imx6sl 中断导致的死机

张松源 · ‎03-22-2018

遇到一个死机问题，我把很多模块的驱动都摘除了，整机耗电电流在15mA左右，有时候会突然跳到40多mA，然后再恢复到15mA，差不多一段时间过后就死机了，kernel没有什么log可看到，这时候耗电就在40多mA 有什么地方会导致电流突然跳变到40多mA的呢？

我机器连着串口线，每次串口输入命令，耗电也在40多mA左右，猜测是中断导致的这个耗电？

这样猜测对么？有什么解决问题的建议？

（ps：运行的是android系统。）

jimmychan · ‎03-26-2018

It is very hard to guess. You need to use the tools to check the running performance. e.g. Trace32 from Lauterbach or debugger/probe from GreenHills.

张松源 · ‎03-26-2018

I don't know what is "Trace32 from Lauterbach or debugger/probe from GreenHills" mean,

what tools do you think I should use?

jimmychan · ‎03-26-2018

You can find the tools from here:

张松源 · ‎03-27-2018

Thank you, could you just tell me which tools is using to check the running performance, I'm not good at finding these resource.

Best regards!

jimmychan · ‎03-27-2018

I didn't use this kind of tools because we don't write the application. You may contact the tool's company to get more details information.