Hello Guys i want to make a simple 4 bit adder but the Logicprobe doesn't generate the signal for me am i doing something wrong
Thank you in advance !

 

hi Angel,
Welcome to AAC.
Is this a Homework assignment.?

E

 

Hello,

When no input is given, the simulator does not know what to do.
All inputs are now unknown.

Bertus

 

Thank you guys for the reply it is a homework assignment
how can i assign the input please

 

Hello,

Wich software do you use?
In the manual should be given how to set input values.

Bertus

 

Proteus 8 it was working fine yesterday

 

Proteus 8 it was working fine yesterday

Im certain proteus is still working fine today as well,

whats the manual say about setting inputs

 

Hello,

Are you using the correct inputs?
This snapshot of a youtube tutorial shows other simbols at the inputs:

On the inputs, you can toggle the values on the small ball near the input label.

Bertus