IP Index File (.ipx)

An XML file whose top-level element is <library>. The two legal subelements are <path> and <component>. Each .ipx file indexes a collection of available IP cores. This file specifies the relative path of directories to search for IP cores. In general, .ipx files facilitate faster searches. The Quartus^® Prime software searches some directories recursively and other directories only to a specific depth. When the search is recursive, the search stops at any directory that contains a _hw.tcl or .ipx file. In the following list of search locations, ** indicates a recursive descent:

• $$PROJECT_DIR/*
• $$PROJECT_DIR/ip/**/*