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: 
3,444 Views
Registered: ‎06-06-2011

Interfacing 2 Virtex 5 FPGAs

Jump to solution

need help interfacing two virtex-5 FPGAs.which is the best and easiest method?? 32 bit bi-directional or an LVDS design(whatsthis?)

0 Kudos
1 Solution

Accepted Solutions
Scholar drjohnsmith
Scholar
4,380 Views
Registered: ‎07-09-2009

Re: Interfacing 2 Virtex 5 FPGAs

Jump to solution

An open question , I'll try to give some sort of reply.

 

As said above, its highly app dependent.

 

but,

    try to avoid a bi directional buss,

         two uni directional buss's are much easier to get working. 

 

    A serial link is very easy to get working, use the SERDES in the IO pins.

        you can get a lot of Bit /sec down say a diff LVDS link.

 

    Assume both Virtex are on same board and close, not meters apart,

        you should have few problems,

 

    If you have the GTPs available, you can even connect up at a few Gb/sec,

       For slow signlas, you always have SPI ...

 

just a few examples,

 

 

<== If this was helpful, please feel free to give Kudos, and close if it answers your question ==>
3 Replies
Historian
Historian
3,434 Views
Registered: ‎02-25-2008

Re: Interfacing 2 Virtex 5 FPGAs

Jump to solution

@rohitmusalay009 wrote:

need help interfacing two virtex-5 FPGAs.which is the best and easiest method?? 32 bit bi-directional or an LVDS design(whatsthis?)


This is entirely application dependent.

----------------------------Yes, I do this for a living.
0 Kudos
Scholar drjohnsmith
Scholar
4,381 Views
Registered: ‎07-09-2009

Re: Interfacing 2 Virtex 5 FPGAs

Jump to solution

An open question , I'll try to give some sort of reply.

 

As said above, its highly app dependent.

 

but,

    try to avoid a bi directional buss,

         two uni directional buss's are much easier to get working. 

 

    A serial link is very easy to get working, use the SERDES in the IO pins.

        you can get a lot of Bit /sec down say a diff LVDS link.

 

    Assume both Virtex are on same board and close, not meters apart,

        you should have few problems,

 

    If you have the GTPs available, you can even connect up at a few Gb/sec,

       For slow signlas, you always have SPI ...

 

just a few examples,

 

 

<== If this was helpful, please feel free to give Kudos, and close if it answers your question ==>
3,422 Views
Registered: ‎06-06-2011

Re: Interfacing 2 Virtex 5 FPGAs

Jump to solution

thank you sir !!

0 Kudos