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TMS320F28335: Using a GPIO to interrupt the processor

Part Number: TMS320F28335
Other Parts Discussed in Thread: C2000WARE, CONTROLSUITE

Tool/software:

I have a signal on GPIO51 that I need to use to interrupt the processor on the high-to-low transition. It appears that I can use XINT3 - XINT7 to interrupt with that GPIO signal but I'm confused on how to configure the various registers to set-up for and service the interrupt. Any similar examples would be helpful.

  • Hi Gail,

    We have an example in the C2000ware SDK called "External Interrupt" that shows an example of this functionality. You should be able to use this to setup the interrupt configurations and the initial ISR. The example is in the SDK path: [C2000ware install]\device_support\f2833x\examples\external_interrupt\. Please upvote this response if it answers your question Slight smile

    Best Regards,

    Delaney

  • I couldn't find the specified path but did find C:\ti\controlSUITE\device_support\f2833x\v132\DSP2833x_examples_ccsv4\external_interrupt. Thanks for your help.