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Altera_Forum
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7 years ago

Configuration and initialization of HPS - I/O in Cyclone V

Hello, I’m working on a bare-metal application with Altera Cyclone V with assembly language. I need to configure the I/O bank properties before use the pin by the peripherals in HPS. I read th...
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Altera_Forum
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7 years ago

Excuse me for the French reply posted by error

Hello,

Thanks very much for your reply which help me to better understand FPGA part.

My question concerns more the HPS part at the beginning of development flow.

The DS-5 AE cannot access to HPS GPIO which are unavailable.

I know that it is necessary to first initialize registers to make the HPS GPIO accessible.

For example it’s necessary to reset the bit 26 (GPIO1) of the register permodrst of the reset manager to release the reset state of GPIO1. But this action is not sufficing and I need to know what it’s necessary to do.

Thanks for your help.