Synthesis question

Not if state and next state are register outputs.

-- Mike Treseler

Oh ok. Next state is not a registered output. The state machine is a 2 process state machine ie the clocked process registers state from next state, and the next state process is a combinatorial process.

Can you help me to understand the problem and what has been synthesised?

Thanks

Consider posting (part of) your code. It's easier to see what you do and to explain what is going on.

Jan

if you have a combinational process like:

always @(state or [some control inputs] ) begin case (state) state1 : state = blablabla; endcase end

the synthesis tool will never extract a register you should sample the state in a separate process. post a part of your code, this would be more clear.

Vladislav

Consider using a single process.

-- Mike Treseler