>> Well, I cranked the speed down to around -6ms to slow (I assume that's >> milliseconds per revolution) and it appears to format more - it got to >> around track 20 before barfing. > Hmm - so drive speed affects the problem. Possibly. The jury is still out on that one as it will occasionaly format a few tracks even at the correct speed. > It couldn't be anything as silly as the test program not working > correctly on 50Hz mains?? (I can't see that the drive would have any > internal reference to mains frequency - the only CBM machine I know > that can do that is the C64) > Does the drive have a strobe disk on the spindle? Nope. The drive electronics are DC only - no 50hz source. There is a strobe disk. Making a cheap strobe light is stilll on the tp-do list. Unfortunately I don't have a working scope at the moment. > Very weird. I've a full dance card right now (don't we all) - but I'd > love to have a look at the ROM, and determine the formatting code on > the drive.. I'm sure there roms exist on the 'net. Right. I can see this becoming a 'mission' for me and an annoyance for my wife in the next week as I should be doing other things to prep for xmas. :-) Rob Message was sent through the cbm-hackers mailing listReceived on 2012-12-02 00:00:05
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