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Hi all,
I compiled my codes in Quartus 9.1 and Quartus 10.1, on my laptop and one lab PC. And the codes run on my laptop in Quartus 9.1 was compiled pretty smoothly. But for the same codes run on the lab PC in Quartus 10.1, it takes like forever and just get stuck in 2% progress. I'm wondering is there any bugs with that? I changed another PC in the lab with version 10.1, and it's still the same condition... If anyone can help, appreciate it a lot.
module statemachine(Y,reset,clock,X);
// Input Port(s)
input Y;
input reset;
input clock;
// Output Port(s)
output X;
reg state,nextstate;
reg X;
parameter state0=0;
parameter state1=1;
always@(*)
case(state)
state0:begin
X=0;
nextstate=(~Y)?state1:state0;
end
state1:begin
X=1;
nextstate=(Y)?state0:state1;
end
// if(state==state0)
// X=0;
// else if(state==state1)
// X=1;
// if(state==state0)
// if(~Y)
// nextstate=state1;
// if(state==state1)
// if(Y)
// nextstate=state0;
endcase
always@(posedge clock ,negedge reset)
begin
if(~reset)
state<=state0;
else
state<=nextstate;
end
// Additional Module Item(s)
endmodule
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I was curious and run your project on my quartus 10.1 and it compiled successfuly.
It can be incomplete quartus installation - did you install DEVICES? If you installed not all devices check if you use the proper device.- Als neu kennzeichnen
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Curiously, the "state machine" reduces to a single DFF. One should expect, that Quartus is able to keep with it. Does the problem occur, when compiling exactly this code? Or only, when it's embedded in a hierarchy? In the latter case, the other code may be important.
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If it's a two-state statemachine, it's reduced to a DFF.

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