Customised IP parameter Problem

I am using Quartus version 20.1 and I try to add this IP into Platform Designer, it complained first:

Error: set_parameter_value not allowed during GLOBAL while executing the set_parameter_value AWIDTH 31 and so.

and later pop up the error that you mentioned after resolving the first one:

Error: get_parameter_value not allowed during GLOBAL while executing "get_parameter_value MWIDTH_BYTES" invoked from within "expr { [get_parameter_value MWIDTH_BYTES]*8 } " invoked from within "set MWIDTH [ expr { [get_parameter_value MWIDTH_BYTES]*8 } ]"

To solve these errors, you will need to add elaboration callback or validate callback in the _hw.tcl.

set_module_property ELABORATION_CALLBACK validate
set_module_property VALIDATION_CALLBACK validate

Then you need add callback procedure for set_parameter_value and get_parameter_value. With that, the error should be gone for now.

proc elaborate {} {
set_parameter_value
get_parameter_value
}

You may checkout the User Guide below for further details.

https://www.intel.com/content/dam/www/programmable/us/en/pdfs/literature/ug/ug-qpp-platform-designer.pdf

- Creating Platform Designer Components on page 89

- Example 6. Sample _hw.tcl Component with User Alterable Expressions on page 100

Else, you can check for the <quartus_installation_directory>/ip/altera for any available _hw.tcl file as a reference.