Hi John, yes, sure. Gary, I need to establish a few things first, if you could address each point it will help speed up what is going on. 1) When the S100-IDE card initialises which led's light up D18 or D19 (any others) 2) which CF card socket do you think is Slot A 3) what is the date on the schematic you are using to come to this conclusion. 4) what CPU card are you using regards David Fry
On Saturday, May 10, 2014 7:14:47 AM UTC+1, monahanz wrote: > David you were the one that brought up that IDE drive “A” & “B” > labeling etc. on that V2 to V2a board. Do you have time to look into it. > Do you have a V2a board. > > John > > > > > > *From:* [email protected] <javascript:> > [mailto:[email protected]<javascript:>] > > *Sent:* Friday, May 9, 2014 9:45 PM > *To:* [email protected] <javascript:> > *Cc:* [email protected] <javascript:> > *Subject:* Re: [N8VEM-S100:3592] Re: Run of Dual CF-Card/Hard Disk IDE > S-100 Boards > > > > It's the V2a board that Ed just mailed out this week. > > I've also tried decreasing the pull up resistors on the 7403's to 330 ohm. > > I noticed that David Fry has suggested using a 74S03 in his notes, > unfortunately I don't have any here to try. > > - Gary > > On Saturday, May 10, 2014 12:36:15 AM UTC-4, monahanz wrote: > > Is this the older V2 board or the newer V2a board > > John > > > > > > > > *From:* [email protected] [mailto:[email protected]] *On > Behalf Of *[email protected] > *Sent:* Friday, May 9, 2014 9:24 PM > *To:* [email protected] > *Subject:* [N8VEM-S100:3592] Re: Run of Dual CF-Card/Hard Disk IDE S-100 > Boards > > > > Assembled a dual IDE board this evening, and am having an interesting > problem. > > I'm using 2 Syba IDE-->CF cards with 128mb CF Flash (have also tried some > 4mb Kingston types). > > If I output directly to ports I can control the hex display and select > drive "A" or "B", although the "A" and "B" drive LED's seem reversed. > > Using MYIDE.COM it will only initialize if both drives are present, and > then I can't select drive "B" from the program. It will access and format > drive "A" just fine. > > I've tried swapping 74LS03's out, and changing them to 7403, 74LS38 and > 7438 types with no improvement. I've also swapped out every other chip on > the board, and resoldered everything. > > Any ideas of where to look? > > - Gary > > -- > You received this message because you are subscribed to the Google Groups > "N8VEM-S100" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > For more options, visit https://groups.google.com/d/optout. > -- You received this message because you are subscribed to the Google Groups "N8VEM-S100" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
