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Hi! I am third year student in Electronics and I am trying to use this program for a project as a part of Digital Schematics Design course. There are some things that i do not understand, I hope my questions are not too silly.
1. What is the default state of inputs that are not connected to anything? For example you have some multi-input ANDs in the 4-7 circuit that have an input not connected.
2. Why do you need two sets and two resets in the RS trigger? In the JK not all of them are used.
I tried to make some triggers from primitives, but i must be doing something wrong, because they are not working. The logic is all by the book, however i am not sure how the buttons (toggle and otherwise) work. My JK trigger gives the oscillation error when i set both inputs to "1" instead of just toggling the state as expected.
Please help!

Hi,
Here are answers to your questions:
Unconnected pin should not affect output of the gate. So for AND gate it is equivalent to 1 while for OR it is 0.
I assume you are referring to flip-flop from sample digital clock circuit. It was just convenient for me to have RS with two inputs you can easily create your own RS flip-flop with one input.
For your not working circuit please create a separate topic and upload you project in this topic I’ll try to figure out what is wrong and help you.
Thanks,
Eugene

can i talk about logisim here?i did not find a nice forum for that(did find a lot of unnice ones tho)

You can, but this forum is for logic circuit.

Are external links allowed?My files are on replit.com (replit is trusty,not malware)