Thanks for the info, but I'd rather get the originally posted scheme to
work, so the questions still remain :)

Best regards,

Jan


2007/4/2, pic@harry-arends.nl <pic@harry-arends.nl>:
>
> Then look at
> http://www.merg.info/resources/dcc.htm#Filesfordownloading
>
> > -----Oorspronkelijk bericht-----
> > Van: piclist-bounces@mit.edu [mailto:piclist-bounces@mit.edu]
> > Namens Jan van Dijk
> > Verzonden: maandag 2 april 2007 12:32
> > Aan: Microcontroller discussion list - Public.
> > Onderwerp: Re: [PIC] Converting 16F84 DCC decoder to 16F628
> > (or 16F648)
> >
> > Hello Harry,
> >
> > Thanks for your fast reply. A lot of DCC decoders are
> > available at the web, and I choose the one I mentioned
> > because of the simplicity of the design.
> > If the current design doesn't work out, I might check out
> > that merg club...
> > although I generally prefer free available schemes above
> > restricted schemes...
> >
> > Best regards,
> >
> > Jan
> >
> >
> > 2007/4/2, pic@harry-arends.nl <pic@harry-arends.nl>:
> > >
> > > Hi Jan,
> > >
> > > Have a look at http://www.merg.info/kits.htm . They have
> > more uptodate
> > > information on building your own DCC decoder. Even kits are
> > available
> > > and ASM files as well using the 16F628.
> > >
> > > Regards
> > >
> > > Harry (MERG member)
> > >
> > > > -----Oorspronkelijk bericht-----
> > > > Van: piclist-bounces@mit.edu
> > [mailto:piclist-bounces@mit.edu] Namens
> > > > Jan van Dijk
> > > > Verzonden: maandag 2 april 2007 11:37
> > > > Aan: piclist@mit.edu
> > > > Onderwerp: [PIC] Converting 16F84 DCC decoder to 16F628
> > (or 16F648)
> > > >
> > > > Hello all,
> > > >
> > > > I'm currently in the process of constructing a dcc decoder for
> > > > controlling a LGB train. I've found the scheme for a dcc
> > decoder at
> > > > http://technology.niagarac.on.ca/staff/mcsele/dcc.htm It's based
> > > > upon a
> > > > 16F84 and the assembly code is also available:
> > > > http://technology.niagarac.on.ca/staff/mcsele/decoder.asm
> > > > Since the 16F84 is 'obsolete' I was planning on using an
> > > > 16F628 for the decoder... Would it work if I just re-compiled the
> > > > given assembly source to the 16F628 chip? Any special things I
> > > > should look in to when converting the program?
> > > >
> > > > Also, the original scheme is based on a 8MHz crystal. I'm
> > planning
> > > > on using a 20 MHz one... if I changed the rtcc divider from 32 to
> > > > 80, would that do the trick?
> > > >
> > > > Of course, the best way to find out, it to actually build
> > / programm
> > > > the chip, but I don't have all the parts yet, and thought I would
> > > > inquire so I might save me some troubles :)
> > > >
> > > > Best regards and thanks in advance,
> > > >
> > > > Jan
> > > > --
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> > > >
> > > >
> > >
> > >
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