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OMAP-138 null interrupt

Arthur Cartier
Intellectual 410 points
Other Parts Discussed in Thread: OMAP-L138

Hello,

I have a problem on a program with interruption, at some point the program enter the IRQ_handler function and is supposed to jump at the address pointed by the Global Prioritized Vector Register but the register value is 0x00000000 and according to the Global Prioritized Register their is currently no pending interruptions.

Does anyone have an idea of how this could happen ?

Best regards

Arthur

  • 0
    TI__Mastermind 43955 points

    Hi Arthur,

    Please provide us the following details.

    1. Which TI processor you use? Please provide the hardware details like custom board/ TI EVM e.t.c.,

    2. You mentioned about a program and it's interrupts. What does the program intended to do? What is that software? Is it supplied by TI or your own?If it is from TI, please mention the name of the package and it's version.

    However, the following TI literatures might be some references to you which talks about the setting up of interrupt vectors and it's vector tables.

    http://www.ti.com/lit/an/spra492a/spra492a.pdf

    http://www.ti.com/lit/an/spra036/spra036.pdf 

     

    Regards,

    Shankari

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  • 0 in reply to Shankari G
    Intellectual 410 points

    Hi Shankari,

    Thank you for your quick answer.

    I forgot to mention that

    1. I'm using an OMAP-L138 LCDK (the ARM core only).
    2. I'm using a small sequencer of my own that use a timer interrupt to sequence some tasks (currently all task are disabled) and when no task are being processed the sequencer check the coherence of some internal values.

    Best regards

    Arthur