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From: Giorgos Tzampanakis on 20 Feb 2010 23:34
I'm trying to get Quartus to recognize my state machines. I'm
using version 9.0. I tried generating a state machine using the
State Machine Wizard, but after compiling, if I try to look at it
with the State Machine Viewer I get "This design has no State
Machine." I tried to copy the Verilog code from the Help file,
and I still get the same problem.

Is it possible to get Quartus to understand my state machines?
From: Mike Treseler on 21 Feb 2010 12:06
Giorgos Tzampanakis wrote:
> I'm trying to get Quartus to recognize my state machines. I'm
> using version 9.0. I tried generating a state machine using the
> State Machine Wizard, but after compiling, if I try to look at it
> with the State Machine Viewer I get "This design has no State
> Machine." I tried to copy the Verilog code from the Help file,
> and I still get the same problem.

I would look at the RTL view to
see how the code synthesized.

> Is it possible to get Quartus to understand my state machines?

Yes. The Quartus viewer draws a state diagram when
I update an enumeration using a case statement.
Learn vhdl or verilog and get a simulator.

-- Mike Treseler
From: Derek Simmons on 21 Feb 2010 15:57
On Feb 20, 11:34 pm, Giorgos Tzampanakis <g...(a)hw.ac.uk> wrote:
> I'm trying to get Quartus to recognize my state machines. I'm
> using version 9.0. I tried generating a state machine using the
> State Machine Wizard, but after compiling, if I try to look at it
> with the State Machine Viewer I get "This design has no State
> Machine." I tried to copy the Verilog code from the Help file,
> and I still get the same problem.
>
> Is it possible to get Quartus to understand my state machines?

Without seeing the code I'm guessing it was optimized out. Quartus
defaults to one-hot state machines. In settings (someplace) you need
to tell it 'custom' or 'user defined' (I forget which). That might not
be enough, you might also have to associate each state with an output
signal or it might go poof. For small state machines I'll create a
signal and tie it to a pin with an LED.
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