How to configure and use HPSGPI pin as interuppt

[snehal_p]

Hello,

How can we configure HPSGPI as interrupt, which flag do I check to use the interrupt.

How can I use HPSGPI as Interrupt?

Thanks,

snehal_p

[EBERLAZARE_I_Intel]

Hi,

Do you mean the HPS GPIO pins?

Also, which device are you referring to? Stratix 10 SoC, etc.

[snehal_p]

Hello,
Yes, HPS GPI pin
I'm using Cyclone 5 SOC
Thanks,
snehal_p

[EBERLAZARE_I_Intel]

Hi,

Thanks for the confirmation, let me check on my side and get back to you.

Apologies for the late responds as it was carried over the weekend, I shall get back to you in a few days as we have public holiday here in Malaysia.

[EBERLAZARE_I_Intel]

Hi,

May I know which environment that you want to do your testing?

Is it in Uboot or Linux env for your board testings?

[snehal_p]

Hi,

Linux environment

[EBERLAZARE_I_Intel]

Hi,

I am back, so you can use our GHRD for starters to test the interrupts that are readily available, you may check the documentation here in the "Interrupt Routing":

https://www.rocketboards.org/foswiki/Documentation/CycloneVSoCGSRD

[EBERLAZARE_I_Intel]

Hi,

Do you have any further questions?

[snehal_p]

Hi,

we we execute commands to determine which of the GPIO entries from /sys/class/gpio/ matches the offsets by searching for the address in the label entry, for PIO we receive the response but for hpsgpi there is no response.

Can you please help on how an I use HPSGPI9 as interrupt.

PFA screenshots.

Thanks,

snehal_p

[EBERLAZARE_I_Intel]

Hi,

Are you using the GHRD? Have you tried the RBO test using the GHRD?

Also, please share your device tree.

[snehal_p]

Hello,

No, I'm not using GHRD.

PFA .dts file.

Can you please elaborate on RBO test.

Thanks,

snehal_p

[EBERLAZARE_I_Intel]

Hi,

BTW, are you using the Cyclone V SoC Dev Kit? or custom board?

[snehal_p]

Hi,

Custom board

[EBERLAZARE_I_Intel]

Hi,

You may ignore the GHRD's test mentioned previously.

I have checked your device tree, also do you have the .qsys file?

From my knowledge, the HPS GPIO_9 must be unused in the HPS IP settings then assign them according to your board pin out layout:

https://www.intel.com/content/www/us/en/support/programmable/support-resources/devices/lit-dp.html

Then adjust the device tree accordingly.

[snehal_p]

Hi,

We are using HPSGPI input only pin, pin location is PIN_Y26

PFA block diagram.

We want to configure and use it as interrupt in a c code/ aplication

Can you please share the example code for the same.

Thanks,

snehal_p

[EBERLAZARE_I_Intel]

Hi,

We don't have the exact example C code. Could you provide your email?

[snehal_p]

Hi,

email id -  snehal.patil@sqmtechnologies.com

Thanks,

snehal_p

[EBERLAZARE_I_Intel]

Hi,

Please check your email for the example.

[EBERLAZARE_I_Intel]

Hi,

Do you have any further questions? Could we close the thread?

[EBERLAZARE_I_Intel]

Hi,

If you have further questions on the design, you may file a new thread. Please login to ‘https://supporttickets.intel.com’, view details of the desire request, and post a feed/response within the next 15 days to allow me to continue to support you. After 15 days, this thread will be transitioned to community support. The community users will be able to help you on your follow-up questions.

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