Hi Nathan! That sounds interesting! I'm not sure the code is the problem, the logic is quite clear, it's probably more about getting the timings right. With 20MHz timing would be much more accurate. But the more working examples the better, if you have time, the community (at least me.. ;)) would appreciate it! Was this used on long cables as well?
Johan On Apr 9, 2012, at 22:58 , owfs-developers-requ...@lists.sourceforge.net wrote: > Date: Mon, 9 Apr 2012 13:22:40 -0600 (MDT) > From: Nathan Holmes <maver...@drgw.net> > Subject: Re: [Owfs-developers] CPU based slaves > To: "OWFS (One-wire file system) discussion and help" > <owfs-developers@lists.sourceforge.net> > Message-ID: <alpine.lrh.2.02.1204091318400.25...@minturn.drgw.net> > Content-Type: text/plain; charset="iso-8859-15" > > On Mon, 9 Apr 2012, Johan Str?m wrote: >> Does anyone have any success stories involving CPU-based slaves and "real" >> networks, and if so, on what platforms (and what clock speeds)? > > Many years ago (as in almost a decade now), several of us out here > implemented a slave on a PIC16F628 to interface a Sensirion SHT75 with > 1-wire. We kept fairly quiet about it, as at that point Maxim/Dallas > wasn't being overly friendly towards non-licensed slaves (and one of us > doing the implementing was a design engineer for Maxim). It was almost > certainly clocked at 20MHz, just because that's what we were using on > everything else at the time. > > I can't promise I still have the source code, but I'll dig around and see > if you're curious. It's written in PIC assembler however, so it would be > almost useless if you're trying to implement on an AVR. > > -- > -------------------------------------------------------------------------- > Nathan D. Holmes maver...@drgw.net > http://www.drgw.net Colorado Springs, CO > -------------------------------------------------------------------------- ------------------------------------------------------------------------------ For Developers, A Lot Can Happen In A Second. Boundary is the first to Know...and Tell You. Monitor Your Applications in Ultra-Fine Resolution. Try it FREE! http://p.sf.net/sfu/Boundary-d2dvs2 _______________________________________________ Owfs-developers mailing list Owfs-developers@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/owfs-developers
