Template:RK3399 Android PWMFan/zh

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散热风扇的速度设置

散热风扇使用PWM来实现自动调速,会根据当前的CPU温度来决定风扇的开关,以及风扇的转速,如果当前的CPU温度不高,风扇会被关闭或者以较低转速旋转 (减少不必要的环境噪声),如果你想改变风扇的调速行为,请修改Android bsp源代码中的以下文件:

device/rockchip/rk3399/nanopc-t4/pwm_fan.sh

需要禁止开机自动启动风扇(比如你需要连接其他的PWM设备),请修改Android bsp源代码中的以下文件:

device/rockchip/rk3399/init.rk3399.rc

对源代码做了修改后,需要重新编译Android。