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Case Statement understood as FSM

oshouman oshouman is offline
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Join Date: Jun 2007
Posts: 6
Dear all,

I do not have much experience with VHDL and synthesis, but I am starting to get some.

I am using Precision RTL synthesis and I am trying to synthesize a design of a state machine. The problem I face is that I have a case statement in each state of the machine and the software detects the "sub" case statement as another state machine, why is that? What can I do to avoid it? I am using an inner case statement to make things easier instead of evaluating conditions several times. In other words, I evaluate the conditions in the initial state, then assign a certain value to a signal and then check this signal in the coming states of the machine.

I do not know if this is a good "VHDL" coding practice but I am just migrating from the programming world and I am having a bad time with VHDL.

Thank you very much.
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