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Altera_Forum's avatar
Altera_Forum
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9 years ago

High bandwidth data transfer between hps and fpga

Hi, I need to High bandwidth data transfer between hps and fpga. Which bridge should i use? I used light weight bridge but the speed of transfer data was up to 3MHz. Best Regards
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
9 years ago

In this example

https://rocketboards.org/foswiki/view/projects/datamover

it looks like the transfer from FPGA to HPS bridges are happening at 133MHz (multiply that with 128-bit, so 2.1GB/s assuming that the pipeline can be saturated)

It you just wanted to access the HPS SDRAM and do not need coherency, you can use the FPGA-to-SDRAM bridge instead - here's an example implementation:

https://rocketboards.org/foswiki/view/projects/cyclevsocsdramperformanceexampledesign

Hope this helps...