UPGRADE YOUR BROWSER

We have detected your current browser version is not the latest one. Xilinx.com uses the latest web technologies to bring you the best online experience possible. Please upgrade to a Xilinx.com supported browser:Chrome, Firefox, Internet Explorer 11, Safari. Thank you!

cancel
Showing results for 
Search instead for 
Did you mean: 
Observer carruinar
Observer
6,360 Views
Registered: ‎06-19-2015

Synchronization between two Virtex-7


Hello,

I am doing a project and I need some ideas on how to synchronize data from 2 Virtex-7.

I have:

1. 2 high speed ADCs with the same clock but not synchronized between them.

2. Signal processing in the FPGA 1.

3. Signal processing in the FPGA 2.

4. Signal processing with samples 2 and 3. These samples must be synchronized.

* The FPGAs are connected by wires to introduce a delay.


I have thought about introducing a known signal in ADC1 and ADC2 and to use FPGA IODelays to synchronize, but  I don't know if it is the best option.

 

Thank you.

dsp.png
0 Kudos
5 Replies
Xilinx Employee
Xilinx Employee
6,345 Views
Registered: ‎08-01-2008

Re: Synchronization between two Virtex-7

you can use this IPs
http://www.xilinx.com/support/documentation/ip_documentation/axi_chip2chip/v4_2/pg067-axi-chip2chip.pdf
Thanks and Regards
Balkrishan
--------------------------------------------------------------------------------------------
Please mark the post as an answer "Accept as solution" in case it helped resolve your query.
Give kudos in case a post in case it guided to the solution.
0 Kudos
Observer carruinar
Observer
6,238 Views
Registered: ‎06-19-2015

Re: Synchronization between two Virtex-7

Thanks for the reply.

I need the maximum possible data stream speed. Is it better to use that Chip2Chip AURORA? I dont know when to choose to use one over the other.

0 Kudos
Moderator
Moderator
6,228 Views
Registered: ‎02-16-2010

Re: Synchronization between two Virtex-7

Please check Table 55 (or) Table 70 based on the Virtex-7 device you are using. Aurora 64b66b supports maximum possible line rate that the device can support..

 

Aurora 8b10b supports up to 6.6Gbps

------------------------------------------------------------------------------
Don't forget to reply, give kudo and accept as solution
------------------------------------------------------------------------------
0 Kudos
Observer carruinar
Observer
6,214 Views
Registered: ‎06-19-2015

Re: Synchronization between two Virtex-7

I mean that I don't know what are the benefits of using Chip2Chip or using AURORA. What things have to consider to choose one or the other?

0 Kudos
Moderator
Moderator
5,911 Views
Registered: ‎02-16-2010

Re: Synchronization between two Virtex-7

It depends on your use case requirements. Can you check the product guide of Aurora and chip2chip?

One basic difference, AXI chip2chip is used with designs containing processors. If there is no processor in your design, you can use the Aurora IP.
------------------------------------------------------------------------------
Don't forget to reply, give kudo and accept as solution
------------------------------------------------------------------------------
0 Kudos