Specifications

CHAPTER 13: ENGINEERING CHANGE MANAGEMENT
VIEWING & MANAGING CHANGES WITH THE CHANGE MANAGER
220 ■ INTRODUCTION TO QUARTUS II ALTERA CORPORATION
The log view of the Change Manager displays the following information for
each ECO change:
■ Index
■ Node Name
■ Change Type
■ Old Value
■ Target Value
■ Current Value
■ Disk Value
■ Comments (your comments about the ECO change)
Green shading in the Current Value column indicates that the changes have
been applied to the current value. Blue shading in the Disk Value column
indicates that the changes have been saved successfully to disk.
After you have committed the changes you want, you should choose
Check & Save All Netlist Changes (right button pop-up menu) to check the
legality of the change for all of the other resources in the netlist. You can then
perform the following actions on the ECO changes in the list by using
commands from the right button pop-up menu:
■ Apply Target Value to Preceding & Current Changes
■ Restore Old Value to Current & Subsequent Changes
■ Delete Current & Subsequent Changes
■ Export Preceding & Current Changes As
■ Export All Changes
When you choose one of the commands for exporting, you have the choice
of saving the exported data as a Tcl Script File (.tcl), which is a sequence of
Chip Editor Tcl commands that can be sourced back into the Quartus II
software to reproduce a set of changes if the Change Manager log has been
lost or corrupted. You can also save a Comma- Separated Values File (.csv)
or a Text File (.txt)—these files contain tabular representations of the data for
documentation purposes.