3568J降频
想对3568J进行降频处理，从内核选择 powersave模式后，也是不行 重新烧录固件后1.安装cpufrequtils：sudo apt-get install cpufrequtils2.查看cpu：sudo cpufreq-info （本命令从内核/硬件中收集并报告CPU频率信息）cpufreq-set -gpowersave-c 0cpufreq-set -gpowersave-c 1
[*]cpufreq-set -gpowersave-c 2
[*]cpufreq-set -gpowersave-c 3
后 再查看 显示analyzing CPU 0:driver: cpufreq-dtCPUs which run at the same hardware frequency: 0 1 2 3CPUs which need to have their frequency coordinated by software: 0 1 2 3maximum transition latency: 182 us.hardware limits: 408 MHz - 1.99 GHzavailable frequency steps: 408 MHz, 600 MHz, 816 MHz, 1.10 GHz, 1.42 GHz, 1.61 GHz, 1.80 GHz, 1.99 GHzavailable cpufreq governors: conservative, ondemand, userspace, powersave, interactive, performancecurrent policy: frequency should be within 408 MHz and 1.99 GHz. The governor "powersave" may decide which speed to use within this range.current CPU frequency is 408 MHz (asserted by call to hardware).analyzing CPU 1:driver: cpufreq-dtCPUs which run at the same hardware frequency: 0 1 2 3CPUs which need to have their frequency coordinated by software: 0 1 2 3maximum transition latency: 182 us.hardware limits: 408 MHz - 1.99 GHzavailable frequency steps: 408 MHz, 600 MHz, 816 MHz, 1.10 GHz, 1.42 GHz, 1.61 GHz, 1.80 GHz, 1.99 GHzavailable cpufreq governors: conservative, ondemand, userspace, powersave, interactive, performancecurrent policy: frequency should be within 408 MHz and 1.99 GHz. The governor "powersave" may decide which speed to use within this range.current CPU frequency is 408 MHz (asserted by call to hardware).analyzing CPU 2:driver: cpufreq-dtCPUs which run at the same hardware frequency: 0 1 2 3CPUs which need to have their frequency coordinated by software: 0 1 2 3maximum transition latency: 182 us.hardware limits: 408 MHz - 1.99 GHzavailable frequency steps: 408 MHz, 600 MHz, 816 MHz, 1.10 GHz, 1.42 GHz, 1.61 GHz, 1.80 GHz, 1.99 GHzavailable cpufreq governors: conservative, ondemand, userspace, powersave, interactive, performancecurrent policy: frequency should be within 408 MHz and 1.99 GHz. The governor "powersave" may decide which speed to use within this range.current CPU frequency is 408 MHz (asserted by call to hardware).analyzing CPU 3:driver: cpufreq-dtCPUs which run at the same hardware frequency: 0 1 2 3CPUs which need to have their frequency coordinated by software: 0 1 2 3maximum transition latency: 182 us.hardware limits: 408 MHz - 1.99 GHzavailable frequency steps: 408 MHz, 600 MHz, 816 MHz, 1.10 GHz, 1.42 GHz, 1.61 GHz, 1.80 GHz, 1.99 GHzavailable cpufreq governors: conservative, ondemand, userspace, powersave, interactive, performancecurrent policy: frequency should be within 408 MHz and 1.99 GHz. The governor "powersave" may decide which speed to use within this range.current CPU frequency is 408 MHz (asserted by call to hardware).但是 外接测试电流器 测量 还是无变化，关闭cpu也无变化 请问改如何降频
你这看起来已经降频成功了
cat /sys/bus/cpu/devices/cpu*/cpufreq/cpuinfo_cur_freq
查看频率
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