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GPIO Interrupts on C5502?

MikeH
Guru 15580 points

Unless I am overlooking something, I don't see a way for the GPIO lines on the C5502 to generate interrupts. Is this true? 

  • 0
    TI__Mastermind 30110 points

    Hi Mike,

    I believe you are correct - GPIO does not have interrupt path to the C5502 DSP.

    Pins INT[3:0] will interrupt the device. You also might be able to use timer input pin as interrupt.

    Hope this helps,
    Mark

  • 0 in reply to Mark M
    Guru 15580 points

    Mark,

    Mark Mckeown said:
    GPIO does not have interrupt path to the C5502 DSP

    Wow. That's some pretty old silicon.....:)

    Mark Mckeown said:
    Pins INT[3:0] will interrupt the device.

    Unfortunately, the ezdsp5502 does not bring these pins out (INT0 & INT1) and uses the others for (INT2, INT3) I2C and Ethernet. I guess I'll have to add jumper wires to INT0 & INT1 and run them to the radio interface connectors (I'm migrating a project from C5515).