[Ktechlab-devel] Bug in D Flip flop component

Fredy Yanardi fyanardi at gmail.com
Sun Sep 11 18:13:51 UTC 2005


Hi David,

Today I discovered a bug in D Flip Flop. It only remembers current D
input, if clock and input are changed simultaneously, then the flip
flop will produce wrong Q output. Simple and obvious case is when you
create a Ring Counter.

I don't know whether this has been fixed or not in the latest svn,
because I try to update my source but it gives me "svn: PROPFIND of
'/ktechlab': could not connect to server
(https://svn.fadedminds.com)". If this hasn't been fixed I've made a
small patch for this. I haven't tested other flip flop types whether
they have same problem or not.

Regards,

Fredy Yanardi
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