B
Bart
- Jan 1, 1970
- 0
In my projects with flip flops I notice my led's have tiny off's or on's
that are out of rythm with the function or counting of my circuit. I set my
555 astable to about 1 herz so I can visually watch the sequencing of my
led's and my O'scope shows a very nice clean rythmic square wave. My
circuits are simple with two chips, both dual flip-flops and some led's. Now
I'm trying circuits with counters, for example a 74LS90 and some led's and
I'm noticing the same tiny "flickers" out of rythm. I read about
rising-falling edges as triggers, might this be a factor on what I'm seeing?
Any help is appreciated,
Bart
that are out of rythm with the function or counting of my circuit. I set my
555 astable to about 1 herz so I can visually watch the sequencing of my
led's and my O'scope shows a very nice clean rythmic square wave. My
circuits are simple with two chips, both dual flip-flops and some led's. Now
I'm trying circuits with counters, for example a 74LS90 and some led's and
I'm noticing the same tiny "flickers" out of rythm. I read about
rising-falling edges as triggers, might this be a factor on what I'm seeing?
Any help is appreciated,
Bart