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Run GofCall in GUI mode
In GofViewer window, click Menu Commands->'Launch GofCall Script Interface'
GofCall interactive window appears.
In the "GOF >" entry, key in GofCall APIs to browser the netlist. For example, key in 'get_cells("*")' and press return, the instances in the current top level are displayed.
Key in "run eco1.pl" to run ECO script in batch mode. eco1.pl has content of
change_pin("u_abc/u0/A", "AOI21X2", "u_abc/new_eco_inst", "frpls2qcif,beat4flg,lnstaddr_e_3_");
You can verify if the ECO has been done correctly be launch schematic in ECO mode.
Key in "sch u_abc/u0" and return. The schematic window pops up for tracing.
All the marked items are created by the one ECO line
change_pin("u_abc/u0/A", "AOI21X2", "u_abc/new_eco_inst",