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Altera_Forum's avatar
Altera_Forum
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8 years ago

Routing HPS gpio to an LED in FPGA region

Hi Is it possible to route an HPS gpio to an LED in FPGA region in arria 10 soc development kit? If possible please give information to do the same as I couldn't find settings to route HPS gp...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
8 years ago

Hi, I assume you mean you want to expose the interface of the HPS GPIO controller to the FPGA fabric, and then connect an FPGA pin to be directly toggled by the GPIO. As far as I know, you can't do this for Arria 10 (this can be done in Cyclone V).

One way to overcome this is to generate an PIO IP in the FPGA, and connect that IP to the LWH2F bridge. The drivers (linux and baremetal) for this IP is readily available.