SDRAM to PL

I have a real time application whereby the ARM preprocesses data in SDRAM. These data need to be sent to the hardware accelerator in the PL that buffers some data an does eventually the real job.

Basically I need to transfer data from SDRAM to SRAM buffer in the PL.

I saw a number of post on transferring data from PL to SDRAM,mainly using AXI DMA.

I wonder what is the most efficient way to perform this task,

Thanks

Fabio

0 jafoste4 over 9 years ago

Hello Fabio,
I would suggest you look at the ZYNQ Hardware Speedway Training we have. Specifically Lab 6 which goes through a DMA example.
http://zedboard.com/course/developing-zynq%C2%AE-7000-all-programmable-soc-software-vivado-20133-201441-20152-and-20162
The most efficient thing to use for moving data around is the Snoop Controller and the DMA engine. It allows you to transfer data in parallel to the PS allowing it to be offloaded.
--Josh
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