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Contributor

2 years ago

How to set massive data read/write between HPS and FPGA ?

Hi Im using cycloneVsoc (BareMetal) and trying to transfer a massive amount of data from HPS to FPGA. The thing is : if I use alt_write_xxxx() to transfer the data, there will be a big gap(around 2...

High-level Design Tools

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Contributor

2 years ago

Hi,

after i investigate, unfortunately data can not come as a stream. It must be put to SDRAM

to do that the DMA maybe involve. This example is probably worth looking at, it's a bare metal program but it give you an idea what has to happen at a low level to communicate with the DMA core: https://www.altera.com/support/support-resources/design-examples/soc/fpga-to-hps-bridges-design-example.html

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Contributor

2 years ago

Thank you,I'll check it later.