1. Home >
  2. Apps >
  3. Groups >

VHDL simulation problem

Question asked by damy7522 in #Coffee Room on Oct 5, 2012
damy7522
damy7522 · Oct 5, 2012
Rank E1 - BEGINNER
In model sim, when I compile a program of d-ff, the output does not match when I change the inputs value with respect to clk edge. It shows the correct output when I change the input, with not respect to clk edge means it works as a latch. I attached a file of simulation when i change the input with respect of clk edge. Here reset is active low and these problems do not occur in verilog, using the same software. So please tell me the solution and explain the difference between (clk='1' and clk'event) and (rising_edge(clk)).

----
Admin Note: I've formatted your post to make it more readable. Please avoid SMS language and long trails of dots between words. Posted in: #Coffee Room
Jeffrey Arulraj
Jeffrey Arulraj · Oct 5, 2012
Rank A2 - PRO
Rising clock edge refers to Positive edge triggered flip flop
[Prototype]
[Prototype] · Aug 30, 2013
Rank B1 - LEADER
Could you please paste your VHDL code snippet.

You must log-in or sign-up to reply to this post.

Click to Log-In or Sign-Up