NanDigits Design Automation

Basic Netlist ECO Flow

1. Isolate the working spots by collecting all related nets and gates

2. Add/delete/replace gates, disconnect/connect nets, add/delete ports in GUI mode

3. Or instead of GUI mode, create GofCall ECO script

4. Write out the result and verify the ECO operations

5. Use Logic Equivalent Tool to confirm RTL matching the ECO netlist

6. Debug the failing points
    

Advanced Netlist ECO Flow, part 1, Script programming to modify netlists

1. Why do script programming for netlist?

2. GofCall APIs provide interface with netlist

3. Perl compatible scripts

4. Highly automated process compared with Design Compiler TCL script

Advanced Netlist ECO Flow, part 2, Logic Cone ECO

1. Find out the diff points in ECO netlist and reference netlist

2. Create Logic Cone ECO script

3. Apply the ECO script

Timing closure

1. Fix setup violation

2. Fix hold violation

Power gating implementation and verification

1. What is power gating?

2. What should be done to power down partitions?

3. How to verify power implementation?