I have the HP-IB AMIGO command set mostly implemented on the PET. I still need to complete the DSAVE and DLOAD routines. It looks as though the Commodore drives get very unhappy when using the parallel poll though. I know what I have so far needs deeper debugging but I am able to read/write to 3.5" floppies and the 15MB HD in my HP-IB drive. I have a SS/80 drive and the command set information. If I ever get around to finishing the AMIGO command set I'll start working on it. ;) -Matt On Sun, Jan 3, 2010 at 10:52 AM, "André Fachat" <email@example.com> wrote: > > > > Since IEEE-488 is dependent upon hand shaking it should work fine. > > > > Yes, IEEE488 relies on handshaking and the VIA whose timer is used for > timeout is still clocked at 1MHz. > > However, I had already experimented with a 2Mhz PET version (clocking my > selfbuilt computer with a Fat40 ROM at 2MHz) but it did not work (even > though I modified the timeout values). > > I have also implemented IEEE488 on a number of occasions, and with the > commodore bus it never was that simple as it should have been. > > So yes, it will probably work - but without test I don't know. > > Now the three alternatives I have: > 1) fix my lpt-ieee488 interface - a mess of wires on breadboard... > 2) simply us a real 4040 or 8250 drive which would involve taking the > drives down from the attic > 3) build an ATMEL based lpt-ieee488 replacement, using USB instead of the > printer port... > > André > > -- > GRATIS für alle GMX-Mitglieder: Die maxdome Movie-FLAT! > Jetzt freischalten unter http://portal.gmx.net/de/go/maxdome01 > > Message was sent through the cbm-hackers mailing list > Message was sent through the cbm-hackers mailing listReceived on 2010-01-03 18:00:03
Archive generated by hypermail 2.2.0.