www.logiccircuit.org

This is because race conditions in your circuit. If you add some delay it works just as expected.

I see now what your problem is. Can you please share a broader task you solving? Why do you need the two directional circuit? May be there is another solution to it? Or maybe I need to extend tri-state buffer logic to accommodate tasks like yours?

Yes this will work faster. To check this you can run your circuit on maximum speed and observe real frequency. In the attachment I’ve created two test circuits one is using your counter the other is regular counter. You can switch to ROM Test and Regular Test, run them and see the actual frequency o...

No problem, I’ve deleted the second one. Your very first post needs to be approved by moderator. Once you have it approved all the other posts will be visible right away. Usually you use tri state buffers to control bus. All the devices connected to bus are usually should be disconnected i.e. try st...

It probably should not work on mono as it is WPF based and mono doesn’t support it.

Well, you can try to use buttons with toggle checked as a control of parking place – if it is taken or free. To display state of parking lot you just use inverted state of such button and display it with LED or show all of them with LED matrix. Your indicator of two adjacent places is a conjunction ...

Do you have any enhancements of this project yet?

Try to look at these images: https://www.google.com/search?q=serial+adder-subtractor+circuit&tbm=isch&tbo=u&source=univ&sa=X&ei=mS_pUsjHIIPZoAShsoDoBQ&ved=0CC4QsAQ&biw=1330&bih=1053 As one example you can download a sample circuit Digital Clock: http://logiccircuit.co...

What you need is BCD adder. Here is a couple of links that google will give you: http://en.wikipedia.org/wiki/Binary-coded_decimal http://electronicsinourhands.blogspot.com/2012/10/bcd-adder.html http://tams-www.informatik.uni-hamburg.de/applets/hades/webdemos/20-arithmetic/10-adders/bcd-adder.html ...

Hello, Thanks for using the program. Usually when you have correct circuit and when buttons connected to LEDs you should be able click the button and see LED reacting. You can try to read manual. Please start with: http://www.logiccircuit.org/edit.html if you still having any problems please upload ...