealer? Hul
compact-flash/ide adapter
Started by ●August 16, 2012
Reply by ●August 16, 20122012-08-16
On 8/16/2012 3:44 AM, Hul Tytus wrote:> comp.arch.embedded > compact-flash/ide adapter > > A compact-flash/ide adapter (SD-CF-IDE-A) from dealextreme.com worked well > but only as a master, not as a slave, which is a distinct bother. Anyone know > of an ide adapter that works either way, either from dealextreme or another > dealer? > > Hul >This is not the fault of the adapter. The Compact flash cards do not know about master/slave, so it does not have code to run that way. hamilton
Reply by ●August 16, 20122012-08-16
On Thu, 16 Aug 2012 08:30:49 -0600 hamilton <hamilton@nothere.com> wrote in Message id: <k0j06t$bdv$1@dont-email.me>:>On 8/16/2012 3:44 AM, Hul Tytus wrote: >> comp.arch.embedded >> compact-flash/ide adapter >> >> A compact-flash/ide adapter (SD-CF-IDE-A) from dealextreme.com worked well >> but only as a master, not as a slave, which is a distinct bother. Anyone know >> of an ide adapter that works either way, either from dealextreme or another >> dealer? >> >> Hul >> >This is not the fault of the adapter. > >The Compact flash cards do not know about master/slave, so it does not >have code to run that way.I think he's looking for a adapter that has a master/slave jumper setting. Like the third picture down here: http://www.mesanet.com/diskcardinfo.html They're about $15. We use them from time to time...
Reply by ●August 16, 20122012-08-16
On 8/16/2012 8:53 AM, JW wrote:> > I think he's looking for a adapter that has a master/slave jumper setting. > > Like the third picture down here: http://www.mesanet.com/diskcardinfo.html > They're about $15. We use them from time to time... >Does the slave jumper really work ?? Can you have a master thats a hard drive or another CF adapter ?? The ones I have used in the past did not do that correctly. hamilton
Reply by ●August 17, 20122012-08-17
Hamilton - do you know where the compact-flash cards are deficient? I'm guessing they could simply ignore the drive bit in the drive/head register or be unaware of the SPSYNC/CSEL line that, if not used for spindle syncronization, can provide an inter drive communication about which is slave & which is master. Just guessing though; if you have a more clear understanding, it would be appreciated. Hul hamilton <hamilton@nothere.com> wrote:> On 8/16/2012 3:44 AM, Hul Tytus wrote: > > comp.arch.embedded > > compact-flash/ide adapter > > > > A compact-flash/ide adapter (SD-CF-IDE-A) from dealextreme.com worked well > > but only as a master, not as a slave, which is a distinct bother. Anyone know > > of an ide adapter that works either way, either from dealextreme or another > > dealer? > > > > Hul > > > This is not the fault of the adapter.> The Compact flash cards do not know about master/slave, so it does not > have code to run that way.> hamilton
Reply by ●August 17, 20122012-08-17
On Thu, 16 Aug 2012 09:06:09 -0600 hamilton <hamilton@nothere.com> wrote in Message id: <k0j296$pnc$1@dont-email.me>:>On 8/16/2012 8:53 AM, JW wrote: >> >> I think he's looking for a adapter that has a master/slave jumper setting. >> >> Like the third picture down here: http://www.mesanet.com/diskcardinfo.html >> They're about $15. We use them from time to time... >> > >Does the slave jumper really work ?? > >Can you have a master thats a hard drive or another CF adapter ?? > >The ones I have used in the past did not do that correctly.Yes, but one important thing - The CF must be marked as a "Fixed disk" type, and support the ATA standard. A lot of the CF out there is for use in cameras, and will not master/slave properly. We use the Transcend industrial CF media.
Reply by ●August 17, 20122012-08-17
On 8/17/2012 7:13 AM, dbr@kbrx.com wrote:> Hamilton - do you know where the compact-flash cards are deficient? I'm > guessing they could simply ignore the drive bit in the drive/head register > or be unaware of the SPSYNC/CSEL line that, if not used for > spindle syncronization, can provide an inter drive communication about > which is slave & which is master. > Just guessing though; if you have a more clear understanding, it > would be appreciated. > > HulI do not know the specific details. I have tried this as a master and as a slave with hard drives and it did not work. By them selves it worked in the master slot only. hamilton
