| 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 cpufrequtils 2.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 -g powersave-c 0 cpufreq-set -g powersave-c 1
后 再查看 显示 analyzing CPU 0: driver: cpufreq-dt CPUs which run at the same hardware frequency: 0 1 2 3 CPUs which need to have their frequency coordinated by software: 0 1 2 3 maximum transition latency: 182 us. hardware limits: 408 MHz - 1.99 GHz available frequency steps: 408 MHz, 600 MHz, 816 MHz, 1.10 GHz, 1.42 GHz, 1.61 GHz, 1.80 GHz, 1.99 GHz available cpufreq governors: conservative, ondemand, userspace, powersave, interactive, performance current 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-dt CPUs which run at the same hardware frequency: 0 1 2 3 CPUs which need to have their frequency coordinated by software: 0 1 2 3 maximum transition latency: 182 us. hardware limits: 408 MHz - 1.99 GHz available frequency steps: 408 MHz, 600 MHz, 816 MHz, 1.10 GHz, 1.42 GHz, 1.61 GHz, 1.80 GHz, 1.99 GHz available cpufreq governors: conservative, ondemand, userspace, powersave, interactive, performance current 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-dt CPUs which run at the same hardware frequency: 0 1 2 3 CPUs which need to have their frequency coordinated by software: 0 1 2 3 maximum transition latency: 182 us. hardware limits: 408 MHz - 1.99 GHz available frequency steps: 408 MHz, 600 MHz, 816 MHz, 1.10 GHz, 1.42 GHz, 1.61 GHz, 1.80 GHz, 1.99 GHz available cpufreq governors: conservative, ondemand, userspace, powersave, interactive, performance current 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-dt CPUs which run at the same hardware frequency: 0 1 2 3 CPUs which need to have their frequency coordinated by software: 0 1 2 3 maximum transition latency: 182 us. hardware limits: 408 MHz - 1.99 GHz available frequency steps: 408 MHz, 600 MHz, 816 MHz, 1.10 GHz, 1.42 GHz, 1.61 GHz, 1.80 GHz, 1.99 GHz available cpufreq governors: conservative, ondemand, userspace, powersave, interactive, performance current 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 |
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