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am335x运行后cpu很热



硬件是beaglebone black 

linux3.8.13 +xenomai

进入系统不到一分钟cpu就非常的热,

下面是cat /proc/cpuinfo的信息:

processor : 0
model name : ARMv7 Processor rev 2 (v7l)
BogoMIPS : 988.78
Features : swp half thumb fastmult vfp edsp thumbee neon vfpv3 tls
CPU implementer : 0x41
CPU architecture: 7
CPU variant : 0x3
CPU part : 0xc08
CPU revision : 2

Hardware : Generic AM33XX (Flattened Device Tree)
Revision : 0000
Serial : 0000000000000000
root@beaglebone:~#

是主频太高的原因么?通过上面的信息可以看出来主频是多少么?假如是的话该如何进行设置?谢谢。