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jiongsi
Observer
Observer
723 Views
Registered: ‎07-02-2019

ILA waveform doesn't update after triggered

I have more than one Xilinx JTAG cable connected to the computer.

When debugging with ILA waveform, the waveform doesn't get updated sometimes after triggered.

Anyone knows why?

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3 Replies
anunesgu
Moderator
Moderator
600 Views
Registered: ‎02-09-2017

Hi @jiongsi,

So when the trigger happens, what is shown in the screen? Do you see the ILA buffer go full? What is the ILA state (idle, 50%, 100%)?

If possible, please post a screenshot so we can better understand the issue.

Also, what is the JTAG frequency you are using? could you try lowering it down to around 5-10MHz and test again to see if it works?

Thank you,

Andre Guerrero

Product Applications Engineer

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jiongsi
Observer
Observer
595 Views
Registered: ‎07-02-2019

Hi @anunesgu 

Thank you for your reply.

When the trigger happens, the ILA buffer goes full, the ILA state goes to 100%, everything looks normally triggered, except the waveform doesn't update.

I am using 3MHz JTAG frequency.

anunesgu
Moderator
Moderator
508 Views
Registered: ‎02-09-2017

Hi @jiongsi,

 

Thank you for the update!

Once the ILA triggers and you see the state go to 100%, could you please click on the ILA STOP (red square) button and see if that updates the waveforms?

I've seen the automatic waveform update get stuck in some occasions. By clicking on the stop button, it normally forces the ILA buffer to dump it's data and update the waveform canvas.

Please let us know if that works.

Thank you,

Andre Guerrero

Product Applications Engineer

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