All of a sudden, the signals in in the Signal Window started disappearing whenever I change the view from "Data" to "Setup" or vica versa. I can get them to reappear by going down tothe "Hierarchy Display" window a clicking the box for the module that the signals are from. For example, if I have selected signals from and module called "mono_out", there is a "mono_out" entry in the "Hierarchy Display" window with a check box next to it. If this box is checked the signals from the "mono_out" module show up in the Signal Window. This box now always gets unchecked when I switch between "Data" and "Setup" and the corresponding signals disappear in the Signal Window. This did not happen until today when I switched to Quartus Prime Version 22.1std.2. How do I stop this from happening?

Have you tried saving the .stp file when the box is checked and then closing and reopening the .stp file to see if it now sticks?I've never seen that happen. If it continues, it's possible the .stp file is corrupted somehow.

Could you try to re-create the .stp file and see if the issue still persists? Best Regards,Richard Tan

We noticed that we haven't received a response from you regarding the latest previous question/reply/answer, and will now transition your inquiry to our community support. We apologize for any inconvenience this may cause and we appreciate your understanding. If you have any further questions or concerns, please don't hesitate to let us know. Thank you for reaching out to us!Best Regards,Richard Tanp/s: If you find any answers from the community or Intel Support to be helpful, we encourage you to mark them as the best answer or rate them 4/5 in the survey.

Hi,I want to confirm that Signaltap was updated with new features that are not necessarily helpful, at least when you aren't aware of it.I'm presently working with 22.4 Pro in a bigger project.1. I also experienced the said the "disappearing" nodes (automatically disabled in hierarchy display), but didn't yet fully understand if it's a bug or feature.2. More annoying, I repeatedly found newly added nodes hidden somewhere inside an existing data structure. I learned to consider carefully which line has the focus before adding new nodes. If I forgot to do so, I better go back to a safety copy than start searching the hidden nodes...I believe it's intended as feature, definitely it never happened in older Signaltap versions.Not specific to new version, a wrong mouse move sometimes makes Signaltap crash, e.g. when editing alias fields.Nevertheless I love the powerful tool.

I tried creating a brand new *.stp file, and I get the same results. Hence, if there is a problem with the *.stp file then it is a problem that comes with a newly created *.stp file.I thought that I had replied with the above comment, but I guess it never got sent as a reply. I am still awaiting an answer to this question as it is still happening and I n=have not received an answer that stops the signals from disappearing. Hence, I would like to reopen this case and keep it open until I get an answer. I am not sure how to reopen this case. I tried but was not able to do so.

Signals(nodes) in Signal Tap Node Window Disappear

20 Replies

RichardT_altera
Super Contributor
3 years ago
The engineering team is still investigating on this.
We appreciate your understanding and patience regarding this matter.

Best Regards,
Richard Tan
RichardT_altera
Super Contributor
3 years ago
Hi,

I've successfully replicated the issue, and it appears to be specific to the Windows 10 operating system. The engineering team has acknowledged the problem and intends to address it in a future Quartus release.
The current plan is to include the fix in Quartus 24.1std (subject to change), scheduled for release by the end of 2024. Are you comfortable with this timeline?

For your reference, the HSDES ticket is [15014572807].

Thank you for your feedback, and I apologize for any inconvenience caused.

Best Regards,
Richard Tan
RichardT_altera
Super Contributor
3 years ago
As this issue is planned to be addressed in a future Quartus release, I will transition this thread to community support.
If you have any further questions or concerns, please don't hesitate to reach out.
Thank you and have a great day!

Best Regards,
Richard Tan
- FvM
  Super Contributor
  2 years ago
  Hello,
  it seems that the bug is fixed in Quartus 24.2 Pro version. I checked with Signaltap from 24.2 stand-alone tools. It can be also used for Quartus std targets.
  
  Regards
  Frank

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Signals(nodes) in Signal Tap Node Window Disappear

20 Replies

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