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Altera_Forum
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10 years ago

accessing HPS core SPI master with internal FPGA logic

Hi, I am trying to access the HPS SPI master outputs/inputs and have it feed to logic inside my CYCLONE V fpga. Is there a way to do this without having to go outside of the FPGA and then hardw...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
10 years ago

The one in HPS will operate much faster. Adding an FPGA SPI core uses up resources on the FPGA. What advantage is there to using a core on the FPGA and routing to the HPS pins? It just seems like extra work to me given you already have software in HPS and can add SPI to it. You can use any FPGA pins for SPI so long as you put in ESD protection if it's going to be external.