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1、1,Reason for not to use “Constraint Manager Enabled Flow” and When “Constraint Manager Enabled Flow” is started ? Compare “Traditional Flow” with “Constraint Manager Enabled Flow” How to change “Constraint Manager Enabled Flow” back to Traditional Flow ? And important Note.,Content :,2,Reason: If yo
2、u use “Constraint Manager Enabled Flow” in Concept-HDL, it will make Allegro constraint data empty or error. When “Constraint Manager Enabled Flow” is started ? Dont press “ToolConstraintsEdit or Update Schematic“ Function in Concept-HDL. It will lead to “Constraint Manager Enabled Flow” started.,3,
3、2. Dont select “Extract Constraints” when you import Physical data (Backannotate from layout) in Concept-HDL. It will also lead to “Constraint Manager Enabled Flow” started.,Dont select this item,4,If you have Started “Constraints Manager Enable Flow”, the following actions happened. “constraints” d
4、irectory will be created under project_directoryworklibdesign_directory, as shown 1. UI of “Export Physical” will be changed, as shown 2.,5,Traditional Flow,Constraint Manager Enabled Flow,Compare “Traditional Flow” with “Constraint Manager Enabled Flow”,Traditional Flow,Constraint Flow,Export Physi
5、cal,Output files:,Output files:,For Concept tool :,6,Compare “Traditional Flow” with “Constraint Manager Enabled Flow”,In “Import Logic” function can see the difference between Traditional and Constraint Flow.,Constraint Manager Enabled Flow,Traditional Flow,For Allegro tool :,7,How to change “Const
6、raint Manager Enabled Flow” back to Traditional Flow ?,Solution : Delete “constraints” ,”packaged” and “physical” directory.,Delete them,Very important Note: If layout board has ever been imported files of “constraint manager Enabled Flow” like below, brd file will keep it as a “constraint manager Enabled Flow”. So at that time. Your design also need to keep the same flow too, Because Allegro tool will always request 5 files.,Be Careful ,-,