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SKuma120's avatar
SKuma120
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7 years ago
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Interrupt processing not working

Hello , I am new to nios programming this can be a basic question. I have two external interrupts connected to external devices with different interrupt priorities one is 1 and other is 8 . Both th...
  • Ahmed_H_Intel1's avatar
    Ahmed_H_Intel1
    7 years ago
    Hi, Thanks for figuring out the mistake by yourself, in future I recommend you to use the VIC (Vectored Interrupt controller) IP. Regards.
Ahmed_H_Intel1's avatar
Ahmed_H_Intel1
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7 years ago
Hi, So what interface clears the interrupt register? Can you share with us your results?
SKuma120's avatar
SKuma120
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7 years ago

Its like two sensors connected as two i2c interface (user defined) to the system.

In verilog we made some mistake, after reading the result from one interface we cleared the interrupt for the both interfaces . So the isr for second interface did not work.

Now the issue is fixed. Thanks for the Help. 🙂