FPGA, SoC, And CPLD Boards And Kits
FPGA Evaluation and Development Kits
Announcements
Intel Support hours are Monday-Fridays, 8am-5pm PST, except Holidays. Thanks to our community members who provide support during our down time or before we get to your questions. We appreciate you!

Need Forum Guidance? Click here
Search our FPGA Knowledge Articles here.
5148 Discussions

Error while Custom Component Importing to Qsys

TBaki
Beginner
1,440 Views

I just added custom VHDL component in qsys. The module is just AND gate logic. I'm using quartus 13.1 version I'm getting error as,. Error: No modules found when analyzing null.

0 Kudos
21 Replies
Nurina
Employee
1,370 Views

Hi,


In this version of Quartus, if there was any error in your code, that error message would be all the Component Editor would display, which can be difficult for debugging. (this is a known bug that since been fixed in v17.1 https://www.intel.com/content/www/us/en/programmable/support/support-resources/knowledge-base/tools/...)

 

Have you tried synthesizing the code directly in Quartus instead of through Qsys? It would provide detailed messages on any issues with the code. Once fixed, you can take it back through Qsys to build the component.

 

Another solution is to just migrate to a later version of Quartus where this issue is fixed.


Regards,

Nurina


TBaki
Beginner
1,367 Views

The module got synthesized in quartus. I can't migrate to other version as I'm using Cyclone III FPGA. Higher version quartus won't support this FPGA

Nurina
Employee
1,364 Views

Hi,


So after synthesizing on Quartus you tried to compile it on Qsys and only came across a problem there?


Do you get any error or warning messages on Quartus?


Regards,

Nurina


sstrell
Honored Contributor III
1,340 Views

Can you post the code?

TBaki
Beginner
1,331 Views

Quartus II 64-Bit Version 13.1.0 Build 162.

 

Error is Error: No modules found when analyzing null.

sstrell
Honored Contributor III
1,327 Views

You have a semicolon at the end of 

b : out std_logic

Remove the semicolon and you should be good to go.

Sidenote: technically this is a register, not an AND gate.

TBaki
Beginner
1,306 Views
sstrell
Honored Contributor III
1,287 Views

It's blocked in your screenshot, but is the top-level module set correctly there on the Files tab in the Component Editor (as the error mentions)?

TBaki
Beginner
1,279 Views

What you mean by component editor in Quartus II 64-Bit Version 13.1.0 Build 162?

sstrell
Honored Contributor III
1,266 Views

The Component Editor is the tool you're using in the screenshot to create the custom component.

TBaki
Beginner
1,249 Views

Ok. Yes I selected top level. It didn't work. 

Nurina
Employee
1,295 Views

Hi,


Can you try analyze the HDL file again? I've tried to replicate your error and the problem is solved after removing the semicolon.


Regards,

Nurina


TBaki
Beginner
1,280 Views

Hello,

May I know which version of quartus tool you used. I used Quartus II 64-Bit Version 13.1.0 Build 162. Possible to share your .qpf file please

Nurina
Employee
1,252 Views

Hi,

I used Quartus Prime Version 17.1. I believe that if it's analyzed correctly here it should be the same in v13.1 as well. 

 

I've attached the .qar file here.

 

Regards,

Nurina

TBaki
Beginner
1,251 Views

Hi, 

Version 15, 16 17 ..it will work. Try with version I mentioned. With version 16 it worked for me. 13.1 didn't work. so posted the query. Thanks

Nurina
Employee
1,244 Views

Hi,

 

Can you try remove 'is' after 'process(clk)' and see if there's a difference there?

 

Thanks,

Nurina

TBaki
Beginner
1,243 Views

Hi, 

 

Removed 'is'. But, no luck

Nurina
Employee
1,239 Views

Hi,

 

Can you try put parentheses after your first if statement like so

if (rising_edge(clk)) then

additionally try with and without the 'is' from my previous reply.

 

Thanks,

Nurina

TBaki
Beginner
1,249 Views

Hello,

 

I tried but didn't work

Nurina
Employee
1,237 Views

Hi,

I tried on Quartus II 64-Bit Version 13.1.0 Build 162 and it seems to work fine. Could you take a look?

Regards,

Nurina

Reply