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Procedure to add uClk_usr in Streaming DMA AFU

Navaneeth
Novice
2,463 Views

I want to run my AFU in uClk_usr domain in the Streaming DMA AFU sample example. Please can you provide the steps that need to be followed in order to achieve this.

 

Thank you

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29 Replies
JohnT_Intel
Employee
474 Views

Hi,


Usually the AFU does not need to have a special SDC for it as it is covered in the default SDC.


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raks
Beginner
455 Views

Hi,

I tried using uClk_usr with the help of clock crossing module. I instantiated the clock crossing module in the ccip_std_afu.sv  file and in spite of that, I got the "timing constraints not met" error.  What is the reason for getting that error and how to rectify it?

 

Thank you

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JohnT_Intel
Employee
450 Views

Hi,


Could you share with me the timing report or the compilation log?


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raks
Beginner
435 Views

Hi,

Please find the attachment of the log files.

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Navaneeth
Novice
417 Views
Hi
Any reply is much appreciated.
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JohnT_Intel
Employee
413 Views

Hi,

 

I do not observed that the timing constrant error you mention in the logs provided.

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raks
Beginner
397 Views

Hi,

The error can be seen in flame-job-script.sh.o891757 file. It is printed at the end of the file. 

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JohnT_Intel
Employee
388 Views

Hi,

 

You will need to try to recompile your design in different seeds to see if it is able to close the timing. May I know if the timing issue will impact your testing?

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Navaneeth
Novice
374 Views

Hi,

 

To reiterate the issue that we’re facing, it is that the timing constraints are not being met when we are synthesising our code using quartus for the purpose of getting the GBS file as output. The error files are attached in one of the previous messages.

 

We want to know how we can send a lower frequency of clock (user clock having 300 MHz) in the right manner to the avst decimator file so that we don’t get the timing constraints not met error.


We’re referring to the streaming dma afu bbb provided by Intel.

 

Thank you

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