MagerValp wrote: > Hi, > I just received a replacement 6525 so now I have a working IEEE-488 > interface. I have a few questions that I hope someone could answer: > > Is it possible to use IEC devices together with IEEE devices? The 1541 > on device 8 and the 1581 on device 9 just give me a device not present > error. Currently there's nothing plugged into the IEEE interface since > I haven't soldered a cable yet. > > There's an 8K ROM in the interface that I'd like to read out, but it > gets swapped out. How do I swap it in? One of the 6525 registers at > $dfxx i guess, but which one? If you have an original CBM IEEE488 interface, you can use my new kernal. But I have the EXROM/GAME lines disconnected from the module.... :-) The schematics is on my homepage and the kernal used is on http://www.tu-chemnitz.de/~fachat/8bit/c64/kernal/index.html You can map any of the drives to either serial or parallel IEC bus. The Software copies itself from the ROM area to $C*** (pretty unusable...) and then swaps out the ROM. However, I have not documented the ROM switch, but it should be easy to find out from the module with a beeper... hope it helps Andre -- Email address may be invalid. Use "fachat AT physik DOT tu-chemnitz DOT de" ------Fight SPAM - join CAUCE http://www.cauce.org------Thanks, spammers... Andre Fachat, Institute of physics, Technische Universität Chemnitz, FRG http://www.tu-chemnitz.de/~fachat - This message was sent through the cbm-hackers mailing list. To unsubscribe: echo unsubscribe | mail cbm-hackers-request@dot.tcm.hut.fi.
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