Continue to Site

Welcome to EDAboard.com

Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.

Register Log in

Logic contention(s) detected on net

Status
Not open for further replies.
A

Ashkan2200

Newbie level 2
Joined
Nov 28, 2017
Messages
2
Helped
0
Reputation
0
Reaction score
0
Trophy points
1
Activity points
15
hi
i'm new with proteus and have 74191 and 74154 ICs and i want to connect 74191 output to 74154 input but i get 4 errors about "Logic contention(s) detected on net "
please help me

Here us a Picture:

Proteus.jpg
 
Last edited by a moderator:

The simulator may have trouble finding initial output states of your second IC (although you would not get such an error in hardware). Try experimenting with pullup/down resistors at the inputs.

Also try putting led's on the outputs of the first IC. This will tell you if the simulator can create stable states at powerup, then behave in the expected manner as it continues to run.
 

hi
i did what you said but i wasn't able to fix it , pls can i send you the file and you take a look at it?
 

OUT/INP directions may be erroneous.
Just a guess
 

Ashkan2200 said:
hi
i did what you said but i wasn't able to fix it , pls can i send you the file and you take a look at it?
Click to expand...

Sorry I have no experience with Proteus. All I can recommend is for you to get each IC working by itself alone. Later you can connect them.
 

Status
Not open for further replies.

Similar threads

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Back
Top