Hello all,
Knowing myself, I'm probably missing something simple and stupid but cant see it.
I'm trying to build a freq divider from 1 MHz to 25 Hz. Simulation works fine, everything is good to go.
Trying it out on board is different story.
Frequency going in is fine, CD4020 works fine. problem now is with gates.
From the simulation, once gate D is active (high output), it should reset the counter, but it does not.
All it does is pull down the signal to 0V and keeps on counting. On o-scope output of D gate is always flat. I know the signal would be instant and very short, but I'm not seeing anything...
Knowing myself, I'm probably missing something simple and stupid but cant see it.
I'm trying to build a freq divider from 1 MHz to 25 Hz. Simulation works fine, everything is good to go.
Trying it out on board is different story.
Frequency going in is fine, CD4020 works fine. problem now is with gates.
From the simulation, once gate D is active (high output), it should reset the counter, but it does not.
All it does is pull down the signal to 0V and keeps on counting. On o-scope output of D gate is always flat. I know the signal would be instant and very short, but I'm not seeing anything...