On 3/1/2016 8:40 AM, silverdr@wfmh.org.pl wrote: >> On 2016-03-01, at 15:22, Michał Pleban <lists@michau.name> wrote: >> >> Hello! >> >> Michał Pleban wrote: >> >>> I started a project to re-create the 1565 external floppy for the >>> Commodore 65. The floppy is supposed to be attached to the computer via >>> a mini-DIN8 cable. >>> So I purchased a cable and stuck it into the floppy port of the computer >>> (of course I had to solder a mini-DIN8 connector there first). The >>> internal floppy stopped working. When I remove the cable, the floppy >>> works again. Hmm. >> Update: I connected the actual floppy drive to the cable and it still >> does not work. Even with a 30 cm cable disk reads are extremely flaky, >> from both the internal and external drive. So it is not a problem of >> termination, and the fact that it exhibits itself on both drives means >> that it's not a problem of the drive either. I suspect now two things: >> (a) the disk controller in the C65 is broken (which would be strange >> since it works on Bo's C65) or (b) maybe I did something wrong when >> soldering the DIN8 connector. I think I need to open the computer again >> and resolder the connector to see if it changes anything. Can I ask what rom you are using? This is hardly scientific, and I have no theory as to why it even might be so, but when I upgraded my 65 to 911001, the reliability of both my drives seemed to improve. It could all have been previously loose cables, or maybe just all-in-my-head, but, well, it can't hurt, right? - Bo > Obviously I can't check this myself ;-) but if there are any EMI filtering elements on the signal's way out, those can be sometimes causing similar problems to what you describe. > Message was sent through the cbm-hackers mailing listReceived on 2016-03-02 04:00:11
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