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TI Home » TI E2E Community » Support Forums » Digital Signal Processors (DSP) » C5000 Ultra Low Power DSP » C5000 Ultra Low Power DSP Forum » SPI and the frame interrupt
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    SPI and the frame interrupt

    This question is answered
    John Fisher
    Posted by John Fisher
    on Apr 23 2012 22:20 PM
    Expert1020 points

    I'm interfacing the C5504 to an SPI flash device.

    It seems the core needs to execute instructions on every character. It can't just set up a frame and then instruct the SPI to receive or transmit it. So why would one ever enable the frame interrupt?

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    • John Fisher
      Posted by John Fisher
      on Apr 29 2012 19:05 PM
      Expert1020 points

      Since no one has answered, it would seem that the SPI frame interrupt is a redundant feature of this DSP.

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    • BrandonAzbell
      Posted by BrandonAzbell
      on Apr 29 2012 20:58 PM
      Verified Answer
      Verified by John Fisher
      Guru54850 points

      Since the TMS320C5504 does not implement DMA support for the SPI peripheral the CPU needs to handle each datum, the usefulness of the frame interrupt is diminished.

      Brandon

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