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AAlas3's avatar
AAlas3
Icon for Occasional Contributor rankOccasional Contributor
6 years ago

Nios II and interrupt problem

Hey guys, I am new to Nios system design and I am facing problem regarding interrupts, I wrote a code as specified in HAL API interrupt example in Nios II software handbook but when I activate interrupt the processor doesn't go to ISR but it just freeze and I couldn't back to main function, above is a screenshot of my C code in eclipse.

I am using DE2-115 board

1 Reply

  • Ahmed_H_Intel1's avatar
    Ahmed_H_Intel1
    Icon for Frequent Contributor rankFrequent Contributor
    6 years ago

    Hi,

    BTW you didn't include the system.h header file, which is very important to define the components Bases. Plus I recommend to include PIO register header file and the replace the IORD and IOWR into the While(1) function with the following:

    IORD_ALTERA_AVALON_PIO_DATA

    IOWR_ALTERA_AVALON_PIO_DATA

    Regards,