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Voyager
Voyager
305 Views
Registered: ‎05-14-2017

DDR memory requirement for ZYNQ FPGA

Does the ZYNQ design requires an external DDR memory to function? I read that the the FSBL actually is moved from the Flash Image to OCM or does it move to DDR memory instead and run off from there?

I noticed that all tutorial always configure the DDR  connection from the ZYNQ, even for the simplest design with the Hello_World app.

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Moderator
Moderator
294 Views
Registered: ‎03-19-2014

Re: DDR memory requirement for ZYNQ FPGA

DDR is not required for either the Zynq 7000 or the Zynq UltraScale+ MPSoC.   Look at the Wiki for details 

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Xilinx Employee
Xilinx Employee
261 Views
Registered: ‎09-01-2014

Re: DDR memory requirement for ZYNQ FPGA

DDR is not required but it depends on your application. Helloworld doesn’t need DDR, you can modify the linker script to make it run on OCM.
OCM is only 256KB, if it cannot meet your requirement, you would need the DDR.
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