[SOLVED] What is the best approch to connect between each other fpga board?

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Hi,

I'd like to connect to 3 fpga board but those fpga boards are moved away about 3 meter.

In this case, I'd like to know which the connection methodologies are better approch.

1 zynq board
2 atrix boards
Star connection between them.
 
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Another poorly posed question using nearly incomprehensible English, that lacks any requirements, typical u24c02 question :roll:

rs422 would work great based on the information provided.

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Edit I see you've improved your question.
 

Thanks but they have each resister map and need to 40MB/s over.
Is there any good communication protocol between each other?
 

Is it 40 Mbit/s or 40 MByte/s ?

With 40 Mbit/s you can use LVDS and the old UART protocol. You may have to design the UART yourself, but it is easy.

With 40 Mbyte/s = 320 Mbit/s you will have some trouble unless your FPGAs have high-speed serial transceivers or Gigabit ethernet.
 
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