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Is it possible to route a GPIO input to a GPIO output internally in the OMAP?

Dean Harken
Prodigy 160 points
Other Parts Discussed in Thread: AM3703

I am wondering if there is a way to configure a GPIO pin as an input and configure the SCM to route that signal to another GPIO pin as an output.  I realize that I could write an ISR that captures the input signal on one GPIO and sets the output signal on the other, but I am curious about the possibility of routing the signal through hardware without software involvment.

This question comes from trying to route a signal from the board up to the POP flash/memory chip.  From looking at the 3703 TRM it does not appear to be possible.  Does anyone know any different?

Thanks in advance.

  • 0
    TI__Guru 64490 points

    There are no hardware connections as you are describing.  The only thing possible would be software intervention.

    You mention wanting to route a signal on the PCB to the POP flash memory device.  Is it possible this signal on the POP memory device is aligned with one of the feed-through signals on the AM3703?  There are a number of pads on the top of the package that are directly connected to balls on the bottom of the package.  Search for Feed-Through in the datasheet.