Occasional ContributorCustomised IP parameter Problem
Hi everyone,
I came across a strange problem when using Quartus 15.1 standard edition to run a customised IP created myself.
I have attached the IP file for your reference in .txt form.
This ip is for lsu_ic_top.v module in Intel hld ip package.
Now one confusing thing is when using command (line 186 in the file):
set MWIDTH [ expr { [get_parameter_value MWIDTH_BYTES]*8 } ]
to set the MWIDTH value, the qsys just gives errors that MWIDTH_BYTES is empty.
I have, however, already set MWIDTH value to 32 using command (line 46 in the file):
set_parameter_value MWIDTH_BYTES 32
Currently I have tried all debug techniques, including printing MWIDTH in a file and changing files parameter properties.
Unfortunately, there is no method that has been succeefully solved this issue. Qsys of Quartus 15.1 just gives that "* cannot be used with empty string", indicating MWIDTH_BYTES is empty.
May I ask has anyone come across this before?
If not, may I ask if there are Intel-generated _hw.tcl for lsu_ic_top.v module?
Thank you in advance!
Mingqiang
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 validateThen 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.
- 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.
