[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

RE: [N8VEM-S100:6291] An updated (V3) version of our Dual IDE/CF card S100 bus board

Roger, I know this is not what you want to hear, but right now I cannot get back to the IDE board code. I’m stuck with some heavy lifting hardware (80486 board).
With help from the two Dave’s and Ian we are doing a V3 IDE board that hopefully will be the last board in that series – improving on some high speed CPU issues.


When  final board is done, at that time I will go back to the software for the board I wrote now some years ago.  It definitely needs some upgrades.  None the least of which is cleaning up the sector holes problem and the wait routine.   Hopefully I could get an easier beginner install approach going. 


What I don’t quite understand is that others (myself included),  do not have the sector problem you have.  Could somebody out there confirm the MYIDE program on the bottom of this web page  http://s100computers.com/My%20System%20Pages/IDE%20Board/My%20IDE%20Card.htm works for them.  





From: n8vem...@googlegroups.com [mailto:n8vem...@googlegroups.com]
Sent: Wednesday, February 11, 2015 9:28 AM
To: n8vem...@googlegroups.com
Subject: Re: [N8VEM-S100:6291] An updated (V3) version of our Dual IDE/CF card S100 bus board


Hi John,


>> Roger what you have below has all the hallmarks of the MYIDE sector reading/writing being different to that of
>> your CPM BIOS.  I had that, way back.  Do you have a floppy in your system. If so boot CPM from that and era
>> A:*.*   Then PIP things across. A text file first. See that you can first read it from your floppy based CPM.  Then
>> see if you can do so with MYIDE.

Of course, I'd be the first to admit that the code could be buggy, BUT .... the bad behavior extends to MYIDE as well.  The MYIDE code I'm using is what I downloaded from the Web site, except I had to change the port addresses, and I made the mods. to the wait-for routines that Rich (I think it was him?) suggested.  I've described what happens before, but basically the content of the sectors is offset by one, i.e. I see the content of sector 2 when I try to read LBA 0 (sector 1).  I think that I also had trouble with "writing" a sector, only to find that the sector contents didn't change.


>> Yes I will add “A” & “B” on the Silkscreen. Good suggestion.





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 n8vem-s100+...@googlegroups.com.
For more options, visit https://groups.google.com/d/optout.