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What is the best way to transfer data from FPGA to HPS at 40 MHz rate?

Altera_Forum
Honored Contributor II
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I want to transfer data coming out from ADC connected to FPGA to the HPS. Later, I want to transfer it from HPS to a host computer through Ethernet. My question is what is the best SoC design that fit my requirements? 

 

* Writing to SDRAM memory using Modular Scatter-Gather DMA? 

or  

* FIFO with light-weight bridge and continues polling in my application running in the HPS? 

 

I have tried writing to SDRAM memory, but I'm having difficulties in working with memory descriptors ...:(  

 

I would really appreciate any help :) 

Thank you very much in advance!
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