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Visitor blindobs
Visitor
274 Views
Registered: ‎09-13-2018

CLOCK_DOMAIN vivado 2018.3

Hi,

 

I had created custom ip based on create new AXI4 peripherial in vivado 2018.2. Everything was fine, but when i switch to Vivado 2018.3 in bd_automatic_connection i got this warning:

 

WARNING: [BD 41-927] Following properties on pin /MYIP/control_axi_aclk have been updated from connected ip. They may not be synchronized with cell properties. You can set property on pin directly to confirm the value and resolve the warning.
CLK_DOMAIN=design_1_processing_system7_0_0_FCLK_CLK0

How to remove it, and whats cause it ?

 

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3 Replies
Moderator
Moderator
220 Views
Registered: ‎02-09-2017

Re: CLOCK_DOMAIN vivado 2018.3

Hi @blindobs,

Please take a look at the AR https://www.xilinx.com/support/answers/56610.html

It's not talking exactly about the issue you are seeing but the Error number and fixing process is the same.

Basically, because you've upgraded the IP in the design, sometimes it looses some of it's configuration properties (it's basically a bunch of meta data about what the IP is connected too, bus widths, clock values, etc.).

If you click on the pin /MYIP/control_axi_aclk and inspect its properties, you should see that the clocking speed might have changed to some default. Then you can just change it back to the actual clock speed that you are using and click the Validate BD to make sure it's accepted.

Thanks,

Andre Guerrero

Product Applications Engineer

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Visitor blindobs
Visitor
194 Views
Registered: ‎09-13-2018

Re: CLOCK_DOMAIN vivado 2018.3

thanks for replay.

 

I'll check solution on monday and see if it's helps

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Visitor blindobs
Visitor
157 Views
Registered: ‎09-13-2018

Re: CLOCK_DOMAIN vivado 2018.3

When i set manualy property of set_property CONFIG.CLK_DOMAIN {pspl_processing_system7_0_0_FCLK_CLK0} [get_bd_pins /MYIP/control_axi_aclk ] then i got warnings:

[BD 41-927] Following properties on pin /MYIP/control_axi_aclk have been updated from connected ip. They may not be synchronized with cell properties. You can set property on pin directly to confirm the value and resolve the warning.
FREQ_HZ=125000000

 

again when i set FREQ_HZ and CLOCK_DOMAIN manualy i got warning about PHASE being updated.

Also this warning about clock_domain happens when creating new design and adding 'fresh' ipcores.

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