Forum Discussion
New ContributorModifying and/or hiding interfaces based on component parameters?
After refer to https://docs.altera.com/r/docs/683609/26.1/quartus-prime-pro-edition-user-guide-platform-designer/answers-to-top-faqs
You can do this, but not through ongoing Component Editor edits.
Platform Designer supports parameter-dependent interface visibility via ELABORATION_CALLBACK (see Section 4.7, “Control Interfaces Dynamically with an Elaboration Callback” in the link above).
The expected flow is: create the component once in Component Editor, then manually edit _hw.tcl for callbacks/custom Tcl (Section 4.3). If you reopen that customized component in Component Editor, your custom Tcl is overwritten (Section 4.3 note / 4.3.2).For loading/testing without “New Component”: Platform Designer discovers _hw.tcl from IP search paths during Discovery (Section 4.2). So put your component directory in IP Catalog Search Locations / SEARCH_PATH / user_components.ipx (Sections 2.6.5.1.x and 2.6.5.2), reopen Platform Designer, and instantiate from IP Catalog.
So in short: your approach is valid; use manual _hw.tcl + IP search path discovery, not repeated Component Editor edits.
New ContributorThanks for your comment! I am wondering though, how do you then test the _hw.tcl that you've modified? Other than placing the file in the project directory and restarting Platform Designer such that it is reloaded? Feels like there should be an easier way...
Super ContributorAfter refer to https://docs.altera.com/r/docs/683609/26.1/quartus-prime-pro-edition-user-guide-platform-designer/answers-to-top-faqs
You can do this, but not through ongoing Component Editor edits.
Platform Designer supports parameter-dependent interface visibility via ELABORATION_CALLBACK (see Section 4.7, “Control Interfaces Dynamically with an Elaboration Callback” in the link above).
The expected flow is: create the component once in Component Editor, then manually edit _hw.tcl for callbacks/custom Tcl (Section 4.3). If you reopen that customized component in Component Editor, your custom Tcl is overwritten (Section 4.3 note / 4.3.2).
For loading/testing without “New Component”: Platform Designer discovers _hw.tcl from IP search paths during Discovery (Section 4.2). So put your component directory in IP Catalog Search Locations / SEARCH_PATH / user_components.ipx (Sections 2.6.5.1.x and 2.6.5.2), reopen Platform Designer, and instantiate from IP Catalog.
So in short: your approach is valid; use manual _hw.tcl + IP search path discovery, not repeated Component Editor edits.
