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Connecting two zedboards

Former Member over 9 years ago

I'm looking to connect two zedboards together. What I am looking to do is

read from an sd card on zedboard 1

write sd card data to block ram of zedboard 1,

read from block ram of zedboard 1,

send data to zedboard 2,

write data to block ram of zedboard 2,

read data from block ram of zedboard 2

write to sd card of zedboard 2

I've been told to use the FMC connector. Is there any documentation out there that might help walk me through this.

Any tips or suggestions are appreciated.

Is this something that can be done using ethernet connection? USB?

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0 jafoste4 over 9 years ago

Hello Cgonzales,
Unfortunatly I was only able to find a few posts on this subject.
https://forums.xilinx.com/t5/General-Technical-Discussion/Communication-Between-multiple-FPGAs/td-p/352867
http://electronics.stackexchange.com/questions/120695/high-speed-memory-interface-between-2-fpgas-virtex-6
http://zedboard.org/content/communicating-between-two-boards-which-dac-and-adc-works
I know using a FMC cable to interconnect two boards is somthing that has been done in the past, this method would be required for high-speed transfers.
If you do not care much about bandwidth, you could consider interconnecting the PS Pmods on both boards in a null modem configuration and use a UART peripheral on each board. You could also do the same with PL Pmods and interface of your choosing, but all will be low bandwidth.
Ethernet is possible, however it is more easy if you are using Linux. If you are not using Linux then use Lwip.
--Josh
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0 jafoste4 over 9 years ago

Hello Cgonzales,
Unfortunatly I was only able to find a few posts on this subject.
https://forums.xilinx.com/t5/General-Technical-Discussion/Communication-Between-multiple-FPGAs/td-p/352867
http://electronics.stackexchange.com/questions/120695/high-speed-memory-interface-between-2-fpgas-virtex-6
http://zedboard.org/content/communicating-between-two-boards-which-dac-and-adc-works
I know using a FMC cable to interconnect two boards is somthing that has been done in the past, this method would be required for high-speed transfers.
If you do not care much about bandwidth, you could consider interconnecting the PS Pmods on both boards in a null modem configuration and use a UART peripheral on each board. You could also do the same with PL Pmods and interface of your choosing, but all will be low bandwidth.
Ethernet is possible, however it is more easy if you are using Linux. If you are not using Linux then use Lwip.
--Josh
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Vote Up 0 Vote Down

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