Verilog: blocking & Non-Blocking

[kumar_eee]

verilog non block

What is the diff b/w blocking & Non-bolcking statements?... Where v r using these types?..

 

[aho1363]

In Non-Blocking mode all command,(statement) in block run parallely (all lines Begin to run at same instance)But in Blocking mode line running step by step.(line 2 in this block will run after finishing first line functionality and so on...)
[/i]

 

[kumar_eee]

O.k....

c<=#10 a+b;
c= #10 a+b;

Both r same or not?....

 

[no_mad]

hi kumar_ee,

Below is a website from Sunburst Design:
http://www.sunburst-design.com/papers/

Here u can find very good articles was written by Cliff Cummings. One of it is "Verilog Nonblocking Assignments With Delays, Myths & Mysteries".

Hope it helps n enjoy

-no_mad

 

[gaonkc]

no-block is used for sequential logic . block is used for combinational logic.