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TMS320F28386D: Out GPIO as input x-bar

Clément Letonnelier
Genius 3016 points

Part Number: TMS320F28386D

Tool/software:

Hello,

I have a GPIO output driven by CPU1 and a GPIO driven by CPU2.

I would like to output a AND of both any SW intervention.

So I was wondering if I could do that using the CLB with the GPIO outputs redirected to the CLB inputs through the input X-BAR.

Would that work out ? I believe so but I would like to get a confirmation.

Clément

  • +1
    TI__Prodigy 690 points

    Hello, Clement.

    The CLB is CPU independent, as the tiles are not tied to one specific CPU.

    Because of this, I can confirm that you can use the CLB Input X-Bar to connect the CLB to the GPIO outputs regardless of the CPU driving those GPIOs. (Note from the TRM on the Input X-Bar select value: "SELECT value greater than the available number of GPIO pins on a device (except 0xFFFF) will cause the destination to be driven '1'." )

    Best,

    Ryan