Why does Qsys Component Editor not save parameter changes made to my custom component? - Why does Qsys Component Editor not save parameter changes made to my custom component? Description Due to a problem in the Quartus ® II software version 12.1 and later, the Qsys Component Editor may not save parameter changes made to custom components. Resolution To work around this issue open the <component name>_hw.tcl file in a text editor, and change the parameter manually. This problem has been fixed for the Quartus II software version 12.1 SP1 and later. Custom Fields values: ['novalue'] Troubleshooting novalue False ['novalue'] ['FPGA Dev Tools Quartus II Software'] 12.1.1 12.1 ['Programmable Logic Devices'] ['novalue'] ['novalue'] ['novalue']