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dm8168芯片跑demo程序外界环境温度超不过40度



用的dm8168芯片,跑demo程序,加风扇,测试其表面温度大概在35摄氏度左右,程序运行良好,板子整体工作性能良好。

将外界环境温度提高到40℃后,系统即宕机。但如果运行其它小程序,外界环境温度到70℃,系统也能正常运行。

求大神指点,如何能让系统在外界环境温度到70℃时,继续运行demo程序?