From: Gideon Zweijtzer (gideonz_at_dds.nl)
Date: 2005-08-18 15:05:45
> >> I just did some googleing and I found the following: Infineon > >> TLE4945-2G. I don't know how expensive this device is, but > it gives a > >> digial output signal, probably just what you need. You can easily > >> find > >> the datasheet and see how to connect it, at www.infineon.com > >> > >> Gideon > >> > > > > A digital output signal is just what I *don't* need, because I have > > to yet > > replace a photo-transistor, (or was it a photo-diode), remember? > > Are you sure you *don't* want the digital signal? I would be very > much surprised if there was some analogue circuitry involved behind > the index hole sensor in your drive... Please recheck this or... you > may just lack enough background and are mixing the ideas. True. I have implemented a PC compatible Floppy Disk Controller in VHDL once and the index pulse is certainly digital only. It is just used as a trigger to start writing the sectors on a track (in a PC environment). I am not sure how commodore floppies are formatted, but it could very well be that the index pulse is used in a similar way. In any case, the index pulse is 100% digital. Gideon Message was sent through the cbm-hackers mailing list
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