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AM3715CUS configuration of pin gpio_30 & nreswarm

Frank S.
Prodigy 90 points

Hi,

is it possible to use the pin sys_nreswarm/gpio_30 as a normal input pin without any influence of the reset signal sys_nreswarm?

We try to use this pin for an other function, but during the power down sequence this pin goes low together with the nrespwron signal. Input signals on this pin are without any effect. We have configured the gpio_30 as input in mode 4. A pullup exists. We thought that the nreswarm function of this pin is only activ in mode 0!?

regards
Frank

  • 0
    TI__Guru 65405 points

    Hi Frank,

    You are using the right settings for gpio_30 - input in mode 4 but you should check configuration of the gpio_30 in u-boot and kernel. It is very possible somewhere in your source code the settings of the gpio_30 to be rewritten and used in mode 0 as sys_nreswarm.

    BR

    Tsvetolin Shulev