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Adventurer
Adventurer
212 Views
Registered: ‎09-06-2019

Using EMIO input as interrupt

Hi, I want to hook up an EMIO as an externally generated interrupt to use in a custom linux driver but am unclear how I can properly reference a gpio pin as the interrupt parent for my custom device tree node.

 

Thanks!

2 Replies
Moderator
Moderator
143 Views
Registered: ‎09-12-2007

Re: Using EMIO input as interrupt

The DTG expects the interrupt to be of type interrupt in the cell properties. What you could do is make the EMIO external, and create a port (with type interrupt) in the BD, and connect this via the HDL wrapper. This will work

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Adventurer
Adventurer
105 Views
Registered: ‎09-06-2019

Re: Using EMIO input as interrupt

Hi, could you show how you are able to change port types into interrupt port types in vivado (2019.1)? From the gui I'm not able to change the port type from type undef to type irq:

Capture.PNG

Is this the incorrect way to go about changing the type or is there an alternate method?

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