Editor callback in SOPC components

[Altera_Forum]

I'm trying to make a SOPC Builder component of a module written in Verilog.  

Besides some internal SOPC connections, my module has a parameterized, user-specified number of "conduit" ports: from 1 to 8.  Each of these external ports has some four parameters which must also be specified by the user. So, I want the GUI of my SOPC component to include the following: a) a dropdown list for specifying the number of ports ("NOP"); b) a number of field groups equal to NOP, each group containing the four parameter fields for one port. These groups of fields should appear and disappear dynamically when I change the value in the NOP dropdown list. Or, at least, unused port field groups should be greyed out when NOP is less than 8.  Do I understand it right that I have to make an editor callback in the .tcl script? The SOPC Builder user guide doesn't give a detailed explanation of how to make editor callbacks. I've looked through the source files of Altera-provided SOPC components, and learnt that all components with dynamically changing GUIs are written in Perl or something. Is it possible to write what I want to write using Tcl only?  I wouldn't want to study Perl right now... Maybe there are some comprehensive documents on SOPC components GUIs that could help me?

[Altera_Forum]

You can do all that in the validation and elaboration callbacks. The .tcl API is versioned so if you use the latest you might be able to do everything in a single callback (not sure haven't hand written a .tcl file in a while). Search the wiki for "modular SGDMA" and take a look at the .tcl files for each of the components in the /ip directory. There are interfaces like the response port (dispatcher core) that change based on the parameterization. The read/write masters have dropdown selection boxes and GUI options that enable/disable based on the parameterization. Make sure you use the same .tcl API otherwise the callback behavior will be different.