AR# 51190


Zynq-7000 SoC OS - How Can I Determine CPU Clock Frequency in Linux?


Is there a way to find the rate of the ARM CPU clock frequency when the Linux operating system is running?


The maximum clock rates for the ARM Cortex-A9 APU can be found in the Zynq-7000 SoC datasheets:

To find the clock frequency at which the processor is running at a given time, use the following command in Linux:

cat /proc/cpuinfo

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Answer Number Answer Title Version Found Version Resolved
52599 Zynq-7000 SoC - Operating Systems Development N/A N/A
AR# 51190
Date 05/17/2018
Status Active
Type General Article
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