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TMS320F28377s的ERRORSTS引脚

Other Parts Discussed in Thread: TMS320F28377S

TMS320F28377s的数据表中

ERRORSTS引脚的描述为:Error status output. This pin has an internal pulldown。

它的功能是检测28377s芯片的工作状态是否出现问题吗?

可以不使用这个引脚的功能吗,如果不使用怎么处理这个引脚,接上拉电阻还是电容接地?

(谢谢你抽空回答这个问题~)

  • 可以不使用 内部做了下拉 一般是将此引脚通过一个开关管控制一个LED灯
    用于提示状态 如果灯亮 说明ERROR发生
  • 谢谢mangui zhang的回答!

    您可以看一下www.ti.com/.../spruhx5e.pdf 的2.6.8 ERRORSTS Pin给出的具体描述

    The ERRORSTS pin is an ‘always output’ pin and remains low until an error is detected inside the chip. On an error, the ERRORSTS pin goes high until the corresponding internal error status flag for that error source is cleared.

    The ERRORSTS pin will be tri-stated until the chip power rails ramp up to the lower operational limit. As the ERRORSTS pin is an active-high pin, users who care about the state of this pin during power-up should connect an external pull-down on this pin.

    ERRORSTS引脚一直保持low直到有error发生(变为高电平),该引脚主要是用于指示是否有对应的error发生

    关于不使用这个引脚的功能,数据手册给出了相关的说明

    4.5 Connections for Unused Pins

    ERRORSTS No Connect