SPI and the frame interrupt

John Fisher

Other Parts Discussed in Thread: TMS320C5504

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?

over 13 years ago

0 John Fisher over 13 years ago

Expert 1030 points

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

0 BrandonAzbell over 13 years ago in reply to John Fisher

TI__Guru 64470 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.

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SPI and the frame interrupt