Hi, I have not done this mod but I'm wondering which version of 1541 did you use? Is it possible that the "patched" rom is for a different rom pair? I can't see any reference to which is the correct part# for the ROM that doesn't require changing. Did you use the ROM from the MASHUP site or did you run the patch routine on your existing ROM? Steve >________________________________ > From: Giovi <stravaccato68@yahoo.it> >To: cbm-hackers@musoftware.de >Sent: Thursday, September 19, 2013 3:42:38 PM >Subject: > > >Hi folks! > >my name is Giovi (Giovanni Verrua), italian, C= collector, I live in Brazil >and I'm new to this list. >As Ruud Baltissen (that should receive this post, if I'm right...hi Ruud!) >already discovered, I'm not an hardware expert; dummy should be most the >correct word :) so I apologize if my further posts will be silly in some >way. I also apologize if I will do some mistakes posting to this mailing >list. Don't be shy, correct me whenever is needed! > >My first question to this list is about the 1541 drive modified for the >IEEE-488 interface (in other words, about connecting a 1541 to a PET), this >one: >http://www.zimmers.net/anonftp/pub/cbm/documents/projects/ieee-488/index.html >also described at this page: >http://vintagemashups.net/2010/12/commodore-1541-ieee-488-conversion/,where >I downloaded the patched ROM. > >I'm writing this post because, of course, mine doesn't work :) - I checked >it twice and I haven't found (yet) the mistake. I will check it again. No >answer from the 1541 and no reset when the 8032-sk is switched on or off. > >I'm sure that: >- the 1541 drive is ok >- the 6522 is ok >- the socket adapter is ok >- the EPROM im programmed returns no difference if compared with the patched >rom image (so I believe it's ok too) >- the ieee cable an connectors are ok >- the ieee-488 port of the 8032 is ok since it works fine with the Petdisk >(from bitfixer.com). > > >>>> The question for you: >>> I have a little doubt about the patched ROM: >>>> it's showing a different behavior respect the original 901229-05 ROM. > >- with the original ROM, as usual, the floppy starts to spin and the red >light comes on; after few seconds, the light and the spin motor go off in >the same moment. Normal behavior for this kind of drive. > >- with the patched ROM (with or without the ieee interface) the floppy just >spins for a while and then stops, while the red light stays on for a longer >time (and then goes off). > >Anybody of you C=hackers made this adapter in the past, and can tell me at >least if the patched ROM shows this different behavior? > >cheers, >Giovi > > > > Message was sent through the cbm-hackers mailing list > > > Message was sent through the cbm-hackers mailing listReceived on 2013-09-19 21:00:04
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