STPC Vega : Finding a tri-state output

sylvain23 · ‎2003-11-21

Posted on November 21, 2003 at 09:41

sylvain23 · ‎2003-11-17

Posted on November 17, 2003 at 09:34

Do you know the default state of GPIO (before initialization).

I need an ouput in tri-state before bios has finish is initialization.

thanks.

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stephen239955_st · ‎2003-11-21

Posted on November 21, 2003 at 09:41

After reset, GPIOs are in input. This means that SPTC is not driving it. Depending on what you have on boards, if no-one else is driving it, then it will be in tri-state.

They remain in this condition until they are initialised, that is when the system needs them.