Answers Database
Simulation function of State Editor does not work
Record #5038
Product Family: Software
Product Line: Aldec
Product Part: Foundation State Editor
Product Version: 1.5
Problem Title:
Simulation function of State Editor does not work
Problem Description:
The simulation function does not work in the current version of the State Editor.
However the documentation (Foundation Help), contains information on it, and
the menu options are still there.
The simulation function in question is where you can stimulate inputs in the simulator,
and watch the state change (one state is highlighted) in the state editor window.
Solution 1:
Fix the State Editor Simulation function or remove all references from the GUI and help
documentation.
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MI from Aldec: A 'Simulation' option in the FSM has several restrictions:
1. A macro has to be created from the fsm and placed on the schematic
2. It is synthesis-tool sensitive because different tools use different signal renaming
methods. This option was implemented for Metamor which converted a signal name
by adding an underscore and a number e.g. Sreg0_0, Sreg0_1 etc.
3. A binary encoding type must be chosen when all the above conditions are met
a current fsm state will be highlighted. The key issue is to find a state variable
(state signals after synthesis) and calculate a current state.
In that case I would suggest to leave this option as it is (it is grayed out when it
cannot be used for some of the above listed reasons). We can also remove it
from the menu since its usefulness is very limited and an Active-VHDL allows
you to simulate an fsm graphically.
End of Record #5038 - Last Modified: 06/14/99 10:25 |
