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Visitor ssh24
Visitor
247 Views
Registered: ‎02-26-2019

FREQ_HZ and Clock domain crossing

Hello,

I am using a Tri Mode Ethernet MAC along with a AXI direct memory access in my design.

When I have my design ready, the Synthesis fails due to the errors listed below:

  • [BD 41-237] Bus Interface property FREQ_HZ does not match between /tri_mode_ethernet_mac_0/s_axis_tx(125000000) and /axi_dma_0/M_AXIS_MM2S(100000000)
  • [BD 41-237] Bus Interface property CLK_DOMAIN does not match between /tri_mode_ethernet_mac_0/s_axis_tx(/clk_wiz_clk_out1) and /axi_dma_0/M_AXIS_MM2S(design_1_processing_system7_0_0_FCLK_CLK0

The properties are locked and read only, the result is not reflected after changing the xml and xci constraints. Also Clock converter and AXI Interconnect are not effective 

Awaiting your suggestions

Thank you

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4 Replies
Moderator
Moderator
223 Views
Registered: ‎03-16-2017

Re: BD 41-237 Bus Interface Property FREQ_HZ does not match

Hi @ssh24 ,

 

Have a look, these looks similar: 

https://forums.xilinx.com/t5/Welcome-Join/BD-41-237-Bus-Interface-property-FREQ-HZ-does-not-match/td-p/775283

https://www.xilinx.com/support/answers/56611.html

 

Regards,
hemangd

Don't forget to give kudos and mark it as accepted solution if your issue gets resolved.
Visitor ssh24
Visitor
202 Views
Registered: ‎02-26-2019

Re: BD 41-237 Bus Interface Property FREQ_HZ does not match

Hello @hemangd,
Thank you for the suggestions.

But unfortunately that doesn't seem to work as well. The Slave does not connects itself to the external port and also error persists after removing the FREQ_HZ Parameters.
Please help.

Regards,
ssh24
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Moderator
Moderator
163 Views
Registered: ‎11-09-2015

Re: BD 41-237 Bus Interface Property FREQ_HZ does not match

HI @ssh24 ,

You need to connect both interfaces to the same clock (clk_wiz_clk_out1) or you need to use an AXI interconnect to do clock domain crossing


Florent
Product Application Engineer - Xilinx Technical Support EMEA
**~ Don't forget to reply, give kudos, and accept as solution.~**
Community Manager
Community Manager
114 Views
Registered: ‎05-08-2017

Re: BD 41-237 Bus Interface Property FREQ_HZ does not match

Hi @ssh24 ,

If your issue is solved, please mark an appropriate response as Accepted Solution (more info on this can be found here: https://forums.xilinx.com/t5/help/faqpage/faq-category-id/solutions#solutions), so the topic can be completed then. We appreciate your help.

Thanks in advance and have a great day.
Kind Regards,
Devin Lance,
Xilinx Technical Support

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