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    t113主频问题

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    • C
      CgzXilinx LV 2 last edited by

      t113可以长期工作在1.2G主频吗,我看很多厂家只跑800m的

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      • Y
        yelong98 LV 7 @CgzXilinx last edited by

        @cgzxilinx 在 t113主频问题 中说:

        t113可以长期工作在1.2G主频吗,我看很多厂家只跑800m的

        同问,是否降低到800M就能到工业级温度范围

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        • W
          wyljkl LV 7 last edited by

          有一疑问,t113的主频在哪里降频,启动时的cpu频率可以修改,但是起到内核部分频率又再次到1.2g了

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          • J
            Jingyan LV 6 @wyljkl last edited by

            @wyljkl dts里面有频点表吗?试试

            # 查看当前各个核频率
            more /sys/devices/system/cpu/cpu*/cpufreq/cpuinfo_cur_freq | cat
            # 查看当前设置频点
            cat /sys/devices/system/cpu/cpufreq/policy0/scaling_cur_freq
            # 查看系统当前可用频点
            cat /sys/devices/system/cpu/cpufreq/policy0/scaling_available_frequencies
            # 查看当前调度策略
            cat /sys/devices/system/cpu/cpufreq/policy0/scaling_governor
            echo performance > /sys/devices/system/cpu/cpufreq/policy0/scaling_governor
            
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            • W
              wyljkl LV 7 @Jingyan last edited by

              @jingyan 你好,这些都是有值的:
              e80f9670-c5ef-4d46-a82d-3446d8d1072c-image.png

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              • W
                wyljkl LV 7 @wyljkl last edited by

                可以修改cpu主频了:
                echo userspace > /sys/devices/system/cpu/cpufreq/policy0/scaling_governor /用户策略/
                echo 912000 > /sys/devices/system/cpu/cpufreq/policy0/scaling_setspeed /修改cpu主频/

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