This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

AM335X, nRESETIN_OUT 热复位问题



Hi,大家好

       请问 nRESETIN_OUT 复位信号 :输入输出是可以同时使用的吗?  如果不是,输入输出模式应该如何配置?

谢谢

  • 不建议输入输出同时使用,请看TRM上的说明。

    Caution must be used when implementing the nRESETIN_OUT as an bi-directional reset signal. Because
    of the short maximum time allowed using RSTTIME1, it does not supply an adequate debounce time for
    an external push button circuit. The processor could potentially start running while external components
    are still in reset. It is recommended that this signal be used as input only (do not connect to other devices
    as a reset) to implement a push button reset circuit to the AM335x, or an output only to be able to reset
    other devices after an AM335x reset completes.


    http://www.ti.com/lit/ug/spruh73p/spruh73p.pdf

  • 你好,

          我疑惑的是,作为  输出或者输入 的话应该如何配置呢?

      另外,作为输入时,直接输入低电平复位即可。 那作为输出时,应该如何配置呢,是不是只要配置  RSTTIME1  定时器就可以了?

    谢谢!