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Visitor
Visitor
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Registered: ‎12-19-2019

interrupt count in /proc/interrupts is not changing even after changing the value of memory through devmem

I have followed all the steps provided in the following link

https://xilinx-wiki.atlassian.net/wiki/spaces/A/pages/18842490/Testing+UIO+with+Interrupt+on+Zynq+Ultrascale

everything is fine I am getting uio0 in linux but after changing the value of the memory location provided in example value of interrupt count is not changing and push button interrupt is also not getting received, kindly help anyone, more information I am using zcu111 and vivado 2019.2 and vitis 2019.2

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Advisor
Advisor
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Registered: ‎01-28-2008

Hi @f35 

  You stated "after changing the value of the memory location provided in example" in your post. Which memory location are you referring to? In the example, the AXI GPIO IP is set to a memory range, which should match with the offset pointed to by /dev/mem access.

Thanks,

-Pat

 

Give kudos if helpful. Accept as solution if it solves your problem.
https://tuxengineering.com/blog

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Visitor
Visitor
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Registered: ‎12-19-2019

As given in that example I am changing in memory location 0xa0000120

Screenshot from 2020-10-19 17-15-55.png
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