Unbelievable. I yanked out the four data wires, (picaxe to 74141), double checked them, and NOW, I get 4,5,6,7!!!! What is going on!? Shane
On Wed, Jul 20, 2011 at 4:48 AM, jb-electronics <webmas...@jb-electronics.de > wrote: > Hi, > > I think the problem can be circled fairly easy: > > Create some sample code that is supposed to have the Nixie tubes read out a > static "12:48" for example. Then check the corresponding BCD inputs on each > chip. If the right number appears there (in BCD format, that is) and the > chip displays a wrong number, then most likely the chip is defective. > > If you realise there are already the wrong numbers on the BCD inputs then > you might want to recheck your wiring and coding. > > It sounds really obvious, sorry for that, but this is the first thing I do > when this happens, and it happens more often than one would actually > presume. One of my favourites was when I had a software-internal bit shift > that made all my numbers about twice as low as intended ;-) I thought it was > a circuit issue. So you might want to check out your software as well. > > Jens > > Am 20.07.2011 11:05, schrieb Terry Kennedy: > > On Jul 20, 1:20 am, Shane Ellis<mime...@gmail.com> wrote: >> >>> It's an IN-14. >>> I have a running version of this exact same circuit, I built into a >>> Christmas ornament, been running perfectly since I powered it on, on >>> December 23rd. I looked at my old files, and this is identical, and >>> still >>> this one is acting buggy. I'll mess with it again tomorrow, and let >>> everyone know what, if anything, I figured out. >>> >> Are using the Soviet K155ID1 decoder / driver? There was a bad batch >> of those which caused all sorts of havoc. It could probably happen in >> the non-Soviet parts, too. >> >> > -- > You received this message because you are subscribed to the Google Groups > "neonixie-l" group. > To post to this group, send an email to neonixie-l@googlegroups.com. > To unsubscribe from this group, send email to neonixie-l+unsubscribe@** > googlegroups.com <neonixie-l%2bunsubscr...@googlegroups.com>. > For more options, visit this group at http://groups.google.com/** > group/neonixie-l?hl=en-GB<http://groups.google.com/group/neonixie-l?hl=en-GB> > . > > -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. To post to this group, send an email to neonixie-l@googlegroups.com. To unsubscribe from this group, send email to neonixie-l+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/neonixie-l?hl=en-GB.
