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 : > > 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 > > -- > > http://www.piclist.com PIC/SX FAQ & list archive View/change > > your membership options at > > http://mailman.mit.edu/mailman/listinfo/piclist > > > > > > > > > -- > http://www.piclist.com PIC/SX FAQ & list archive > View/change your membership options at > http://mailman.mit.edu/mailman/listinfo/piclist > -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist