Article ID: 000084218 Content Type: Product Information & Documentation Last Reviewed: 04/13/2023

How can I enable interrupt support for the HLGPI[13:0] input-only pins?

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Description

The HLGPI[13:0] input-only pins of the Cyclone® V SX device share pins with the HPS DDR controller. To identify the pin location for these GPI pins, see the related solution.

Physically the HLGPI[13:0] signals are connected to GPIO2_porta_input[13:26] in the HPS. You can configure the HLGPI to generate interrupts just like other GPIO in GPIO2 component.  

To configure the GPIO interrupts, configure the following registers - gpio_inten, gpio_intmask, gpio_inttype_level, and the gpio_int_polarity registers.  These registers can be found in the address map for the Cyclone V HPS device at the Cyclone V HPS Register Address Map and Definitions web page.

 

 

Resolution

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Related Products

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Cyclone® V SX SoC FPGA

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