Ok, armed with the correct schematic... O34,0 lights D18/Select Drive A O34,1 lights D19/Select Drive B
MyIDE flashes D18A for a brief moment, then lights D19/B. At that point the program "thinks" it's accessing "A" but remains on the P40/left CF disk. - Gary On Saturday, May 10, 2014 9:26:34 AM UTC-4, David Fry wrote: > > Hi Gary, > > I'll try to go through this in a step by step logical fashion. > I had problems when I first brought my version 02 card up because the > schematic didn't match the screenprint and board behaviour, it turned out > that this was purely a schematic labelling issue and so the schematic was > corrected in KiCad but because some 'net' labels had their names changed > KiCad forced a re-route of the board, hence v02a. > Let me first say that the changes were purely label changes within the > schematic not connectivity related i.e Pin 8 of U18C still goes to P40 pin > 25, and pin 11 of U18D still goes to P41 pin 25 etc... > > Let's first try to establish correct drive labelling and selection, so here > goes, > > The correct schematic for IDE ver02a should be dated 23rd March 2014 in > the bottom right corner of the drawing. the one you have downloaded from > John's website is one of the intermediate diagrams where some labels are > still wrong. I have let John know and I'm sure he will correct this. > > Referring to the diagrams in KiCad as uploaded by Andrew (S100 > IDE-002.ZIP) not sure if you have KiCad loaded ?? > From left to right on the PCB your LEDs should be screenprint labelled D20 > (Activity B), D21 (Activity A), D19 (Select B), D18 (Select A) > The CF slots themselves match this pattern, P40 (Left Connector) is Drive > B, and P41 (Right Connector) is Drive A > > Now using your CPU monitor output the following values to ports, can you > confirm the following is true (this assumes you are using the default port > settings) > > QO34,0 (D18 should be lit indicating Drive A) > QO34,1 (D19 should be lit indicating Drive B) > > Regards > > David Fry > > On Tuesday, March 18, 2014 10:27:41 PM UTC, Edward Snider wrote: > >> Hi everybody, >> >> I'd like to do a board distribution project of Dual CF-Card/Hard Disk >> IDE S-100 >> Boards<http://s100computers.com/My%20System%20Pages/IDE%20Board/My%20IDE%20Card.htm> >> . >> >> Is anyone interested in getting one or more of these? >> >> Just post here and I'll get a list started. >> >> Thanks, >> >> Ed >> >> -- 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.
